Prepare v2014.04-rc2

Signed-off-by: Tom Rini <trini@ti.com>

.gitignore

@@ -5,16 +5,20 @@
 #
 # Normal rules
 #
-
-*.rej
-*.orig
-*.a
+.*
 *.o
+*.o.*
+*.a
+*.s
 *.su
-*~
+*.mod.c
+*.i
+*.lst
+*.order
+*.elf
 *.swp
-*.patch
 *.bin
+*.patch
 *.cfgtmp
 *.dts.tmp
 
@@ -24,36 +28,21 @@
 #
 # Top-level generic files
 #
-
 /MLO*
 /SPL
 /System.map
-/u-boot
-/u-boot.elf
-/u-boot.hex
-/u-boot.imx
-/u-boot-with-spl.imx
-/u-boot-with-nand-spl.imx
-/u-boot.map
-/u-boot.srec
-/u-boot.ldr
-/u-boot.ldr.hex
-/u-boot.ldr.srec
-/u-boot.img
-/u-boot.kwb
-/u-boot.sha1
-/u-boot.dis
-/u-boot.lds
-/u-boot.ubl
-/u-boot.ais
-/u-boot.dtb
-/u-boot.sb
+/u-boot*
+
+#
+# git files that we don't want to ignore even it they are dot-files
+#
+!.gitignore
+!.mailmap
 
 #
 # Generated files
 #
 
-*.depend*
 /LOG
 /errlog
 /reloc_off
@@ -62,10 +51,13 @@
 /spl/*
 /tpl/
 
+#
+# Generated include files
+#
+/include/config/
 /include/generated/
 /include/spl-autoconf.mk
 /include/tpl-autoconf.mk
-asm-offsets.s
 
 # stgit generated dirs
 patches-*
@@ -91,3 +83,7 @@ GPATH
 GRTAGS
 GSYMS
 GTAGS
+
+*.orig
+*~
+\#*#

Kbuild

@@ -0,0 +1,87 @@
+#
+# Kbuild for top-level directory of U-Boot
+# This file takes care of the following:
+# 1) Generate generic-asm-offsets.h
+# 2) Generate asm-offsets.h
+
+#####
+# 1) Generate generic-asm-offsets.h
+
+generic-offsets-file := include/generated/generic-asm-offsets.h
+
+always  := $(generic-offsets-file)
+targets := $(generic-offsets-file) lib/asm-offsets.s
+
+quiet_cmd_generic-offsets = GEN     $@
+define cmd_generic-offsets
+	(set -e; \
+	 echo "#ifndef __GENERIC_ASM_OFFSETS_H__"; \
+	 echo "#define __GENERIC_ASM_OFFSETS_H__"; \
+	 echo "/*"; \
+	 echo " * DO NOT MODIFY."; \
+	 echo " *"; \
+	 echo " * This file was generated by Kbuild"; \
+	 echo " *"; \
+	 echo " */"; \
+	 echo ""; \
+	 sed -ne $(sed-y) $<; \
+	 echo ""; \
+	 echo "#endif" ) > $@
+endef
+
+# We use internal kbuild rules to avoid the "is up to date" message from make
+lib/asm-offsets.s: lib/asm-offsets.c FORCE
+	$(Q)mkdir -p $(dir $@)
+	$(call if_changed_dep,cc_s_c)
+
+$(obj)/$(generic-offsets-file): lib/asm-offsets.s Kbuild
+	$(Q)mkdir -p $(dir $@)
+	$(call cmd,generic-offsets)
+
+#####
+# 2) Generate asm-offsets.h
+#
+
+ifneq ($(wildcard $(srctree)/$(CPUDIR)/$(SOC)/asm-offsets.c),)
+offsets-file := include/generated/asm-offsets.h
+endif
+
+always  += $(offsets-file)
+targets += $(offsets-file)
+targets += $(CPUDIR)/$(SOC)/asm-offsets.s
+
+
+# Default sed regexp - multiline due to syntax constraints
+define sed-y
+	"/^->/{s:->#\(.*\):/* \1 */:; \
+	s:^->\([^ ]*\) [\$$#]*\([-0-9]*\) \(.*\):#define \1 \2 /* \3 */:; \
+	s:^->\([^ ]*\) [\$$#]*\([^ ]*\) \(.*\):#define \1 \2 /* \3 */:; \
+	s:->::; p;}"
+endef
+
+CFLAGS_asm-offsets.o := -DDO_DEPS_ONLY
+
+quiet_cmd_offsets = GEN     $@
+define cmd_offsets
+	(set -e; \
+	 echo "#ifndef __ASM_OFFSETS_H__"; \
+	 echo "#define __ASM_OFFSETS_H__"; \
+	 echo "/*"; \
+	 echo " * DO NOT MODIFY."; \
+	 echo " *"; \
+	 echo " * This file was generated by Kbuild"; \
+	 echo " *"; \
+	 echo " */"; \
+	 echo ""; \
+	 sed -ne $(sed-y) $<; \
+	 echo ""; \
+	 echo "#endif" ) > $@
+endef
+
+# We use internal kbuild rules to avoid the "is up to date" message from make
+$(CPUDIR)/$(SOC)/asm-offsets.s: $(CPUDIR)/$(SOC)/asm-offsets.c FORCE
+	$(Q)mkdir -p $(dir $@)
+	$(call if_changed_dep,cc_s_c)
+
+$(obj)/$(offsets-file): $(CPUDIR)/$(SOC)/asm-offsets.s
+	$(call cmd,offsets)

MAKEALL

@@ -398,8 +398,6 @@ LIST_at91="$(targets_by_soc at91)"
 
 LIST_pxa="$(targets_by_cpu pxa)"
 
-LIST_ixp="$(targets_by_cpu ixp)"
-
 #########################################################################
 ## SPEAr Systems
 #########################################################################
@@ -529,6 +527,12 @@ LIST_sparc="$(targets_by_arch sparc)"
 
 LIST_nds32="$(targets_by_arch nds32)"
 
+#########################################################################
+## ARC Systems
+#########################################################################
+
+LIST_arc="$(targets_by_arch arc)"
+
 #-----------------------------------------------------------------------
 
 get_target_location() {
@@ -668,8 +672,6 @@ build_target() {
 		output_dir="${OUTPUT_PREFIX}"
 	fi
 
-	export BUILD_DIR="${output_dir}"
-
 	target_arch=$(get_target_arch ${target})
 	eval cross_toolchain=\$CROSS_COMPILE_`echo $target_arch | tr '[:lower:]' '[:upper:]'`
 	if [ "${cross_toolchain}" ] ; then
@@ -680,6 +682,10 @@ build_target() {
 	    MAKE=make
 	fi
 
+	if [  "${output_dir}" != "." ] ; then
+		MAKE="${MAKE} O=${output_dir}"
+	fi
+
 	${MAKE} distclean >/dev/null
 	${MAKE} -s ${target}_config
 
@@ -694,7 +700,7 @@ build_target() {
 	if [ $BUILD_MANY == 1 ] ; then
 		trap - TERM
 
-		${MAKE} -s tidy
+		${MAKE} -s clean
 
 		if [ -s ${LOG_DIR}/${target}.ERR ] ; then
 			cp ${LOG_DIR}/${target}.ERR ${OUTPUT_PREFIX}/ERR/${target}

README

@@ -141,7 +141,6 @@ Directory Hierarchy:
 	/s3c24x0	Files specific to Samsung S3C24X0 CPUs
       /arm926ejs	Files specific to ARM 926 CPUs
       /arm1136		Files specific to ARM 1136 CPUs
-      /ixp		Files specific to Intel XScale IXP CPUs
       /pxa		Files specific to Intel XScale PXA CPUs
       /sa1100		Files specific to Intel StrongARM SA1100 CPUs
     /lib		Architecture specific library files
@@ -472,6 +471,37 @@ The following options need to be configured:
 		Board config to use DDR3. It can be enabled for SoCs with
 		Freescale DDR3 controllers.
 
+		CONFIG_SYS_FSL_IFC_BE
+		Defines the IFC controller register space as Big Endian
+
+		CONFIG_SYS_FSL_IFC_LE
+		Defines the IFC controller register space as Little Endian
+
+		CONFIG_SYS_FSL_PBL_PBI
+		It enables addition of RCW (Power on reset configuration) in built image.
+		Please refer doc/README.pblimage for more details
+
+		CONFIG_SYS_FSL_PBL_RCW
+		It adds PBI(pre-boot instructions) commands in u-boot build image.
+		PBI commands can be used to configure SoC before it starts the execution.
+		Please refer doc/README.pblimage for more details
+
+		CONFIG_SYS_FSL_DDR_BE
+		Defines the DDR controller register space as Big Endian
+
+		CONFIG_SYS_FSL_DDR_LE
+		Defines the DDR controller register space as Little Endian
+
+		CONFIG_SYS_FSL_DDR_SDRAM_BASE_PHY
+		Physical address from the view of DDR controllers. It is the
+		same as CONFIG_SYS_DDR_SDRAM_BASE for  all Power SoCs. But
+		it could be different for ARM SoCs.
+
+		CONFIG_SYS_FSL_DDR_INTLV_256B
+		DDR controller interleaving on 256-byte. This is a special
+		interleaving mode, handled by Dickens for Freescale layerscape
+		SoCs with ARM core.
+
 - Intel Monahans options:
 		CONFIG_SYS_MONAHANS_RUN_MODE_OSC_RATIO
 
@@ -887,6 +917,7 @@ The following options need to be configured:
 		CONFIG_CMD_BSP		* Board specific commands
 		CONFIG_CMD_BOOTD	  bootd
 		CONFIG_CMD_CACHE	* icache, dcache
+		CONFIG_CMD_CLK   	* clock command support
 		CONFIG_CMD_CONSOLE	  coninfo
 		CONFIG_CMD_CRC32	* crc32
 		CONFIG_CMD_DATE		* support for RTC, date/time...
@@ -907,10 +938,11 @@ The following options need to be configured:
 		CONFIG_CMD_EXPORTENV	* export the environment
 		CONFIG_CMD_EXT2		* ext2 command support
 		CONFIG_CMD_EXT4		* ext4 command support
+		CONFIG_CMD_FS_GENERIC	* filesystem commands (e.g. load, ls)
+					  that work for multiple fs types
 		CONFIG_CMD_SAVEENV	  saveenv
 		CONFIG_CMD_FDC		* Floppy Disk Support
 		CONFIG_CMD_FAT		* FAT command support
-		CONFIG_CMD_FDOS		* Dos diskette Support
 		CONFIG_CMD_FLASH	  flinfo, erase, protect
 		CONFIG_CMD_FPGA		  FPGA device initialization support
 		CONFIG_CMD_FUSE		* Device fuse support
@@ -1709,7 +1741,7 @@ CBFS (Coreboot Filesystem) support
 
 		If this option is set, then U-Boot will prevent the environment
 		variable "splashimage" from being set to a problematic address
-		(see README.displaying-bmps and README.arm-unaligned-accesses).
+		(see README.displaying-bmps).
 		This option is useful for targets where, due to alignment
 		restrictions, an improperly aligned BMP image will cause a data
 		abort. If you think you will not have problems with unaligned
@@ -2832,11 +2864,31 @@ CBFS (Coreboot Filesystem) support
 		CONFIG_RSA
 
 		This enables the RSA algorithm used for FIT image verification
-		in U-Boot. See doc/uImage/signature for more information.
+		in U-Boot. See doc/uImage.FIT/signature.txt for more information.
 
 		The signing part is build into mkimage regardless of this
 		option.
 
+- bootcount support:
+		CONFIG_BOOTCOUNT_LIMIT
+
+		This enables the bootcounter support, see:
+		http://www.denx.de/wiki/DULG/UBootBootCountLimit
+
+		CONFIG_AT91SAM9XE
+		enable special bootcounter support on at91sam9xe based boards.
+		CONFIG_BLACKFIN
+		enable special bootcounter support on blackfin based boards.
+		CONFIG_SOC_DA8XX
+		enable special bootcounter support on da850 based boards.
+		CONFIG_BOOTCOUNT_RAM
+		enable support for the bootcounter in RAM
+		CONFIG_BOOTCOUNT_I2C
+		enable support for the bootcounter on an i2c (like RTC) device.
+			CONFIG_SYS_I2C_RTC_ADDR = i2c chip address
+			CONFIG_SYS_BOOTCOUNT_ADDR = i2c addr which is used for
+						    the bootcounter.
+			CONFIG_BOOTCOUNT_ALEN = address len
 
 - Show boot progress:
 		CONFIG_SHOW_BOOT_PROGRESS
@@ -3418,6 +3470,9 @@ typically in board_init_f() and board_init_r().
 Configuration Settings:
 -----------------------
 
+- CONFIG_SYS_SUPPORT_64BIT_DATA: Defined automatically if compiled as 64-bit.
+		Optionally it can be defined to support 64-bit memory commands.
+
 - CONFIG_SYS_LONGHELP: Defined when you want long help messages included;
 		undefine this when you're short of memory.
 
@@ -3690,12 +3745,6 @@ Configuration Settings:
 	its config.mk file). If you find problems enabling this option on
 	your board please report the problem and send patches!
 
-- CONFIG_SYS_SYM_OFFSETS
-	This is set by architectures that use offsets for link symbols
-	instead of absolute values. So bss_start is obtained using an
-	offset _bss_start_ofs from CONFIG_SYS_TEXT_BASE, rather than
-	directly. You should not need to touch this setting.
-
 - CONFIG_OMAP_PLATFORM_RESET_TIME_MAX_USEC (OMAP only)
 	This is set by OMAP boards for the max time that reset should
 	be asserted. See doc/README.omap-reset-time for details on how

api/api_platform-powerpc.c

@@ -30,7 +30,7 @@ int platform_sys_info(struct sys_info *si)
 	si->clk_bus = gd->bus_clk;
 	si->clk_cpu = gd->cpu_clk;
 
-#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_8260) || \
+#if defined(CONFIG_5xx) || defined(CONFIG_8xx) || defined(CONFIG_MPC8260) || \
     defined(CONFIG_E500) || defined(CONFIG_MPC86xx)
 #define bi_bar	bi_immr_base
 #elif defined(CONFIG_MPC5xxx)

arch/arc/config.mk

@@ -0,0 +1,35 @@
+#
+# Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+ifndef CONFIG_SYS_BIG_ENDIAN
+CONFIG_SYS_LITTLE_ENDIAN = 1
+endif
+
+ifdef CONFIG_SYS_LITTLE_ENDIAN
+ARC_CROSS_COMPILE := arc-buildroot-linux-uclibc-
+endif
+
+ifdef CONFIG_SYS_BIG_ENDIAN
+ARC_CROSS_COMPILE := arceb-buildroot-linux-uclibc-
+PLATFORM_LDFLAGS += -EB
+endif
+
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := $(ARC_CROSS_COMPILE)
+endif
+
+PLATFORM_CPPFLAGS += -ffixed-r25 -D__ARC__ -DCONFIG_ARC -gdwarf-2
+
+LDSCRIPT := $(SRCTREE)/$(CPUDIR)/u-boot.lds
+
+# Needed for relocation
+LDFLAGS_FINAL += -pie
+
+# Load address for standalone apps
+CONFIG_STANDALONE_LOAD_ADDR ?= 0x82000000
+
+# Support generic board on ARC
+__HAVE_ARCH_GENERIC_BOARD := y

arch/arc/cpu/arc700/Makefile

@@ -0,0 +1,13 @@
+#
+# Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+extra-y	+= start.o
+
+obj-y	+= cache.o
+obj-y	+= cpu.o
+obj-y	+= interrupts.o
+obj-y	+= reset.o
+obj-y	+= timer.o

arch/arc/cpu/arc700/cache.c

@@ -0,0 +1,138 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <config.h>
+#include <asm/arcregs.h>
+
+/* Bit values in IC_CTRL */
+#define IC_CTRL_CACHE_DISABLE	(1 << 0)
+
+/* Bit values in DC_CTRL */
+#define DC_CTRL_CACHE_DISABLE	(1 << 0)
+#define DC_CTRL_INV_MODE_FLUSH	(1 << 6)
+#define DC_CTRL_FLUSH_STATUS	(1 << 8)
+
+int icache_status(void)
+{
+	return (read_aux_reg(ARC_AUX_IC_CTRL) & IC_CTRL_CACHE_DISABLE) !=
+	       IC_CTRL_CACHE_DISABLE;
+}
+
+void icache_enable(void)
+{
+	write_aux_reg(ARC_AUX_IC_CTRL, read_aux_reg(ARC_AUX_IC_CTRL) &
+		      ~IC_CTRL_CACHE_DISABLE);
+}
+
+void icache_disable(void)
+{
+	write_aux_reg(ARC_AUX_IC_CTRL, read_aux_reg(ARC_AUX_IC_CTRL) |
+		      IC_CTRL_CACHE_DISABLE);
+}
+
+void invalidate_icache_all(void)
+{
+#ifndef CONFIG_SYS_ICACHE_OFF
+	/* Any write to IC_IVIC register triggers invalidation of entire I$ */
+	write_aux_reg(ARC_AUX_IC_IVIC, 1);
+#endif /* CONFIG_SYS_ICACHE_OFF */
+}
+
+int dcache_status(void)
+{
+	return (read_aux_reg(ARC_AUX_DC_CTRL) & DC_CTRL_CACHE_DISABLE) !=
+		DC_CTRL_CACHE_DISABLE;
+}
+
+void dcache_enable(void)
+{
+	write_aux_reg(ARC_AUX_DC_CTRL, read_aux_reg(ARC_AUX_DC_CTRL) &
+		      ~(DC_CTRL_INV_MODE_FLUSH | DC_CTRL_CACHE_DISABLE));
+}
+
+void dcache_disable(void)
+{
+	write_aux_reg(ARC_AUX_DC_CTRL, read_aux_reg(ARC_AUX_DC_CTRL) |
+		      DC_CTRL_CACHE_DISABLE);
+}
+
+void flush_dcache_all(void)
+{
+	/* Do flush of entire cache */
+	write_aux_reg(ARC_AUX_DC_FLSH, 1);
+
+	/* Wait flush end */
+	while (read_aux_reg(ARC_AUX_DC_CTRL) & DC_CTRL_FLUSH_STATUS)
+		;
+}
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+static void dcache_flush_line(unsigned addr)
+{
+#if (CONFIG_ARC_MMU_VER > 2)
+	write_aux_reg(ARC_AUX_DC_PTAG, addr);
+#endif
+	write_aux_reg(ARC_AUX_DC_FLDL, addr);
+
+	/* Wait flush end */
+	while (read_aux_reg(ARC_AUX_DC_CTRL) & DC_CTRL_FLUSH_STATUS)
+		;
+
+#ifndef CONFIG_SYS_ICACHE_OFF
+	/*
+	 * Invalidate I$ for addresses range just flushed from D$.
+	 * If we try to execute data flushed above it will be valid/correct
+	 */
+#if (CONFIG_ARC_MMU_VER > 2)
+	write_aux_reg(ARC_AUX_IC_PTAG, addr);
+#endif
+	write_aux_reg(ARC_AUX_IC_IVIL, addr);
+#endif /* CONFIG_SYS_ICACHE_OFF */
+}
+#endif /* CONFIG_SYS_DCACHE_OFF */
+
+void flush_dcache_range(unsigned long start, unsigned long end)
+{
+#ifndef CONFIG_SYS_DCACHE_OFF
+	unsigned int addr;
+
+	start = start & (~(CONFIG_SYS_CACHELINE_SIZE - 1));
+	end = end & (~(CONFIG_SYS_CACHELINE_SIZE - 1));
+
+	for (addr = start; addr <= end; addr += CONFIG_SYS_CACHELINE_SIZE)
+		dcache_flush_line(addr);
+#endif /* CONFIG_SYS_DCACHE_OFF */
+}
+
+void invalidate_dcache_range(unsigned long start, unsigned long end)
+{
+#ifndef CONFIG_SYS_DCACHE_OFF
+	unsigned int addr;
+
+	start = start & (~(CONFIG_SYS_CACHELINE_SIZE - 1));
+	end = end & (~(CONFIG_SYS_CACHELINE_SIZE - 1));
+
+	for (addr = start; addr <= end; addr += CONFIG_SYS_CACHELINE_SIZE) {
+#if (CONFIG_ARC_MMU_VER > 2)
+		write_aux_reg(ARC_AUX_DC_PTAG, addr);
+#endif
+		write_aux_reg(ARC_AUX_DC_IVDL, addr);
+	}
+#endif /* CONFIG_SYS_DCACHE_OFF */
+}
+
+void invalidate_dcache_all(void)
+{
+#ifndef CONFIG_SYS_DCACHE_OFF
+	/* Write 1 to DC_IVDC register triggers invalidation of entire D$ */
+	write_aux_reg(ARC_AUX_DC_IVDC, 1);
+#endif /* CONFIG_SYS_DCACHE_OFF */
+}
+
+void flush_cache(unsigned long start, unsigned long size)
+{
+	flush_dcache_range(start, start + size);
+}

arch/arc/cpu/arc700/config.mk

@@ -0,0 +1,7 @@
+#
+# Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+PLATFORM_CPPFLAGS += -mA7

arch/arc/cpu/arc700/cpu.c

@@ -0,0 +1,47 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arcregs.h>
+#include <asm/cache.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+int arch_cpu_init(void)
+{
+#ifdef CONFIG_SYS_ICACHE_OFF
+	icache_disable();
+#else
+	icache_enable();
+	invalidate_icache_all();
+#endif
+
+	flush_dcache_all();
+#ifdef CONFIG_SYS_DCACHE_OFF
+	dcache_disable();
+#else
+	dcache_enable();
+#endif
+	timer_init();
+
+/* In simulation (ISS) "CHIPID" and "ARCNUM" are all "ff" */
+	if ((read_aux_reg(ARC_AUX_IDENTITY) & 0xffffff00) == 0xffffff00)
+		gd->arch.running_on_hw = 0;
+	else
+		gd->arch.running_on_hw = 1;
+
+	gd->cpu_clk = CONFIG_SYS_CLK_FREQ;
+	gd->ram_size = CONFIG_SYS_SDRAM_SIZE;
+
+	return 0;
+}
+
+int arch_early_init_r(void)
+{
+	gd->bd->bi_memstart = CONFIG_SYS_SDRAM_BASE;
+	gd->bd->bi_memsize = CONFIG_SYS_SDRAM_SIZE;
+	return 0;
+}

arch/arc/cpu/arc700/interrupts.c

@@ -0,0 +1,142 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/arcregs.h>
+#include <asm/ptrace.h>
+
+/* Bit values in STATUS32 */
+#define E1_MASK		(1 << 1)	/* Level 1 interrupts enable */
+#define E2_MASK		(1 << 2)	/* Level 2 interrupts enable */
+
+int interrupt_init(void)
+{
+	return 0;
+}
+
+/*
+ * returns true if interrupts had been enabled before we disabled them
+ */
+int disable_interrupts(void)
+{
+	int status = read_aux_reg(ARC_AUX_STATUS32);
+	int state = (status | E1_MASK | E2_MASK) ? 1 : 0;
+
+	status &= ~(E1_MASK | E2_MASK);
+	/* STATUS32 register is updated indirectly with "FLAG" instruction */
+	__asm__("flag %0" : : "r" (status));
+	return state;
+}
+
+void enable_interrupts(void)
+{
+	unsigned int status = read_aux_reg(ARC_AUX_STATUS32);
+
+	status |= E1_MASK | E2_MASK;
+	/* STATUS32 register is updated indirectly with "FLAG" instruction */
+	__asm__("flag %0" : : "r" (status));
+}
+
+static void print_reg_file(long *reg_rev, int start_num)
+{
+	unsigned int i;
+
+	/* Print 3 registers per line */
+	for (i = start_num; i < start_num + 25; i++) {
+		printf("r%02u: 0x%08lx\t", i, (unsigned long)*reg_rev);
+		if (((i + 1) % 3) == 0)
+			printf("\n");
+
+		/* Because pt_regs has registers reversed */
+		reg_rev--;
+	}
+
+	/* Add new-line if none was inserted in the end of loop above */
+	if (((i + 1) % 3) != 0)
+		printf("\n");
+}
+
+void show_regs(struct pt_regs *regs)
+{
+	printf("RET:\t0x%08lx\nBLINK:\t0x%08lx\nSTAT32:\t0x%08lx\n",
+	       regs->ret, regs->blink, regs->status32);
+	printf("GP: 0x%08lx\t r25: 0x%08lx\t\n", regs->r26, regs->r25);
+	printf("BTA: 0x%08lx\t SP: 0x%08lx\t FP: 0x%08lx\n", regs->bta,
+	       regs->sp, regs->fp);
+	printf("LPS: 0x%08lx\tLPE: 0x%08lx\tLPC: 0x%08lx\n", regs->lp_start,
+	       regs->lp_end, regs->lp_count);
+
+	print_reg_file(&(regs->r0), 0);
+}
+
+void bad_mode(struct pt_regs *regs)
+{
+	if (regs)
+		show_regs(regs);
+
+	panic("Resetting CPU ...\n");
+}
+
+void do_memory_error(unsigned long address, struct pt_regs *regs)
+{
+	printf("Memory error exception @ 0x%lx\n", address);
+	bad_mode(regs);
+}
+
+void do_instruction_error(unsigned long address, struct pt_regs *regs)
+{
+	printf("Instruction error exception @ 0x%lx\n", address);
+	bad_mode(regs);
+}
+
+void do_machine_check_fault(unsigned long address, struct pt_regs *regs)
+{
+	printf("Machine check exception @ 0x%lx\n", address);
+	bad_mode(regs);
+}
+
+void do_interrupt_handler(void)
+{
+	printf("Interrupt fired\n");
+	bad_mode(0);
+}
+
+void do_itlb_miss(struct pt_regs *regs)
+{
+	printf("I TLB miss exception\n");
+	bad_mode(regs);
+}
+
+void do_dtlb_miss(struct pt_regs *regs)
+{
+	printf("D TLB miss exception\n");
+	bad_mode(regs);
+}
+
+void do_tlb_prot_violation(unsigned long address, struct pt_regs *regs)
+{
+	printf("TLB protection violation or misaligned access @ 0x%lx\n",
+	       address);
+	bad_mode(regs);
+}
+
+void do_privilege_violation(struct pt_regs *regs)
+{
+	printf("Privilege violation exception\n");
+	bad_mode(regs);
+}
+
+void do_trap(struct pt_regs *regs)
+{
+	printf("Trap exception\n");
+	bad_mode(regs);
+}
+
+void do_extension(struct pt_regs *regs)
+{
+	printf("Extension instruction exception\n");
+	bad_mode(regs);
+}

arch/arc/cpu/arc700/reset.c

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <command.h>
+#include <common.h>
+
+int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *const argv[])
+{
+	printf("Put your restart handler here\n");
+
+#ifdef DEBUG
+	/* Stop debug session here */
+	__asm__("brk");
+#endif
+	return 0;
+}

arch/arc/cpu/arc700/start.S

@@ -0,0 +1,241 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm-offsets.h>
+#include <config.h>
+#include <asm/arcregs.h>
+
+/*
+ * Note on the LD/ST addressing modes with address register write-back
+ *
+ * LD.a same as LD.aw
+ *
+ * LD.a    reg1, [reg2, x]  => Pre Incr
+ *      Eff Addr for load = [reg2 + x]
+ *
+ * LD.ab   reg1, [reg2, x]  => Post Incr
+ *      Eff Addr for load = [reg2]
+ */
+
+.macro PUSH reg
+	st.a	\reg, [%sp, -4]
+.endm
+
+.macro PUSHAX aux
+	lr	%r9, [\aux]
+	PUSH	%r9
+.endm
+
+.macro  SAVE_R1_TO_R24
+	PUSH	%r1
+	PUSH	%r2
+	PUSH	%r3
+	PUSH	%r4
+	PUSH	%r5
+	PUSH	%r6
+	PUSH	%r7
+	PUSH	%r8
+	PUSH	%r9
+	PUSH	%r10
+	PUSH	%r11
+	PUSH	%r12
+	PUSH	%r13
+	PUSH	%r14
+	PUSH	%r15
+	PUSH	%r16
+	PUSH	%r17
+	PUSH	%r18
+	PUSH	%r19
+	PUSH	%r20
+	PUSH	%r21
+	PUSH	%r22
+	PUSH	%r23
+	PUSH	%r24
+.endm
+
+.macro SAVE_ALL_SYS
+
+	st	%r0, [%sp]
+	lr	%r0, [%ecr]
+	st	%r0, [%sp, 8]	/* ECR */
+	st	%sp, [%sp, 4]
+
+	SAVE_R1_TO_R24
+	PUSH	%r25
+	PUSH	%gp
+	PUSH	%fp
+	PUSH	%blink
+	PUSHAX	%eret
+	PUSHAX	%erstatus
+	PUSH	%lp_count
+	PUSHAX	%lp_end
+	PUSHAX	%lp_start
+	PUSHAX	%erbta
+.endm
+
+.align 4
+.globl _start
+_start:
+	/* Critical system events */
+	j	reset			/* 0 - 0x000 */
+	j	memory_error		/* 1 - 0x008 */
+	j	instruction_error	/* 2 - 0x010 */
+
+	/* Device interrupts */
+.rept	29
+	j	interrupt_handler	/* 3:31 - 0x018:0xF8 */
+.endr
+	/* Exceptions */
+	j	EV_MachineCheck		/* 0x100, Fatal Machine check  (0x20) */
+	j	EV_TLBMissI		/* 0x108, Intruction TLB miss  (0x21) */
+	j	EV_TLBMissD		/* 0x110, Data TLB miss        (0x22) */
+	j	EV_TLBProtV		/* 0x118, Protection Violation (0x23)
+							or Misaligned Access  */
+	j	EV_PrivilegeV		/* 0x120, Privilege Violation  (0x24) */
+	j	EV_Trap			/* 0x128, Trap exception       (0x25) */
+	j	EV_Extension		/* 0x130, Extn Intruction Excp (0x26) */
+
+memory_error:
+	SAVE_ALL_SYS
+	lr	%r0, [%efa]
+	mov	%r1, %sp
+	j	do_memory_error
+
+instruction_error:
+	SAVE_ALL_SYS
+	lr	%r0, [%efa]
+	mov	%r1, %sp
+	j	do_instruction_error
+
+interrupt_handler:
+	/* Todo - save and restore CPU context when interrupts will be in use */
+	bl	do_interrupt_handler
+	rtie
+
+EV_MachineCheck:
+	SAVE_ALL_SYS
+	lr	%r0, [%efa]
+	mov	%r1, %sp
+	j	do_machine_check_fault
+
+EV_TLBMissI:
+	SAVE_ALL_SYS
+	mov	%r0, %sp
+	j	do_itlb_miss
+
+EV_TLBMissD:
+	SAVE_ALL_SYS
+	mov	%r0, %sp
+	j	do_dtlb_miss
+
+EV_TLBProtV:
+	SAVE_ALL_SYS
+	lr	%r0, [%efa]
+	mov	%r1, %sp
+	j	do_tlb_prot_violation
+
+EV_PrivilegeV:
+	SAVE_ALL_SYS
+	mov	%r0, %sp
+	j	do_privilege_violation
+
+EV_Trap:
+	SAVE_ALL_SYS
+	mov	%r0, %sp
+	j	do_trap
+
+EV_Extension:
+	SAVE_ALL_SYS
+	mov	%r0, %sp
+	j	do_extension
+
+
+reset:
+	/* Setup interrupt vector base that matches "__text_start" */
+	sr	__text_start, [ARC_AUX_INTR_VEC_BASE]
+
+	/* Setup stack pointer */
+	mov	%sp, CONFIG_SYS_INIT_SP_ADDR
+	mov	%fp, %sp
+
+	/* Clear bss */
+	mov	%r0, __bss_start
+	mov	%r1, __bss_end
+
+clear_bss:
+	st.ab	0, [%r0, 4]
+	brlt	%r0, %r1, clear_bss
+
+	/* Zero the one and only argument of "board_init_f" */
+	mov_s	%r0, 0
+	j	board_init_f
+
+/*
+ * void relocate_code (addr_sp, gd, addr_moni)
+ *
+ * This "function" does not return, instead it continues in RAM
+ * after relocating the monitor code.
+ *
+ * r0 = start_addr_sp
+ * r1 = new__gd
+ * r2 = relocaddr
+ */
+.align 4
+.globl	relocate_code
+relocate_code:
+	/*
+	 * r0-r12 might be clobbered by C functions
+	 * so we use r13-r16 for storage here
+	 */
+	mov	%r13, %r0		/* save addr_sp */
+	mov	%r14, %r1		/* save addr of gd */
+	mov	%r15, %r2		/* save addr of destination */
+
+	mov	%r16, %r2		/* %r9 - relocation offset */
+	sub	%r16, %r16, __image_copy_start
+
+/* Set up the stack */
+stack_setup:
+	mov	%sp, %r13
+	mov	%fp, %sp
+
+/* Check if monitor is loaded right in place for relocation */
+	mov	%r0, __image_copy_start
+	cmp	%r0, %r15		/* skip relocation if code loaded */
+	bz	do_board_init_r		/* in target location already */
+
+/* Copy data (__image_copy_start - __image_copy_end) to new location */
+	mov	%r1, %r15
+	mov	%r2, __image_copy_end
+	sub	%r2, %r2, %r0		/* r3 <- amount of bytes to copy */
+	asr	%r2, %r2, 2		/* r3 <- amount of words to copy */
+	mov	%lp_count, %r2
+	lp	copy_end
+	ld.ab	%r2,[%r0,4]
+	st.ab	%r2,[%r1,4]
+copy_end:
+
+/* Fix relocations related issues */
+	bl	do_elf_reloc_fixups
+#ifndef CONFIG_SYS_ICACHE_OFF
+	bl	invalidate_icache_all
+#endif
+#ifndef CONFIG_SYS_DCACHE_OFF
+	bl	flush_dcache_all
+#endif
+
+/* Update position of intterupt vector table */
+	lr	%r0, [ARC_AUX_INTR_VEC_BASE]	/* Read current position */
+	add	%r0, %r0, %r16			/* Update address */
+	sr	%r0, [ARC_AUX_INTR_VEC_BASE]	/* Write new position */
+
+do_board_init_r:
+/* Prepare for exection of "board_init_r" in relocated monitor */
+	mov	%r2, board_init_r	/* old address of "board_init_r()" */
+	add	%r2, %r2, %r16		/* new address of "board_init_r()" */
+	mov	%r0, %r14		/* 1-st parameter: gd_t */
+	mov	%r1, %r15		/* 2-nd parameter: dest_addr */
+	j	[%r2]

arch/arc/cpu/arc700/timer.c

@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <asm/arcregs.h>
+
+#define NH_MODE	(1 << 1)	/* Disable timer if CPU is halted */
+
+int timer_init(void)
+{
+	write_aux_reg(ARC_AUX_TIMER0_CTRL, NH_MODE);
+	/* Set max value for counter/timer */
+	write_aux_reg(ARC_AUX_TIMER0_LIMIT, 0xffffffff);
+	/* Set initial count value and restart counter/timer */
+	write_aux_reg(ARC_AUX_TIMER0_CNT, 0);
+	return 0;
+}
+
+unsigned long timer_read_counter(void)
+{
+	return read_aux_reg(ARC_AUX_TIMER0_CNT);
+}

arch/arc/cpu/arc700/u-boot.lds

@@ -0,0 +1,72 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+OUTPUT_FORMAT("elf32-littlearc", "elf32-littlearc", "elf32-littlearc")
+OUTPUT_ARCH(arc)
+ENTRY(_start)
+SECTIONS
+{
+	. = ALIGN(4);
+	.text :	{
+		*(.__text_start)
+		*(.__image_copy_start)
+		CPUDIR/start.o (.text*)
+		*(.text*)
+	}
+
+	. = ALIGN(4);
+	.text_end :
+	{
+		*(.__text_end)
+	}
+
+	. = ALIGN(4);
+	.rodata : {
+		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.rodata*)))
+	}
+
+	. = ALIGN(4);
+	.data : {
+		*(.data*)
+	}
+
+	. = ALIGN(4);
+	.u_boot_list : {
+		KEEP(*(SORT(.u_boot_list*)));
+	}
+
+	. = ALIGN(4);
+	.rel_dyn_start : {
+		*(.__rel_dyn_start)
+	}
+
+	.rela.dyn : {
+		*(.rela.dyn)
+	}
+
+	.rel_dyn_end : {
+		*(.__rel_dyn_end)
+	}
+
+	. = ALIGN(4);
+	.bss_start : {
+		*(.__bss_start);
+	}
+
+	.bss : {
+		*(.bss*)
+	}
+
+	.bss_end : {
+		*(.__bss_end);
+	}
+
+	. = ALIGN(4);
+	.image_copy_end : {
+		*(.__image_copy_end)
+		*(.__init_end)
+	}
+}

arch/arc/include/asm/arcregs.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef _ASM_ARC_ARCREGS_H
+#define _ASM_ARC_ARCREGS_H
+
+/*
+ * ARC architecture has additional address space - auxiliary registers.
+ * These registers are mostly used for configuration purposes.
+ * These registers are not memory mapped and special commands are used for
+ * access: "lr"/"sr".
+ */
+
+#define ARC_AUX_IDENTITY	0x04
+#define ARC_AUX_STATUS32	0x0a
+
+/* Instruction cache related auxiliary registers */
+#define ARC_AUX_IC_IVIC		0x10
+#define ARC_AUX_IC_CTRL		0x11
+#define ARC_AUX_IC_IVIL		0x19
+#if (CONFIG_ARC_MMU_VER > 2)
+#define ARC_AUX_IC_PTAG		0x1E
+#endif
+
+/* Timer related auxiliary registers */
+#define ARC_AUX_TIMER0_CNT	0x21	/* Timer 0 count */
+#define ARC_AUX_TIMER0_CTRL	0x22	/* Timer 0 control */
+#define ARC_AUX_TIMER0_LIMIT	0x23	/* Timer 0 limit */
+
+#define ARC_AUX_INTR_VEC_BASE	0x25
+
+/* Data cache related auxiliary registers */
+#define ARC_AUX_DC_IVDC		0x47
+#define ARC_AUX_DC_CTRL		0x48
+
+#define ARC_AUX_DC_IVDL		0x4A
+#define ARC_AUX_DC_FLSH		0x4B
+#define ARC_AUX_DC_FLDL		0x4C
+#if (CONFIG_ARC_MMU_VER > 2)
+#define ARC_AUX_DC_PTAG		0x5C
+#endif
+
+#ifndef __ASSEMBLY__
+/* Accessors for auxiliary registers */
+#define read_aux_reg(reg)	__builtin_arc_lr(reg)
+
+/* gcc builtin sr needs reg param to be long immediate */
+#define write_aux_reg(reg_immed, val)		\
+		__builtin_arc_sr((unsigned int)val, reg_immed)
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_ARC_ARCREGS_H */

arch/arc/include/asm/bitops.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_BITOPS_H
+#define __ASM_ARC_BITOPS_H
+
+/*
+ * hweightN: returns the hamming weight (i.e. the number
+ * of bits set) of a N-bit word
+ */
+
+#define hweight32(x) generic_hweight32(x)
+#define hweight16(x) generic_hweight16(x)
+#define hweight8(x) generic_hweight8(x)
+
+#endif /* __ASM_ARC_BITOPS_H */

arch/arc/include/asm/byteorder.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_BYTEORDER_H
+#define __ASM_ARC_BYTEORDER_H
+
+#include <asm/types.h>
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+	#define __BYTEORDER_HAS_U64__
+	#define __SWAB_64_THRU_32__
+#endif
+
+#ifdef __LITTLE_ENDIAN__
+	#include <linux/byteorder/little_endian.h>
+#else
+	#include <linux/byteorder/big_endian.h>
+#endif	/* CONFIG_SYS_BIG_ENDIAN */
+
+#endif	/* ASM_ARC_BYTEORDER_H */

arch/arc/include/asm/cache.h

@@ -0,0 +1,23 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_CACHE_H
+#define __ASM_ARC_CACHE_H
+
+#include <config.h>
+
+/*
+ * The current upper bound for ARC L1 data cache line sizes is 128 bytes.
+ * We use that value for aligning DMA buffers unless the board config has
+ * specified an alternate cache line size.
+ */
+#ifdef CONFIG_SYS_CACHELINE_SIZE
+#define ARCH_DMA_MINALIGN	CONFIG_SYS_CACHELINE_SIZE
+#else
+#define ARCH_DMA_MINALIGN	128
+#endif
+
+#endif /* __ASM_ARC_CACHE_H */

arch/arc/include/asm/config.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_CONFIG_H_
+#define __ASM_ARC_CONFIG_H_
+
+#define CONFIG_LMB
+
+#endif /*__ASM_ARC_CONFIG_H_ */

arch/arc/include/asm/errno.h

@@ -0,0 +1 @@
+#include <asm-generic/errno.h>

arch/arc/include/asm/global_data.h

@@ -0,0 +1,19 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef	__ASM_ARC_GLOBAL_DATA_H
+#define __ASM_ARC_GLOBAL_DATA_H
+
+/* Architecture-specific global data */
+struct arch_global_data {
+	int running_on_hw;
+};
+
+#include <asm-generic/global_data.h>
+
+#define DECLARE_GLOBAL_DATA_PTR		register volatile gd_t *gd asm ("r25")
+
+#endif /* __ASM_ARC_GLOBAL_DATA_H */

arch/arc/include/asm/io.h

@@ -0,0 +1,218 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_IO_H
+#define __ASM_ARC_IO_H
+
+#include <linux/types.h>
+#include <asm/byteorder.h>
+
+static inline void sync(void)
+{
+	/* Not yet implemented */
+}
+
+static inline u8 __raw_readb(const volatile void __iomem *addr)
+{
+	u8 b;
+
+	__asm__ __volatile__("ldb%U1	%0, %1\n"
+			     : "=r" (b)
+			     : "m" (*(volatile u8 __force *)addr)
+			     : "memory");
+	return b;
+}
+
+static inline u16 __raw_readw(const volatile void __iomem *addr)
+{
+	u16 s;
+
+	__asm__ __volatile__("ldw%U1	%0, %1\n"
+			     : "=r" (s)
+			     : "m" (*(volatile u16 __force *)addr)
+			     : "memory");
+	return s;
+}
+
+static inline u32 __raw_readl(const volatile void __iomem *addr)
+{
+	u32 w;
+
+	__asm__ __volatile__("ld%U1	%0, %1\n"
+			     : "=r" (w)
+			     : "m" (*(volatile u32 __force *)addr)
+			     : "memory");
+	return w;
+}
+
+#define readb __raw_readb
+
+static inline u16 readw(const volatile void __iomem *addr)
+{
+	return __le16_to_cpu(__raw_readw(addr));
+}
+
+static inline u32 readl(const volatile void __iomem *addr)
+{
+	return __le32_to_cpu(__raw_readl(addr));
+}
+
+static inline void __raw_writeb(u8 b, volatile void __iomem *addr)
+{
+	__asm__ __volatile__("stb%U1	%0, %1\n"
+			     :
+			     : "r" (b), "m" (*(volatile u8 __force *)addr)
+			     : "memory");
+}
+
+static inline void __raw_writew(u16 s, volatile void __iomem *addr)
+{
+	__asm__ __volatile__("stw%U1	%0, %1\n"
+			     :
+			     : "r" (s), "m" (*(volatile u16 __force *)addr)
+			     : "memory");
+}
+
+static inline void __raw_writel(u32 w, volatile void __iomem *addr)
+{
+	__asm__ __volatile__("st%U1	%0, %1\n"
+			     :
+			     : "r" (w), "m" (*(volatile u32 __force *)addr)
+			     : "memory");
+}
+
+#define writeb __raw_writeb
+#define writew(b, addr) __raw_writew(__cpu_to_le16(b), addr)
+#define writel(b, addr) __raw_writel(__cpu_to_le32(b), addr)
+
+static inline int __raw_readsb(unsigned int addr, void *data, int bytelen)
+{
+	__asm__ __volatile__ ("1:ld.di	r8, [r0]\n"
+			      "sub.f	r2, r2, 1\n"
+			      "bnz.d	1b\n"
+			      "stb.ab	r8, [r1, 1]\n"
+			      :
+			      : "r" (addr), "r" (data), "r" (bytelen)
+			      : "r8");
+	return bytelen;
+}
+
+static inline int __raw_readsw(unsigned int addr, void *data, int wordlen)
+{
+	__asm__ __volatile__ ("1:ld.di	r8, [r0]\n"
+			      "sub.f	r2, r2, 1\n"
+			      "bnz.d	1b\n"
+			      "stw.ab	r8, [r1, 2]\n"
+			      :
+			      : "r" (addr), "r" (data), "r" (wordlen)
+			      : "r8");
+	return wordlen;
+}
+
+static inline int __raw_readsl(unsigned int addr, void *data, int longlen)
+{
+	__asm__ __volatile__ ("1:ld.di	r8, [r0]\n"
+			      "sub.f	r2, r2, 1\n"
+			      "bnz.d	1b\n"
+			      "st.ab	r8, [r1, 4]\n"
+			      :
+			      : "r" (addr), "r" (data), "r" (longlen)
+			      : "r8");
+	return longlen;
+}
+
+static inline int __raw_writesb(unsigned int addr, void *data, int bytelen)
+{
+	__asm__ __volatile__ ("1:ldb.ab	r8, [r1, 1]\n"
+			      "sub.f	r2, r2, 1\n"
+			      "bnz.d	1b\n"
+			      "st.di	r8, [r0, 0]\n"
+			      :
+			      : "r" (addr), "r" (data), "r" (bytelen)
+			      : "r8");
+	return bytelen;
+}
+
+static inline int __raw_writesw(unsigned int addr, void *data, int wordlen)
+{
+	__asm__ __volatile__ ("1:ldw.ab	r8, [r1, 2]\n"
+			      "sub.f	r2, r2, 1\n"
+			      "bnz.d	1b\n"
+			      "st.ab.di	r8, [r0, 0]\n"
+			      :
+			      : "r" (addr), "r" (data), "r" (wordlen)
+			      : "r8");
+	return wordlen;
+}
+
+static inline int __raw_writesl(unsigned int addr, void *data, int longlen)
+{
+	__asm__ __volatile__ ("1:ld.ab	r8, [r1, 4]\n"
+			      "sub.f	r2, r2, 1\n"
+			      "bnz.d	1b\n"
+			      "st.ab.di	r8, [r0, 0]\n"
+			      :
+			      : "r" (addr), "r" (data), "r" (longlen)
+			      : "r8");
+	return longlen;
+}
+
+#define out_arch(type, endian, a, v)	__raw_write##type(cpu_to_##endian(v), a)
+#define in_arch(type, endian, a)	endian##_to_cpu(__raw_read##type(a))
+
+#define out_le32(a, v)	out_arch(l, le32, a, v)
+#define out_le16(a, v)	out_arch(w, le16, a, v)
+
+#define in_le32(a)	in_arch(l, le32, a)
+#define in_le16(a)	in_arch(w, le16, a)
+
+#define out_be32(a, v)	out_arch(l, be32, a, v)
+#define out_be16(a, v)	out_arch(w, be16, a, v)
+
+#define in_be32(a)	in_arch(l, be32, a)
+#define in_be16(a)	in_arch(w, be16, a)
+
+#define out_8(a, v)	__raw_writeb(v, a)
+#define in_8(a)		__raw_readb(a)
+
+/*
+ * Clear and set bits in one shot. These macros can be used to clear and
+ * set multiple bits in a register using a single call. These macros can
+ * also be used to set a multiple-bit bit pattern using a mask, by
+ * specifying the mask in the 'clear' parameter and the new bit pattern
+ * in the 'set' parameter.
+ */
+
+#define clrbits(type, addr, clear) \
+	out_##type((addr), in_##type(addr) & ~(clear))
+
+#define setbits(type, addr, set) \
+	out_##type((addr), in_##type(addr) | (set))
+
+#define clrsetbits(type, addr, clear, set) \
+	out_##type((addr), (in_##type(addr) & ~(clear)) | (set))
+
+#define clrbits_be32(addr, clear) clrbits(be32, addr, clear)
+#define setbits_be32(addr, set) setbits(be32, addr, set)
+#define clrsetbits_be32(addr, clear, set) clrsetbits(be32, addr, clear, set)
+
+#define clrbits_le32(addr, clear) clrbits(le32, addr, clear)
+#define setbits_le32(addr, set) setbits(le32, addr, set)
+#define clrsetbits_le32(addr, clear, set) clrsetbits(le32, addr, clear, set)
+
+#define clrbits_be16(addr, clear) clrbits(be16, addr, clear)
+#define setbits_be16(addr, set) setbits(be16, addr, set)
+#define clrsetbits_be16(addr, clear, set) clrsetbits(be16, addr, clear, set)
+
+#define clrbits_le16(addr, clear) clrbits(le16, addr, clear)
+#define setbits_le16(addr, set) setbits(le16, addr, set)
+#define clrsetbits_le16(addr, clear, set) clrsetbits(le16, addr, clear, set)
+
+#define clrbits_8(addr, clear) clrbits(8, addr, clear)
+#define setbits_8(addr, set) setbits(8, addr, set)
+#define clrsetbits_8(addr, clear, set) clrsetbits(8, addr, clear, set)
+
+#endif	/* __ASM_ARC_IO_H */

arch/arc/include/asm/posix_types.h

@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_POSIX_TYPES_H
+#define __ASM_ARC_POSIX_TYPES_H
+
+typedef unsigned short		__kernel_dev_t;
+typedef unsigned long		__kernel_ino_t;
+typedef unsigned short		__kernel_mode_t;
+typedef unsigned short		__kernel_nlink_t;
+typedef long			__kernel_off_t;
+typedef int			__kernel_pid_t;
+typedef unsigned short		__kernel_ipc_pid_t;
+typedef unsigned short		__kernel_uid_t;
+typedef unsigned short		__kernel_gid_t;
+typedef unsigned int		__kernel_size_t;
+typedef int			__kernel_ssize_t;
+typedef int			__kernel_ptrdiff_t;
+typedef long			__kernel_time_t;
+typedef long			__kernel_suseconds_t;
+typedef long			__kernel_clock_t;
+typedef int			__kernel_daddr_t;
+typedef char			*__kernel_caddr_t;
+typedef unsigned short		__kernel_uid16_t;
+typedef unsigned short		__kernel_gid16_t;
+typedef unsigned int		__kernel_uid32_t;
+typedef unsigned int		__kernel_gid32_t;
+
+typedef unsigned short		__kernel_old_uid_t;
+typedef unsigned short		__kernel_old_gid_t;
+
+#ifdef __GNUC__
+typedef long long		__kernel_loff_t;
+#endif
+
+#endif	/* __ASM_ARC_POSIX_TYPES_H */

arch/arc/include/asm/ptrace.h

@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_PTRACE_H
+#define __ASM_ARC_PTRACE_H
+
+struct pt_regs {
+	long bta;
+	long lp_start;
+	long lp_end;
+	long lp_count;
+	long status32;
+	long ret;
+	long blink;
+	long fp;
+	long r26;	/* gp */
+	long r25;
+	long r24;
+	long r23;
+	long r22;
+	long r21;
+	long r20;
+	long r19;
+	long r18;
+	long r17;
+	long r16;
+	long r15;
+	long r14;
+	long r13;
+	long r12;
+	long r11;
+	long r10;
+	long r9;
+	long r8;
+	long r7;
+	long r6;
+	long r5;
+	long r4;
+	long r3;
+	long r2;
+	long r1;
+	long r0;
+	long sp;
+	long ecr;
+};
+
+#endif /* __ASM_ARC_PTRACE_H */

arch/arc/include/asm/sections.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_SECTIONS_H
+#define __ASM_ARC_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+extern ulong __text_end;
+
+#endif /* __ASM_ARC_SECTIONS_H */

arch/arc/include/asm/string.h

@@ -0,0 +1,27 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_STRING_H
+#define __ASM_ARC_STRING_H
+
+#define __HAVE_ARCH_MEMSET
+#define __HAVE_ARCH_MEMCPY
+#define __HAVE_ARCH_MEMCMP
+#define __HAVE_ARCH_STRCHR
+#define __HAVE_ARCH_STRCPY
+#define __HAVE_ARCH_STRCMP
+#define __HAVE_ARCH_STRLEN
+
+extern void *memset(void *ptr, int, __kernel_size_t);
+extern void *memcpy(void *, const void *, __kernel_size_t);
+extern void memzero(void *ptr, __kernel_size_t n);
+extern int memcmp(const void *, const void *, __kernel_size_t);
+extern char *strchr(const char *s, int c);
+extern char *strcpy(char *dest, const char *src);
+extern int strcmp(const char *cs, const char *ct);
+extern __kernel_size_t strlen(const char *);
+
+#endif /* __ASM_ARC_STRING_H */

arch/arc/include/asm/types.h

@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_TYPES_H
+#define __ASM_ARC_TYPES_H
+
+typedef unsigned short umode_t;
+
+/*
+ * __xx is ok: it doesn't pollute the POSIX namespace. Use these in the
+ * header files exported to user space
+ */
+
+typedef __signed__ char __s8;
+typedef unsigned char __u8;
+
+typedef __signed__ short __s16;
+typedef unsigned short __u16;
+
+typedef __signed__ int __s32;
+typedef unsigned int __u32;
+
+#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
+typedef __signed__ long long __s64;
+typedef unsigned long long __u64;
+#endif
+
+/*
+ * These aren't exported outside the kernel to avoid name space clashes
+ */
+typedef signed char s8;
+typedef unsigned char u8;
+
+typedef signed short s16;
+typedef unsigned short u16;
+
+typedef signed int s32;
+typedef unsigned int u32;
+
+typedef signed long long s64;
+typedef unsigned long long u64;
+
+#define BITS_PER_LONG 32
+
+/* Dma addresses are 32-bits wide. */
+
+typedef u32 dma_addr_t;
+
+typedef unsigned long phys_addr_t;
+typedef unsigned long phys_size_t;
+
+#endif /* __ASM_ARC_TYPES_H */

arch/arc/include/asm/u-boot-arc.h

@@ -0,0 +1,12 @@
+/*
+ * Copyright (C) 2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_U_BOOT_ARC_H__
+#define __ASM_ARC_U_BOOT_ARC_H__
+
+int arch_early_init_r(void);
+
+#endif	/* __ASM_ARC_U_BOOT_ARC_H__ */

arch/arc/include/asm/u-boot.h

@@ -0,0 +1,15 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef __ASM_ARC_U_BOOT_H__
+#define __ASM_ARC_U_BOOT_H__
+
+#include <asm-generic/u-boot.h>
+
+/* For image.h:image_check_target_arch() */
+#define IH_ARCH_DEFAULT IH_ARCH_ARC
+
+#endif	/* __ASM_ARC_U_BOOT_H__ */

arch/arc/include/asm/unaligned.h

@@ -0,0 +1 @@
+#include <asm-generic/unaligned.h>

arch/arc/lib/Makefile

@@ -0,0 +1,16 @@
+#
+# Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y += sections.o
+obj-y += relocate.o
+obj-y += strchr-700.o
+obj-y += strcmp.o
+obj-y += strcpy-700.o
+obj-y += strlen.o
+obj-y += memcmp.o
+obj-y += memcpy-700.o
+obj-y += memset.o
+obj-$(CONFIG_CMD_BOOTM) += bootm.o

arch/arc/lib/bootm.c

@@ -0,0 +1,106 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+static ulong get_sp(void)
+{
+	ulong ret;
+
+	asm("mov %0, sp" : "=r"(ret) : );
+	return ret;
+}
+
+void arch_lmb_reserve(struct lmb *lmb)
+{
+	ulong sp;
+
+	/*
+	 * Booting a (Linux) kernel image
+	 *
+	 * Allocate space for command line and board info - the
+	 * address should be as high as possible within the reach of
+	 * the kernel (see CONFIG_SYS_BOOTMAPSZ settings), but in unused
+	 * memory, which means far enough below the current stack
+	 * pointer.
+	 */
+	sp = get_sp();
+	debug("## Current stack ends at 0x%08lx ", sp);
+
+	/* adjust sp by 4K to be safe */
+	sp -= 4096;
+	lmb_reserve(lmb, sp, (CONFIG_SYS_SDRAM_BASE + gd->ram_size - sp));
+}
+
+static int cleanup_before_linux(void)
+{
+	disable_interrupts();
+	flush_dcache_all();
+	invalidate_icache_all();
+
+	return 0;
+}
+
+/* Subcommand: PREP */
+static void boot_prep_linux(bootm_headers_t *images)
+{
+	if (image_setup_linux(images))
+		hang();
+}
+
+/* Subcommand: GO */
+static void boot_jump_linux(bootm_headers_t *images, int flag)
+{
+	void (*kernel_entry)(int zero, int arch, uint params);
+	unsigned int r0, r2;
+	int fake = (flag & BOOTM_STATE_OS_FAKE_GO);
+
+	kernel_entry = (void (*)(int, int, uint))images->ep;
+
+	debug("## Transferring control to Linux (at address %08lx)...\n",
+	      (ulong) kernel_entry);
+	bootstage_mark(BOOTSTAGE_ID_RUN_OS);
+
+	printf("\nStarting kernel ...%s\n\n", fake ?
+	       "(fake run for tracing)" : "");
+	bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel");
+
+	cleanup_before_linux();
+
+	if (IMAGE_ENABLE_OF_LIBFDT && images->ft_len) {
+		r0 = 2;
+		r2 = (unsigned int)images->ft_addr;
+	} else {
+		r0 = 1;
+		r2 = (unsigned int)getenv("bootargs");
+	}
+
+	if (!fake)
+		kernel_entry(r0, 0, r2);
+}
+
+int do_bootm_linux(int flag, int argc, char *argv[], bootm_headers_t *images)
+{
+	/* No need for those on ARC */
+	if ((flag & BOOTM_STATE_OS_BD_T) || (flag & BOOTM_STATE_OS_CMDLINE))
+		return -1;
+
+	if (flag & BOOTM_STATE_OS_PREP) {
+		boot_prep_linux(images);
+		return 0;
+	}
+
+	if (flag & (BOOTM_STATE_OS_GO | BOOTM_STATE_OS_FAKE_GO)) {
+		boot_jump_linux(images, flag);
+		return 0;
+	}
+
+	boot_prep_linux(images);
+	boot_jump_linux(images, flag);
+	return 0;
+}

arch/arc/lib/memcmp.S

@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifdef __LITTLE_ENDIAN__
+#define WORD2 r2
+#define SHIFT r3
+#else /* __BIG_ENDIAN__ */
+#define WORD2 r3
+#define SHIFT r2
+#endif /* _ENDIAN__ */
+
+.global memcmp
+.align 4
+memcmp:
+	or	%r12, %r0, %r1
+	asl_s	%r12, %r12, 30
+	sub	%r3, %r2, 1
+	brls	%r2, %r12, .Lbytewise
+	ld	%r4, [%r0, 0]
+	ld	%r5, [%r1, 0]
+	lsr.f	%lp_count, %r3, 3
+	lpne	.Loop_end
+	ld_s	WORD2, [%r0, 4]
+	ld_s	%r12, [%r1, 4]
+	brne	%r4, %r5, .Leven
+	ld.a	%r4, [%r0, 8]
+	ld.a	%r5, [%r1, 8]
+	brne	WORD2, %r12, .Lodd
+.Loop_end:
+	asl_s	SHIFT, SHIFT, 3
+	bhs_s	.Last_cmp
+	brne	%r4, %r5, .Leven
+	ld	%r4, [%r0, 4]
+	ld	%r5, [%r1, 4]
+#ifdef __LITTLE_ENDIAN__
+	nop_s
+	/* one more load latency cycle */
+.Last_cmp:
+	xor	%r0, %r4, %r5
+	bset	%r0, %r0, SHIFT
+	sub_s	%r1, %r0, 1
+	bic_s	%r1, %r1, %r0
+	norm	%r1, %r1
+	b.d	.Leven_cmp
+	and	%r1, %r1, 24
+.Leven:
+	xor	%r0, %r4, %r5
+	sub_s	%r1, %r0, 1
+	bic_s	%r1, %r1, %r0
+	norm	%r1, %r1
+	/* slow track insn */
+	and	%r1, %r1, 24
+.Leven_cmp:
+	asl	%r2, %r4, %r1
+	asl	%r12, %r5, %r1
+	lsr_s	%r2, %r2, 1
+	lsr_s	%r12, %r12, 1
+	j_s.d	[%blink]
+	sub	%r0, %r2, %r12
+	.balign	4
+.Lodd:
+	xor	%r0, WORD2, %r12
+	sub_s	%r1, %r0, 1
+	bic_s	%r1, %r1, %r0
+	norm	%r1, %r1
+	/* slow track insn */
+	and	%r1, %r1, 24
+	asl_s	%r2, %r2, %r1
+	asl_s	%r12, %r12, %r1
+	lsr_s	%r2, %r2, 1
+	lsr_s	%r12, %r12, 1
+	j_s.d	[%blink]
+	sub	%r0, %r2, %r12
+#else /* __BIG_ENDIAN__ */
+.Last_cmp:
+	neg_s	SHIFT, SHIFT
+	lsr	%r4, %r4, SHIFT
+	lsr	%r5, %r5, SHIFT
+	/* slow track insn */
+.Leven:
+	sub.f	%r0, %r4, %r5
+	mov.ne	%r0, 1
+	j_s.d	[%blink]
+	bset.cs	%r0, %r0, 31
+.Lodd:
+	cmp_s	WORD2, %r12
+
+	mov_s	%r0, 1
+	j_s.d	[%blink]
+	bset.cs	%r0, %r0, 31
+#endif /* _ENDIAN__ */
+	.balign	4
+.Lbytewise:
+	breq	%r2, 0, .Lnil
+	ldb	%r4, [%r0, 0]
+	ldb	%r5, [%r1, 0]
+	lsr.f	%lp_count, %r3
+	lpne	.Lbyte_end
+	ldb_s	%r3, [%r0, 1]
+	ldb	%r12, [%r1, 1]
+	brne	%r4, %r5, .Lbyte_even
+	ldb.a	%r4, [%r0, 2]
+	ldb.a	%r5, [%r1, 2]
+	brne	%r3, %r12, .Lbyte_odd
+.Lbyte_end:
+	bcc	.Lbyte_even
+	brne	%r4, %r5, .Lbyte_even
+	ldb_s	%r3, [%r0, 1]
+	ldb_s	%r12, [%r1, 1]
+.Lbyte_odd:
+	j_s.d	[%blink]
+	sub	%r0, %r3, %r12
+.Lbyte_even:
+	j_s.d	[%blink]
+	sub	%r0, %r4, %r5
+.Lnil:
+	j_s.d	[%blink]
+	mov	%r0, 0

arch/arc/lib/memcpy-700.S

@@ -0,0 +1,63 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+.global memcpy
+.align 4
+memcpy:
+	or	%r3, %r0, %r1
+	asl_s	%r3, %r3, 30
+	mov_s	%r5, %r0
+	brls.d	%r2, %r3, .Lcopy_bytewise
+	sub.f	%r3, %r2, 1
+	ld_s	%r12, [%r1, 0]
+	asr.f	%lp_count, %r3, 3
+	bbit0.d	%r3, 2, .Lnox4
+	bmsk_s	%r2, %r2, 1
+	st.ab	%r12, [%r5, 4]
+	ld.a	%r12, [%r1, 4]
+.Lnox4:
+	lppnz	.Lendloop
+	ld_s	%r3, [%r1, 4]
+	st.ab	%r12, [%r5, 4]
+	ld.a	%r12, [%r1, 8]
+	st.ab	%r3, [%r5, 4]
+.Lendloop:
+	breq	%r2, 0, .Last_store
+	ld	%r3, [%r5, 0]
+#ifdef __LITTLE_ENDIAN__
+	add3	%r2, -1, %r2
+	/* uses long immediate */
+	xor_s	%r12, %r12, %r3
+	bmsk	%r12, %r12, %r2
+	xor_s	%r12, %r12, %r3
+#else /* __BIG_ENDIAN__ */
+	sub3	%r2, 31, %r2
+	/* uses long immediate */
+	xor_s	%r3, %r3, %r12
+	bmsk	%r3, %r3, %r2
+	xor_s	%r12, %r12, %r3
+#endif /* _ENDIAN__ */
+.Last_store:
+	j_s.d	[%blink]
+	st	%r12, [%r5, 0]
+
+	.balign	4
+.Lcopy_bytewise:
+	jcs	[%blink]
+	ldb_s	%r12, [%r1, 0]
+	lsr.f	%lp_count, %r3
+	bhs_s	.Lnox1
+	stb.ab	%r12, [%r5, 1]
+	ldb.a	%r12, [%r1, 1]
+.Lnox1:
+	lppnz	.Lendbloop
+	ldb_s	%r3, [%r1, 1]
+	stb.ab	%r12, [%r5, 1]
+	ldb.a	%r12, [%r1, 2]
+	stb.ab	%r3, [%r5, 1]
+.Lendbloop:
+	j_s.d	[%blink]
+	stb	%r12, [%r5, 0]

arch/arc/lib/memset.S

@@ -0,0 +1,62 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#define SMALL	7 /* Must be at least 6 to deal with alignment/loop issues.  */
+
+.global memset
+.align 4
+memset:
+	mov_s	%r4, %r0
+	or	%r12, %r0, %r2
+	bmsk.f	%r12, %r12, 1
+	extb_s	%r1, %r1
+	asl	%r3, %r1, 8
+	beq.d	.Laligned
+	or_s	%r1, %r1, %r3
+	brls	%r2, SMALL, .Ltiny
+	add	%r3, %r2, %r0
+	stb	%r1, [%r3, -1]
+	bclr_s	%r3, %r3, 0
+	stw	%r1, [%r3, -2]
+	bmsk.f	%r12, %r0, 1
+	add_s	%r2, %r2, %r12
+	sub.ne	%r2, %r2, 4
+	stb.ab	%r1, [%r4, 1]
+	and	%r4, %r4, -2
+	stw.ab	%r1, [%r4, 2]
+	and	%r4, %r4, -4
+
+	.balign	4
+.Laligned:
+	asl	%r3, %r1, 16
+	lsr.f	%lp_count, %r2, 2
+	or_s	%r1, %r1, %r3
+	lpne	.Loop_end
+	st.ab	%r1, [%r4, 4]
+.Loop_end:
+	j_s	[%blink]
+
+	.balign	4
+.Ltiny:
+	mov.f	%lp_count, %r2
+	lpne	.Ltiny_end
+	stb.ab	%r1, [%r4, 1]
+.Ltiny_end:
+	j_s	[%blink]
+
+/*
+ * memzero: @r0 = mem, @r1 = size_t
+ * memset:  @r0 = mem, @r1 = char, @r2 = size_t
+ */
+
+.global memzero
+.align 4
+memzero:
+	/* adjust bzero args to memset args */
+	mov	%r2, %r1
+	mov	%r1, 0
+	/* tail call so need to tinker with blink */
+	b	memset

arch/arc/lib/relocate.c

@@ -0,0 +1,76 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#include <common.h>
+#include <elf.h>
+#include <asm/sections.h>
+
+DECLARE_GLOBAL_DATA_PTR;
+
+/*
+ * Base functionality is taken from x86 version with added ARC-specifics
+ */
+int do_elf_reloc_fixups(void)
+{
+	Elf32_Rela *re_src = (Elf32_Rela *)(&__rel_dyn_start);
+	Elf32_Rela *re_end = (Elf32_Rela *)(&__rel_dyn_end);
+
+	Elf32_Addr *offset_ptr_rom, *last_offset = NULL;
+	Elf32_Addr *offset_ptr_ram;
+
+	do {
+		/* Get the location from the relocation entry */
+		offset_ptr_rom = (Elf32_Addr *)re_src->r_offset;
+
+		/* Check that the location of the relocation is in .text */
+		if (offset_ptr_rom >= (Elf32_Addr *)CONFIG_SYS_TEXT_BASE &&
+		    offset_ptr_rom > last_offset) {
+			unsigned int val;
+			/* Switch to the in-RAM version */
+			offset_ptr_ram = (Elf32_Addr *)((ulong)offset_ptr_rom +
+							gd->reloc_off);
+
+			/*
+			 * Use "memcpy" because target location might be
+			 * 16-bit aligned on ARC so we may need to read
+			 * byte-by-byte. On attempt to read entire word by
+			 * CPU throws an exception
+			 */
+			memcpy(&val, offset_ptr_ram, sizeof(int));
+
+#ifdef __LITTLE_ENDIAN__
+			/* If location in ".text" section swap value */
+			if ((unsigned int)offset_ptr_rom <
+			    (unsigned int)&__text_end)
+				val = (val << 16) | (val >> 16);
+#endif
+
+			/* Check that the target points into .text */
+			if (val >= CONFIG_SYS_TEXT_BASE && val <=
+			    (unsigned int)&__bss_end) {
+				val += gd->reloc_off;
+#ifdef __LITTLE_ENDIAN__
+				/* If location in ".text" section swap value */
+				if ((unsigned int)offset_ptr_rom <
+				    (unsigned int)&__text_end)
+					val = (val << 16) | (val >> 16);
+#endif
+				memcpy(offset_ptr_ram, &val, sizeof(int));
+			} else {
+				debug("   %p: rom reloc %x, ram %p, value %x, limit %x\n",
+				      re_src, re_src->r_offset, offset_ptr_ram,
+				      val, (unsigned int)&__bss_end);
+			}
+		} else {
+			debug("   %p: rom reloc %x, last %p\n", re_src,
+			      re_src->r_offset, last_offset);
+		}
+		last_offset = offset_ptr_rom;
+
+	} while (++re_src < re_end);
+
+	return 0;
+}

arch/arc/lib/sections.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2013-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * For some reason linker sets linker-generated symbols to zero in PIE mode.
+ * A work-around is substitution of linker-generated symbols with
+ * compiler-generated symbols which are properly handled by linker in PAE mode.
+ */
+
+char __bss_start[0] __attribute__((section(".__bss_start")));
+char __bss_end[0] __attribute__((section(".__bss_end")));
+char __image_copy_start[0] __attribute__((section(".__image_copy_start")));
+char __image_copy_end[0] __attribute__((section(".__image_copy_end")));
+char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start")));
+char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end")));
+char __text_start[0] __attribute__((section(".__text_start")));
+char __text_end[0] __attribute__((section(".__text_end")));
+char __init_end[0] __attribute__((section(".__init_end")));

arch/arc/lib/strchr-700.S

@@ -0,0 +1,141 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * ARC700 has a relatively long pipeline and branch prediction, so we want
+ * to avoid branches that are hard to predict.  On the other hand, the
+ * presence of the norm instruction makes it easier to operate on whole
+ * words branch-free.
+ */
+
+.global strchr
+.align 4
+strchr:
+	extb_s	%r1, %r1
+	asl	%r5, %r1, 8
+	bmsk	%r2, %r0, 1
+	or	%r5, %r5, %r1
+	mov_s	%r3, 0x01010101
+	breq.d	%r2, %r0, .Laligned
+	asl	%r4, %r5, 16
+	sub_s	%r0, %r0, %r2
+	asl	%r7, %r2, 3
+	ld_s	%r2, [%r0]
+#ifdef __LITTLE_ENDIAN__
+	asl	%r7, %r3, %r7
+#else /* __BIG_ENDIAN__ */
+	lsr	%r7, %r3, %r7
+#endif /* _ENDIAN__ */
+	or	%r5, %r5, %r4
+	ror	%r4, %r3
+	sub	%r12, %r2, %r7
+	bic_s	%r12, %r12, %r2
+	and	%r12, %r12, %r4
+	brne.d	%r12, 0, .Lfound0_ua
+	xor	%r6, %r2, %r5
+	ld.a	%r2, [%r0, 4]
+	sub	%r12, %r6, %r7
+	bic	%r12, %r12, %r6
+#ifdef __LITTLE_ENDIAN__
+	and	%r7, %r12, %r4
+	/* For speed, we want this branch to be unaligned. */
+	breq	%r7, 0, .Loop
+	/* Likewise this one */
+	b	.Lfound_char
+#else /* __BIG_ENDIAN__ */
+	and	%r12, %r12, %r4
+	/* For speed, we want this branch to be unaligned. */
+	breq	%r12, 0, .Loop
+	lsr_s	%r12, %r12, 7
+	bic 	%r2, %r7, %r6
+	b.d	.Lfound_char_b
+	and_s	%r2, %r2, %r12
+#endif /* _ENDIAN__ */
+	/* We require this code address to be unaligned for speed...  */
+.Laligned:
+	ld_s	%r2, [%r0]
+	or	%r5, %r5, %r4
+	ror	%r4, %r3
+	/* ... so that this code address is aligned, for itself and ...  */
+.Loop:
+	sub	%r12, %r2, %r3
+	bic_s	%r12, %r12, %r2
+	and	%r12, %r12, %r4
+	brne.d	%r12, 0, .Lfound0
+	xor	%r6, %r2, %r5
+	ld.a	%r2, [%r0, 4]
+	sub	%r12, %r6, %r3
+	bic	%r12, %r12, %r6
+	and	%r7, %r12, %r4
+	breq	%r7, 0, .Loop
+	/*
+	 *... so that this branch is unaligned.
+	 * Found searched-for character.
+	 * r0 has already advanced to next word.
+	 */
+#ifdef __LITTLE_ENDIAN__
+	/*
+	 * We only need the information about the first matching byte
+	 * (i.e. the least significant matching byte) to be exact,
+	 * hence there is no problem with carry effects.
+	 */
+.Lfound_char:
+	sub	%r3, %r7, 1
+	bic	%r3, %r3, %r7
+	norm	%r2, %r3
+	sub_s	%r0, %r0, 1
+	asr_s	%r2, %r2, 3
+	j.d	[%blink]
+	sub_s	%r0, %r0, %r2
+
+	.balign	4
+.Lfound0_ua:
+	mov	%r3, %r7
+.Lfound0:
+	sub	%r3, %r6, %r3
+	bic	%r3, %r3, %r6
+	and	%r2, %r3, %r4
+	or_s	%r12, %r12, %r2
+	sub_s	%r3, %r12, 1
+	bic_s	%r3, %r3, %r12
+	norm	%r3, %r3
+	add_s	%r0, %r0, 3
+	asr_s	%r12, %r3, 3
+	asl.f	0, %r2, %r3
+	sub_s	%r0, %r0, %r12
+	j_s.d	[%blink]
+	mov.pl	%r0, 0
+#else /* __BIG_ENDIAN__ */
+.Lfound_char:
+	lsr	%r7, %r7, 7
+
+	bic	%r2, %r7, %r6
+.Lfound_char_b:
+	norm	%r2, %r2
+	sub_s	%r0, %r0, 4
+	asr_s	%r2, %r2, 3
+	j.d	[%blink]
+	add_s	%r0, %r0, %r2
+
+.Lfound0_ua:
+	mov_s	%r3, %r7
+.Lfound0:
+	asl_s	%r2, %r2, 7
+	or	%r7, %r6, %r4
+	bic_s	%r12, %r12, %r2
+	sub	%r2, %r7, %r3
+	or	%r2, %r2, %r6
+	bic	%r12, %r2, %r12
+	bic.f	%r3, %r4, %r12
+	norm	%r3, %r3
+
+	add.pl	%r3, %r3, 1
+	asr_s	%r12, %r3, 3
+	asl.f	0, %r2, %r3
+	add_s	%r0, %r0, %r12
+	j_s.d	[%blink]
+	mov.mi	%r0, 0
+#endif /* _ENDIAN__ */

arch/arc/lib/strcmp.S

@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * This is optimized primarily for the ARC700.
+ * It would be possible to speed up the loops by one cycle / word
+ * respective one cycle / byte by forcing double source 1 alignment, unrolling
+ * by a factor of two, and speculatively loading the second word / byte of
+ * source 1; however, that would increase the overhead for loop setup / finish,
+ * and strcmp might often terminate early.
+ */
+
+.global strcmp
+.align 4
+strcmp:
+	or	%r2, %r0, %r1
+	bmsk_s	%r2, %r2, 1
+	brne	%r2, 0, .Lcharloop
+	mov_s	%r12, 0x01010101
+	ror	%r5, %r12
+.Lwordloop:
+	ld.ab	%r2, [%r0, 4]
+	ld.ab	%r3, [%r1, 4]
+	nop_s
+	sub	%r4, %r2, %r12
+	bic	%r4, %r4, %r2
+	and	%r4, %r4, %r5
+	brne	%r4, 0, .Lfound0
+	breq	%r2 ,%r3, .Lwordloop
+#ifdef	__LITTLE_ENDIAN__
+	xor	%r0, %r2, %r3	/* mask for difference */
+	sub_s	%r1, %r0, 1
+	bic_s	%r0, %r0, %r1	/* mask for least significant difference bit */
+	sub	%r1, %r5, %r0
+	xor	%r0, %r5, %r1	/* mask for least significant difference byte */
+	and_s	%r2, %r2, %r0
+	and_s	%r3, %r3, %r0
+#endif /* _ENDIAN__ */
+	cmp_s	%r2, %r3
+	mov_s	%r0, 1
+	j_s.d	[%blink]
+	bset.lo	%r0, %r0, 31
+
+	.balign	4
+#ifdef __LITTLE_ENDIAN__
+.Lfound0:
+	xor	%r0, %r2, %r3	/* mask for difference */
+	or	%r0, %r0, %r4	/* or in zero indicator */
+	sub_s	%r1, %r0, 1
+	bic_s	%r0, %r0, %r1	/* mask for least significant difference bit */
+	sub	%r1, %r5, %r0
+	xor	%r0, %r5, %r1	/* mask for least significant difference byte */
+	and_s	%r2, %r2, %r0
+	and_s	%r3, %r3, %r0
+	sub.f	%r0, %r2, %r3
+	mov.hi	%r0, 1
+	j_s.d	[%blink]
+	bset.lo	%r0, %r0, 31
+#else /* __BIG_ENDIAN__ */
+	/*
+	 * The zero-detection above can mis-detect 0x01 bytes as zeroes
+	 * because of carry-propagateion from a lower significant zero byte.
+	 * We can compensate for this by checking that bit0 is zero.
+	 * This compensation is not necessary in the step where we
+	 * get a low estimate for r2, because in any affected bytes
+	 * we already have 0x00 or 0x01, which will remain unchanged
+	 * when bit 7 is cleared.
+	 */
+	.balign	4
+.Lfound0:
+	lsr	%r0, %r4, 8
+	lsr_s	%r1, %r2
+	bic_s	%r2, %r2, %r0	/* get low estimate for r2 and get ... */
+	bic_s	%r0, %r0, %r1	/* <this is the adjusted mask for zeros> */
+	or_s	%r3, %r3, %r0	/* ... high estimate r3 so that r2 > r3 will */
+	cmp_s	%r3, %r2	/* ... be independent of trailing garbage */
+	or_s	%r2, %r2, %r0	/* likewise for r3 > r2 */
+	bic_s	%r3, %r3, %r0
+	rlc	%r0, 0		/* r0 := r2 > r3 ? 1 : 0 */
+	cmp_s	%r2, %r3
+	j_s.d	[%blink]
+	bset.lo	%r0, %r0, 31
+#endif /* _ENDIAN__ */
+
+	.balign	4
+.Lcharloop:
+	ldb.ab	%r2,[%r0,1]
+	ldb.ab	%r3,[%r1,1]
+	nop_s
+	breq	%r2, 0, .Lcmpend
+	breq	%r2, %r3, .Lcharloop
+.Lcmpend:
+	j_s.d	[%blink]
+	sub	%r0, %r2, %r3

arch/arc/lib/strcpy-700.S

@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+/*
+ * If dst and src are 4 byte aligned, copy 8 bytes at a time.
+ * If the src is 4, but not 8 byte aligned, we first read 4 bytes to get
+ * it 8 byte aligned.  Thus, we can do a little read-ahead, without
+ * dereferencing a cache line that we should not touch.
+ * Note that short and long instructions have been scheduled to avoid
+ * branch stalls.
+ * The beq_s to r3z could be made unaligned & long to avoid a stall
+ * there, but it is not likely to be taken often, and it would also be likely
+ * to cost an unaligned mispredict at the next call.
+ */
+
+.global strcpy
+.align 4
+strcpy:
+	or	%r2, %r0, %r1
+	bmsk_s	%r2, %r2, 1
+	brne.d	%r2, 0, charloop
+	mov_s	%r10, %r0
+	ld_s	%r3, [%r1, 0]
+	mov	%r8, 0x01010101
+	bbit0.d	%r1, 2, loop_start
+	ror	%r12, %r8
+	sub	%r2, %r3, %r8
+	bic_s	%r2, %r2, %r3
+	tst_s	%r2,%r12
+	bne	r3z
+	mov_s	%r4,%r3
+	.balign 4
+loop:
+	ld.a	%r3, [%r1, 4]
+	st.ab	%r4, [%r10, 4]
+loop_start:
+	ld.a	%r4, [%r1, 4]
+	sub	%r2, %r3, %r8
+	bic_s	%r2, %r2, %r3
+	tst_s	%r2, %r12
+	bne_s	r3z
+	st.ab	%r3, [%r10, 4]
+	sub	%r2, %r4, %r8
+	bic	%r2, %r2, %r4
+	tst	%r2, %r12
+	beq	loop
+	mov_s	%r3, %r4
+#ifdef __LITTLE_ENDIAN__
+r3z:	bmsk.f	%r1, %r3, 7
+	lsr_s	%r3, %r3, 8
+#else /* __BIG_ENDIAN__ */
+r3z:	lsr.f	%r1, %r3, 24
+	asl_s	%r3, %r3, 8
+#endif /* _ENDIAN__ */
+	bne.d	r3z
+	stb.ab	%r1, [%r10, 1]
+	j_s	[%blink]
+
+	.balign	4
+charloop:
+	ldb.ab	%r3, [%r1, 1]
+	brne.d	%r3, 0, charloop
+	stb.ab	%r3, [%r10, 1]
+	j	[%blink]

arch/arc/lib/strlen.S

@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2004, 2007-2010, 2011-2014 Synopsys, Inc. All rights reserved.
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+.global strlen
+.align 4
+strlen:
+	or	%r3, %r0, 7
+	ld	%r2, [%r3, -7]
+	ld.a	%r6, [%r3, -3]
+	mov	%r4, 0x01010101
+	/* uses long immediate */
+#ifdef __LITTLE_ENDIAN__
+	asl_s	%r1, %r0, 3
+	btst_s	%r0, 2
+	asl	%r7, %r4, %r1
+	ror	%r5, %r4
+	sub	%r1, %r2, %r7
+	bic_s	%r1, %r1, %r2
+	mov.eq	%r7, %r4
+	sub	%r12, %r6, %r7
+	bic	%r12, %r12, %r6
+	or.eq	%r12, %r12, %r1
+	and	%r12, %r12, %r5
+	brne	%r12, 0, .Learly_end
+#else /* __BIG_ENDIAN__ */
+	ror	%r5, %r4
+	btst_s	%r0, 2
+	mov_s	%r1, 31
+	sub3	%r7, %r1, %r0
+	sub	%r1, %r2, %r4
+	bic_s	%r1, %r1, %r2
+	bmsk	%r1, %r1, %r7
+	sub	%r12, %r6, %r4
+	bic	%r12, %r12, %r6
+	bmsk.ne	%r12, %r12, %r7
+	or.eq	%r12, %r12, %r1
+	and	%r12, %r12, %r5
+	brne	%r12, 0, .Learly_end
+#endif /* _ENDIAN__ */
+
+.Loop:
+	ld_s	%r2, [%r3, 4]
+	ld.a	%r6, [%r3, 8]
+	/* stall for load result */
+	sub	%r1, %r2, %r4
+	bic_s	%r1, %r1, %r2
+	sub	%r12, %r6, %r4
+	bic	%r12, %r12, %r6
+	or	%r12, %r12, %r1
+	and	%r12, %r12, %r5
+	breq	%r12, 0, .Loop
+.Lend:
+	and.f	%r1, %r1, %r5
+	sub.ne	%r3, %r3, 4
+	mov.eq	%r1, %r12
+#ifdef __LITTLE_ENDIAN__
+	sub_s	%r2, %r1, 1
+	bic_s	%r2, %r2, %r1
+	norm	%r1, %r2
+	sub_s	%r0, %r0, 3
+	lsr_s	%r1, %r1, 3
+	sub	%r0, %r3, %r0
+	j_s.d	[%blink]
+	sub	%r0, %r0, %r1
+#else /* __BIG_ENDIAN__ */
+	lsr_s	%r1, %r1, 7
+	mov.eq	%r2, %r6
+	bic_s	%r1, %r1, %r2
+	norm	%r1, %r1
+	sub	%r0, %r3, %r0
+	lsr_s	%r1, %r1, 3
+	j_s.d	[%blink]
+	add	%r0, %r0, %r1
+#endif /* _ENDIAN */
+.Learly_end:
+	b.d	.Lend
+	sub_s.ne %r1, %r1, %r1

arch/arm/config.mk

@@ -5,7 +5,9 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-CROSS_COMPILE ?= arm-linux-
+ifeq ($(CROSS_COMPILE),)
+CROSS_COMPILE := arm-linux-
+endif
 
 ifndef CONFIG_STANDALONE_LOAD_ADDR
 ifneq ($(CONFIG_OMAP_COMMON),)
@@ -18,7 +20,8 @@ endif
 LDFLAGS_FINAL += --gc-sections
 PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections \
 		     -fno-common -ffixed-r9
-PLATFORM_RELFLAGS += $(call cc-option, -msoft-float)
+PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \
+      $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
 
 # Support generic board on ARM
 __HAVE_ARCH_GENERIC_BOARD := y
@@ -38,7 +41,17 @@ endif
 
 # Only test once
 ifneq ($(CONFIG_SPL_BUILD),y)
-ALL-$(CONFIG_SYS_THUMB_BUILD)	+= checkthumb
+ifeq ($(CONFIG_SYS_THUMB_BUILD),y)
+archprepare: checkthumb
+
+checkthumb:
+	@if test "$(call cc-version)" -lt "0404"; then \
+		echo -n '*** Your GCC does not produce working '; \
+		echo 'binaries in THUMB mode.'; \
+		echo '*** Your board is configured for THUMB mode.'; \
+		false; \
+	fi
+endif
 endif
 
 # Try if EABI is supported, else fall back to old API,
@@ -66,13 +79,8 @@ ifneq (,$(findstring -mabi=aapcs-linux,$(PLATFORM_CPPFLAGS)))
 # times. Also, the prefix needs to be different based on whether
 # CONFIG_SPL_BUILD is defined or not. 'filter-out' the existing entry
 # before adding the correct one.
-ifdef CONFIG_SPL_BUILD
-PLATFORM_LIBS := $(SPLTREE)/arch/arm/lib/eabi_compat.o \
-	$(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
-else
-PLATFORM_LIBS := $(OBJTREE)/arch/arm/lib/eabi_compat.o \
-	$(filter-out %/arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
-endif
+PLATFORM_LIBS := arch/arm/lib/eabi_compat.o \
+	$(filter-out arch/arm/lib/eabi_compat.o, $(PLATFORM_LIBS))
 endif
 
 # needed for relocation
@@ -107,7 +115,17 @@ endif
 
 # limit ourselves to the sections we want in the .bin.
 ifdef CONFIG_ARM64
-OBJCFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn
+OBJCOPYFLAGS += -j .text -j .rodata -j .data -j .u_boot_list -j .rela.dyn
 else
-OBJCFLAGS += -j .text -j .rodata -j .hash -j .data -j .got.plt -j .u_boot_list -j .rel.dyn
+OBJCOPYFLAGS += -j .text -j .rodata -j .hash -j .data -j .got.plt -j .u_boot_list -j .rel.dyn
+endif
+
+ifneq ($(CONFIG_IMX_CONFIG),)
+ifdef CONFIG_SPL
+ifndef CONFIG_SPL_BUILD
+ALL-y += SPL
+endif
+else
+ALL-y += u-boot.imx
+endif
 endif

arch/arm/cpu/arm1136/config.mk

@@ -7,20 +7,3 @@
 
 # Make ARMv5 to allow more compilers to work, even though its v6.
 PLATFORM_CPPFLAGS += -march=armv5
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)
-
-ifneq ($(CONFIG_IMX_CONFIG),)
-ifdef CONFIG_SPL
-ifdef CONFIG_SPL_BUILD
-ALL-y	+= $(OBJTREE)/SPL
-endif
-else
-ALL-y	+= $(obj)u-boot.imx
-endif
-endif

arch/arm/cpu/arm1136/start.S

@@ -70,32 +70,6 @@ _end_vect:
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START
@@ -295,7 +269,6 @@ cpu_init_crit:
 #ifdef CONFIG_SPL_BUILD
 	.align	5
 do_hang:
-	ldr	sp, _TEXT_BASE			/* use 32 words about stack */
 	bl	hang				/* hang and never return */
 #else	/* !CONFIG_SPL_BUILD */
 	.align	5

arch/arm/cpu/arm1136/u-boot-spl.lds

@@ -33,7 +33,11 @@ SECTIONS
 	.data : { *(SORT_BY_ALIGNMENT(.data*)) } >.sram
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	}
 
 	.bss :
 	{

arch/arm/cpu/arm1176/bcm2835/config.mk

@@ -1,19 +0,0 @@
-#
-# (C) Copyright 2012 Stephen Warren
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# version 2 as published by the Free Software Foundation.
-#
-# This program is distributed in the hope that it will be useful, but
-# WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-
-# Don't attempt to override the target CPU/ABI options;
-# the Raspberry Pi toolchain does the right thing by default.
-PLATFORM_RELFLAGS := $(filter-out -msoft-float,$(PLATFORM_RELFLAGS))
-PLATFORM_CPPFLAGS := $(filter-out -march=armv5t,$(PLATFORM_CPPFLAGS))

arch/arm/cpu/arm1176/bcm2835/timer.c

@@ -18,11 +18,6 @@
 #include <asm/io.h>
 #include <asm/arch/timer.h>
 
-int timer_init(void)
-{
-	return 0;
-}
-
 ulong get_timer_us(ulong base)
 {
 	struct bcm2835_timer_regs *regs =

arch/arm/cpu/arm1176/config.mk

@@ -7,11 +7,3 @@
 
 # Make ARMv5 to allow more compilers to work, even though its v6.
 PLATFORM_CPPFLAGS += -march=armv5t
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\
-			$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)

arch/arm/cpu/arm1176/start.S

@@ -77,33 +77,6 @@ _end_vect:
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 /* IRQ stack memory (calculated at run-time) + 8 bytes */
 .globl IRQ_STACK_START_IN
 IRQ_STACK_START_IN:

arch/arm/cpu/arm720t/config.mk

@@ -7,11 +7,3 @@
 #
 
 PLATFORM_CPPFLAGS += -march=armv4 -mtune=arm7tdmi
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,\
-			$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)

arch/arm/cpu/arm720t/start.S

@@ -67,32 +67,6 @@ _pad:			.word 0x12345678 /* now 16*4=64 */
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START

arch/arm/cpu/arm720t/tegra-common/cpu.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2010-2014, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -112,24 +112,38 @@ struct clk_pll_table tegra_pll_x_table[TEGRA_SOC_CNT][CLOCK_OSC_FREQ_COUNT] = {
 		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */
 		{ .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */
 	},
+
+	/*
+	 * T124: 700 MHz
+	 *
+	 * Register   Field  Bits   Width
+	 * ------------------------------
+	 * PLLX_BASE  p      23:20    4
+	 * PLLX_BASE  n      15: 8    8
+	 * PLLX_BASE  m       7: 0    8
+	 */
+	{
+		{ .n = 108, .m = 1, .p = 1 }, /* OSC: 13.0 MHz */
+		{ .n =  73, .m = 1, .p = 1 }, /* OSC: 19.2 MHz */
+		{ .n = 116, .m = 1, .p = 1 }, /* OSC: 12.0 MHz */
+		{ .n = 108, .m = 2, .p = 1 }, /* OSC: 26.0 MHz */
+	},
 };
 
-void adjust_pllp_out_freqs(void)
+static inline void pllx_set_iddq(void)
 {
+#if defined(CONFIG_TEGRA124)
 	struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
-	struct clk_pll *pll = &clkrst->crc_pll[CLOCK_ID_PERIPH];
 	u32 reg;
 
-	/* Set T30 PLLP_OUT1, 2, 3 & 4 freqs to 9.6, 48, 102 & 204MHz */
-	reg = readl(&pll->pll_out[0]);	/* OUTA, contains OUT2 / OUT1 */
-	reg |= (IN_408_OUT_48_DIVISOR << PLLP_OUT2_RATIO) | PLLP_OUT2_OVR
-		| (IN_408_OUT_9_6_DIVISOR << PLLP_OUT1_RATIO) | PLLP_OUT1_OVR;
-	writel(reg, &pll->pll_out[0]);
-
-	reg = readl(&pll->pll_out[1]);   /* OUTB, contains OUT4 / OUT3 */
-	reg |= (IN_408_OUT_204_DIVISOR << PLLP_OUT4_RATIO) | PLLP_OUT4_OVR
-		| (IN_408_OUT_102_DIVISOR << PLLP_OUT3_RATIO) | PLLP_OUT3_OVR;
-	writel(reg, &pll->pll_out[1]);
+	/* Disable IDDQ */
+	reg = readl(&clkrst->crc_pllx_misc3);
+	reg &= ~PLLX_IDDQ_MASK;
+	writel(reg, &clkrst->crc_pllx_misc3);
+	udelay(2);
+	debug("%s: IDDQ: PLLX IDDQ = 0x%08X\n", __func__,
+	      readl(&clkrst->crc_pllx_misc3));
+#endif
 }
 
 int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm,
@@ -146,6 +160,8 @@ int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm,
 
 	debug(" pllx_set_rate entry\n");
 
+	pllx_set_iddq();
+
 	/* Set BYPASS, m, n and p to PLLX_BASE */
 	reg = PLL_BYPASS_MASK | (divm << PLL_DIVM_SHIFT);
 	reg |= ((divn << PLL_DIVN_SHIFT) | (divp << PLL_DIVP_SHIFT));
@@ -162,18 +178,23 @@ int pllx_set_rate(struct clk_pll_simple *pll , u32 divn, u32 divm,
 		reg |= (1 << PLL_DCCON_SHIFT);
 	writel(reg, &pll->pll_misc);
 
-	/* Enable PLLX */
-	reg = readl(&pll->pll_base);
-	reg |= PLL_ENABLE_MASK;
-
 	/* Disable BYPASS */
+	reg = readl(&pll->pll_base);
 	reg &= ~PLL_BYPASS_MASK;
 	writel(reg, &pll->pll_base);
+	debug("pllx_set_rate: base = 0x%08X\n", reg);
 
 	/* Set lock_enable to PLLX_MISC */
 	reg = readl(&pll->pll_misc);
 	reg |= PLL_LOCK_ENABLE_MASK;
 	writel(reg, &pll->pll_misc);
+	debug("pllx_set_rate: misc = 0x%08X\n", reg);
+
+	/* Enable PLLX last, once it's all configured */
+	reg = readl(&pll->pll_base);
+	reg |= PLL_ENABLE_MASK;
+	writel(reg, &pll->pll_base);
+	debug("pllx_set_rate: base final = 0x%08X\n", reg);
 
 	return 0;
 }
@@ -207,12 +228,6 @@ void init_pllx(void)
 	/* set pllx */
 	sel = &tegra_pll_x_table[chip_sku][osc];
 	pllx_set_rate(pll, sel->n, sel->m, sel->p, sel->cpcon);
-
-	/* adjust PLLP_out1-4 on T3x/T114 */
-	if (soc_type >= CHIPID_TEGRA30) {
-		debug("  init_pllx: adjusting PLLP out freqs\n");
-		adjust_pllp_out_freqs();
-	}
 }
 
 void enable_cpu_clock(int enable)
@@ -334,7 +349,6 @@ void reset_A9_cpu(int reset)
 void clock_enable_coresight(int enable)
 {
 	u32 rst, src = 2;
-	int soc_type;
 
 	debug("clock_enable_coresight entry\n");
 	clock_set_enable(PERIPH_ID_CORESIGHT, enable);
@@ -343,20 +357,11 @@ void clock_enable_coresight(int enable)
 	if (enable) {
 		/*
 		 * Put CoreSight on PLLP_OUT0 and divide it down as per
-		 * PLLP base frequency based on SoC type (T20/T30/T114).
+		 * PLLP base frequency based on SoC type (T20/T30+).
 		 * Clock divider request would setup CSITE clock as 144MHz
 		 * for PLLP base 216MHz and 204MHz for PLLP base 408MHz
 		 */
-
-		soc_type = tegra_get_chip();
-		if (soc_type == CHIPID_TEGRA30 || soc_type == CHIPID_TEGRA114)
-			src = CLK_DIVIDER(NVBL_PLLP_KHZ, 204000);
-		else if (soc_type == CHIPID_TEGRA20)
-			src = CLK_DIVIDER(NVBL_PLLP_KHZ, 144000);
-		else
-			printf("%s: Unknown SoC type %X!\n",
-				 __func__, soc_type);
-
+		src = CLK_DIVIDER(NVBL_PLLP_KHZ, CSITE_KHZ);
 		clock_ll_set_source_divisor(PERIPH_ID_CSI, 0, src);
 
 		/* Unlock the CPU CoreSight interfaces */
@@ -373,8 +378,7 @@ void clock_enable_coresight(int enable)
 void halt_avp(void)
 {
 	for (;;) {
-		writel((HALT_COP_EVENT_JTAG | HALT_COP_EVENT_IRQ_1 \
-			| HALT_COP_EVENT_FIQ_1 | (FLOW_MODE_STOP<<29)),
-			FLOW_CTLR_HALT_COP_EVENTS);
+		writel(HALT_COP_EVENT_JTAG | (FLOW_MODE_STOP << 29),
+		       FLOW_CTLR_HALT_COP_EVENTS);
 	}
 }

arch/arm/cpu/arm720t/tegra-common/cpu.h

@@ -1,5 +1,5 @@
 /*
- * (C) Copyright 2010-2011
+ * (C) Copyright 2010-2014
  * NVIDIA Corporation <www.nvidia.com>
  *
  * SPDX-License-Identifier:	GPL-2.0+
@@ -11,9 +11,12 @@
 #define IO_STABILIZATION_DELAY	(1000)
 
 #if defined(CONFIG_TEGRA20)
-#define NVBL_PLLP_KHZ	(216000)
-#elif defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114)
-#define NVBL_PLLP_KHZ	(408000)
+#define NVBL_PLLP_KHZ	216000
+#define CSITE_KHZ	144000
+#elif defined(CONFIG_TEGRA30) || defined(CONFIG_TEGRA114) || \
+	defined(CONFIG_TEGRA124)
+#define NVBL_PLLP_KHZ	408000
+#define CSITE_KHZ	204000
 #else
 #error "Unknown Tegra chip!"
 #endif
@@ -68,3 +71,4 @@ int tegra_get_chip(void);
 int tegra_get_sku_info(void);
 int tegra_get_chip_sku(void);
 void adjust_pllp_out_freqs(void);
+void pmic_enable_cpu_vdd(void);

arch/arm/cpu/arm720t/tegra114/config.mk

@@ -1,19 +0,0 @@
-#
-# Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-USE_PRIVATE_LIBGCC = yes

arch/arm/cpu/arm720t/tegra114/cpu.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2013, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2010-2014, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -68,7 +68,7 @@ static void enable_cpu_clocks(void)
 	/* Wait for PLL-X to lock */
 	do {
 		reg = readl(&clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base);
-	} while ((reg & (1 << 27)) == 0);
+	} while ((reg & PLL_LOCK_MASK) == 0);
 
 	/* Wait until all clocks are stable */
 	udelay(PLL_STABILIZATION_DELAY);
@@ -126,18 +126,6 @@ void t114_init_clocks(void)
 	/* Set active CPU cluster to G */
 	clrbits_le32(&flow->cluster_control, 1);
 
-	/*
-	 * Switch system clock to PLLP_OUT4 (108 MHz), AVP will now run
-	 * at 108 MHz. This is glitch free as only the source is changed, no
-	 * special precaution needed.
-	 */
-	val = (SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_FIQ_SOURCE_SHIFT) |
-		(SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_IRQ_SOURCE_SHIFT) |
-		(SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_RUN_SOURCE_SHIFT) |
-		(SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_IDLE_SOURCE_SHIFT) |
-		(SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT);
-	writel(val, &clkrst->crc_sclk_brst_pol);
-
 	writel(SUPER_SCLK_ENB_MASK, &clkrst->crc_super_sclk_div);
 
 	debug("Setting up PLLX\n");
@@ -204,45 +192,43 @@ void t114_init_clocks(void)
 	debug("t114_init_clocks exit\n");
 }
 
-static int is_partition_powered(u32 mask)
+static bool is_partition_powered(u32 partid)
 {
 	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
 	u32 reg;
 
 	/* Get power gate status */
 	reg = readl(&pmc->pmc_pwrgate_status);
-	return (reg & mask) == mask;
+	return !!(reg & (1 << partid));
 }
 
-static int is_clamp_enabled(u32 mask)
+static bool is_clamp_enabled(u32 partid)
 {
 	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
 	u32 reg;
 
-	/* Get clamp status. TODO: Add pmc_clamp_status alias to pmc.h */
-	reg = readl(&pmc->pmc_pwrgate_timer_on);
-	return (reg & mask) == mask;
+	/* Get clamp status. */
+	reg = readl(&pmc->pmc_clamp_status);
+	return !!(reg & (1 << partid));
 }
 
-static void power_partition(u32 status, u32 partid)
+static void power_partition(u32 partid)
 {
 	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
 
-	debug("%s: status = %08X, part ID = %08X\n", __func__, status, partid);
+	debug("%s: part ID = %08X\n", __func__, partid);
 	/* Is the partition already on? */
-	if (!is_partition_powered(status)) {
+	if (!is_partition_powered(partid)) {
 		/* No, toggle the partition power state (OFF -> ON) */
 		debug("power_partition, toggling state\n");
-		clrbits_le32(&pmc->pmc_pwrgate_toggle, 0x1F);
-		setbits_le32(&pmc->pmc_pwrgate_toggle, partid);
-		setbits_le32(&pmc->pmc_pwrgate_toggle, START_CP);
+		writel(START_CP | partid, &pmc->pmc_pwrgate_toggle);
 
 		/* Wait for the power to come up */
-		while (!is_partition_powered(status))
+		while (!is_partition_powered(partid))
 			;
 
 		/* Wait for the clamp status to be cleared */
-		while (is_clamp_enabled(status))
+		while (is_clamp_enabled(partid))
 			;
 
 		/* Give I/O signals time to stabilize */
@@ -257,13 +243,13 @@ void powerup_cpus(void)
 	/* We boot to the fast cluster */
 	debug("powerup_cpus entry: G cluster\n");
 	/* Power up the fast cluster rail partition */
-	power_partition(CRAIL, CRAILID);
+	power_partition(CRAIL);
 
 	/* Power up the fast cluster non-CPU partition */
-	power_partition(C0NC, C0NCID);
+	power_partition(C0NC);
 
 	/* Power up the fast cluster CPU0 partition */
-	power_partition(CE0, CE0ID);
+	power_partition(CE0);
 }
 
 void start_cpu(u32 reset_vector)

arch/arm/cpu/arm720t/tegra124/Makefile

@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2013-2014
+# NVIDIA Corporation <www.nvidia.com>
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= cpu.o

arch/arm/cpu/arm720t/tegra124/cpu.c

@@ -0,0 +1,265 @@
+/*
+ * (C) Copyright 2013
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/ahb.h>
+#include <asm/arch/clock.h>
+#include <asm/arch/flow.h>
+#include <asm/arch/pinmux.h>
+#include <asm/arch/tegra.h>
+#include <asm/arch-tegra/clk_rst.h>
+#include <asm/arch-tegra/pmc.h>
+#include <asm/arch-tegra/ap.h>
+#include "../tegra-common/cpu.h"
+
+/* Tegra124-specific CPU init code */
+
+static void enable_cpu_power_rail(void)
+{
+	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+
+	debug("enable_cpu_power_rail entry\n");
+
+	/* un-tristate PWR_I2C SCL/SDA, rest of the defaults are correct */
+	pinmux_tristate_disable(PINGRP_PWR_I2C_SCL);
+	pinmux_tristate_disable(PINGRP_PWR_I2C_SDA);
+
+	pmic_enable_cpu_vdd();
+
+	/*
+	 * Set CPUPWRGOOD_TIMER - APB clock is 1/2 of SCLK (102MHz),
+	 * set it for 5ms as per SysEng (102MHz*5ms = 510000 (7C830h).
+	 */
+	writel(0x7C830, &pmc->pmc_cpupwrgood_timer);
+
+	/* Set polarity to 0 (normal) and enable CPUPWRREQ_OE */
+	clrbits_le32(&pmc->pmc_cntrl, CPUPWRREQ_POL);
+	setbits_le32(&pmc->pmc_cntrl, CPUPWRREQ_OE);
+}
+
+static void enable_cpu_clocks(void)
+{
+	struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+	u32 reg;
+
+	debug("enable_cpu_clocks entry\n");
+
+	/* Wait for PLL-X to lock */
+	do {
+		reg = readl(&clkrst->crc_pll_simple[SIMPLE_PLLX].pll_base);
+		debug("%s: PLLX base = 0x%08X\n", __func__, reg);
+	} while ((reg & PLL_LOCK_MASK) == 0);
+
+	debug("%s: PLLX locked, delay for stable clocks\n", __func__);
+	/* Wait until all clocks are stable */
+	udelay(PLL_STABILIZATION_DELAY);
+
+	debug("%s: Setting CCLK_BURST and DIVIDER\n", __func__);
+	writel(CCLK_BURST_POLICY, &clkrst->crc_cclk_brst_pol);
+	writel(SUPER_CCLK_DIVIDER, &clkrst->crc_super_cclk_div);
+
+	debug("%s: Enabling clock to all CPUs\n", __func__);
+	/* Enable the clock to all CPUs */
+	reg = CLR_CPU3_CLK_STP | CLR_CPU2_CLK_STP | CLR_CPU1_CLK_STP |
+		CLR_CPU0_CLK_STP;
+	writel(reg, &clkrst->crc_clk_cpu_cmplx_clr);
+
+	debug("%s: Enabling main CPU complex clocks\n", __func__);
+	/* Always enable the main CPU complex clocks */
+	clock_enable(PERIPH_ID_CPU);
+	clock_enable(PERIPH_ID_CPULP);
+	clock_enable(PERIPH_ID_CPUG);
+
+	debug("%s: Done\n", __func__);
+}
+
+static void remove_cpu_resets(void)
+{
+	struct clk_rst_ctlr *clkrst = (struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+	u32 reg;
+
+	debug("remove_cpu_resets entry\n");
+
+	/* Take the slow and fast partitions out of reset */
+	reg = CLR_NONCPURESET;
+	writel(reg, &clkrst->crc_rst_cpulp_cmplx_clr);
+	writel(reg, &clkrst->crc_rst_cpug_cmplx_clr);
+
+	/* Clear the SW-controlled reset of the slow cluster */
+	reg = CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0 |
+		CLR_L2RESET | CLR_PRESETDBG;
+	writel(reg, &clkrst->crc_rst_cpulp_cmplx_clr);
+
+	/* Clear the SW-controlled reset of the fast cluster */
+	reg = CLR_CPURESET0 | CLR_DBGRESET0 | CLR_CORERESET0 | CLR_CXRESET0 |
+		CLR_CPURESET1 | CLR_DBGRESET1 | CLR_CORERESET1 | CLR_CXRESET1 |
+		CLR_CPURESET2 | CLR_DBGRESET2 | CLR_CORERESET2 | CLR_CXRESET2 |
+		CLR_CPURESET3 | CLR_DBGRESET3 | CLR_CORERESET3 | CLR_CXRESET3 |
+		CLR_L2RESET | CLR_PRESETDBG;
+	writel(reg, &clkrst->crc_rst_cpug_cmplx_clr);
+}
+
+/**
+ * The Tegra124 requires some special clock initialization, including setting up
+ * the DVC I2C, turning on MSELECT and selecting the G CPU cluster
+ */
+void tegra124_init_clocks(void)
+{
+	struct flow_ctlr *flow = (struct flow_ctlr *)NV_PA_FLOW_BASE;
+	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+	struct clk_rst_ctlr *clkrst =
+			(struct clk_rst_ctlr *)NV_PA_CLK_RST_BASE;
+	u32 val;
+
+	debug("tegra124_init_clocks entry\n");
+
+	/* Set active CPU cluster to G */
+	clrbits_le32(&flow->cluster_control, 1);
+
+	/* Change the oscillator drive strength */
+	val = readl(&clkrst->crc_osc_ctrl);
+	val &= ~OSC_XOFS_MASK;
+	val |= (OSC_DRIVE_STRENGTH << OSC_XOFS_SHIFT);
+	writel(val, &clkrst->crc_osc_ctrl);
+
+	/* Update same value in PMC_OSC_EDPD_OVER XOFS field for warmboot */
+	val = readl(&pmc->pmc_osc_edpd_over);
+	val &= ~PMC_XOFS_MASK;
+	val |= (OSC_DRIVE_STRENGTH << PMC_XOFS_SHIFT);
+	writel(val, &pmc->pmc_osc_edpd_over);
+
+	/* Set HOLD_CKE_LOW_EN to 1 */
+	setbits_le32(&pmc->pmc_cntrl2, HOLD_CKE_LOW_EN);
+
+	debug("Setting up PLLX\n");
+	init_pllx();
+
+	val = (1 << CLK_SYS_RATE_AHB_RATE_SHIFT);
+	writel(val, &clkrst->crc_clk_sys_rate);
+
+	/* Enable clocks to required peripherals. TBD - minimize this list */
+	debug("Enabling clocks\n");
+
+	clock_set_enable(PERIPH_ID_CACHE2, 1);
+	clock_set_enable(PERIPH_ID_GPIO, 1);
+	clock_set_enable(PERIPH_ID_TMR, 1);
+	clock_set_enable(PERIPH_ID_CPU, 1);
+	clock_set_enable(PERIPH_ID_EMC, 1);
+	clock_set_enable(PERIPH_ID_I2C5, 1);
+	clock_set_enable(PERIPH_ID_APBDMA, 1);
+	clock_set_enable(PERIPH_ID_MEM, 1);
+	clock_set_enable(PERIPH_ID_CORESIGHT, 1);
+	clock_set_enable(PERIPH_ID_MSELECT, 1);
+	clock_set_enable(PERIPH_ID_DVFS, 1);
+
+	/*
+	 * Set MSELECT clock source as PLLP (00), and ask for a clock
+	 * divider that would set the MSELECT clock at 102MHz for a
+	 * PLLP base of 408MHz.
+	 */
+	clock_ll_set_source_divisor(PERIPH_ID_MSELECT, 0,
+				    CLK_DIVIDER(NVBL_PLLP_KHZ, 102000));
+
+	/* Give clock time to stabilize */
+	udelay(IO_STABILIZATION_DELAY);
+
+	/* I2C5 (DVC) gets CLK_M and a divisor of 17 */
+	clock_ll_set_source_divisor(PERIPH_ID_I2C5, 3, 16);
+
+	/* Give clock time to stabilize */
+	udelay(IO_STABILIZATION_DELAY);
+
+	/* Take required peripherals out of reset */
+	debug("Taking periphs out of reset\n");
+	reset_set_enable(PERIPH_ID_CACHE2, 0);
+	reset_set_enable(PERIPH_ID_GPIO, 0);
+	reset_set_enable(PERIPH_ID_TMR, 0);
+	reset_set_enable(PERIPH_ID_COP, 0);
+	reset_set_enable(PERIPH_ID_EMC, 0);
+	reset_set_enable(PERIPH_ID_I2C5, 0);
+	reset_set_enable(PERIPH_ID_APBDMA, 0);
+	reset_set_enable(PERIPH_ID_MEM, 0);
+	reset_set_enable(PERIPH_ID_CORESIGHT, 0);
+	reset_set_enable(PERIPH_ID_MSELECT, 0);
+	reset_set_enable(PERIPH_ID_DVFS, 0);
+
+	debug("tegra124_init_clocks exit\n");
+}
+
+static bool is_partition_powered(u32 partid)
+{
+	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+	u32 reg;
+
+	/* Get power gate status */
+	reg = readl(&pmc->pmc_pwrgate_status);
+	return !!(reg & (1 << partid));
+}
+
+static void power_partition(u32 partid)
+{
+	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+
+	debug("%s: part ID = %08X\n", __func__, partid);
+	/* Is the partition already on? */
+	if (!is_partition_powered(partid)) {
+		/* No, toggle the partition power state (OFF -> ON) */
+		debug("power_partition, toggling state\n");
+		writel(START_CP | partid, &pmc->pmc_pwrgate_toggle);
+
+		/* Wait for the power to come up */
+		while (!is_partition_powered(partid))
+			;
+
+		/* Give I/O signals time to stabilize */
+		udelay(IO_STABILIZATION_DELAY);
+	}
+}
+
+void powerup_cpus(void)
+{
+	debug("powerup_cpus entry\n");
+
+	/* We boot to the fast cluster */
+	debug("powerup_cpus entry: G cluster\n");
+
+	/* Power up the fast cluster rail partition */
+	debug("powerup_cpus: CRAIL\n");
+	power_partition(CRAIL);
+
+	/* Power up the fast cluster non-CPU partition */
+	debug("powerup_cpus: C0NC\n");
+	power_partition(C0NC);
+
+	/* Power up the fast cluster CPU0 partition */
+	debug("powerup_cpus: CE0\n");
+	power_partition(CE0);
+
+	debug("powerup_cpus: done\n");
+}
+
+void start_cpu(u32 reset_vector)
+{
+	struct pmc_ctlr *pmc = (struct pmc_ctlr *)NV_PA_PMC_BASE;
+
+	debug("start_cpu entry, reset_vector = %x\n", reset_vector);
+
+	tegra124_init_clocks();
+
+	/* Set power-gating timer multiplier */
+	writel((MULT_8 << TIMER_MULT_SHIFT) | (MULT_8 << TIMER_MULT_CPU_SHIFT),
+	       &pmc->pmc_pwrgate_timer_mult);
+
+	enable_cpu_power_rail();
+	enable_cpu_clocks();
+	clock_enable_coresight(1);
+	remove_cpu_resets();
+	writel(reset_vector, EXCEP_VECTOR_CPU_RESET_VECTOR);
+	powerup_cpus();
+	debug("start_cpu exit, should continue @ reset_vector\n");
+}

arch/arm/cpu/arm720t/tegra20/config.mk

@@ -1,10 +0,0 @@
-#
-# (C) Copyright 2010,2011
-# NVIDIA Corporation <www.nvidia.com>
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# SPDX-License-Identifier:	GPL-2.0+
-#
-USE_PRIVATE_LIBGCC = yes

arch/arm/cpu/arm720t/tegra30/config.mk

@@ -1,19 +0,0 @@
-#
-# Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
-#
-# (C) Copyright 2002
-# Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-#
-# This program is free software; you can redistribute it and/or modify it
-# under the terms and conditions of the GNU General Public License,
-# version 2, as published by the Free Software Foundation.
-#
-# This program is distributed in the hope it will be useful, but WITHOUT
-# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
-# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
-# more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-#
-USE_PRIVATE_LIBGCC = yes

arch/arm/cpu/arm720t/tegra30/cpu.c

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2010-2012, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2010-2014, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -84,18 +84,6 @@ void t30_init_clocks(void)
 	/* Set active CPU cluster to G */
 	clrbits_le32(flow->cluster_control, 1 << 0);
 
-	/*
-	 * Switch system clock to PLLP_OUT4 (108 MHz), AVP will now run
-	 * at 108 MHz. This is glitch free as only the source is changed, no
-	 * special precaution needed.
-	 */
-	val = (SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_FIQ_SOURCE_SHIFT) |
-		(SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_IRQ_SOURCE_SHIFT) |
-		(SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_RUN_SOURCE_SHIFT) |
-		(SCLK_SOURCE_PLLP_OUT4 << SCLK_SWAKEUP_IDLE_SOURCE_SHIFT) |
-		(SCLK_SYS_STATE_RUN << SCLK_SYS_STATE_SHIFT);
-	writel(val, &clkrst->crc_sclk_brst_pol);
-
 	writel(SUPER_SCLK_ENB_MASK, &clkrst->crc_super_sclk_div);
 
 	val = (0 << CLK_SYS_RATE_HCLK_DISABLE_SHIFT) |

arch/arm/cpu/arm920t/config.mk

@@ -6,10 +6,3 @@
 #
 
 PLATFORM_CPPFLAGS += -march=armv4
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)

arch/arm/cpu/arm920t/ep93xx/u-boot.lds

@@ -50,5 +50,8 @@ SECTIONS
 	.bss : { *(.bss*) }
 	__bss_end = .;
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
 }

arch/arm/cpu/arm920t/start.S

@@ -55,32 +55,6 @@ _fiq:			.word fiq
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START

arch/arm/cpu/arm926ejs/at91/at91sam9263_devices.c

@@ -143,6 +143,31 @@ void at91_spi1_hw_init(unsigned long cs_mask)
 }
 #endif
 
+#if defined(CONFIG_GENERIC_ATMEL_MCI)
+void at91_mci_hw_init(void)
+{
+	/* Enable mci clock */
+	struct at91_pmc *pmc = (struct at91_pmc *)ATMEL_BASE_PMC;
+	writel(1 << ATMEL_ID_MCI1, &pmc->pcer);
+
+	at91_set_a_periph(AT91_PIO_PORTA, 6, PUP);	/* MCI1_CK */
+
+#if defined(CONFIG_ATMEL_MCI_PORTB)
+	at91_set_a_periph(AT91_PIO_PORTA, 21, PUP);	/* MCI1_CDB */
+	at91_set_a_periph(AT91_PIO_PORTA, 22, PUP);	/* MCI1_DB0 */
+	at91_set_a_periph(AT91_PIO_PORTA, 23, PUP);	/* MCI1_DB1 */
+	at91_set_a_periph(AT91_PIO_PORTA, 24, PUP);	/* MCI1_DB2 */
+	at91_set_a_periph(AT91_PIO_PORTA, 25, PUP);	/* MCI1_DB3 */
+#else
+	at91_set_a_periph(AT91_PIO_PORTA, 7, PUP);	/* MCI1_CDA */
+	at91_set_a_periph(AT91_PIO_PORTA, 8, PUP);	/* MCI1_DA0 */
+	at91_set_a_periph(AT91_PIO_PORTA, 9, PUP);	/* MCI1_DA1 */
+	at91_set_a_periph(AT91_PIO_PORTA, 10, PUP);	/* MCI1_DA2 */
+	at91_set_a_periph(AT91_PIO_PORTA, 11, PUP);	/* MCI1_DA3 */
+#endif
+}
+#endif
+
 #ifdef CONFIG_MACB
 void at91_macb_hw_init(void)
 {

arch/arm/cpu/arm926ejs/at91/lowlevel_init.S

@@ -26,27 +26,18 @@
 #define CONFIG_SYS_MATRIX_EBICSA_VAL CONFIG_SYS_MATRIX_EBI0CSA_VAL
 #endif
 
-_TEXT_BASE:
-	.word	CONFIG_SYS_TEXT_BASE
-
 .globl lowlevel_init
 .type lowlevel_init,function
 lowlevel_init:
 
-	mov	r5, pc		/* r5 = POS1 + 4 current */
 POS1:
+	adr	r5, POS1	/* r5 = POS1 run time */
 	ldr	r0, =POS1	/* r0 = POS1 compile */
-	ldr	r2, _TEXT_BASE
-	sub	r0, r0, r2	/* r0 = POS1-_TEXT_BASE (POS1 relative) */
 	sub	r5, r5, r0	/* r0 = CONFIG_SYS_TEXT_BASE-1 */
-	sub	r5, r5, #4	/* r1 = text base - current */
 
 	/* memory control configuration 1 */
 	ldr	r0, =SMRDATA
 	ldr	r2, =SMRDATA1
-	ldr	r1, _TEXT_BASE
-	sub	r0, r0, r1
-	sub	r2, r2, r1
 	add	r0, r0, r5
 	add	r2, r2, r5
 0:
@@ -149,9 +140,6 @@ PLL_setup_end:
 
 	ldr	r0, =SMRDATA1
 	ldr	r2, =SMRDATA2
-	ldr	r1, _TEXT_BASE
-	sub	r0, r0, r1
-	sub	r2, r2, r1
 	add	r0, r0, r5
 	add	r2, r2, r5
 2:

arch/arm/cpu/arm926ejs/config.mk

@@ -6,20 +6,3 @@
 #
 
 PLATFORM_CPPFLAGS += -march=armv5te
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)
-
-ifneq ($(CONFIG_IMX_CONFIG),)
-ifdef CONFIG_SPL
-ifdef CONFIG_SPL_BUILD
-ALL-y	+= $(OBJTREE)/SPL
-endif
-else
-ALL-y	+= $(obj)u-boot.imx
-endif
-endif

arch/arm/cpu/arm926ejs/davinci/config.mk

@@ -4,5 +4,5 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 ifndef CONFIG_SPL_BUILD
-ALL-$(CONFIG_SPL_FRAMEWORK)	+= $(obj)u-boot.ais
+ALL-$(CONFIG_SPL_FRAMEWORK)	+= u-boot.ais
 endif

arch/arm/cpu/arm926ejs/mxs/start.S

@@ -101,32 +101,6 @@ fiq:
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#ifdef CONFIG_SPL_TEXT_BASE
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START
@@ -207,6 +181,5 @@ _reset:
 	bx	lr
 
 _hang:
-	ldr	sp, _TEXT_BASE			/* switch to abort stack */
 1:
 	bl	1b				/* hang and never return */

arch/arm/cpu/arm926ejs/mxs/u-boot-spl.lds

@@ -49,9 +49,14 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
 
-	.dynsym _end : { *(.dynsym) }
+	_image_binary_end = .;
+
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }

arch/arm/cpu/arm926ejs/omap/Makefile

@@ -5,5 +5,6 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 
-obj-y	= timer.o cpuinfo.o
+obj-y	= timer.o
+obj-$(CONFIG_DISPLAY_CPUINFO) += cpuinfo.o
 obj-y	+= reset.o

arch/arm/cpu/arm926ejs/omap/cpuinfo.c

@@ -13,7 +13,7 @@
 #include <command.h>
 #include <linux/compiler.h>
 
-#if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP)
+#if defined(CONFIG_OMAP)
 
 #define omap_readw(x)		*(volatile unsigned short *)(x)
 #define omap_readl(x)		*(volatile unsigned long *)(x)
@@ -239,4 +239,4 @@ int print_cpuinfo (void)
 	return 0;
 }
 
-#endif /* #if defined(CONFIG_DISPLAY_CPUINFO) && defined(CONFIG_OMAP) */
+#endif /* #if defined(CONFIG_OMAP) */

arch/arm/cpu/arm926ejs/spear/u-boot-spl.lds

@@ -49,9 +49,14 @@ SECTIONS
 		__bss_end = .;
 	}
 
-	_end = .;
+	.end :
+	{
+		*(.__end)
+	}
 
-	.dynsym _end : { *(.dynsym) }
+	_image_binary_end = .;
+
+	.dynsym _image_binary_end : { *(.dynsym) }
 	.dynbss : { *(.dynbss) }
 	.dynstr : { *(.dynstr*) }
 	.dynamic : { *(.dynamic*) }

arch/arm/cpu/arm926ejs/start.S

@@ -102,32 +102,6 @@ _fiq:
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START
@@ -330,7 +304,6 @@ flush_dcache:
 #ifdef CONFIG_SPL_BUILD
 	.align	5
 do_hang:
-	ldr	sp, _TEXT_BASE			/* switch to abort stack */
 1:
 	bl	1b				/* hang and never return */
 #else	/* !CONFIG_SPL_BUILD */

arch/arm/cpu/arm946es/config.mk

@@ -6,10 +6,3 @@
 #
 
 PLATFORM_CPPFLAGS +=  -march=armv4
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)

arch/arm/cpu/arm946es/start.S

@@ -71,32 +71,6 @@ _vectors_end:
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START

arch/arm/cpu/arm_intcm/config.mk

@@ -6,10 +6,3 @@
 #
 
 PLATFORM_CPPFLAGS +=  -march=armv4
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)

arch/arm/cpu/arm_intcm/start.S

@@ -67,32 +67,6 @@ _fiq:
  *************************************************************************
  */
 
-.globl _TEXT_BASE
-_TEXT_BASE:
-#if defined(CONFIG_SPL_BUILD) && defined(CONFIG_SPL_TEXT_BASE)
-	.word	CONFIG_SPL_TEXT_BASE
-#else
-	.word	CONFIG_SYS_TEXT_BASE
-#endif
-
-/*
- * These are defined in the board-specific linker script.
- * Subtracting _start from them lets the linker put their
- * relative position in the executable instead of leaving
- * them null.
- */
-.globl _bss_start_ofs
-_bss_start_ofs:
-	.word __bss_start - _start
-
-.globl _bss_end_ofs
-_bss_end_ofs:
-	.word __bss_end - _start
-
-.globl _end_ofs
-_end_ofs:
-	.word _end - _start
-
 #ifdef CONFIG_USE_IRQ
 /* IRQ stack memory (calculated at run-time) */
 .globl IRQ_STACK_START

arch/arm/cpu/armv7/Makefile

@@ -23,6 +23,7 @@ obj-y	+= nonsec_virt.o
 obj-y	+= virt-v7.o
 endif
 
+obj-$(CONFIG_KONA) += kona-common/
 obj-$(CONFIG_OMAP_COMMON) += omap-common/
 obj-$(CONFIG_TEGRA) += tegra-common/
 

arch/arm/cpu/armv7/am33xx/board.c

@@ -36,11 +36,15 @@
 
 DECLARE_GLOBAL_DATA_PTR;
 
-static const struct gpio_bank gpio_bank_am33xx[4] = {
+static const struct gpio_bank gpio_bank_am33xx[] = {
 	{ (void *)AM33XX_GPIO0_BASE, METHOD_GPIO_24XX },
 	{ (void *)AM33XX_GPIO1_BASE, METHOD_GPIO_24XX },
 	{ (void *)AM33XX_GPIO2_BASE, METHOD_GPIO_24XX },
 	{ (void *)AM33XX_GPIO3_BASE, METHOD_GPIO_24XX },
+#ifdef CONFIG_AM43XX
+	{ (void *)AM33XX_GPIO4_BASE, METHOD_GPIO_24XX },
+	{ (void *)AM33XX_GPIO5_BASE, METHOD_GPIO_24XX },
+#endif
 };
 
 const struct gpio_bank *const omap_gpio_bank = gpio_bank_am33xx;

arch/arm/cpu/armv7/am33xx/clock_am43xx.c

@@ -94,10 +94,14 @@ void enable_basic_clocks(void)
 		&cmper->gpio1clkctrl,
 		&cmper->gpio2clkctrl,
 		&cmper->gpio3clkctrl,
+		&cmper->gpio4clkctrl,
+		&cmper->gpio5clkctrl,
 		&cmper->i2c1clkctrl,
+		&cmper->cpgmac0clkctrl,
 		&cmper->emiffwclkctrl,
 		&cmper->emifclkctrl,
 		&cmper->otfaemifclkctrl,
+		&cmper->qspiclkctrl,
 		0
 	};
 

arch/arm/cpu/armv7/am33xx/clock_ti814x.c

@@ -211,11 +211,8 @@ static u32 pll_dco_freq_sel(u32 clkout_dco)
 static u32 pll_sigma_delta_val(u32 clkout_dco)
 {
 	u32 sig_val = 0;
-	float frac_div;
 
-	frac_div = (float) clkout_dco / 250;
-	frac_div = frac_div + 0.90;
-	sig_val = (int)frac_div;
+	sig_val = (clkout_dco + 225) / 250;
 	sig_val = sig_val << 24;
 
 	return sig_val;

arch/arm/cpu/armv7/am33xx/config.mk

@@ -4,8 +4,8 @@
 # SPDX-License-Identifier:	GPL-2.0+
 #
 ifdef CONFIG_SPL_BUILD
-ALL-y	+= $(OBJTREE)/MLO
-ALL-$(CONFIG_SPL_SPI_SUPPORT) += $(OBJTREE)/MLO.byteswap
+ALL-y	+= MLO
+ALL-$(CONFIG_SPL_SPI_SUPPORT) += MLO.byteswap
 else
-ALL-y	+= $(obj)u-boot.img
+ALL-y	+= u-boot.img
 endif

arch/arm/cpu/armv7/am33xx/ddr.c

@@ -80,8 +80,8 @@ static void configure_mr(int nr, u32 cs)
  */
 void config_sdram_emif4d5(const struct emif_regs *regs, int nr)
 {
-	writel(0x0, &emif_reg[nr]->emif_pwr_mgmt_ctrl);
-	writel(0x0, &emif_reg[nr]->emif_pwr_mgmt_ctrl_shdw);
+	writel(0xA0, &emif_reg[nr]->emif_pwr_mgmt_ctrl);
+	writel(0xA0, &emif_reg[nr]->emif_pwr_mgmt_ctrl_shdw);
 	writel(0x1, &emif_reg[nr]->emif_iodft_tlgc);
 	writel(regs->zq_config, &emif_reg[nr]->emif_zq_config);
 
@@ -96,6 +96,7 @@ void config_sdram_emif4d5(const struct emif_regs *regs, int nr)
 
 	writel(regs->ref_ctrl, &emif_reg[nr]->emif_sdram_ref_ctrl);
 	writel(regs->sdram_config, &emif_reg[nr]->emif_sdram_config);
+	writel(regs->sdram_config, &cstat->secure_emif_sdram_config);
 
 	if (emif_sdram_type() == EMIF_SDRAM_TYPE_LPDDR2) {
 		configure_mr(nr, 0);

arch/arm/cpu/armv7/am33xx/emif4.c

@@ -113,7 +113,7 @@ void config_ddr(unsigned int pll, const struct ctrl_ioregs *ioregs,
 	writel(readl(&cm_device->cm_dll_ctrl) & ~0x1, &cm_device->cm_dll_ctrl);
 	while ((readl(&cm_device->cm_dll_ctrl) && CM_DLL_READYST) == 0)
 		;
-	writel(0x0, &ddrctrl->ddrioctrl);
+	writel(0x80000000, &ddrctrl->ddrioctrl);
 
 	config_io_ctrl(ioregs);
 

arch/arm/cpu/armv7/am33xx/u-boot-spl.lds

@@ -38,7 +38,11 @@ SECTIONS
 
 	. = ALIGN(4);
 	__image_copy_end = .;
-	_end = .;
+
+	.end :
+	{
+		*(.__end)
+	} >.sram
 
 	.bss :
 	{

arch/arm/cpu/armv7/bcm281xx/Makefile

@@ -0,0 +1,11 @@
+#
+# Copyright 2013 Broadcom Corporation.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= reset.o
+obj-y	+= clk-core.o
+obj-y	+= clk-bcm281xx.o
+obj-y	+= clk-sdio.o
+obj-y	+= clk-bsc.o

arch/arm/cpu/armv7/bcm281xx/clk-bcm281xx.c

@@ -0,0 +1,523 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+/*
+ *
+ * bcm281xx-specific clock tables
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/sysmap.h>
+#include <asm/kona-common/clk.h>
+#include "clk-core.h"
+
+#define CLOCK_1K		1000
+#define CLOCK_1M		(CLOCK_1K * 1000)
+
+/* declare a reference clock */
+#define DECLARE_REF_CLK(clk_name, clk_parent, clk_rate, clk_div) \
+static struct refclk clk_name = { \
+	.clk    =       { \
+		.name   =       #clk_name, \
+		.parent =       clk_parent, \
+		.rate   =       clk_rate, \
+		.div    =       clk_div, \
+		.ops    =       &ref_clk_ops, \
+	}, \
+}
+
+/*
+ * Reference clocks
+ */
+
+/* Declare a list of reference clocks */
+DECLARE_REF_CLK(ref_crystal,	0,		26  * CLOCK_1M,	1);
+DECLARE_REF_CLK(var_96m,	0,		96  * CLOCK_1M,	1);
+DECLARE_REF_CLK(ref_96m,	0,		96  * CLOCK_1M,	1);
+DECLARE_REF_CLK(ref_312m,	0,		312 * CLOCK_1M,	0);
+DECLARE_REF_CLK(ref_104m,	&ref_312m.clk,	104 * CLOCK_1M,	3);
+DECLARE_REF_CLK(ref_52m,	&ref_104m.clk,	52  * CLOCK_1M,	2);
+DECLARE_REF_CLK(ref_13m,	&ref_52m.clk,	13  * CLOCK_1M,	4);
+DECLARE_REF_CLK(var_312m,	0,		312 * CLOCK_1M,	0);
+DECLARE_REF_CLK(var_104m,	&var_312m.clk,	104 * CLOCK_1M,	3);
+DECLARE_REF_CLK(var_52m,	&var_104m.clk,	52  * CLOCK_1M,	2);
+DECLARE_REF_CLK(var_13m,	&var_52m.clk,	13  * CLOCK_1M,	4);
+
+struct refclk_lkup {
+	struct refclk *procclk;
+	const char *name;
+};
+
+/* Lookup table for string to clk tranlation */
+#define MKSTR(x) {&x, #x}
+static struct refclk_lkup refclk_str_tbl[] = {
+	MKSTR(ref_crystal), MKSTR(var_96m), MKSTR(ref_96m),
+	MKSTR(ref_312m), MKSTR(ref_104m), MKSTR(ref_52m),
+	MKSTR(ref_13m), MKSTR(var_312m), MKSTR(var_104m),
+	MKSTR(var_52m), MKSTR(var_13m),
+};
+
+int refclk_entries = sizeof(refclk_str_tbl)/sizeof(refclk_str_tbl[0]);
+
+/* convert ref clock string to clock structure pointer */
+struct refclk *refclk_str_to_clk(const char *name)
+{
+	int i;
+	struct refclk_lkup *tblp = refclk_str_tbl;
+	for (i = 0; i < refclk_entries; i++, tblp++) {
+		if (!(strcmp(name, tblp->name)))
+			return tblp->procclk;
+	}
+	return NULL;
+}
+
+/* frequency tables indexed by freq_id */
+unsigned long master_axi_freq_tbl[8] = {
+	26 * CLOCK_1M,
+	52 * CLOCK_1M,
+	104 * CLOCK_1M,
+	156 * CLOCK_1M,
+	156 * CLOCK_1M,
+	208 * CLOCK_1M,
+	312 * CLOCK_1M,
+	312 * CLOCK_1M
+};
+
+unsigned long master_ahb_freq_tbl[8] = {
+	26 * CLOCK_1M,
+	52 * CLOCK_1M,
+	52 * CLOCK_1M,
+	52 * CLOCK_1M,
+	78 * CLOCK_1M,
+	104 * CLOCK_1M,
+	104 * CLOCK_1M,
+	156 * CLOCK_1M
+};
+
+unsigned long slave_axi_freq_tbl[8] = {
+	26 * CLOCK_1M,
+	52 * CLOCK_1M,
+	78 * CLOCK_1M,
+	104 * CLOCK_1M,
+	156 * CLOCK_1M,
+	156 * CLOCK_1M
+};
+
+unsigned long slave_apb_freq_tbl[8] = {
+	26 * CLOCK_1M,
+	26 * CLOCK_1M,
+	39 * CLOCK_1M,
+	52 * CLOCK_1M,
+	52 * CLOCK_1M,
+	78 * CLOCK_1M
+};
+
+static struct bus_clk_data bsc1_apb_data = {
+	.gate = HW_SW_GATE_AUTO(0x0458, 16, 0, 1),
+};
+
+static struct bus_clk_data bsc2_apb_data = {
+	.gate = HW_SW_GATE_AUTO(0x045c, 16, 0, 1),
+};
+
+static struct bus_clk_data bsc3_apb_data = {
+	.gate = HW_SW_GATE_AUTO(0x0484, 16, 0, 1),
+};
+
+/* * Master CCU clocks */
+static struct peri_clk_data sdio1_data = {
+	.gate		= HW_SW_GATE(0x0358, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_52m",
+				 "ref_52m",
+				 "var_96m",
+				 "ref_96m"),
+	.sel		= SELECTOR(0x0a28, 0, 3),
+	.div		= DIVIDER(0x0a28, 4, 14),
+	.trig		= TRIGGER(0x0afc, 9),
+};
+
+static struct peri_clk_data sdio2_data = {
+	.gate		= HW_SW_GATE(0x035c, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_52m",
+				 "ref_52m",
+				 "var_96m",
+				 "ref_96m"),
+	.sel		= SELECTOR(0x0a2c, 0, 3),
+	.div		= DIVIDER(0x0a2c, 4, 14),
+	.trig		= TRIGGER(0x0afc, 10),
+};
+
+static struct peri_clk_data sdio3_data = {
+	.gate		= HW_SW_GATE(0x0364, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_52m",
+				 "ref_52m",
+				 "var_96m",
+				 "ref_96m"),
+	.sel		= SELECTOR(0x0a34, 0, 3),
+	.div		= DIVIDER(0x0a34, 4, 14),
+	.trig		= TRIGGER(0x0afc, 12),
+};
+
+static struct peri_clk_data sdio4_data = {
+	.gate		= HW_SW_GATE(0x0360, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_52m",
+				 "ref_52m",
+				 "var_96m",
+				 "ref_96m"),
+	.sel		= SELECTOR(0x0a30, 0, 3),
+	.div		= DIVIDER(0x0a30, 4, 14),
+	.trig		= TRIGGER(0x0afc, 11),
+};
+
+static struct peri_clk_data sdio1_sleep_data = {
+	.clocks		= CLOCKS("ref_32k"),
+	.gate		= SW_ONLY_GATE(0x0358, 20, 4),
+};
+
+static struct peri_clk_data sdio2_sleep_data = {
+	.clocks		= CLOCKS("ref_32k"),
+	.gate		= SW_ONLY_GATE(0x035c, 20, 4),
+};
+
+static struct peri_clk_data sdio3_sleep_data = {
+	.clocks		= CLOCKS("ref_32k"),
+	.gate		= SW_ONLY_GATE(0x0364, 20, 4),
+};
+
+static struct peri_clk_data sdio4_sleep_data = {
+	.clocks		= CLOCKS("ref_32k"),
+	.gate		= SW_ONLY_GATE(0x0360, 20, 4),
+};
+
+static struct bus_clk_data sdio1_ahb_data = {
+	.gate		= HW_SW_GATE_AUTO(0x0358, 16, 0, 1),
+};
+
+static struct bus_clk_data sdio2_ahb_data = {
+	.gate		= HW_SW_GATE_AUTO(0x035c, 16, 0, 1),
+};
+
+static struct bus_clk_data sdio3_ahb_data = {
+	.gate		= HW_SW_GATE_AUTO(0x0364, 16, 0, 1),
+};
+
+static struct bus_clk_data sdio4_ahb_data = {
+	.gate		= HW_SW_GATE_AUTO(0x0360, 16, 0, 1),
+};
+
+/* * Slave CCU clocks */
+static struct peri_clk_data bsc1_data = {
+	.gate		= HW_SW_GATE(0x0458, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_104m",
+				 "ref_104m",
+				 "var_13m",
+				 "ref_13m"),
+	.sel		= SELECTOR(0x0a64, 0, 3),
+	.trig		= TRIGGER(0x0afc, 23),
+};
+
+static struct peri_clk_data bsc2_data = {
+	.gate		= HW_SW_GATE(0x045c, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_104m",
+				 "ref_104m",
+				 "var_13m",
+				 "ref_13m"),
+	.sel		= SELECTOR(0x0a68, 0, 3),
+	.trig		= TRIGGER(0x0afc, 24),
+};
+
+static struct peri_clk_data bsc3_data = {
+	.gate		= HW_SW_GATE(0x0484, 18, 2, 3),
+	.clocks		= CLOCKS("ref_crystal",
+				 "var_104m",
+				 "ref_104m",
+				 "var_13m",
+				 "ref_13m"),
+	.sel		= SELECTOR(0x0a84, 0, 3),
+	.trig		= TRIGGER(0x0b00, 2),
+};
+
+/*
+ * CCU clocks
+ */
+
+static struct ccu_clock kpm_ccu_clk = {
+	.clk = {
+		.name = "kpm_ccu_clk",
+		.ops = &ccu_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.num_policy_masks = 1,
+	.policy_freq_offset = 0x00000008,
+	.freq_bit_shift = 8,
+	.policy_ctl_offset = 0x0000000c,
+	.policy0_mask_offset = 0x00000010,
+	.policy1_mask_offset = 0x00000014,
+	.policy2_mask_offset = 0x00000018,
+	.policy3_mask_offset = 0x0000001c,
+	.lvm_en_offset = 0x00000034,
+	.freq_id = 2,
+	.freq_tbl = master_axi_freq_tbl,
+};
+
+static struct ccu_clock kps_ccu_clk = {
+	.clk = {
+		.name = "kps_ccu_clk",
+		.ops = &ccu_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+	},
+	.num_policy_masks = 2,
+	.policy_freq_offset = 0x00000008,
+	.freq_bit_shift = 8,
+	.policy_ctl_offset = 0x0000000c,
+	.policy0_mask_offset = 0x00000010,
+	.policy1_mask_offset = 0x00000014,
+	.policy2_mask_offset = 0x00000018,
+	.policy3_mask_offset = 0x0000001c,
+	.policy0_mask2_offset = 0x00000048,
+	.policy1_mask2_offset = 0x0000004c,
+	.policy2_mask2_offset = 0x00000050,
+	.policy3_mask2_offset = 0x00000054,
+	.lvm_en_offset = 0x00000034,
+	.freq_id = 2,
+	.freq_tbl = slave_axi_freq_tbl,
+};
+
+/*
+ * Bus clocks
+ */
+
+/* KPM bus clocks */
+static struct bus_clock sdio1_ahb_clk = {
+	.clk = {
+		.name = "sdio1_ahb_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.freq_tbl = master_ahb_freq_tbl,
+	.data = &sdio1_ahb_data,
+};
+
+static struct bus_clock sdio2_ahb_clk = {
+	.clk = {
+		.name = "sdio2_ahb_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.freq_tbl = master_ahb_freq_tbl,
+	.data = &sdio2_ahb_data,
+};
+
+static struct bus_clock sdio3_ahb_clk = {
+	.clk = {
+		.name = "sdio3_ahb_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.freq_tbl = master_ahb_freq_tbl,
+	.data = &sdio3_ahb_data,
+};
+
+static struct bus_clock sdio4_ahb_clk = {
+	.clk = {
+		.name = "sdio4_ahb_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.freq_tbl = master_ahb_freq_tbl,
+	.data = &sdio4_ahb_data,
+};
+
+static struct bus_clock bsc1_apb_clk = {
+	.clk = {
+		.name = "bsc1_apb_clk",
+		.parent = &kps_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+	},
+	.freq_tbl = slave_apb_freq_tbl,
+	.data = &bsc1_apb_data,
+};
+
+static struct bus_clock bsc2_apb_clk = {
+	.clk = {
+		.name = "bsc2_apb_clk",
+		.parent = &kps_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+		},
+	.freq_tbl = slave_apb_freq_tbl,
+	.data = &bsc2_apb_data,
+};
+
+static struct bus_clock bsc3_apb_clk = {
+	.clk = {
+		.name = "bsc3_apb_clk",
+		.parent = &kps_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+		},
+	.freq_tbl = slave_apb_freq_tbl,
+	.data = &bsc3_apb_data,
+};
+
+/* KPM peripheral */
+static struct peri_clock sdio1_clk = {
+	.clk = {
+		.name = "sdio1_clk",
+		.parent = &ref_52m.clk,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio1_data,
+};
+
+static struct peri_clock sdio2_clk = {
+	.clk = {
+		.name = "sdio2_clk",
+		.parent = &ref_52m.clk,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio2_data,
+};
+
+static struct peri_clock sdio3_clk = {
+	.clk = {
+		.name = "sdio3_clk",
+		.parent = &ref_52m.clk,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio3_data,
+};
+
+static struct peri_clock sdio4_clk = {
+	.clk = {
+		.name = "sdio4_clk",
+		.parent = &ref_52m.clk,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio4_data,
+};
+
+static struct peri_clock sdio1_sleep_clk = {
+	.clk = {
+		.name = "sdio1_sleep_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio1_sleep_data,
+};
+
+static struct peri_clock sdio2_sleep_clk = {
+	.clk = {
+		.name = "sdio2_sleep_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio2_sleep_data,
+};
+
+static struct peri_clock sdio3_sleep_clk = {
+	.clk = {
+		.name = "sdio3_sleep_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio3_sleep_data,
+};
+
+static struct peri_clock sdio4_sleep_clk = {
+	.clk = {
+		.name = "sdio4_sleep_clk",
+		.parent = &kpm_ccu_clk.clk,
+		.ops = &bus_clk_ops,
+		.ccu_clk_mgr_base = KONA_MST_CLK_BASE_ADDR,
+	},
+	.data = &sdio4_sleep_data,
+};
+
+/* KPS peripheral clock */
+static struct peri_clock bsc1_clk = {
+	.clk = {
+		.name = "bsc1_clk",
+		.parent = &ref_13m.clk,
+		.rate = 13 * CLOCK_1M,
+		.div = 1,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+	},
+	.data = &bsc1_data,
+};
+
+static struct peri_clock bsc2_clk = {
+	.clk = {
+		.name = "bsc2_clk",
+		.parent = &ref_13m.clk,
+		.rate = 13 * CLOCK_1M,
+		.div = 1,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+	},
+	.data = &bsc2_data,
+};
+
+static struct peri_clock bsc3_clk = {
+	.clk = {
+		.name = "bsc3_clk",
+		.parent = &ref_13m.clk,
+		.rate = 13 * CLOCK_1M,
+		.div = 1,
+		.ops = &peri_clk_ops,
+		.ccu_clk_mgr_base = KONA_SLV_CLK_BASE_ADDR,
+	},
+	.data = &bsc3_data,
+};
+
+/* public table for registering clocks */
+struct clk_lookup arch_clk_tbl[] = {
+	/* Peripheral clocks */
+	CLK_LK(sdio1),
+	CLK_LK(sdio2),
+	CLK_LK(sdio3),
+	CLK_LK(sdio4),
+	CLK_LK(sdio1_sleep),
+	CLK_LK(sdio2_sleep),
+	CLK_LK(sdio3_sleep),
+	CLK_LK(sdio4_sleep),
+	CLK_LK(bsc1),
+	CLK_LK(bsc2),
+	CLK_LK(bsc3),
+	/* Bus clocks */
+	CLK_LK(sdio1_ahb),
+	CLK_LK(sdio2_ahb),
+	CLK_LK(sdio3_ahb),
+	CLK_LK(sdio4_ahb),
+	CLK_LK(bsc1_apb),
+	CLK_LK(bsc2_apb),
+	CLK_LK(bsc3_apb),
+};
+
+/* public array size */
+unsigned int arch_clk_tbl_array_size = ARRAY_SIZE(arch_clk_tbl);

arch/arm/cpu/armv7/bcm281xx/clk-bsc.c

@@ -0,0 +1,52 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/sysmap.h>
+#include <asm/kona-common/clk.h>
+#include "clk-core.h"
+
+/* Enable appropriate clocks for a BSC/I2C port */
+int clk_bsc_enable(void *base)
+{
+	int ret;
+	char *bscstr, *apbstr;
+
+	switch ((u32) base) {
+	case PMU_BSC_BASE_ADDR:
+		/* PMU clock is always enabled */
+		return 0;
+	case BSC1_BASE_ADDR:
+		bscstr = "bsc1_clk";
+		apbstr = "bsc1_apb_clk";
+		break;
+	case BSC2_BASE_ADDR:
+		bscstr = "bsc2_clk";
+		apbstr = "bsc2_apb_clk";
+		break;
+	case BSC3_BASE_ADDR:
+		bscstr = "bsc3_clk";
+		apbstr = "bsc3_apb_clk";
+		break;
+	default:
+		printf("%s: base 0x%p not found\n", __func__, base);
+		return -EINVAL;
+	}
+
+	/* Note that the bus clock must be enabled first */
+
+	ret = clk_get_and_enable(apbstr);
+	if (ret)
+		return ret;
+
+	ret = clk_get_and_enable(bscstr);
+	if (ret)
+		return ret;
+
+	return 0;
+}

arch/arm/cpu/armv7/bcm281xx/clk-core.c

@@ -0,0 +1,513 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+/*
+ *
+ * bcm281xx architecture clock framework
+ *
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <bitfield.h>
+#include <asm/arch/sysmap.h>
+#include <asm/kona-common/clk.h>
+#include "clk-core.h"
+
+#define CLK_WR_ACCESS_PASSWORD	0x00a5a501
+#define WR_ACCESS_OFFSET	0	/* common to all clock blocks */
+#define POLICY_CTL_GO		1	/* Load and refresh policy masks */
+#define POLICY_CTL_GO_ATL	4	/* Active Load */
+
+/* Helper function */
+int clk_get_and_enable(char *clkstr)
+{
+	int ret = 0;
+	struct clk *c;
+
+	debug("%s: %s\n", __func__, clkstr);
+
+	c = clk_get(clkstr);
+	if (c) {
+		ret = clk_enable(c);
+		if (ret)
+			return ret;
+	} else {
+		printf("%s: Couldn't find %s\n", __func__, clkstr);
+		return -EINVAL;
+	}
+	return ret;
+}
+
+/*
+ * Poll a register in a CCU's address space, returning when the
+ * specified bit in that register's value is set (or clear).  Delay
+ * a microsecond after each read of the register.  Returns true if
+ * successful, or false if we gave up trying.
+ *
+ * Caller must ensure the CCU lock is held.
+ */
+#define CLK_GATE_DELAY_USEC 2000
+static inline int wait_bit(void *base, u32 offset, u32 bit, bool want)
+{
+	unsigned int tries;
+	u32 bit_mask = 1 << bit;
+
+	for (tries = 0; tries < CLK_GATE_DELAY_USEC; tries++) {
+		u32 val;
+		bool bit_val;
+
+		val = readl(base + offset);
+		bit_val = (val & bit_mask) ? 1 : 0;
+		if (bit_val == want)
+			return 0;	/* success */
+		udelay(1);
+	}
+
+	debug("%s: timeout on addr 0x%p, waiting for bit %d to go to %d\n",
+	      __func__, base + offset, bit, want);
+
+	return -ETIMEDOUT;
+}
+
+/* Enable a peripheral clock */
+static int peri_clk_enable(struct clk *c, int enable)
+{
+	int ret = 0;
+	u32 reg;
+	struct peri_clock *peri_clk = to_peri_clk(c);
+	struct peri_clk_data *cd = peri_clk->data;
+	struct bcm_clk_gate *gate = &cd->gate;
+	void *base = (void *)c->ccu_clk_mgr_base;
+
+
+	debug("%s: %s\n", __func__, c->name);
+
+	clk_get_rate(c);	/* Make sure rate and sel are filled in */
+
+	/* enable access */
+	writel(CLK_WR_ACCESS_PASSWORD, base + WR_ACCESS_OFFSET);
+
+	if (enable) {
+		debug("%s %s set rate %lu div %lu sel %d parent %lu\n",
+		      __func__, c->name, c->rate, c->div, c->sel,
+		      c->parent->rate);
+
+		/*
+		 * clkgate - only software controllable gates are
+		 * supported by u-boot which includes all clocks
+		 * that matter. This avoids bringing in a lot of extra
+		 * complexity as done in the kernel framework.
+		 */
+		if (gate_exists(gate)) {
+			reg = readl(base + cd->gate.offset);
+			reg |= (1 << cd->gate.en_bit);
+			writel(reg, base + cd->gate.offset);
+		}
+
+		/* div and pll select */
+		if (divider_exists(&cd->div)) {
+			reg = readl(base + cd->div.offset);
+			bitfield_replace(reg, cd->div.shift, cd->div.width,
+					 c->div - 1);
+			writel(reg, base + cd->div.offset);
+		}
+
+		/* frequency selector */
+		if (selector_exists(&cd->sel)) {
+			reg = readl(base + cd->sel.offset);
+			bitfield_replace(reg, cd->sel.shift, cd->sel.width,
+					 c->sel);
+			writel(reg, base + cd->sel.offset);
+		}
+
+		/* trigger */
+		if (trigger_exists(&cd->trig)) {
+			writel((1 << cd->trig.bit), base + cd->trig.offset);
+
+			/* wait for trigger status bit to go to 0 */
+			ret = wait_bit(base, cd->trig.offset, cd->trig.bit, 0);
+			if (ret)
+				return ret;
+		}
+
+		/* wait for running (status_bit = 1) */
+		ret = wait_bit(base, cd->gate.offset, cd->gate.status_bit, 1);
+		if (ret)
+			return ret;
+	} else {
+		debug("%s disable clock %s\n", __func__, c->name);
+
+		/* clkgate */
+		reg = readl(base + cd->gate.offset);
+		reg &= ~(1 << cd->gate.en_bit);
+		writel(reg, base + cd->gate.offset);
+
+		/* wait for stop (status_bit = 0) */
+		ret = wait_bit(base, cd->gate.offset, cd->gate.status_bit, 0);
+	}
+
+	/* disable access */
+	writel(0, base + WR_ACCESS_OFFSET);
+
+	return ret;
+}
+
+/* Set the rate of a peripheral clock */
+static int peri_clk_set_rate(struct clk *c, unsigned long rate)
+{
+	int ret = 0;
+	int i;
+	unsigned long diff;
+	unsigned long new_rate = 0, div = 1;
+	struct peri_clock *peri_clk = to_peri_clk(c);
+	struct peri_clk_data *cd = peri_clk->data;
+	const char **clock;
+
+	debug("%s: %s\n", __func__, c->name);
+	diff = rate;
+
+	i = 0;
+	for (clock = cd->clocks; *clock; clock++, i++) {
+		struct refclk *ref = refclk_str_to_clk(*clock);
+		if (!ref) {
+			printf("%s: Lookup of %s failed\n", __func__, *clock);
+			return -EINVAL;
+		}
+
+		/* round to the new rate */
+		div = ref->clk.rate / rate;
+		if (div == 0)
+			div = 1;
+
+		new_rate = ref->clk.rate / div;
+
+		/* get the min diff */
+		if (abs(new_rate - rate) < diff) {
+			diff = abs(new_rate - rate);
+			c->sel = i;
+			c->parent = &ref->clk;
+			c->rate = new_rate;
+			c->div = div;
+		}
+	}
+
+	debug("%s %s set rate %lu div %lu sel %d parent %lu\n", __func__,
+	      c->name, c->rate, c->div, c->sel, c->parent->rate);
+	return ret;
+}
+
+/* Get the rate of a peripheral clock */
+static unsigned long peri_clk_get_rate(struct clk *c)
+{
+	struct peri_clock *peri_clk = to_peri_clk(c);
+	struct peri_clk_data *cd = peri_clk->data;
+	void *base = (void *)c->ccu_clk_mgr_base;
+	int div = 1;
+	const char **clock;
+	struct refclk *ref;
+	u32 reg;
+
+	debug("%s: %s\n", __func__, c->name);
+	if (selector_exists(&cd->sel)) {
+		reg = readl(base + cd->sel.offset);
+		c->sel = bitfield_extract(reg, cd->sel.shift, cd->sel.width);
+	} else {
+		/*
+		 * For peri clocks that don't have a selector, the single
+		 * reference clock will always exist at index 0.
+		 */
+		c->sel = 0;
+	}
+
+	if (divider_exists(&cd->div)) {
+		reg = readl(base + cd->div.offset);
+		div = bitfield_extract(reg, cd->div.shift, cd->div.width);
+		div += 1;
+	}
+
+	clock = cd->clocks;
+	ref = refclk_str_to_clk(clock[c->sel]);
+	if (!ref) {
+		printf("%s: Can't lookup %s\n", __func__, clock[c->sel]);
+		return 0;
+	}
+
+	c->parent = &ref->clk;
+	c->div = div;
+	c->rate = c->parent->rate / c->div;
+	debug("%s parent rate %lu div %d sel %d rate %lu\n", __func__,
+	      c->parent->rate, div, c->sel, c->rate);
+
+	return c->rate;
+}
+
+/* Peripheral clock operations */
+struct clk_ops peri_clk_ops = {
+	.enable = peri_clk_enable,
+	.set_rate = peri_clk_set_rate,
+	.get_rate = peri_clk_get_rate,
+};
+
+/* Enable a CCU clock */
+static int ccu_clk_enable(struct clk *c, int enable)
+{
+	struct ccu_clock *ccu_clk = to_ccu_clk(c);
+	void *base = (void *)c->ccu_clk_mgr_base;
+	int ret = 0;
+	u32 reg;
+
+	debug("%s: %s\n", __func__, c->name);
+	if (!enable)
+		return -EINVAL;	/* CCU clock cannot shutdown */
+
+	/* enable access */
+	writel(CLK_WR_ACCESS_PASSWORD, base + WR_ACCESS_OFFSET);
+
+	/* config enable for policy engine */
+	writel(1, base + ccu_clk->lvm_en_offset);
+
+	/* wait for bit to go to 0 */
+	ret = wait_bit(base, ccu_clk->lvm_en_offset, 0, 0);
+	if (ret)
+		return ret;
+
+	/* freq ID */
+	if (!ccu_clk->freq_bit_shift)
+		ccu_clk->freq_bit_shift = 8;
+
+	/* Set frequency id for each of the 4 policies */
+	reg = ccu_clk->freq_id |
+	    (ccu_clk->freq_id << (ccu_clk->freq_bit_shift)) |
+	    (ccu_clk->freq_id << (ccu_clk->freq_bit_shift * 2)) |
+	    (ccu_clk->freq_id << (ccu_clk->freq_bit_shift * 3));
+	writel(reg, base + ccu_clk->policy_freq_offset);
+
+	/* enable all clock mask */
+	writel(0x7fffffff, base + ccu_clk->policy0_mask_offset);
+	writel(0x7fffffff, base + ccu_clk->policy1_mask_offset);
+	writel(0x7fffffff, base + ccu_clk->policy2_mask_offset);
+	writel(0x7fffffff, base + ccu_clk->policy3_mask_offset);
+
+	if (ccu_clk->num_policy_masks == 2) {
+		writel(0x7fffffff, base + ccu_clk->policy0_mask2_offset);
+		writel(0x7fffffff, base + ccu_clk->policy1_mask2_offset);
+		writel(0x7fffffff, base + ccu_clk->policy2_mask2_offset);
+		writel(0x7fffffff, base + ccu_clk->policy3_mask2_offset);
+	}
+
+	/* start policy engine */
+	reg = readl(base + ccu_clk->policy_ctl_offset);
+	reg |= (POLICY_CTL_GO + POLICY_CTL_GO_ATL);
+	writel(reg, base + ccu_clk->policy_ctl_offset);
+
+	/* wait till started */
+	ret = wait_bit(base, ccu_clk->policy_ctl_offset, 0, 0);
+	if (ret)
+		return ret;
+
+	/* disable access */
+	writel(0, base + WR_ACCESS_OFFSET);
+
+	return ret;
+}
+
+/* Get the CCU clock rate */
+static unsigned long ccu_clk_get_rate(struct clk *c)
+{
+	struct ccu_clock *ccu_clk = to_ccu_clk(c);
+	debug("%s: %s\n", __func__, c->name);
+	c->rate = ccu_clk->freq_tbl[ccu_clk->freq_id];
+	return c->rate;
+}
+
+/* CCU clock operations */
+struct clk_ops ccu_clk_ops = {
+	.enable = ccu_clk_enable,
+	.get_rate = ccu_clk_get_rate,
+};
+
+/* Enable a bus clock */
+static int bus_clk_enable(struct clk *c, int enable)
+{
+	struct bus_clock *bus_clk = to_bus_clk(c);
+	struct bus_clk_data *cd = bus_clk->data;
+	void *base = (void *)c->ccu_clk_mgr_base;
+	int ret = 0;
+	u32 reg;
+
+	debug("%s: %s\n", __func__, c->name);
+	/* enable access */
+	writel(CLK_WR_ACCESS_PASSWORD, base + WR_ACCESS_OFFSET);
+
+	/* enable gating */
+	reg = readl(base + cd->gate.offset);
+	if (!!(reg & (1 << cd->gate.status_bit)) == !!enable)
+		debug("%s already %s\n", c->name,
+		      enable ? "enabled" : "disabled");
+	else {
+		int want = (enable) ? 1 : 0;
+		reg |= (1 << cd->gate.hw_sw_sel_bit);
+
+		if (enable)
+			reg |= (1 << cd->gate.en_bit);
+		else
+			reg &= ~(1 << cd->gate.en_bit);
+
+		writel(reg, base + cd->gate.offset);
+		ret = wait_bit(base, cd->gate.offset, cd->gate.status_bit,
+			       want);
+		if (ret)
+			return ret;
+	}
+
+	/* disable access */
+	writel(0, base + WR_ACCESS_OFFSET);
+
+	return ret;
+}
+
+/* Get the rate of a bus clock */
+static unsigned long bus_clk_get_rate(struct clk *c)
+{
+	struct bus_clock *bus_clk = to_bus_clk(c);
+	struct ccu_clock *ccu_clk;
+
+	debug("%s: %s\n", __func__, c->name);
+	ccu_clk = to_ccu_clk(c->parent);
+
+	c->rate = bus_clk->freq_tbl[ccu_clk->freq_id];
+	c->div = ccu_clk->freq_tbl[ccu_clk->freq_id] / c->rate;
+	return c->rate;
+}
+
+/* Bus clock operations */
+struct clk_ops bus_clk_ops = {
+	.enable = bus_clk_enable,
+	.get_rate = bus_clk_get_rate,
+};
+
+/* Enable a reference clock */
+static int ref_clk_enable(struct clk *c, int enable)
+{
+	debug("%s: %s\n", __func__, c->name);
+	return 0;
+}
+
+/* Reference clock operations */
+struct clk_ops ref_clk_ops = {
+	.enable = ref_clk_enable,
+};
+
+/*
+ * clk.h implementation follows
+ */
+
+/* Initialize the clock framework */
+int clk_init(void)
+{
+	debug("%s:\n", __func__);
+	return 0;
+}
+
+/* Get a clock handle, give a name string */
+struct clk *clk_get(const char *con_id)
+{
+	int i;
+	struct clk_lookup *clk_tblp;
+
+	debug("%s: %s\n", __func__, con_id);
+
+	clk_tblp = arch_clk_tbl;
+	for (i = 0; i < arch_clk_tbl_array_size; i++, clk_tblp++) {
+		if (clk_tblp->con_id) {
+			if (!con_id || strcmp(clk_tblp->con_id, con_id))
+				continue;
+			return clk_tblp->clk;
+		}
+	}
+	return NULL;
+}
+
+/* Enable a clock */
+int clk_enable(struct clk *c)
+{
+	int ret = 0;
+
+	debug("%s: %s\n", __func__, c->name);
+	if (!c->ops || !c->ops->enable)
+		return -1;
+
+	/* enable parent clock first */
+	if (c->parent)
+		ret = clk_enable(c->parent);
+
+	if (ret)
+		return ret;
+
+	if (!c->use_cnt) {
+		c->use_cnt++;
+		ret = c->ops->enable(c, 1);
+	}
+
+	return ret;
+}
+
+/* Disable a clock */
+void clk_disable(struct clk *c)
+{
+	debug("%s: %s\n", __func__, c->name);
+	if (!c->ops || !c->ops->enable)
+		return;
+
+	if (c->use_cnt) {
+		c->use_cnt--;
+		c->ops->enable(c, 0);
+	}
+
+	/* disable parent */
+	if (c->parent)
+		clk_disable(c->parent);
+}
+
+/* Get the clock rate */
+unsigned long clk_get_rate(struct clk *c)
+{
+	unsigned long rate;
+
+	debug("%s: %s\n", __func__, c->name);
+	if (!c || !c->ops || !c->ops->get_rate)
+		return 0;
+
+	rate = c->ops->get_rate(c);
+	debug("%s: rate = %ld\n", __func__, rate);
+	return rate;
+}
+
+/* Set the clock rate */
+int clk_set_rate(struct clk *c, unsigned long rate)
+{
+	int ret;
+
+	debug("%s: %s rate=%ld\n", __func__, c->name, rate);
+	if (!c || !c->ops || !c->ops->set_rate)
+		return -EINVAL;
+
+	if (c->use_cnt)
+		return -EINVAL;
+
+	ret = c->ops->set_rate(c, rate);
+
+	return ret;
+}
+
+/* Not required for this arch */
+/*
+long clk_round_rate(struct clk *clk, unsigned long rate);
+int clk_set_parent(struct clk *clk, struct clk *parent);
+struct clk *clk_get_parent(struct clk *clk);
+*/

arch/arm/cpu/armv7/bcm281xx/clk-core.h

@@ -0,0 +1,495 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <linux/stddef.h>
+
+#ifdef CONFIG_CLK_DEBUG
+#undef writel
+#undef readl
+static inline void writel(u32 val, void *addr)
+{
+	printf("Write [0x%p] = 0x%08x\n", addr, val);
+	*(u32 *)addr = val;
+}
+
+static inline u32 readl(void *addr)
+{
+	u32 val = *(u32 *)addr;
+	printf("Read  [0x%p] = 0x%08x\n", addr, val);
+	return val;
+}
+#endif
+
+struct clk;
+
+struct clk_lookup {
+	const char *dev_id;
+	const char *con_id;
+	struct clk *clk;
+};
+
+extern struct clk_lookup arch_clk_tbl[];
+extern unsigned int arch_clk_tbl_array_size;
+
+/**
+ * struct clk_ops - standard clock operations
+ * @enable: enable/disable clock, see clk_enable() and clk_disable()
+ * @set_rate: set the clock rate, see clk_set_rate().
+ * @get_rate: get the clock rate, see clk_get_rate().
+ * @round_rate: round a given clock rate, see clk_round_rate().
+ * @set_parent: set the clock's parent, see clk_set_parent().
+ *
+ * Group the common clock implementations together so that we
+ * don't have to keep setting the same fiels again. We leave
+ * enable in struct clk.
+ *
+ */
+struct clk_ops {
+	int (*enable) (struct clk *c, int enable);
+	int (*set_rate) (struct clk *c, unsigned long rate);
+	unsigned long (*get_rate) (struct clk *c);
+	unsigned long (*round_rate) (struct clk *c, unsigned long rate);
+	int (*set_parent) (struct clk *c, struct clk *parent);
+};
+
+struct clk {
+	struct clk *parent;
+	const char *name;
+	int use_cnt;
+	unsigned long rate;	/* in HZ */
+
+	/* programmable divider. 0 means fixed ratio to parent clock */
+	unsigned long div;
+
+	struct clk_src *src;
+	struct clk_ops *ops;
+
+	unsigned long ccu_clk_mgr_base;
+	int sel;
+};
+
+struct refclk *refclk_str_to_clk(const char *name);
+
+#define U8_MAX	((u8)~0U)
+#define U32_MAX	((u32)~0U)
+#define U64_MAX	((u64)~0U)
+
+/* The common clock framework uses u8 to represent a parent index */
+#define PARENT_COUNT_MAX	((u32)U8_MAX)
+
+#define BAD_CLK_INDEX		U8_MAX	/* Can't ever be valid */
+#define BAD_CLK_NAME		((const char *)-1)
+
+#define BAD_SCALED_DIV_VALUE	U64_MAX
+
+/*
+ * Utility macros for object flag management.  If possible, flags
+ * should be defined such that 0 is the desired default value.
+ */
+#define FLAG(type, flag)		BCM_CLK_ ## type ## _FLAGS_ ## flag
+#define FLAG_SET(obj, type, flag)	((obj)->flags |= FLAG(type, flag))
+#define FLAG_CLEAR(obj, type, flag)	((obj)->flags &= ~(FLAG(type, flag)))
+#define FLAG_FLIP(obj, type, flag)	((obj)->flags ^= FLAG(type, flag))
+#define FLAG_TEST(obj, type, flag)	(!!((obj)->flags & FLAG(type, flag)))
+
+/* Clock field state tests */
+
+#define gate_exists(gate)		FLAG_TEST(gate, GATE, EXISTS)
+#define gate_is_enabled(gate)		FLAG_TEST(gate, GATE, ENABLED)
+#define gate_is_hw_controllable(gate)	FLAG_TEST(gate, GATE, HW)
+#define gate_is_sw_controllable(gate)	FLAG_TEST(gate, GATE, SW)
+#define gate_is_sw_managed(gate)	FLAG_TEST(gate, GATE, SW_MANAGED)
+#define gate_is_no_disable(gate)	FLAG_TEST(gate, GATE, NO_DISABLE)
+
+#define gate_flip_enabled(gate)		FLAG_FLIP(gate, GATE, ENABLED)
+
+#define divider_exists(div)		FLAG_TEST(div, DIV, EXISTS)
+#define divider_is_fixed(div)		FLAG_TEST(div, DIV, FIXED)
+#define divider_has_fraction(div)	(!divider_is_fixed(div) && \
+						(div)->frac_width > 0)
+
+#define selector_exists(sel)		((sel)->width != 0)
+#define trigger_exists(trig)		FLAG_TEST(trig, TRIG, EXISTS)
+
+/* Clock type, used to tell common block what it's part of */
+enum bcm_clk_type {
+	bcm_clk_none,		/* undefined clock type */
+	bcm_clk_bus,
+	bcm_clk_core,
+	bcm_clk_peri
+};
+
+/*
+ * Gating control and status is managed by a 32-bit gate register.
+ *
+ * There are several types of gating available:
+ * - (no gate)
+ *     A clock with no gate is assumed to be always enabled.
+ * - hardware-only gating (auto-gating)
+ *     Enabling or disabling clocks with this type of gate is
+ *     managed automatically by the hardware.  Such clocks can be
+ *     considered by the software to be enabled.  The current status
+ *     of auto-gated clocks can be read from the gate status bit.
+ * - software-only gating
+ *     Auto-gating is not available for this type of clock.
+ *     Instead, software manages whether it's enabled by setting or
+ *     clearing the enable bit.  The current gate status of a gate
+ *     under software control can be read from the gate status bit.
+ *     To ensure a change to the gating status is complete, the
+ *     status bit can be polled to verify that the gate has entered
+ *     the desired state.
+ * - selectable hardware or software gating
+ *     Gating for this type of clock can be configured to be either
+ *     under software or hardware control.  Which type is in use is
+ *     determined by the hw_sw_sel bit of the gate register.
+ */
+struct bcm_clk_gate {
+	u32 offset;		/* gate register offset */
+	u32 status_bit;		/* 0: gate is disabled; 0: gatge is enabled */
+	u32 en_bit;		/* 0: disable; 1: enable */
+	u32 hw_sw_sel_bit;	/* 0: hardware gating; 1: software gating */
+	u32 flags;		/* BCM_CLK_GATE_FLAGS_* below */
+};
+
+/*
+ * Gate flags:
+ *   HW         means this gate can be auto-gated
+ *   SW         means the state of this gate can be software controlled
+ *   NO_DISABLE means this gate is (only) enabled if under software control
+ *   SW_MANAGED means the status of this gate is under software control
+ *   ENABLED    means this software-managed gate is *supposed* to be enabled
+ */
+#define BCM_CLK_GATE_FLAGS_EXISTS	((u32)1 << 0)	/* Gate is valid */
+#define BCM_CLK_GATE_FLAGS_HW		((u32)1 << 1)	/* Can auto-gate */
+#define BCM_CLK_GATE_FLAGS_SW		((u32)1 << 2)	/* Software control */
+#define BCM_CLK_GATE_FLAGS_NO_DISABLE	((u32)1 << 3)	/* HW or enabled */
+#define BCM_CLK_GATE_FLAGS_SW_MANAGED	((u32)1 << 4)	/* SW now in control */
+#define BCM_CLK_GATE_FLAGS_ENABLED	((u32)1 << 5)	/* If SW_MANAGED */
+
+/*
+ * Gate initialization macros.
+ *
+ * Any gate initially under software control will be enabled.
+ */
+
+/* A hardware/software gate initially under software control */
+#define HW_SW_GATE(_offset, _status_bit, _en_bit, _hw_sw_sel_bit)	\
+	{								\
+		.offset = (_offset),					\
+		.status_bit = (_status_bit),				\
+		.en_bit = (_en_bit),					\
+		.hw_sw_sel_bit = (_hw_sw_sel_bit),			\
+		.flags = FLAG(GATE, HW)|FLAG(GATE, SW)|			\
+			FLAG(GATE, SW_MANAGED)|FLAG(GATE, ENABLED)|	\
+			FLAG(GATE, EXISTS),				\
+	}
+
+/* A hardware/software gate initially under hardware control */
+#define HW_SW_GATE_AUTO(_offset, _status_bit, _en_bit, _hw_sw_sel_bit)	\
+	{								\
+		.offset = (_offset),					\
+		.status_bit = (_status_bit),				\
+		.en_bit = (_en_bit),					\
+		.hw_sw_sel_bit = (_hw_sw_sel_bit),			\
+		.flags = FLAG(GATE, HW)|FLAG(GATE, SW)|			\
+			FLAG(GATE, EXISTS),				\
+	}
+
+/* A hardware-or-enabled gate (enabled if not under hardware control) */
+#define HW_ENABLE_GATE(_offset, _status_bit, _en_bit, _hw_sw_sel_bit)	\
+	{								\
+		.offset = (_offset),					\
+		.status_bit = (_status_bit),				\
+		.en_bit = (_en_bit),					\
+		.hw_sw_sel_bit = (_hw_sw_sel_bit),			\
+		.flags = FLAG(GATE, HW)|FLAG(GATE, SW)|			\
+			FLAG(GATE, NO_DISABLE)|FLAG(GATE, EXISTS),	\
+	}
+
+/* A software-only gate */
+#define SW_ONLY_GATE(_offset, _status_bit, _en_bit)			\
+	{								\
+		.offset = (_offset),					\
+		.status_bit = (_status_bit),				\
+		.en_bit = (_en_bit),					\
+		.flags = FLAG(GATE, SW)|FLAG(GATE, SW_MANAGED)|		\
+			FLAG(GATE, ENABLED)|FLAG(GATE, EXISTS),		\
+	}
+
+/* A hardware-only gate */
+#define HW_ONLY_GATE(_offset, _status_bit)				\
+	{								\
+		.offset = (_offset),					\
+		.status_bit = (_status_bit),				\
+		.flags = FLAG(GATE, HW)|FLAG(GATE, EXISTS),		\
+	}
+
+/*
+ * Each clock can have zero, one, or two dividers which change the
+ * output rate of the clock.  Each divider can be either fixed or
+ * variable.  If there are two dividers, they are the "pre-divider"
+ * and the "regular" or "downstream" divider.  If there is only one,
+ * there is no pre-divider.
+ *
+ * A fixed divider is any non-zero (positive) value, and it
+ * indicates how the input rate is affected by the divider.
+ *
+ * The value of a variable divider is maintained in a sub-field of a
+ * 32-bit divider register.  The position of the field in the
+ * register is defined by its offset and width.  The value recorded
+ * in this field is always 1 less than the value it represents.
+ *
+ * In addition, a variable divider can indicate that some subset
+ * of its bits represent a "fractional" part of the divider.  Such
+ * bits comprise the low-order portion of the divider field, and can
+ * be viewed as representing the portion of the divider that lies to
+ * the right of the decimal point.  Most variable dividers have zero
+ * fractional bits.  Variable dividers with non-zero fraction width
+ * still record a value 1 less than the value they represent; the
+ * added 1 does *not* affect the low-order bit in this case, it
+ * affects the bits above the fractional part only.  (Often in this
+ * code a divider field value is distinguished from the value it
+ * represents by referring to the latter as a "divisor".)
+ *
+ * In order to avoid dealing with fractions, divider arithmetic is
+ * performed using "scaled" values.  A scaled value is one that's
+ * been left-shifted by the fractional width of a divider.  Dividing
+ * a scaled value by a scaled divisor produces the desired quotient
+ * without loss of precision and without any other special handling
+ * for fractions.
+ *
+ * The recorded value of a variable divider can be modified.  To
+ * modify either divider (or both), a clock must be enabled (i.e.,
+ * using its gate).  In addition, a trigger register (described
+ * below) must be used to commit the change, and polled to verify
+ * the change is complete.
+ */
+struct bcm_clk_div {
+	union {
+		struct {	/* variable divider */
+			u32 offset;	/* divider register offset */
+			u32 shift;	/* field shift */
+			u32 width;	/* field width */
+			u32 frac_width;	/* field fraction width */
+
+			u64 scaled_div;	/* scaled divider value */
+		};
+		u32 fixed;	/* non-zero fixed divider value */
+	};
+	u32 flags;		/* BCM_CLK_DIV_FLAGS_* below */
+};
+
+/*
+ * Divider flags:
+ *   EXISTS means this divider exists
+ *   FIXED means it is a fixed-rate divider
+ */
+#define BCM_CLK_DIV_FLAGS_EXISTS	((u32)1 << 0)	/* Divider is valid */
+#define BCM_CLK_DIV_FLAGS_FIXED		((u32)1 << 1)	/* Fixed-value */
+
+/* Divider initialization macros */
+
+/* A fixed (non-zero) divider */
+#define FIXED_DIVIDER(_value)						\
+	{								\
+		.fixed = (_value),					\
+		.flags = FLAG(DIV, EXISTS)|FLAG(DIV, FIXED),		\
+	}
+
+/* A divider with an integral divisor */
+#define DIVIDER(_offset, _shift, _width)				\
+	{								\
+		.offset = (_offset),					\
+		.shift = (_shift),					\
+		.width = (_width),					\
+		.scaled_div = BAD_SCALED_DIV_VALUE,			\
+		.flags = FLAG(DIV, EXISTS),				\
+	}
+
+/* A divider whose divisor has an integer and fractional part */
+#define FRAC_DIVIDER(_offset, _shift, _width, _frac_width)		\
+	{								\
+		.offset = (_offset),					\
+		.shift = (_shift),					\
+		.width = (_width),					\
+		.frac_width = (_frac_width),				\
+		.scaled_div = BAD_SCALED_DIV_VALUE,			\
+		.flags = FLAG(DIV, EXISTS),				\
+	}
+
+/*
+ * Clocks may have multiple "parent" clocks.  If there is more than
+ * one, a selector must be specified to define which of the parent
+ * clocks is currently in use.  The selected clock is indicated in a
+ * sub-field of a 32-bit selector register.  The range of
+ * representable selector values typically exceeds the number of
+ * available parent clocks.  Occasionally the reset value of a
+ * selector field is explicitly set to a (specific) value that does
+ * not correspond to a defined input clock.
+ *
+ * We register all known parent clocks with the common clock code
+ * using a packed array (i.e., no empty slots) of (parent) clock
+ * names, and refer to them later using indexes into that array.
+ * We maintain an array of selector values indexed by common clock
+ * index values in order to map between these common clock indexes
+ * and the selector values used by the hardware.
+ *
+ * Like dividers, a selector can be modified, but to do so a clock
+ * must be enabled, and a trigger must be used to commit the change.
+ */
+struct bcm_clk_sel {
+	u32 offset;		/* selector register offset */
+	u32 shift;		/* field shift */
+	u32 width;		/* field width */
+
+	u32 parent_count;	/* number of entries in parent_sel[] */
+	u32 *parent_sel;	/* array of parent selector values */
+	u8 clk_index;		/* current selected index in parent_sel[] */
+};
+
+/* Selector initialization macro */
+#define SELECTOR(_offset, _shift, _width)				\
+	{								\
+		.offset = (_offset),					\
+		.shift = (_shift),					\
+		.width = (_width),					\
+		.clk_index = BAD_CLK_INDEX,				\
+	}
+
+/*
+ * Making changes to a variable divider or a selector for a clock
+ * requires the use of a trigger.  A trigger is defined by a single
+ * bit within a register.  To signal a change, a 1 is written into
+ * that bit.  To determine when the change has been completed, that
+ * trigger bit is polled; the read value will be 1 while the change
+ * is in progress, and 0 when it is complete.
+ *
+ * Occasionally a clock will have more than one trigger.  In this
+ * case, the "pre-trigger" will be used when changing a clock's
+ * selector and/or its pre-divider.
+ */
+struct bcm_clk_trig {
+	u32 offset;		/* trigger register offset */
+	u32 bit;		/* trigger bit */
+	u32 flags;		/* BCM_CLK_TRIG_FLAGS_* below */
+};
+
+/*
+ * Trigger flags:
+ *   EXISTS means this trigger exists
+ */
+#define BCM_CLK_TRIG_FLAGS_EXISTS	((u32)1 << 0)	/* Trigger is valid */
+
+/* Trigger initialization macro */
+#define TRIGGER(_offset, _bit)						\
+	{								\
+		.offset = (_offset),					\
+		.bit = (_bit),						\
+		.flags = FLAG(TRIG, EXISTS),				\
+	}
+
+struct bus_clk_data {
+	struct bcm_clk_gate gate;
+};
+
+struct core_clk_data {
+	struct bcm_clk_gate gate;
+};
+
+struct peri_clk_data {
+	struct bcm_clk_gate gate;
+	struct bcm_clk_trig pre_trig;
+	struct bcm_clk_div pre_div;
+	struct bcm_clk_trig trig;
+	struct bcm_clk_div div;
+	struct bcm_clk_sel sel;
+	const char *clocks[];	/* must be last; use CLOCKS() to declare */
+};
+#define CLOCKS(...)	{ __VA_ARGS__, NULL, }
+#define NO_CLOCKS	{ NULL, }	/* Must use of no parent clocks */
+
+struct refclk {
+	struct clk clk;
+};
+
+struct peri_clock {
+	struct clk clk;
+	struct peri_clk_data *data;
+};
+
+struct ccu_clock {
+	struct clk clk;
+
+	int num_policy_masks;
+	unsigned long policy_freq_offset;
+	int freq_bit_shift;	/* 8 for most CCUs */
+	unsigned long policy_ctl_offset;
+	unsigned long policy0_mask_offset;
+	unsigned long policy1_mask_offset;
+	unsigned long policy2_mask_offset;
+	unsigned long policy3_mask_offset;
+	unsigned long policy0_mask2_offset;
+	unsigned long policy1_mask2_offset;
+	unsigned long policy2_mask2_offset;
+	unsigned long policy3_mask2_offset;
+	unsigned long lvm_en_offset;
+
+	int freq_id;
+	unsigned long *freq_tbl;
+};
+
+struct bus_clock {
+	struct clk clk;
+	struct bus_clk_data *data;
+	unsigned long *freq_tbl;
+};
+
+struct ref_clock {
+	struct clk clk;
+};
+
+static inline int is_same_clock(struct clk *a, struct clk *b)
+{
+	return (a == b);
+}
+
+#define to_clk(p) (&((p)->clk))
+#define name_to_clk(name) (&((name##_clk).clk))
+/* declare a struct clk_lookup */
+#define CLK_LK(name) \
+{.con_id = __stringify(name##_clk), .clk = name_to_clk(name),}
+
+static inline struct refclk *to_refclk(struct clk *clock)
+{
+	return container_of(clock, struct refclk, clk);
+}
+
+static inline struct peri_clock *to_peri_clk(struct clk *clock)
+{
+	return container_of(clock, struct peri_clock, clk);
+}
+
+static inline struct ccu_clock *to_ccu_clk(struct clk *clock)
+{
+	return container_of(clock, struct ccu_clock, clk);
+}
+
+static inline struct bus_clock *to_bus_clk(struct clk *clock)
+{
+	return container_of(clock, struct bus_clock, clk);
+}
+
+static inline struct ref_clock *to_ref_clk(struct clk *clock)
+{
+	return container_of(clock, struct ref_clock, clk);
+}
+
+extern struct clk_ops peri_clk_ops;
+extern struct clk_ops ccu_clk_ops;
+extern struct clk_ops bus_clk_ops;
+extern struct clk_ops ref_clk_ops;
+
+extern int clk_get_and_enable(char *clkstr);

arch/arm/cpu/armv7/bcm281xx/clk-sdio.c

@@ -0,0 +1,73 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/errno.h>
+#include <asm/arch/sysmap.h>
+#include <asm/kona-common/clk.h>
+#include "clk-core.h"
+
+/* Enable appropriate clocks for an SDIO port */
+int clk_sdio_enable(void *base, u32 rate, u32 *actual_ratep)
+{
+	int ret;
+	struct clk *c;
+
+	char *clkstr;
+	char *slpstr;
+	char *ahbstr;
+
+	switch ((u32) base) {
+	case CONFIG_SYS_SDIO_BASE0:
+		clkstr = CONFIG_SYS_SDIO0 "_clk";
+		ahbstr = CONFIG_SYS_SDIO0 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO0 "_sleep_clk";
+		break;
+	case CONFIG_SYS_SDIO_BASE1:
+		clkstr = CONFIG_SYS_SDIO1 "_clk";
+		ahbstr = CONFIG_SYS_SDIO1 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO1 "_sleep_clk";
+		break;
+	case CONFIG_SYS_SDIO_BASE2:
+		clkstr = CONFIG_SYS_SDIO2 "_clk";
+		ahbstr = CONFIG_SYS_SDIO2 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO2 "_sleep_clk";
+		break;
+	case CONFIG_SYS_SDIO_BASE3:
+		clkstr = CONFIG_SYS_SDIO3 "_clk";
+		ahbstr = CONFIG_SYS_SDIO3 "_ahb_clk";
+		slpstr = CONFIG_SYS_SDIO3 "_sleep_clk";
+		break;
+	default:
+		printf("%s: base 0x%p not found\n", __func__, base);
+		return -EINVAL;
+	}
+
+	ret = clk_get_and_enable(ahbstr);
+	if (ret)
+		return ret;
+
+	ret = clk_get_and_enable(slpstr);
+	if (ret)
+		return ret;
+
+	c = clk_get(clkstr);
+	if (c) {
+		ret = clk_set_rate(c, rate);
+		if (ret)
+			return ret;
+
+		ret = clk_enable(c);
+		if (ret)
+			return ret;
+	} else {
+		printf("%s: Couldn't find %s\n", __func__, clkstr);
+		return -EINVAL;
+	}
+	*actual_ratep = rate;
+	return 0;
+}

arch/arm/cpu/armv7/bcm281xx/reset.c

@@ -0,0 +1,27 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <asm/io.h>
+#include <asm/arch/sysmap.h>
+
+#define EN_MASK		0x08000000	/* Enable timer */
+#define SRSTEN_MASK	0x04000000	/* Enable soft reset */
+#define CLKS_SHIFT	20		/* Clock period shift */
+#define LD_SHIFT	0		/* Reload value shift */
+
+void reset_cpu(ulong ignored)
+{
+	/*
+	 * Set WD enable, RST enable,
+	 * 3.9 msec clock period (8), reload value (8*3.9ms)
+	 */
+	u32 reg = EN_MASK + SRSTEN_MASK + (8 << CLKS_SHIFT) + (8 << LD_SHIFT);
+	writel(reg, SECWD2_BASE_ADDR);
+
+	while (1)
+		;	/* loop forever till reset */
+}

arch/arm/cpu/armv7/config.mk

@@ -10,24 +10,9 @@
 PF_CPPFLAGS_ARMV7 := $(call cc-option, -march=armv7-a, -march=armv5)
 PLATFORM_CPPFLAGS += $(PF_CPPFLAGS_ARMV7)
 
-# =========================================================================
-#
-# Supply options according to compiler version
-#
-# =========================================================================
-PF_RELFLAGS_SLB_AT := $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))
-PLATFORM_RELFLAGS += $(PF_RELFLAGS_SLB_AT)
-
-# SEE README.arm-unaligned-accesses
+# On supported platforms we set the bit which causes us to trap on unaligned
+# memory access.  This is the opposite of what the compiler expects to be
+# the default so we must pass in -mno-unaligned-access so that it is aware
+# of our decision.
 PF_NO_UNALIGNED := $(call cc-option, -mno-unaligned-access,)
-PLATFORM_NO_UNALIGNED := $(PF_NO_UNALIGNED)
-
-ifneq ($(CONFIG_IMX_CONFIG),)
-ifdef CONFIG_SPL
-ifdef CONFIG_SPL_BUILD
-ALL-y	+= $(OBJTREE)/SPL
-endif
-else
-ALL-y	+= $(obj)u-boot.imx
-endif
-endif
+PLATFORM_CPPFLAGS += $(PF_NO_UNALIGNED)

arch/arm/cpu/armv7/exynos/clock.c

@@ -26,7 +26,7 @@ struct clk_bit_info {
 };
 
 /* src_bit div_bit prediv_bit */
-static struct clk_bit_info clk_bit_info[PERIPH_ID_COUNT] = {
+static struct clk_bit_info clk_bit_info[] = {
 	{0,	0,	-1},
 	{4,	4,	-1},
 	{8,	8,	-1},
@@ -870,7 +870,6 @@ static void exynos4_set_mmc_clk(int dev_index, unsigned int div)
 	struct exynos4_clock *clk =
 		(struct exynos4_clock *)samsung_get_base_clock();
 	unsigned int addr;
-	unsigned int val;
 
 	/*
 	 * CLK_DIV_FSYS1
@@ -890,10 +889,8 @@ static void exynos4_set_mmc_clk(int dev_index, unsigned int div)
 		dev_index -= 2;
 	}
 
-	val = readl(addr);
-	val &= ~(0xff << ((dev_index << 4) + 8));
-	val |= (div & 0xff) << ((dev_index << 4) + 8);
-	writel(val, addr);
+	clrsetbits_le32(addr, 0xff << ((dev_index << 4) + 8),
+			(div & 0xff) << ((dev_index << 4) + 8));
 }
 
 /* exynos4x12: set the mmc clock */
@@ -902,7 +899,6 @@ static void exynos4x12_set_mmc_clk(int dev_index, unsigned int div)
 	struct exynos4x12_clock *clk =
 		(struct exynos4x12_clock *)samsung_get_base_clock();
 	unsigned int addr;
-	unsigned int val;
 
 	/*
 	 * CLK_DIV_FSYS1
@@ -917,10 +913,8 @@ static void exynos4x12_set_mmc_clk(int dev_index, unsigned int div)
 		dev_index -= 2;
 	}
 
-	val = readl(addr);
-	val &= ~(0xff << ((dev_index << 4) + 8));
-	val |= (div & 0xff) << ((dev_index << 4) + 8);
-	writel(val, addr);
+	clrsetbits_le32(addr, 0xff << ((dev_index << 4) + 8),
+			(div & 0xff) << ((dev_index << 4) + 8));
 }
 
 /* exynos5: set the mmc clock */
@@ -929,7 +923,6 @@ static void exynos5_set_mmc_clk(int dev_index, unsigned int div)
 	struct exynos5_clock *clk =
 		(struct exynos5_clock *)samsung_get_base_clock();
 	unsigned int addr;
-	unsigned int val;
 
 	/*
 	 * CLK_DIV_FSYS1
@@ -944,10 +937,8 @@ static void exynos5_set_mmc_clk(int dev_index, unsigned int div)
 		dev_index -= 2;
 	}
 
-	val = readl(addr);
-	val &= ~(0xff << ((dev_index << 4) + 8));
-	val |= (div & 0xff) << ((dev_index << 4) + 8);
-	writel(val, addr);
+	clrsetbits_le32(addr, 0xff << ((dev_index << 4) + 8),
+			(div & 0xff) << ((dev_index << 4) + 8));
 }
 
 /* exynos5: set the mmc clock */
@@ -956,7 +947,7 @@ static void exynos5420_set_mmc_clk(int dev_index, unsigned int div)
 	struct exynos5420_clock *clk =
 		(struct exynos5420_clock *)samsung_get_base_clock();
 	unsigned int addr;
-	unsigned int val, shift;
+	unsigned int shift;
 
 	/*
 	 * CLK_DIV_FSYS1
@@ -967,10 +958,7 @@ static void exynos5420_set_mmc_clk(int dev_index, unsigned int div)
 	addr = (unsigned int)&clk->div_fsys1;
 	shift = dev_index * 10;
 
-	val = readl(addr);
-	val &= ~(0x3ff << shift);
-	val |= (div & 0x3ff) << shift;
-	writel(val, addr);
+	clrsetbits_le32(addr, 0x3ff << shift, (div & 0x3ff) << shift);
 }
 
 /* get_lcd_clk: return lcd clock frequency */
@@ -1061,7 +1049,6 @@ void exynos4_set_lcd_clk(void)
 {
 	struct exynos4_clock *clk =
 	    (struct exynos4_clock *)samsung_get_base_clock();
-	unsigned int cfg = 0;
 
 	/*
 	 * CLK_GATE_BLOCK
@@ -1073,9 +1060,7 @@ void exynos4_set_lcd_clk(void)
 	 * CLK_LCD1	[5]
 	 * CLK_GPS	[7]
 	 */
-	cfg = readl(&clk->gate_block);
-	cfg |= 1 << 4;
-	writel(cfg, &clk->gate_block);
+	setbits_le32(&clk->gate_block, 1 << 4);
 
 	/*
 	 * CLK_SRC_LCD0
@@ -1085,10 +1070,7 @@ void exynos4_set_lcd_clk(void)
 	 * MIPI0_SEL		[12:15]
 	 * set lcd0 src clock 0x6: SCLK_MPLL
 	 */
-	cfg = readl(&clk->src_lcd0);
-	cfg &= ~(0xf);
-	cfg |= 0x6;
-	writel(cfg, &clk->src_lcd0);
+	clrsetbits_le32(&clk->src_lcd0, 0xf, 0x6);
 
 	/*
 	 * CLK_GATE_IP_LCD0
@@ -1100,9 +1082,7 @@ void exynos4_set_lcd_clk(void)
 	 * CLK_PPMULCD0		[5]
 	 * Gating all clocks for FIMD0
 	 */
-	cfg = readl(&clk->gate_ip_lcd0);
-	cfg |= 1 << 0;
-	writel(cfg, &clk->gate_ip_lcd0);
+	setbits_le32(&clk->gate_ip_lcd0, 1 << 0);
 
 	/*
 	 * CLK_DIV_LCD0
@@ -1114,16 +1094,13 @@ void exynos4_set_lcd_clk(void)
 	 * MIPI0_PRE_RATIO	[23:20]
 	 * set fimd ratio
 	 */
-	cfg &= ~(0xf);
-	cfg |= 0x1;
-	writel(cfg, &clk->div_lcd0);
+	clrsetbits_le32(&clk->div_lcd0, 0xf, 0x1);
 }
 
 void exynos5_set_lcd_clk(void)
 {
 	struct exynos5_clock *clk =
 	    (struct exynos5_clock *)samsung_get_base_clock();
-	unsigned int cfg = 0;
 
 	/*
 	 * CLK_GATE_BLOCK
@@ -1135,9 +1112,7 @@ void exynos5_set_lcd_clk(void)
 	 * CLK_LCD1	[5]
 	 * CLK_GPS	[7]
 	 */
-	cfg = readl(&clk->gate_block);
-	cfg |= 1 << 4;
-	writel(cfg, &clk->gate_block);
+	setbits_le32(&clk->gate_block, 1 << 4);
 
 	/*
 	 * CLK_SRC_LCD0
@@ -1147,10 +1122,7 @@ void exynos5_set_lcd_clk(void)
 	 * MIPI0_SEL		[12:15]
 	 * set lcd0 src clock 0x6: SCLK_MPLL
 	 */
-	cfg = readl(&clk->src_disp1_0);
-	cfg &= ~(0xf);
-	cfg |= 0x6;
-	writel(cfg, &clk->src_disp1_0);
+	clrsetbits_le32(&clk->src_disp1_0, 0xf, 0x6);
 
 	/*
 	 * CLK_GATE_IP_LCD0
@@ -1162,9 +1134,7 @@ void exynos5_set_lcd_clk(void)
 	 * CLK_PPMULCD0		[5]
 	 * Gating all clocks for FIMD0
 	 */
-	cfg = readl(&clk->gate_ip_disp1);
-	cfg |= 1 << 0;
-	writel(cfg, &clk->gate_ip_disp1);
+	setbits_le32(&clk->gate_ip_disp1, 1 << 0);
 
 	/*
 	 * CLK_DIV_LCD0
@@ -1176,16 +1146,13 @@ void exynos5_set_lcd_clk(void)
 	 * MIPI0_PRE_RATIO	[23:20]
 	 * set fimd ratio
 	 */
-	cfg &= ~(0xf);
-	cfg |= 0x0;
-	writel(cfg, &clk->div_disp1_0);
+	clrsetbits_le32(&clk->div_disp1_0, 0xf, 0x0);
 }
 
 void exynos4_set_mipi_clk(void)
 {
 	struct exynos4_clock *clk =
 	    (struct exynos4_clock *)samsung_get_base_clock();
-	unsigned int cfg = 0;
 
 	/*
 	 * CLK_SRC_LCD0
@@ -1195,10 +1162,7 @@ void exynos4_set_mipi_clk(void)
 	 * MIPI0_SEL		[12:15]
 	 * set mipi0 src clock 0x6: SCLK_MPLL
 	 */
-	cfg = readl(&clk->src_lcd0);
-	cfg &= ~(0xf << 12);
-	cfg |= (0x6 << 12);
-	writel(cfg, &clk->src_lcd0);
+	clrsetbits_le32(&clk->src_lcd0, 0xf << 12, 0x6 << 12);
 
 	/*
 	 * CLK_SRC_MASK_LCD0
@@ -1208,9 +1172,7 @@ void exynos4_set_mipi_clk(void)
 	 * MIPI0_MASK		[12]
 	 * set src mask mipi0 0x1: Unmask
 	 */
-	cfg = readl(&clk->src_mask_lcd0);
-	cfg |= (0x1 << 12);
-	writel(cfg, &clk->src_mask_lcd0);
+	setbits_le32(&clk->src_mask_lcd0, 0x1 << 12);
 
 	/*
 	 * CLK_GATE_IP_LCD0
@@ -1222,9 +1184,7 @@ void exynos4_set_mipi_clk(void)
 	 * CLK_PPMULCD0		[5]
 	 * Gating all clocks for MIPI0
 	 */
-	cfg = readl(&clk->gate_ip_lcd0);
-	cfg |= 1 << 3;
-	writel(cfg, &clk->gate_ip_lcd0);
+	setbits_le32(&clk->gate_ip_lcd0, 1 << 3);
 
 	/*
 	 * CLK_DIV_LCD0
@@ -1236,9 +1196,7 @@ void exynos4_set_mipi_clk(void)
 	 * MIPI0_PRE_RATIO	[23:20]
 	 * set mipi ratio
 	 */
-	cfg &= ~(0xf << 16);
-	cfg |= (0x1 << 16);
-	writel(cfg, &clk->div_lcd0);
+	clrsetbits_le32(&clk->div_lcd0, 0xf << 16, 0x1 << 16);
 }
 
 /*

arch/arm/cpu/armv7/exynos/pinmux.c

@@ -751,12 +751,7 @@ static int exynos5_pinmux_decode_periph_id(const void *blob, int node)
 	if (err)
 		return PERIPH_ID_NONE;
 
-	/* check for invalid peripheral id */
-	if ((PERIPH_ID_SDMMC4 > cell[1]) || (cell[1] < PERIPH_ID_UART0))
-		return cell[1];
-
-	debug(" invalid peripheral id\n");
-	return PERIPH_ID_NONE;
+	return cell[1];
 }
 
 int pinmux_decode_periph_id(const void *blob, int node)

arch/arm/cpu/armv7/kona-common/Makefile

@@ -0,0 +1,9 @@
+#
+# Copyright 2013 Broadcom Corporation.
+#
+# SPDX-License-Identifier:	GPL-2.0+
+#
+
+obj-y	+= s_init.o
+obj-y	+= hwinit-common.o
+obj-y	+= clk-stubs.o

arch/arm/cpu/armv7/kona-common/clk-stubs.c

@@ -0,0 +1,21 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+
+/*
+ * These weak functions are available to kona architectures that don't
+ * require clock enables from the driver code.
+ */
+int __weak clk_sdio_enable(void *base, u32 rate, u32 *actual_ratep)
+{
+	return 0;
+}
+
+int __weak clk_bsc_enable(void *base, u32 rate, u32 *actual_ratep)
+{
+	return 0;
+}

arch/arm/cpu/armv7/kona-common/hwinit-common.c

@@ -0,0 +1,16 @@
+/*
+ * Copyright 2013 Broadcom Corporation.
+ *
+ * SPDX-License-Identifier:      GPL-2.0+
+ */
+
+#include <common.h>
+#include <linux/sizes.h>
+
+#ifndef CONFIG_SYS_DCACHE_OFF
+void enable_caches(void)
+{
+	/* Enable D-cache. I-cache is already enabled in start.S */
+	dcache_enable();
+}
+#endif