Merge branch '2023-04-25-assorted-updates-and-fixes'

- A few TI, mpc8379erdb and vexpress64 updates, some arm64 core updates,
  test cleanups, Xen cleanups, assorted code and Kconfig cleanups (many
  in preparation for using clang on ARM), psci pre-reloc fixes, enable
  PCI bus mastering for ATA devices, and a gpio-uclass bugfix

Kconfig

@@ -175,6 +175,8 @@ config CC_HAS_ASM_INLINE
 
 config XEN
 	bool "Select U-Boot be run as a bootloader for XEN Virtual Machine"
+	depends on ARM64
+	select SSCANF
 	help
 	  Enabling this option will make U-Boot be run as a bootloader
 	  for XEN [1] Virtual Machine.

Makefile

@@ -437,6 +437,7 @@ KBUILD_LDFLAGS  :=
 ifeq ($(cc-name),clang)
 ifneq ($(CROSS_COMPILE),)
 CLANG_TARGET	:= --target=$(notdir $(CROSS_COMPILE:%-=%))
+LDPPFLAGS	+= $(CLANG_TARGET)
 GCC_TOOLCHAIN_DIR := $(dir $(shell which $(LD)))
 CLANG_PREFIX	:= --prefix=$(GCC_TOOLCHAIN_DIR)
 GCC_TOOLCHAIN	:= $(realpath $(GCC_TOOLCHAIN_DIR)/..)
@@ -893,8 +894,10 @@ u-boot-main := $(libs-y)
 ifeq ($(CONFIG_USE_PRIVATE_LIBGCC),y)
 PLATFORM_LIBGCC = arch/$(ARCH)/lib/lib.a
 else
+ifndef CONFIG_CC_IS_CLANG
 PLATFORM_LIBGCC := -L $(shell dirname `$(CC) $(c_flags) -print-libgcc-file-name`) -lgcc
 endif
+endif
 PLATFORM_LIBS += $(PLATFORM_LIBGCC)
 
 ifdef CONFIG_CC_COVERAGE

api/Kconfig

@@ -1,13 +1,14 @@
-menu "API"
-
 config API
 	bool "Enable U-Boot API"
+	depends on CC_IS_GCC
 	help
 	  This option enables the U-Boot API. See api/README for more information.
 
+menu "API"
+	depends on API
+
 config SYS_MMC_MAX_DEVICE
 	int  "Maximum number of MMC devices exposed via the API"
-	depends on API
 	default 1
 
 config EXAMPLES

arch/arm/Kconfig

@@ -12,7 +12,7 @@ config ARM64
 
 config ARM64_CRC32
 	bool "Enable support for CRC32 instruction"
-	depends on ARM64
+	depends on ARM64 && CC_IS_GCC
 	default y
 	help
 	  ARMv8 implements dedicated crc32 instruction for crc32 calculation.
@@ -2044,7 +2044,6 @@ config TARGET_XENGUEST_ARM64
 	select OF_CONTROL
 	select LINUX_KERNEL_IMAGE_HEADER
 	select XEN_SERIAL
-	select SSCANF
 	imply OF_HAS_PRIOR_STAGE
 
 config ARCH_GXP

arch/arm/config.mk

@@ -3,7 +3,13 @@
 # (C) Copyright 2000-2002
 # Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 
-CFLAGS_NON_EFI := -fno-pic -ffixed-r9 -ffunction-sections -fdata-sections \
+ifeq ($(CONFIG_ARM64),y)
+FIXED_REG := -ffixed-x18
+else
+FIXED_REG := -ffixed-r9
+endif
+
+CFLAGS_NON_EFI := -fno-pic $(FIXED_REG) -ffunction-sections -fdata-sections \
 		  -fstack-protector-strong
 CFLAGS_EFI := -fpic -fshort-wchar
 
@@ -15,7 +21,7 @@ ifneq ($(LTO_ENABLE),y)
 PLATFORM_RELFLAGS += -ffunction-sections -fdata-sections
 endif
 
-PLATFORM_RELFLAGS += -fno-common -ffixed-r9
+PLATFORM_RELFLAGS += -fno-common $(FIXED_REG)
 PLATFORM_RELFLAGS += $(call cc-option, -msoft-float) \
 		     $(call cc-option,-mgeneral-regs-only) \
       $(call cc-option,-mshort-load-bytes,$(call cc-option,-malignment-traps,))

arch/arm/cpu/armv7/start.S

@@ -134,8 +134,8 @@ ENTRY(c_runtime_cpu_setup)
  */
 #if !CONFIG_IS_ENABLED(SYS_ICACHE_OFF)
 	mcr	p15, 0, r0, c7, c5, 0	@ invalidate icache
-	mcr     p15, 0, r0, c7, c10, 4	@ DSB
-	mcr     p15, 0, r0, c7, c5, 4	@ ISB
+	dsb
+	isb
 #endif
 
 	bx	lr
@@ -188,8 +188,8 @@ ENTRY(cpu_init_cp15)
 	mcr	p15, 0, r0, c8, c7, 0	@ invalidate TLBs
 	mcr	p15, 0, r0, c7, c5, 0	@ invalidate icache
 	mcr	p15, 0, r0, c7, c5, 6	@ invalidate BP array
-	mcr     p15, 0, r0, c7, c10, 4	@ DSB
-	mcr     p15, 0, r0, c7, c5, 4	@ ISB
+	dsb
+	isb
 
 	/*
 	 * disable MMU stuff and caches

arch/arm/cpu/armv8/cache_v8.c

@@ -93,10 +93,16 @@ u64 get_tcr(u64 *pips, u64 *pva_bits)
 
 	if (el == 1) {
 		tcr = TCR_EL1_RSVD | (ips << 32) | TCR_EPD1_DISABLE;
+		if (gd->arch.has_hafdbs)
+			tcr |= TCR_EL1_HA | TCR_EL1_HD;
 	} else if (el == 2) {
 		tcr = TCR_EL2_RSVD | (ips << 16);
+		if (gd->arch.has_hafdbs)
+			tcr |= TCR_EL2_HA | TCR_EL2_HD;
 	} else {
 		tcr = TCR_EL3_RSVD | (ips << 16);
+		if (gd->arch.has_hafdbs)
+			tcr |= TCR_EL3_HA | TCR_EL3_HD;
 	}
 
 	/* PTWs cacheable, inner/outer WBWA and inner shareable */
@@ -200,6 +206,9 @@ static void __cmo_on_leaves(void (*cmo_fn)(unsigned long, unsigned long),
 		    attrs != PTE_BLOCK_MEMTYPE(MT_NORMAL_NC))
 			continue;
 
+		if (gd->arch.has_hafdbs && (pte & (PTE_RDONLY | PTE_DBM)) != PTE_DBM)
+			continue;
+
 		end = va + BIT(level2shift(level)) - 1;
 
 		/* No intersection with RAM? */
@@ -309,7 +318,7 @@ static void map_range(u64 virt, u64 phys, u64 size, int level,
 	for (i = idx; size; i++) {
 		u64 next_size, *next_table;
 
-		if (level >= 1 &&
+		if (level >= gd->arch.first_block_level &&
 		    size >= map_size && !(virt & (map_size - 1))) {
 			if (level == 3)
 				table[i] = phys | attrs | PTE_TYPE_PAGE;
@@ -348,6 +357,12 @@ static void add_map(struct mm_region *map)
 	if (va_bits < 39)
 		level = 1;
 
+	if (!gd->arch.first_block_level)
+		gd->arch.first_block_level = 1;
+
+	if (gd->arch.has_hafdbs)
+		attrs |= PTE_DBM | PTE_RDONLY;
+
 	map_range(map->virt, map->phys, map->size, level,
 		  (u64 *)gd->arch.tlb_addr, attrs);
 }
@@ -361,7 +376,7 @@ static void count_range(u64 virt, u64 size, int level, int *cntp)
 	for (i = idx; size; i++) {
 		u64 next_size;
 
-		if (level >= 1 &&
+		if (level >= gd->arch.first_block_level &&
 		    size >= map_size && !(virt & (map_size - 1))) {
 			virt += map_size;
 			size -= map_size;
@@ -399,7 +414,16 @@ static int count_ranges(void)
 __weak u64 get_page_table_size(void)
 {
 	u64 one_pt = MAX_PTE_ENTRIES * sizeof(u64);
-	u64 size;
+	u64 size, mmfr1;
+
+	asm volatile("mrs %0, id_aa64mmfr1_el1" : "=r" (mmfr1));
+	if ((mmfr1 & 0xf) == 2) {
+		gd->arch.has_hafdbs = true;
+		gd->arch.first_block_level = 2;
+	} else {
+		gd->arch.has_hafdbs = false;
+		gd->arch.first_block_level = 1;
+	}
 
 	/* Account for all page tables we would need to cover our memory map */
 	size = one_pt * count_ranges();

arch/arm/cpu/armv8/config.mk

@@ -2,7 +2,6 @@
 #
 # (C) Copyright 2002
 # Gary Jennejohn, DENX Software Engineering, <garyj@denx.de>
-PLATFORM_RELFLAGS += -fno-common -ffixed-x18
 PLATFORM_RELFLAGS += $(call cc-option,-mbranch-protection=none)
 
 PF_NO_UNALIGNED := $(call cc-option, -mstrict-align)

arch/arm/include/asm/armv8/mmu.h

@@ -49,10 +49,13 @@
 #define PTE_TYPE_BLOCK		(1 << 0)
 #define PTE_TYPE_VALID		(1 << 0)
 
-#define PTE_TABLE_PXN		(1UL << 59)
-#define PTE_TABLE_XN		(1UL << 60)
-#define PTE_TABLE_AP		(1UL << 61)
-#define PTE_TABLE_NS		(1UL << 63)
+#define PTE_RDONLY		BIT(7)
+#define PTE_DBM			BIT(51)
+
+#define PTE_TABLE_PXN		BIT(59)
+#define PTE_TABLE_XN		BIT(60)
+#define PTE_TABLE_AP		BIT(61)
+#define PTE_TABLE_NS		BIT(63)
 
 /*
  * Block
@@ -99,6 +102,15 @@
 #define TCR_TG0_16K		(2 << 14)
 #define TCR_EPD1_DISABLE	(1 << 23)
 
+#define TCR_EL1_HA		BIT(39)
+#define TCR_EL1_HD		BIT(40)
+
+#define TCR_EL2_HA		BIT(21)
+#define TCR_EL2_HD		BIT(22)
+
+#define TCR_EL3_HA		BIT(21)
+#define TCR_EL3_HD		BIT(22)
+
 #define TCR_EL1_RSVD		(1U << 31)
 #define TCR_EL2_RSVD		(1U << 31 | 1 << 23)
 #define TCR_EL3_RSVD		(1U << 31 | 1 << 23)

arch/arm/include/asm/global_data.h

@@ -52,6 +52,8 @@ struct arch_global_data {
 #if defined(CONFIG_ARM64)
 	unsigned long tlb_fillptr;
 	unsigned long tlb_emerg;
+	unsigned int first_block_level;
+	bool has_hafdbs;
 #endif
 #endif
 #ifdef CFG_SYS_MEM_RESERVE_SECURE

arch/arm/lib/interrupts_64.c

@@ -37,6 +37,40 @@ static void show_efi_loaded_images(struct pt_regs *regs)
 	efi_print_image_infos((void *)regs->elr);
 }
 
+static void dump_far(unsigned long esr)
+{
+	unsigned long el, far;
+
+	switch ((esr >> 26) & 0b111111) {
+	case 0x20:
+	case 0x21:
+	case 0x24:
+	case 0x25:
+	case 0x22:
+	case 0x34:
+	case 0x35:
+		break;
+	default:
+		return;
+	}
+
+	asm("mrs	%0, CurrentEl": "=r" (el));
+
+	switch (el >> 2) {
+	case 1:
+		asm("mrs	%0, FAR_EL1": "=r" (far));
+		break;
+	case 2:
+		asm("mrs	%0, FAR_EL2": "=r" (far));
+		break;
+	default:
+		/* don't print anything to make output pretty */
+		return;
+	}
+
+	printf(", far 0x%lx", far);
+}
+
 static void dump_instr(struct pt_regs *regs)
 {
 	u32 *addr = (u32 *)(regs->elr & ~3UL);
@@ -165,7 +199,9 @@ void do_sync(struct pt_regs *pt_regs)
 	    smh_emulate_trap(pt_regs))
 		return;
 	efi_restore_gd();
-	printf("\"Synchronous Abort\" handler, esr 0x%08lx\n", pt_regs->esr);
+	printf("\"Synchronous Abort\" handler, esr 0x%08lx", pt_regs->esr);
+	dump_far(pt_regs->esr);
+	printf("\n");
 	show_regs(pt_regs);
 	show_efi_loaded_images(pt_regs);
 	panic("Resetting CPU ...\n");

arch/arm/mach-k3/j721s2_init.c

@@ -22,6 +22,51 @@
 #include <mmc.h>
 #include <remoteproc.h>
 
+struct fwl_data cbass_hc_cfg0_fwls[] = {
+	{ "PCIE0_CFG", 2577, 7 },
+	{ "EMMC8SS0_CFG", 2579, 4 },
+	{ "USB3SS0_CORE", 2580, 4 },
+	{ "USB3SS1_CORE", 2581, 1 },
+}, cbass_hc2_fwls[] = {
+	{ "PCIE0", 2547, 24 },
+	{ "HC2_WIZ16B8M4CT2", 2552, 1 },
+}, cbass_rc_cfg0_fwls[] = {
+	{ "EMMCSD4SS0_CFG", 2400, 4 },
+}, infra_cbass0_fwls[] = {
+	{ "PSC0", 5, 1 },
+	{ "PLL_CTRL0", 6, 1 },
+	{ "PLL_MMR0", 8, 26 },
+	{ "CTRL_MMR0", 9, 16 },
+	{ "GPIO0", 16, 1 },
+}, mcu_cbass0_fwls[] = {
+	{ "MCU_R5FSS0_CORE0", 1024, 4 },
+	{ "MCU_R5FSS0_CORE0_CFG", 1025, 3 },
+	{ "MCU_R5FSS0_CORE1", 1028, 4 },
+	{ "MCU_R5FSS0_CORE1_CFG", 1029, 1 },
+	{ "MCU_FSS0_CFG", 1032, 12 },
+	{ "MCU_FSS0_S1", 1033, 8 },
+	{ "MCU_FSS0_S0", 1036, 8 },
+	{ "MCU_PSROM49152X32", 1048, 1 },
+	{ "MCU_MSRAM128KX64", 1050, 8 },
+	{ "MCU_MSRAM128KX64_CFG", 1051, 1 },
+	{ "MCU_TIMER0", 1056, 1 },
+	{ "MCU_TIMER9", 1065, 1 },
+	{ "MCU_USART0", 1120, 1 },
+	{ "MCU_I2C0", 1152, 1 },
+	{ "MCU_CTRL_MMR0", 1200, 8 },
+	{ "MCU_PLL_MMR0", 1201, 3 },
+	{ "MCU_CPSW0", 1220, 2 },
+}, wkup_cbass0_fwls[] = {
+	{ "WKUP_PSC0", 129, 1 },
+	{ "WKUP_PLL_CTRL0", 130, 1 },
+	{ "WKUP_CTRL_MMR0", 131, 16 },
+	{ "WKUP_GPIO0", 132, 1 },
+	{ "WKUP_I2C0", 144, 1 },
+	{ "WKUP_USART0", 160, 1 },
+}, navss_cbass0_fwls[] = {
+	{ "NACSS_VIRT0", 6253, 1 },
+};
+
 static void ctrl_mmr_unlock(void)
 {
 	/* Unlock all WKUP_CTRL_MMR0 module registers */
@@ -150,6 +195,14 @@ void k3_spl_init(void)
 			if (ret)
 				panic("Failed to initialize clk-k3!\n");
 		}
+
+		remove_fwl_configs(cbass_hc_cfg0_fwls, ARRAY_SIZE(cbass_hc_cfg0_fwls));
+		remove_fwl_configs(cbass_hc2_fwls, ARRAY_SIZE(cbass_hc2_fwls));
+		remove_fwl_configs(cbass_rc_cfg0_fwls, ARRAY_SIZE(cbass_rc_cfg0_fwls));
+		remove_fwl_configs(infra_cbass0_fwls, ARRAY_SIZE(infra_cbass0_fwls));
+		remove_fwl_configs(mcu_cbass0_fwls, ARRAY_SIZE(mcu_cbass0_fwls));
+		remove_fwl_configs(wkup_cbass0_fwls, ARRAY_SIZE(wkup_cbass0_fwls));
+		remove_fwl_configs(navss_cbass0_fwls, ARRAY_SIZE(navss_cbass0_fwls));
 	}
 
 	/* Output System Firmware version info */

arch/arm/mach-omap2/omap3/lowlevel_init.S

@@ -15,13 +15,14 @@
 #include <asm/arch/clocks_omap3.h>
 #include <linux/linkage.h>
 
+.arch_extension sec
+
 /*
  * Funtion for making PPA HAL API calls in secure devices
  * Input:
  *	R0 - Service ID
  *	R1 - paramer list
  */
-/* TODO: Re-evaluate the comment at the end regarding armv5 vs armv7 */
 ENTRY(do_omap3_emu_romcode_call)
 	PUSH {r4-r12, lr} @ Save all registers from ROM code!
 	MOV r12, r0	@ Copy the Secure Service ID in R12
@@ -32,8 +33,7 @@ ENTRY(do_omap3_emu_romcode_call)
 	MOV r6, #0xFF	@ Indicate new Task call
 	mcr     p15, 0, r0, c7, c10, 4	@ DSB
 	mcr     p15, 0, r0, c7, c10, 5	@ DMB
-	.word	0xe1600071	@ SMC #1 to call PPA service - hand assembled
-				@ because we use -march=armv5
+	SMC     #1	@ Call PPA service
 	POP {r4-r12, pc}
 ENDPROC(do_omap3_emu_romcode_call)
 

arch/powerpc/dts/mpc8379erdb.dts

@@ -13,6 +13,11 @@
 	#address-cells = <1>;
 	#size-cells = <1>;
 
+	aliases {
+		serial0 = &serial0;
+		serial1 = &serial1;
+	};
+
 	cpus {
 		#address-cells = <1>;
 		#size-cells = <0>;
@@ -60,6 +65,28 @@
 			clock-frequency = <0>;
 		};
 
+		serial0: serial@4500 {
+			cell-index = <0>;
+			device_type = "serial";
+			compatible = "fsl,ns16550", "ns16550";
+			reg = <0x4500 0x100>;
+			clock-frequency = <333333000>;
+			interrupts = <9 0x8>;
+			interrupt-parent = <&ipic>;
+			bootph-all;
+		};
+
+		serial1: serial@4600 {
+			cell-index = <1>;
+			device_type = "serial";
+			compatible = "fsl,ns16550", "ns16550";
+			reg = <0x4600 0x100>;
+			clock-frequency = <333333000>;
+			interrupts = <10 0x8>;
+			interrupt-parent = <&ipic>;
+			bootph-all;
+		};
+
 		ipic: interrupt-controller@700 {
 			compatible = "fsl,ipic";
 			interrupt-controller;

board/armltd/vexpress64/Kconfig

@@ -12,8 +12,13 @@ config SYS_CONFIG_NAME
 config VEXPRESS64_BASE_MODEL
 	bool
 	select SEMIHOSTING
+	imply VIRTIO_MMIO
 	select VIRTIO_BLK if VIRTIO_MMIO
 	select VIRTIO_NET if VIRTIO_MMIO
+	select DM_ETH if VIRTIO_NET
+	imply RTC_PL031
+	select DM_RTC if RTC_PL031
+	imply EFI_SET_TIME if DM_RTC
 	select LINUX_KERNEL_IMAGE_HEADER
 	select POSITION_INDEPENDENT
 
@@ -23,7 +28,7 @@ choice
 config TARGET_VEXPRESS64_BASE_FVP
 	bool "Support Versatile Express ARMv8a FVP BASE model"
 	select VEXPRESS64_BASE_MODEL
-	select OF_BOARD
+	imply OF_HAS_PRIOR_STAGE
 
 config TARGET_VEXPRESS64_BASER_FVP
 	bool "Support Versatile Express ARMv8r64 FVP BASE model"

board/emulation/common/qemu_dfu.c

@@ -48,7 +48,7 @@ void set_dfu_alt_info(char *interface, char *devstr)
 	    env_get("dfu_alt_info"))
 		return;
 
-	memset(buf, 0, sizeof(buf));
+	memset(buf, 0, DFU_ALT_BUF_LEN);
 
 	/*
 	 * Currently dfu_alt_info is needed on Qemu ARM64 for

board/ti/am64x/am64x.env

@@ -0,0 +1,63 @@
+#include <environment/ti/ti_armv7_common.env>
+#include <environment/ti/mmc.env>
+#include <environment/ti/k3_dfu.env>
+
+findfdt=
+	if test $board_name = am64x_gpevm; then
+		setenv name_fdt k3-am642-evm.dtb; fi;
+	if test $board_name = am64x_skevm; then
+		setenv name_fdt k3-am642-sk.dtb; fi;
+	if test $name_fdt = undefined; then
+		echo WARNING: Could not determine device tree to use; fi;
+name_kern=Image
+console=ttyS2,115200n8
+args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 ${mtdparts}
+run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}
+
+boot=mmc
+mmcdev=1
+bootpart=1:2
+bootdir=/boot
+rd_spec=-
+init_mmc=run args_all args_mmc
+get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}
+get_overlay_mmc=
+	fdt address ${fdtaddr};
+	fdt resize 0x100000;
+	for overlay in $name_overlays;
+	do;
+	load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} &&
+	fdt apply ${dtboaddr};
+	done;
+get_kern_mmc=load mmc ${bootpart} ${loadaddr}
+	${bootdir}/${name_kern}
+get_fit_mmc=load mmc ${bootpart} ${addr_fit}
+	${bootdir}/${name_fit}
+partitions=name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}
+
+args_usb=run finduuid;setenv bootargs console=${console}
+	${optargs}
+	root=PARTUUID=${uuid} rw
+	rootfstype=${mmcrootfstype}
+init_usb=run args_all args_usb
+get_fdt_usb=load usb ${bootpart} ${fdtaddr} ${bootdir}/${name_fdt}
+get_overlay_usb=
+	fdt address ${fdtaddr};
+	fdt resize 0x100000;
+	for overlay in $name_overlays;
+	do;
+	load usb ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && fdt apply
+	${dtboaddr};
+	done;
+get_kern_usb=load usb ${bootpart} ${loadaddr}
+	${bootdir}/${name_kern}
+get_fit_usb=load usb ${bootpart} ${addr_fit}
+	${bootdir}/${name_fit}
+usbboot=setenv boot usb;
+	setenv bootpart 0:2;
+	usb start;
+	run findfdt;
+	run init_usb;
+	run get_kern_usb;
+	run get_fdt_usb;
+	run run_kern;

boot/image-board.c

@@ -328,7 +328,7 @@ static int select_ramdisk(struct bootm_headers *images, const char *select, u8 a
 	bool done_select = !select;
 	bool done = false;
 	int rd_noffset;
-	ulong rd_addr;
+	ulong rd_addr = 0;
 	char *buf;
 
 	if (CONFIG_IS_ENABLED(FIT)) {

configs/MPC837XERDB_defconfig

@@ -4,6 +4,8 @@ CONFIG_SYS_MALLOC_LEN=0x80000
 CONFIG_ENV_SIZE=0x4000
 CONFIG_ENV_SECT_SIZE=0x10000
 CONFIG_DEFAULT_DEVICE_TREE="mpc8379erdb"
+CONFIG_DEBUG_UART_BASE=0xe0004500
+CONFIG_DEBUG_UART_CLOCK=333333000
 CONFIG_SYS_CLK_FREQ=66666667
 CONFIG_ENV_ADDR=0xFE080000
 # CONFIG_SYS_PCI_64BIT is not set
@@ -118,6 +120,7 @@ CONFIG_LCRR_DBYP_PLL_BYPASSED=y
 CONFIG_LCRR_CLKDIV_8=y
 CONFIG_FSL_SERDES=y
 CONFIG_USE_UBOOTPATH=y
+CONFIG_DEBUG_UART=y
 CONFIG_SYS_MONITOR_LEN=524288
 CONFIG_OF_BOARD_SETUP=y
 CONFIG_OF_STDOUT_VIA_ALIAS=y
@@ -185,7 +188,9 @@ CONFIG_MII=y
 CONFIG_VSC7385_ENET=y
 CONFIG_TSEC_ENET=y
 CONFIG_RTC_DS1374=y
-CONFIG_SYS_NS16550_SERIAL=y
+CONFIG_SPECIFY_CONSOLE_INDEX=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYS_NS16550=y
 CONFIG_USB=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_FSL=y

configs/vexpress_fvp_defconfig

@@ -0,0 +1,5 @@
+CONFIG_ARM=y
+CONFIG_ARCH_VEXPRESS64=y
+CONFIG_DEFAULT_DEVICE_TREE="arm_fvp"
+CONFIG_IDENT_STRING=" arm_fvp"
+# CONFIG_DISPLAY_CPUINFO is not set

drivers/ata/ahci.c

@@ -1152,7 +1152,12 @@ int ahci_probe_scsi(struct udevice *ahci_dev, ulong base)
 int ahci_probe_scsi_pci(struct udevice *ahci_dev)
 {
 	ulong base;
-	u16 vendor, device;
+	u16 vendor, device, cmd;
+
+	/* Enable bus mastering */
+	dm_pci_read_config16(ahci_dev, PCI_COMMAND, &cmd);
+	cmd |= PCI_COMMAND_MASTER;
+	dm_pci_write_config16(ahci_dev, PCI_COMMAND, cmd);
 
 	base = (ulong)dm_pci_map_bar(ahci_dev, PCI_BASE_ADDRESS_5, 0, 0,
 				     PCI_REGION_TYPE, PCI_REGION_MEM);

drivers/firmware/psci.c

@@ -319,4 +319,5 @@ U_BOOT_DRIVER(psci) = {
 #ifdef CONFIG_ARM_SMCCC_FEATURES
 	.plat_auto = sizeof(struct psci_plat_data),
 #endif
+	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/gpio/gpio-uclass.c

@@ -1219,7 +1219,7 @@ int gpio_request_list_by_name_nodev(ofnode node, const char *list_name,
 	return count;
 
 err:
-	gpio_free_list_nodev(desc, count - 1);
+	gpio_free_list_nodev(desc, count);
 
 	return ret;
 }

drivers/soc/soc_ti_k3.c

@@ -70,12 +70,12 @@ static const char *get_rev_string(u32 idreg)
 
 	switch (soc) {
 	case JTAG_ID_PARTNO_J721E:
-		if (rev > ARRAY_SIZE(j721e_rev_string_map))
+		if (rev >= ARRAY_SIZE(j721e_rev_string_map))
 			goto bail;
 		return j721e_rev_string_map[rev];
 
 	default:
-		if (rev > ARRAY_SIZE(typical_rev_string_map))
+		if (rev >= ARRAY_SIZE(typical_rev_string_map))
 			goto bail;
 		return typical_rev_string_map[rev];
 	};

drivers/sysreset/sysreset_psci.c

@@ -9,6 +9,11 @@
 #include <linux/errno.h>
 #include <linux/psci.h>
 
+__weak int psci_sysreset_get_status(struct udevice *dev, char *buf, int size)
+{
+	return -EOPNOTSUPP;
+}
+
 static int psci_sysreset_request(struct udevice *dev, enum sysreset_t type)
 {
 	switch (type) {
@@ -28,10 +33,12 @@ static int psci_sysreset_request(struct udevice *dev, enum sysreset_t type)
 
 static struct sysreset_ops psci_sysreset_ops = {
 	.request = psci_sysreset_request,
+	.get_status = psci_sysreset_get_status,
 };
 
 U_BOOT_DRIVER(psci_sysreset) = {
 	.name = "psci-sysreset",
 	.id = UCLASS_SYSRESET,
 	.ops = &psci_sysreset_ops,
+	.flags = DM_FLAG_PRE_RELOC,
 };

drivers/usb/gadget/f_mass_storage.c

@@ -1117,7 +1117,7 @@ static int do_request_sense(struct fsg_common *common, struct fsg_buffhd *bh)
 {
 	struct fsg_lun	*curlun = &common->luns[common->lun];
 	u8		*buf = (u8 *) bh->buf;
-	u32		sd, sdinfo;
+	u32		sd, sdinfo = 0;
 	int		valid;
 
 	/*
@@ -1145,7 +1145,6 @@ static int do_request_sense(struct fsg_common *common, struct fsg_buffhd *bh)
 	if (!curlun) {		/* Unsupported LUNs are okay */
 		common->bad_lun_okay = 1;
 		sd = SS_LOGICAL_UNIT_NOT_SUPPORTED;
-		sdinfo = 0;
 		valid = 0;
 	} else {
 		sd = curlun->sense_data;

drivers/xen/Kconfig

@@ -1,6 +1,6 @@
 config PVBLOCK
 	bool "Xen para-virtualized block device"
-	depends on DM
+	depends on DM && XEN
 	select BLK
 	help
 	  This driver implements the front-end of the Xen virtual

drivers/xen/hypervisor.c

@@ -264,8 +264,15 @@ void clear_evtchn(uint32_t port)
 
 int xen_init(void)
 {
+	int el = current_el();
+
 	debug("%s\n", __func__);
 
+	if (el != 1) {
+		puts("XEN:\tnot running from EL1\n");
+		return 0;
+	}
+
 	map_shared_info(NULL);
 	init_events();
 	init_xenbus();

fs/yaffs2/yaffsfs.c

@@ -468,7 +468,7 @@ static int yaffsfs_alt_dir_path(const YCHAR *path, YCHAR **ret_path)
 	return 0;
 }
 
-LIST_HEAD(yaffsfs_deviceList);
+static LIST_HEAD(yaffsfs_deviceList);
 
 /*
  * yaffsfs_FindDevice

include/configs/MPC837XERDB.h

@@ -140,7 +140,9 @@
 /*
  * Serial Port
  */
+#if !CONFIG_IS_ENABLED(DM_SERIAL) && !CONFIG_IS_ENABLED(DM_CLK)
 #define CFG_SYS_NS16550_CLK		get_bus_freq(0)
+#endif
 
 #define CFG_SYS_BAUDRATE_TABLE \
 		{300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 115200}

include/configs/am64x_evm.h

@@ -18,91 +18,6 @@
 /* DDR Configuration */
 #define CFG_SYS_SDRAM_BASE1		0x880000000
 
-#define PARTS_DEFAULT \
-	/* Linux partitions */ \
-	"name=rootfs,start=0,size=-,uuid=${uuid_gpt_rootfs}\0"
-
-/* U-Boot general configuration */
-#define EXTRA_ENV_AM642_BOARD_SETTINGS					\
-	"findfdt="							\
-		"if test $board_name = am64x_gpevm; then " \
-			"setenv fdtfile k3-am642-evm.dtb; fi; " \
-		"if test $board_name = am64x_skevm; then " \
-			"setenv fdtfile k3-am642-sk.dtb; fi;" \
-		"if test $fdtfile = undefined; then " \
-			"echo WARNING: Could not determine device tree to use; fi; \0" \
-	"name_kern=Image\0"						\
-	"console=ttyS2,115200n8\0"					\
-	"args_all=setenv optargs earlycon=ns16550a,mmio32,0x02800000 "	\
-		"${mtdparts}\0"						\
-	"run_kern=booti ${loadaddr} ${rd_spec} ${fdtaddr}\0"
-
-/* U-Boot MMC-specific configuration */
-#define EXTRA_ENV_AM642_BOARD_SETTINGS_MMC				\
-	"boot=mmc\0"							\
-	"mmcdev=1\0"							\
-	"bootpart=1:2\0"						\
-	"bootdir=/boot\0"						\
-	"rd_spec=-\0"							\
-	"init_mmc=run args_all args_mmc\0"				\
-	"get_fdt_mmc=load mmc ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
-	"get_overlay_mmc="						\
-		"fdt address ${fdtaddr};"				\
-		"fdt resize 0x100000;"					\
-		"for overlay in $name_overlays;"			\
-		"do;"							\
-		"load mmc ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && "	\
-		"fdt apply ${dtboaddr};"				\
-		"done;\0"						\
-	"get_kern_mmc=load mmc ${bootpart} ${loadaddr} "		\
-		"${bootdir}/${name_kern}\0"				\
-	"get_fit_mmc=load mmc ${bootpart} ${addr_fit} "			\
-		"${bootdir}/${name_fit}\0"				\
-	"partitions=" PARTS_DEFAULT
-
-#define EXTRA_ENV_AM642_BOARD_SETTING_USBMSC				\
-	"args_usb=run finduuid;setenv bootargs console=${console} "	\
-		"${optargs} "						\
-		"root=PARTUUID=${uuid} rw "				\
-		"rootfstype=${mmcrootfstype}\0"				\
-	"init_usb=run args_all args_usb\0"				\
-	"get_fdt_usb=load usb ${bootpart} ${fdtaddr} ${bootdir}/${fdtfile}\0" \
-	"get_overlay_usb="						\
-		"fdt address ${fdtaddr};"				\
-		"fdt resize 0x100000;"					\
-		"for overlay in $name_overlays;"			\
-		"do;"							\
-		"load usb ${bootpart} ${dtboaddr} ${bootdir}/${overlay} && "	\
-		"fdt apply ${dtboaddr};"				\
-		"done;\0"						\
-	"get_kern_usb=load usb ${bootpart} ${loadaddr} "		\
-		"${bootdir}/${name_kern}\0"				\
-	"get_fit_usb=load usb ${bootpart} ${addr_fit} "			\
-		"${bootdir}/${name_fit}\0"				\
-	"usbboot=setenv boot usb;"					\
-		"setenv bootpart 0:2;"					\
-		"usb start;"						\
-		"run findfdt;"						\
-		"run init_usb;"						\
-		"run get_kern_usb;"					\
-		"run get_fdt_usb;"					\
-		"run run_kern\0"
-
-#define EXTRA_ENV_DFUARGS \
-	DFU_ALT_INFO_MMC \
-	DFU_ALT_INFO_EMMC \
-	DFU_ALT_INFO_RAM \
-	DFU_ALT_INFO_OSPI
-
-/* Incorporate settings into the U-Boot environment */
-#define CFG_EXTRA_ENV_SETTINGS					\
-	DEFAULT_LINUX_BOOT_ENV						\
-	DEFAULT_MMC_TI_ARGS						\
-	EXTRA_ENV_AM642_BOARD_SETTINGS					\
-	EXTRA_ENV_AM642_BOARD_SETTINGS_MMC				\
-	EXTRA_ENV_DFUARGS						\
-	EXTRA_ENV_AM642_BOARD_SETTING_USBMSC
-
 /* Now for the remaining common defines */
 #include <configs/ti_armv7_common.h>
 

test/Kconfig

@@ -3,7 +3,9 @@ config POST
 	help
 	  See doc/README.POST for more details
 
-menuconfig UNIT_TEST
+menu "Unit tests"
+
+config UNIT_TEST
 	bool "Unit tests"
 	help
 	  Select this to compile in unit tests for various parts of
@@ -107,3 +109,5 @@ source "test/env/Kconfig"
 source "test/lib/Kconfig"
 source "test/optee/Kconfig"
 source "test/overlay/Kconfig"
+
+endmenu

test/lib/Kconfig

@@ -1,23 +1,24 @@
 # SPDX-License-Identifier: GPL-2.0+
 # Copyright 2022 Google LLC
 
-if SANDBOX
-
 config TEST_KCONFIG
 	bool "Enable detection of Kconfig macro errors"
+	depends on SANDBOX
 	help
 	  This is used to test that the IF_ENABLED_INT() macro causes a build error
-	  if the value is used when the CONFIG Is not enabled.
+	  if the value is used when the CONFIG is not enabled.
+
+if TEST_KCONFIG
 
 config TEST_KCONFIG_ENABLE
-	bool "Option to enable"
+	bool "Provide a value for the Kconfig test"
 	help
 	  This is the option that controls whether the value is present.
 
 config TEST_KCONFIG_VALUE
-	int "Value associated with the option"
+	int "Value used in Kconfig test"
 	depends on TEST_KCONFIG_ENABLE
 	help
-	  This is the value whgch is present if TEST_KCONFIG_ENABLE is enabled.
+	  This is the value which is present if TEST_KCONFIG_ENABLE is enabled.
 
-endif # SANDBOX
+endif # TEST_KCONFIG

test/py/tests/test_ut.py

@@ -213,7 +213,7 @@ booti ${kernel_addr_r} ${ramdisk_addr_r} ${fdt_addr_r}
               str(exc))
     finally:
         if mounted:
-            u_boot_utils.run_and_log(cons, 'sudo umount %s' % mnt)
+            u_boot_utils.run_and_log(cons, 'sudo umount --lazy %s' % mnt)
         if loop:
             u_boot_utils.run_and_log(cons, 'sudo losetup -d %s' % loop)
 
@@ -274,7 +274,7 @@ label Fedora-Workstation-armhfp-31-1.9 (5.3.7-301.fc31.armv7hl)
               str(exc))
     finally:
         if mounted:
-            u_boot_utils.run_and_log(cons, 'sudo umount %s' % mnt)
+            u_boot_utils.run_and_log(cons, 'sudo umount --lazy %s' % mnt)
         if loop:
             u_boot_utils.run_and_log(cons, 'sudo losetup -d %s' % loop)
 

tools/env/README

@@ -59,5 +59,5 @@ this environment instance. On NAND this is used to limit the range
 within which bad blocks are skipped, on NOR it is not used.
 
 To prevent losing changes to the environment and to prevent confusing the MTD
-drivers, a lock file at /var/lock/fw_printenv.lock is used to serialize access
+drivers, a lock file at /run/fw_printenv.lock is used to serialize access
 to the environment.