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iMX9: scmi: Disable fused modules for iMX95/94/952
Disable relevant modules in kernel FDT and u-boot FDT according to fuse settings on iMX95/94/952. For u-boot FDT fixup, introduce a common function that each board needs this fixup could select OF_BOARD_FIXUP and implement board_fix_fdt to call imx9_uboot_fixup_by_fuse. Signed-off-by: Ye Li <ye.li@nxp.com> Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Ye Li
@@ -22,6 +22,7 @@ int low_drive_freq_update(void *blob);
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enum imx9_soc_voltage_mode soc_target_voltage_mode(void);
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int get_reset_reason(bool sys, bool lm);
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int imx9_uboot_fixup_by_fuse(void *fdt);
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int scmi_get_boot_device_offset(unsigned long *img_off);
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int scmi_get_boot_stage(u8 *stage);
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@@ -5,5 +5,5 @@
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# Add include path for NXP device tree header files from Linux.
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ccflags-y += -I$(srctree)/dts/upstream/src/arm64/freescale/
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obj-y += soc.o
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obj-y += soc.o fdt.o
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obj-y += clock_scmi.o clock.o
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644
arch/arm/mach-imx/imx9/scmi/fdt.c
Normal file
644
arch/arm/mach-imx/imx9/scmi/fdt.c
Normal file
@@ -0,0 +1,644 @@
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// SPDX-License-Identifier: GPL-2.0+
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/*
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* Copyright 2026 NXP
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*
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*/
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#include <asm/arch/sys_proto.h>
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#include <linux/bitfield.h>
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#include <fuse.h>
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#include <fdt_support.h>
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#include <fdtdec.h>
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struct periph_fuse_info {
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u32 bit_mask;
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u32 soc_type; /* 0 means for all */
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bool of_board_fix;
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int (*disable_func)(void *blob, u32 fuse_val);
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};
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int num_a55_cores_disabled;
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int gpu_disabled;
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static int delete_fdt_nodes(void *blob, const char *const nodes_path[], int size_array)
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{
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int i = 0;
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int rc;
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int nodeoff;
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for (i = 0; i < size_array; i++) {
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nodeoff = fdt_path_offset(blob, nodes_path[i]);
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if (nodeoff < 0)
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continue; /* Not found, skip it */
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debug("Found %s node\n", nodes_path[i]);
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rc = fdt_del_node(blob, nodeoff);
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if (rc < 0) {
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printf("Unable to delete node %s, err=%s\n",
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nodes_path[i], fdt_strerror(rc));
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} else {
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printf("Delete node %s\n", nodes_path[i]);
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}
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}
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return 0;
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}
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static int disable_fdt_nodes(void *blob, const char *const nodes_path[],
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int size_array, const char *prop, const char *value)
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{
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int i = 0;
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int rc;
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int nodeoff;
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const char *status = "disabled";
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const char *prop_str;
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for (i = 0; i < size_array; i++) {
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nodeoff = fdt_path_offset(blob, nodes_path[i]);
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if (nodeoff < 0)
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continue; /* Not found, skip it */
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debug("Found %s node\n", nodes_path[i]);
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if (prop && value) {
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prop_str = fdt_stringlist_get(blob, nodeoff, prop, 0, NULL);
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if (!prop_str || strcmp(prop_str, value))
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continue;
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}
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add_status:
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rc = fdt_setprop(blob, nodeoff, "status", status, strlen(status) + 1);
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if (rc) {
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if (rc == -FDT_ERR_NOSPACE) {
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rc = fdt_increase_size(blob, 512);
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if (!rc)
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goto add_status;
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}
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printf("Unable to update property %s:%s, err=%s\n",
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nodes_path[i], "status", fdt_strerror(rc));
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} else {
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debug("Modify %s:%s disabled\n", nodes_path[i], "status");
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}
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}
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return 0;
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}
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static int get_cooling_device_list(void *blob, u32 nodeoff,
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const char *const path, u32 *cooling_dev, int max_cnt)
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{
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int cnt, j;
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cnt = fdtdec_get_int_array_count(blob, nodeoff, "cooling-device",
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cooling_dev, max_cnt);
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if (cnt < 0) {
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printf("cnt incorrect, path %s, cnt = %d\n", path, cnt);
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return cnt;
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}
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if (cnt != max_cnt)
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printf("Warning: %s, cooling-device count %d\n", path, cnt);
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for (j = 0; j < cnt; j++)
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cooling_dev[j] = cpu_to_fdt32(cooling_dev[j]);
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return cnt;
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}
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static void disable_thermal_vpu_node(void *blob, u32 disabled_cores, u32 gpu_disabled)
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{
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static const char * const thermal_path[] = {
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"/thermal-zones/ana/cooling-maps/map0",
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"/thermal-zones/ana-thermal/cooling-maps/map0",
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};
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int num_cpus = (is_imx94() || is_imx952()) ? 4 : 6;
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u32 array_cnt = (num_cpus + 2) * 3 - (disabled_cores * 3) - (gpu_disabled * 3);
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u32 cooling_dev[array_cnt];
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int nodeoff, ret, i, cnt;
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for (i = 0; i < ARRAY_SIZE(thermal_path); i++) {
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nodeoff = fdt_path_offset(blob, thermal_path[i]);
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if (nodeoff < 0) {
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printf("path not found %s\n", thermal_path[i]);
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continue; /* Not found, skip it */
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}
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cnt = get_cooling_device_list(blob, nodeoff,
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thermal_path[i], cooling_dev, array_cnt);
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/* VPU map does not exist in cooling dev*/
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if (cnt <= ((num_cpus - disabled_cores) * 3 + (gpu_disabled ? 0 : 3)))
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continue;
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/* Remove VPU it the last two nodes in the fdt ana blob */
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ret = fdt_setprop(blob, nodeoff, "cooling-device", &cooling_dev,
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sizeof(u32) * (array_cnt - 3));
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if (ret < 0) {
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printf("Warning: %s, cooling-device setprop failed %d\n",
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thermal_path[i], ret);
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continue;
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}
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printf("Update node %s, cooling-device prop\n", thermal_path[i]);
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}
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}
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static void disable_thermal_gpu_node(void *blob, u32 disabled_cores)
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{
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static const char * const thermal_path[] = {
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"/thermal-zones/ana/cooling-maps/map0",
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"/thermal-zones/ana-thermal/cooling-maps/map0",
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};
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int num_cpus = (is_imx94() || is_imx952()) ? 4 : 6;
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u32 array_cnt = (num_cpus + 2) * 3 - (disabled_cores * 3);
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u32 cooling_dev[array_cnt];
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int nodeoff, ret, i, cnt;
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for (i = 0; i < ARRAY_SIZE(thermal_path); i++) {
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nodeoff = fdt_path_offset(blob, thermal_path[i]);
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if (nodeoff < 0) {
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printf("path not found %s\n", thermal_path[i]);
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continue; /* Not found, skip it */
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}
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cnt = get_cooling_device_list(blob, nodeoff, thermal_path[i],
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cooling_dev, array_cnt);
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if (cnt <= (num_cpus - disabled_cores) * 3)
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continue; /* GPU map does not exist in cooling dev*/
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/* Remove GPU and VPU as these are the last two nodes in the fdt ana blob */
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ret = fdt_setprop(blob, nodeoff, "cooling-device", &cooling_dev,
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sizeof(u32) * (array_cnt - 6));
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if (ret < 0) {
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printf("Warning: %s, cooling-device setprop failed %d\n",
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thermal_path[i], ret);
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continue;
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}
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if (cnt == array_cnt) {
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/* Add VPU node back to ana thermal-zone. */
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ret = fdt_appendprop(blob, nodeoff, "cooling-device",
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&cooling_dev[array_cnt - 3], sizeof(u32) * 3);
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if (ret < 0) {
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printf("Warning: %s, cooling-device appendprop failed %d\n",
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thermal_path[i], ret);
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continue;
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}
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}
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printf("Update node %s, cooling-device prop\n", thermal_path[i]);
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}
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}
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static void disable_thermal_cpu_nodes(void *blob, u32 disabled_cores)
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{
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static const char * const thermal_path[] = {
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"/thermal-zones/pf53_arm/cooling-maps/map0",
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"/thermal-zones/ana/cooling-maps/map0",
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"/thermal-zones/a55/cooling-maps/map0",
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"/thermal-zones/a55-thermal/cooling-maps/map0",
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"/thermal-zones/ana-thermal/cooling-maps/map0",
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};
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u32 cooling_dev[24];
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int nodeoff, ret, i, cnt;
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int prop_size = 3 * ((is_imx94() || is_imx952()) ? 4 : 6);
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for (i = 0; i < ARRAY_SIZE(thermal_path); i++) {
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nodeoff = fdt_path_offset(blob, thermal_path[i]);
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if (nodeoff < 0) {
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printf("path not found %s\n", thermal_path[i]);
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continue; /* Not found, skip it */
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}
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cnt = get_cooling_device_list(blob, nodeoff, thermal_path[i], cooling_dev, 24);
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ret = fdt_setprop(blob, nodeoff, "cooling-device", &cooling_dev,
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sizeof(u32) * (prop_size - disabled_cores * 3));
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if (ret < 0) {
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printf("Warning: %s, cooling-device setprop failed %d\n",
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thermal_path[i], ret);
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continue;
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}
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/* Add GPU and VPU nodes back to ana thermal-zone. */
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if (cnt > prop_size) {
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ret = fdt_appendprop(blob, nodeoff, "cooling-device",
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&cooling_dev[prop_size],
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sizeof(u32) * (cnt - prop_size));
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if (ret < 0) {
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printf("Warning: %s, cooling-device appendprop failed %d\n",
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thermal_path[i], ret);
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continue;
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}
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}
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printf("Update node %s, cooling-device prop\n", thermal_path[i]);
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}
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}
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static int disable_ld_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_ld[] = {
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"/remoteproc",
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"/disp-mu",
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"/soc/syscon@4b070000",
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"/soc/mailbox@4b080000",
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"/soc/mailbox@4b090000",
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};
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return delete_fdt_nodes(blob, nodes_path_ld, ARRAY_SIZE(nodes_path_ld));
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}
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static int disable_npu_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_npu[] = {
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"/soc/imx95-neutron-remoteproc@4ab00000",
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"/soc/imx95-neutron@4ab00004",
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"/soc/neutron-remoteproc@4ab00000",
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"/soc/neutron@4ab00004",
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};
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return delete_fdt_nodes(blob, nodes_path_npu, ARRAY_SIZE(nodes_path_npu));
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}
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static int disable_arm_cpu_nodes(void *blob, u32 fuse_val)
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{
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u32 i = 0;
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int rc;
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int nodeoff;
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char nodes_path[32];
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int num_cpus = (is_imx94() || is_imx952()) ? 4 : 6;
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num_a55_cores_disabled = 0;
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if (fuse_val & BIT(2)) /* A55C2 */
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num_a55_cores_disabled++;
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if (fuse_val & BIT(3)) /* A55C2 */
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num_a55_cores_disabled++;
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if (fuse_val & BIT(4)) /* A55C3 */
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num_a55_cores_disabled++;
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if (fuse_val & BIT(5)) /* A55C4 */
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num_a55_cores_disabled++;
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if (fuse_val & BIT(6)) /* A55C5 */
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num_a55_cores_disabled++;
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for (i = num_cpus; i > (num_cpus - num_a55_cores_disabled); i--) {
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sprintf(nodes_path, "/cpus/cpu@%u00", i - 1);
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nodeoff = fdt_path_offset(blob, nodes_path);
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if (nodeoff < 0)
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continue; /* Not found, skip it */
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debug("Found %s node\n", nodes_path);
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rc = fdt_del_node(blob, nodeoff);
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if (rc < 0) {
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printf("Unable to delete node %s, err=%s\n",
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nodes_path, fdt_strerror(rc));
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} else {
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printf("Delete node %s\n", nodes_path);
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/* Remove node from cpu-map/cluster0 */
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sprintf(nodes_path, "/cpus/cpu-map/cluster0/core%u", i - 1);
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nodeoff = fdt_path_offset(blob, nodes_path);
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if (nodeoff < 0)
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continue; /* Not found, skip it */
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rc = fdt_del_node(blob, nodeoff);
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if (rc < 0)
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printf("Unable to delete node %s, err=%s\n",
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nodes_path, fdt_strerror(rc));
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}
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}
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disable_thermal_cpu_nodes(blob, num_a55_cores_disabled);
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return 0;
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}
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static int disable_jpegdec_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_jpegdec[] = {
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"/soc/jpegdec@4c500000",
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};
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return delete_fdt_nodes(blob, nodes_path_jpegdec, ARRAY_SIZE(nodes_path_jpegdec));
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}
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static int disable_jpegenc_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_jpegenc[] = {
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"/soc/jpegenc@4c550000",
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};
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return delete_fdt_nodes(blob, nodes_path_jpegenc, ARRAY_SIZE(nodes_path_jpegenc));
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}
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static int disable_mipicsi0_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_mipicsi0[] = {
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"/soc/csi@4ad30000",
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};
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return delete_fdt_nodes(blob, nodes_path_mipicsi0, ARRAY_SIZE(nodes_path_mipicsi0));
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}
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static int disable_mipicsi1_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_mipicsi1[] = {
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"/soc/csi@4ad40000",
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};
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return delete_fdt_nodes(blob, nodes_path_mipicsi1, ARRAY_SIZE(nodes_path_mipicsi1));
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}
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static int disable_isp_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_isp[] = {
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"/soc@0/isp@4ae00000",
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"/soc/isp@4ae00000",
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};
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return delete_fdt_nodes(blob, nodes_path_isp, ARRAY_SIZE(nodes_path_isp));
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}
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static int disable_vpu_node(void *blob, u32 fuse_val)
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{
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int ret = 0;
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static const char * const nodes_path_vpu[] = {
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"/soc/vpu-ctrl@4c4c0000",
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"/soc/vpu-ctrl@4c4f0000",
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"/soc/vpu@4c480000",
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"/soc/vpu@4c490000",
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"/soc/vpu@4c4a0000",
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"/soc/vpu@4c4b0000",
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"/soc/vpu@4c4c0000",
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"/soc/vpu@4c4d0000",
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"/soc/vpu@4c4e0000",
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"/soc/jpegdec@4c500000",
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"/soc/jpegenc@4c550000",
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"/soc/vpuenc@4c460000",
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"/soc/syscon@4c410000"
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};
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ret = delete_fdt_nodes(blob, nodes_path_vpu, ARRAY_SIZE(nodes_path_vpu));
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if (!ret)
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disable_thermal_vpu_node(blob, num_a55_cores_disabled, gpu_disabled);
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return ret;
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}
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static int disable_vpuenc_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_vpuenc[] = {
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"/soc/vpuenc@4c460000",
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};
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return delete_fdt_nodes(blob, nodes_path_vpuenc, ARRAY_SIZE(nodes_path_vpuenc));
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}
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static int disable_vpuwave511_node(void *blob, u32 fuse_val)
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{
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static const char * const nodes_path_vpu511[] = {
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"/soc/vpu-ctrl@4c4f0000",
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"/soc/vpu@4c4b0000",
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"/soc/vpu@4c4c0000",
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"/soc/vpu@4c4d0000",
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"/soc/vpu@4c4e0000",
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};
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return delete_fdt_nodes(blob, nodes_path_vpu511, ARRAY_SIZE(nodes_path_vpu511));
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}
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static int disable_gpu_node(void *blob, u32 fuse_val)
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{
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int ret = 0;
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static const char * const nodes_path_gpu[] = {
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"/soc/gpu@4d900000",
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"/thermal-zones@1/ana/cooling-maps/map1/cooling-device/gpu@4d900000",
|
||||
"/thermal-zones/ana/cooling-maps/map1/cooling-device/gpu@4d900000",
|
||||
"/thermal-zones@1/ana/cooling-maps/map1/cooling-device",
|
||||
"/thermal-zones/ana/cooling-maps/map1/cooling-device",
|
||||
"/thermal-zones@1/ana/cooling-maps/map1",
|
||||
"/thermal-zones/ana/cooling-maps/map1",
|
||||
};
|
||||
|
||||
ret = delete_fdt_nodes(blob, nodes_path_gpu, ARRAY_SIZE(nodes_path_gpu));
|
||||
if (!ret) {
|
||||
disable_thermal_gpu_node(blob, num_a55_cores_disabled);
|
||||
gpu_disabled = 1;
|
||||
}
|
||||
return ret;
|
||||
}
|
||||
|
||||
static int disable_pciea_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_pciea[] = {
|
||||
"/soc/pcie@4c300000",
|
||||
"/soc/pcie-ep@4c300000"
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_pciea, ARRAY_SIZE(nodes_path_pciea));
|
||||
}
|
||||
|
||||
static int disable_pcieb_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_pcieb[] = {
|
||||
"/soc/pcie@4c380000",
|
||||
"/soc/pcie-ep@4c380000"
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_pcieb, ARRAY_SIZE(nodes_path_pcieb));
|
||||
}
|
||||
|
||||
int disable_enet10g_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_enet10g[] = {
|
||||
"/pcie@4ca00000/ethernet@10,0",
|
||||
"/soc/pcie@4ca00000/ethernet@10,0",
|
||||
"/soc/syscon@4ca00000/ethernet@10,0",
|
||||
"/soc/netc-blk-ctrl@4cde0000/pcie@4ca00000/ethernet@10,0",
|
||||
};
|
||||
|
||||
return disable_fdt_nodes(blob, nodes_path_enet10g, ARRAY_SIZE(nodes_path_enet10g),
|
||||
NULL, NULL);
|
||||
}
|
||||
|
||||
int disable_enet25g_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_enet25g[] = {
|
||||
"/soc/system-controller@4ceb0000/pcie@4ca00000/ethernet-switch@0,2/ports/port@0",
|
||||
"/soc/system-controller@4ceb0000/pcie@4ca00000/ethernet-switch@0,2/ports/port@1",
|
||||
};
|
||||
|
||||
return disable_fdt_nodes(blob, nodes_path_enet25g, ARRAY_SIZE(nodes_path_enet25g),
|
||||
"phy-mode", "sgmii");
|
||||
}
|
||||
|
||||
int disable_mipidsi_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_mipidsi[] = {
|
||||
"/soc/dsi@4acf0000",
|
||||
"/soc/syscon@4acf0000",
|
||||
"/soc/dsi@4b060000",
|
||||
"/soc/phy@4b110000",
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_mipidsi, ARRAY_SIZE(nodes_path_mipidsi));
|
||||
}
|
||||
|
||||
int disable_dpu_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_dpu[] = {
|
||||
"/soc/bridge@4b0d0000/channel@0/port@0/endpoint",
|
||||
"/soc/bridge@4b0d0000/channel@0/port@1/endpoint",
|
||||
"/soc/bridge@4b0d0000/channel@1/port@0/endpoint",
|
||||
"/soc/bridge@4b0d0000/channel@1/port@1/endpoint",
|
||||
"/soc/display-controller@4b400000/ports/port@0/endpoint",
|
||||
"/soc/display-controller@4b400000/ports/port@1/endpoint",
|
||||
"/soc/display-controller@4b400000",
|
||||
"/soc/syscon@4b010000/bridge@8/ports/port@0/endpoint",
|
||||
"/soc/syscon@4b010000/bridge@8/ports/port@1/endpoint",
|
||||
"/soc/syscon@4b010000/bridge@8/ports/port@2/endpoint@0",
|
||||
"/soc/syscon@4b010000/bridge@8/ports/port@2/endpoint@1",
|
||||
"/soc/syscon@4b010000/bridge@8/ports/port@3/endpoint@0",
|
||||
"/soc/syscon@4b010000/bridge@8/ports/port@3/endpoint@1",
|
||||
"/soc/syscon@4b010000/bridge@8",
|
||||
"/soc/syscon@4b010000",
|
||||
"/soc/syscon@4b0a0000",
|
||||
"/soc/interrupt-controller@4b0b0000",
|
||||
"/soc/bridge@4b0d0000"
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_dpu, ARRAY_SIZE(nodes_path_dpu));
|
||||
}
|
||||
|
||||
int disable_lvds_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_lvds[] = {
|
||||
"/soc/syscon@4b0c0000/ldb@4/channel@0",
|
||||
"/soc/syscon@4b0c0000/phy@8",
|
||||
"/soc/syscon@4b0c0000/ldb@4/channel@1",
|
||||
"/soc/syscon@4b0c0000/phy@c",
|
||||
"/soc/syscon@4b0c0000"
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_lvds, ARRAY_SIZE(nodes_path_lvds));
|
||||
}
|
||||
|
||||
int disable_cm70_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_cm70[] = {
|
||||
"/reserved-memory/vdev0vring0@82000000",
|
||||
"/reserved-memory/vdev0vring1@82008000",
|
||||
"/reserved-memory/vdev1vring0@82010000",
|
||||
"/reserved-memory/vdev1vring1@82018000",
|
||||
"/reserved-memory/rsc-table@82220000",
|
||||
"/reserved-memory/vdevbuffer@82020000",
|
||||
"/imx943-cm70",
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_cm70, ARRAY_SIZE(nodes_path_cm70));
|
||||
}
|
||||
|
||||
int disable_cm71_node(void *blob, u32 fuse_val)
|
||||
{
|
||||
static const char * const nodes_path_cm71[] = {
|
||||
"/reserved-memory/vdev0vring0@84000000",
|
||||
"/reserved-memory/vdev0vring1@84008000",
|
||||
"/reserved-memory/vdev1vring0@84010000",
|
||||
"/reserved-memory/vdev1vring1@84018000",
|
||||
"/reserved-memory/rsc-table@84220000",
|
||||
"/reserved-memory/vdevbuffer@84020000",
|
||||
"/imx943-cm71",
|
||||
};
|
||||
|
||||
return delete_fdt_nodes(blob, nodes_path_cm71, ARRAY_SIZE(nodes_path_cm71));
|
||||
}
|
||||
|
||||
/* There is order dependency between cpu->gpu->vpu */
|
||||
struct periph_fuse_info f17_grp[] = {
|
||||
{ BIT(30), MXC_CPU_IMX952, false, disable_ld_node },
|
||||
};
|
||||
|
||||
struct periph_fuse_info f18_grp[] = {
|
||||
{ BIT(0), 0, false, disable_npu_node },
|
||||
{ GENMASK(6, 2), 0, false, disable_arm_cpu_nodes },
|
||||
{ BIT(9), 0, true, disable_cm70_node },
|
||||
{ BIT(17), MXC_CPU_IMX94, true, disable_cm71_node },
|
||||
{ BIT(22), 0, true, disable_dpu_node },
|
||||
{ BIT(27), 0, true, disable_lvds_node },
|
||||
{ BIT(29), 0, false, disable_isp_node },
|
||||
};
|
||||
|
||||
struct periph_fuse_info f19_grp[] = {
|
||||
{ BIT(6), 0, true, disable_pciea_node },
|
||||
{ BIT(7), 0, true, disable_pcieb_node },
|
||||
{ BIT(17), 0, false, disable_gpu_node },
|
||||
{ BIT(18), 0, false, disable_vpu_node },
|
||||
{ BIT(19), 0, false, disable_jpegenc_node },
|
||||
{ BIT(20), 0, false, disable_jpegdec_node },
|
||||
{ BIT(22), 0, false, disable_mipicsi0_node },
|
||||
{ BIT(23), 0, false, disable_mipicsi1_node },
|
||||
{ BIT(24), 0, true, disable_mipidsi_node },
|
||||
{ BIT(26), 0, false, disable_vpuenc_node },
|
||||
{ BIT(27), 0, false, disable_vpuwave511_node },
|
||||
};
|
||||
|
||||
struct periph_fuse_info f20_grp[] = {
|
||||
{ BIT(12), MXC_CPU_IMX95, true, disable_enet10g_node },
|
||||
{ BIT(12), MXC_CPU_IMX94, true, disable_enet25g_node },
|
||||
};
|
||||
|
||||
static void ft_disable_periph(void *blob, u32 fuse_bank, u32 fuse_word,
|
||||
struct periph_fuse_info *info, u32 info_num,
|
||||
bool board_fix_fdt)
|
||||
{
|
||||
int i, ret;
|
||||
u32 val = 0;
|
||||
|
||||
ret = fuse_read(fuse_bank, fuse_word, &val);
|
||||
if (ret)
|
||||
return;
|
||||
|
||||
for (i = 0; i < info_num; i++) {
|
||||
if (val & info[i].bit_mask) {
|
||||
if (board_fix_fdt && !info[i].of_board_fix)
|
||||
continue;
|
||||
|
||||
if (!info[i].soc_type || is_cpu_type(info[i].soc_type))
|
||||
info[i].disable_func(blob, val);
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
int ft_system_setup(void *blob, struct bd_info *bd)
|
||||
{
|
||||
/* Common peripheral disable fuse process */
|
||||
ft_disable_periph(blob, 2, 1, f17_grp, ARRAY_SIZE(f17_grp), false);
|
||||
ft_disable_periph(blob, 2, 2, f18_grp, ARRAY_SIZE(f18_grp), false);
|
||||
ft_disable_periph(blob, 2, 3, f19_grp, ARRAY_SIZE(f19_grp), false);
|
||||
ft_disable_periph(blob, 2, 4, f20_grp, ARRAY_SIZE(f20_grp), false);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* Fix uboot dtb based on fuses. */
|
||||
#if IS_ENABLED(CONFIG_OF_BOARD_FIXUP) && !IS_ENABLED(CONFIG_XPL_BUILD)
|
||||
int imx9_uboot_fixup_by_fuse(void *fdt)
|
||||
{
|
||||
ft_disable_periph(fdt, 2, 2, f18_grp, ARRAY_SIZE(f18_grp), true);
|
||||
ft_disable_periph(fdt, 2, 3, f19_grp, ARRAY_SIZE(f19_grp), true);
|
||||
ft_disable_periph(fdt, 2, 4, f20_grp, ARRAY_SIZE(f20_grp), true);
|
||||
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
@@ -873,18 +873,6 @@ int arch_misc_init(void)
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if defined(CONFIG_OF_BOARD_FIXUP) && !defined(CONFIG_SPL_BUILD)
|
||||
int board_fix_fdt(void *fdt)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
#endif
|
||||
|
||||
int ft_system_setup(void *blob, struct bd_info *bd)
|
||||
{
|
||||
return 0;
|
||||
}
|
||||
|
||||
#if IS_ENABLED(CONFIG_ENV_VARS_UBOOT_RUNTIME_CONFIG)
|
||||
void get_board_serial(struct tag_serialnr *serialnr)
|
||||
{
|
||||
|
||||
Reference in New Issue
Block a user