Commit a7990a88 authored by Ye Li's avatar Ye Li Committed by Stefano Babic
Browse files

arm: imx8ulp: Probe the S400 MU device in arch init

Need probe the S400 MU device in arch_cpu_init_dm, so we can use
S400 API in u-boot
Signed-off-by: default avatarYe Li <>
Signed-off-by: Peng Fan's avatarPeng Fan <>
parent 3912d4b2
......@@ -16,6 +16,12 @@
#include <asm/arch/mu_hal.h>
#include <cpu_func.h>
#include <asm/setup.h>
#include <dm.h>
#include <dm/device-internal.h>
#include <dm/lists.h>
#include <dm/uclass.h>
#include <dm/device.h>
#include <dm/uclass-internal.h>
......@@ -322,7 +328,18 @@ int dram_init(void)
void get_board_serial(struct tag_serialnr *serialnr)
/* TODO */
u32 uid[4];
u32 res;
int ret;
ret = ahab_read_common_fuse(1, uid, 4, &res);
if (ret)
printf("ahab read fuse failed %d, 0x%x\n", ret, res);
printf("UID 0x%x,0x%x,0x%x,0x%x\n", uid[0], uid[1], uid[2], uid[3]);
serialnr->low = uid[0];
serialnr->high = uid[3];
......@@ -396,6 +413,22 @@ int arch_cpu_init(void)
return 0;
int arch_cpu_init_dm(void)
struct udevice *devp;
int node, ret;
node = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "fsl,imx8ulp-mu");
ret = uclass_get_device_by_of_offset(UCLASS_MISC, node, &devp);
if (ret) {
printf("could not get S400 mu %d\n", ret);
return ret;
return 0;
#if defined(CONFIG_SPL_BUILD)
__weak void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
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