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

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Need probe the S400 MU device in arch_cpu_init_dm, so we can use
S400 API in u-boot

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 2021-08-07 16:01:00 +08:00 committed by Stefano Babic
parent 3912d4b273
commit a7990a88b9
1 changed files with 34 additions and 1 deletions
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35
arch/arm/mach-imx/imx8ulp/soc.c
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@ -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>
DECLARE_GLOBAL_DATA_PTR;
@ -322,7 +328,18 @@ int dram_init(void)
#ifdef CONFIG_SERIAL_TAG
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);
else
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];
}
#endif
@ -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)
{