diff options
| author | Ye Li <ye.li@nxp.com> | 2021-08-07 11:01:00 +0300 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2021-08-09 15:46:51 +0300 |
| commit | a7990a88b915ab82e646c5a2c3d0d4f6b01b3c28 (patch) | |
| tree | c84aa84997983bd2b8404081a2475769f5923771 /arch | |
| parent | 3912d4b27362ee2d7cb6cf4565dd2da6582d8211 (diff) | |
| download | u-boot-a7990a88b915ab82e646c5a2c3d0d4f6b01b3c28.tar.xz | |
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: Ye Li <ye.li@nxp.com>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-imx/imx8ulp/soc.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c index c5e20408c6..8828a94318 100644 --- a/arch/arm/mach-imx/imx8ulp/soc.c +++ b/arch/arm/mach-imx/imx8ulp/soc.c @@ -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) { |