diff options
| author | Peng Fan <peng.fan@nxp.com> | 2020-05-05 20:28:39 +0800 |
|---|---|---|
| committer | Stefano Babic <sbabic@denx.de> | 2020-05-10 20:55:20 +0200 |
| commit | 8103767256dde5e0ca949790f0896268ae0832d3 (patch) | |
| tree | 3fd71a2c5fad07a8700dfce4b241fd2e52124fbd /arch/arm/mach-imx/imx8/cpu.c | |
| parent | 7c351ff5e0e50359d9feb49272650bd01417f721 (diff) | |
imx: imx8qm/qxp: add get_board_serial
Add get_board_serial support, the info could be got from fuse.
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Diffstat (limited to 'arch/arm/mach-imx/imx8/cpu.c')
| -rw-r--r-- | arch/arm/mach-imx/imx8/cpu.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8/cpu.c b/arch/arm/mach-imx/imx8/cpu.c index 2c79bd0091..3bd0dee025 100644 --- a/arch/arm/mach-imx/imx8/cpu.c +++ b/arch/arm/mach-imx/imx8/cpu.c @@ -19,6 +19,7 @@ #include <asm/arch-imx/cpu.h> #include <asm/armv8/cpu.h> #include <asm/armv8/mmu.h> +#include <asm/setup.h> #include <asm/mach-imx/boot_mode.h> DECLARE_GLOBAL_DATA_PTR; @@ -162,6 +163,37 @@ enum boot_device get_boot_device(void) return boot_dev; } +#ifdef CONFIG_SERIAL_TAG +#define FUSE_UNIQUE_ID_WORD0 16 +#define FUSE_UNIQUE_ID_WORD1 17 +void get_board_serial(struct tag_serialnr *serialnr) +{ + sc_err_t err; + u32 val1 = 0, val2 = 0; + u32 word1, word2; + + if (!serialnr) + return; + + word1 = FUSE_UNIQUE_ID_WORD0; + word2 = FUSE_UNIQUE_ID_WORD1; + + err = sc_misc_otp_fuse_read(-1, word1, &val1); + if (err != SC_ERR_NONE) { + printf("%s fuse %d read error: %d\n", __func__, word1, err); + return; + } + + err = sc_misc_otp_fuse_read(-1, word2, &val2); + if (err != SC_ERR_NONE) { + printf("%s fuse %d read error: %d\n", __func__, word2, err); + return; + } + serialnr->low = val1; + serialnr->high = val2; +} +#endif /*CONFIG_SERIAL_TAG*/ + #ifdef CONFIG_ENV_IS_IN_MMC __weak int board_mmc_get_env_dev(int devno) { |