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imx: imx8qm/qxp: add get_board_serial

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Add get_board_serial support, the info could be got from fuse.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
This commit is contained in:
Peng Fan 2020-05-05 20:28:39 +08:00 committed by Stefano Babic
parent 7c351ff5e0
commit 8103767256
1 changed files with 32 additions and 0 deletions
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32
arch/arm/mach-imx/imx8/cpu.c
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@ -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)
{