diff options
Diffstat (limited to 'arch/arm/mach-imx/imx8m')
| -rw-r--r-- | arch/arm/mach-imx/imx8m/soc.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-imx/imx8m/soc.c b/arch/arm/mach-imx/imx8m/soc.c index 7bfba4febcf..ce67b439e87 100644 --- a/arch/arm/mach-imx/imx8m/soc.c +++ b/arch/arm/mach-imx/imx8m/soc.c @@ -28,8 +28,10 @@ #include <errno.h> #include <fdt_support.h> #include <fsl_wdog.h> +#include <fuse.h> #include <imx_sip.h> #include <linux/bitops.h> +#include <linux/bitfield.h> DECLARE_GLOBAL_DATA_PTR; @@ -727,6 +729,43 @@ int spl_mmc_emmc_boot_partition(struct mmc *mmc) } #endif +#if defined(CONFIG_IMX8MN) || defined(CONFIG_IMX8MP) +#define IMG_CNTN_SET1_OFFSET GENMASK(22, 19) +unsigned long arch_spl_mmc_get_uboot_raw_sector(struct mmc *mmc, + unsigned long raw_sect) +{ + u32 val, offset; + + if (fuse_read(2, 1, &val)) { + debug("Error reading fuse!\n"); + return raw_sect; + } + + val = FIELD_GET(IMG_CNTN_SET1_OFFSET, val); + if (val > 10) { + debug("Secondary image boot disabled!\n"); + return raw_sect; + } + + if (val == 0) + offset = SZ_4M; + else if (val == 1) + offset = SZ_2M; + else if (val == 2) + offset = SZ_1M; + else /* flash.bin offset = 1 MiB * 2^n */ + offset = SZ_1M << val; + + offset /= 512; + offset -= CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_DATA_PART_OFFSET; + + if (imx8m_detect_secondary_image_boot()) + raw_sect += offset; + + return raw_sect; +} +#endif + bool is_usb_boot(void) { return get_boot_device() == USB_BOOT; |