[PATCH V5 39/44] imx8ulp: Add workaround for eMMC boot
Peng Fan (OSS)
peng.fan at oss.nxp.com
Sat Aug 7 10:01:08 CEST 2021
From: Ye Li <ye.li at nxp.com>
When booting from boot part1/2, the image offset should be 0, but
ROM has a bug to return 0x8000. Has to workaround the issue before
ROM fix it.
Use a ROM function to know boot from emmc boot part or user part
So we can set the image offset accordingly.
Signed-off-by: Ye Li <ye.li at nxp.com>
---
arch/arm/mach-imx/image-container.c | 7 +++++++
arch/arm/mach-imx/imx8ulp/soc.c | 10 ++++++++++
2 files changed, 17 insertions(+)
diff --git a/arch/arm/mach-imx/image-container.c b/arch/arm/mach-imx/image-container.c
index c3f62872c6..68b30bcfc5 100644
--- a/arch/arm/mach-imx/image-container.c
+++ b/arch/arm/mach-imx/image-container.c
@@ -265,10 +265,17 @@ unsigned long spl_nor_get_uboot_base(void)
#endif
#ifdef CONFIG_SPL_BOOTROM_SUPPORT
+u32 __weak spl_arch_boot_image_offset(u32 image_offset, u32 rom_bt_dev)
+{
+ return image_offset;
+}
+
ulong spl_romapi_get_uboot_base(u32 image_offset, u32 rom_bt_dev)
{
ulong end;
+ image_offset = spl_arch_boot_image_offset(image_offset, rom_bt_dev);
+
end = get_imageset_end((void *)(ulong)image_offset, ROM_API_DEV);
end = ROUND(end, SZ_1K);
diff --git a/arch/arm/mach-imx/imx8ulp/soc.c b/arch/arm/mach-imx/imx8ulp/soc.c
index 96d65690c4..1c33acc7dd 100644
--- a/arch/arm/mach-imx/imx8ulp/soc.c
+++ b/arch/arm/mach-imx/imx8ulp/soc.c
@@ -533,3 +533,13 @@ void imx_get_mac_from_fuse(int dev_id, unsigned char *mac)
{
memset(mac, 0, 6);
}
+
+int (*card_emmc_is_boot_part_en)(void) = (void *)0x67cc;
+u32 spl_arch_boot_image_offset(u32 image_offset, u32 rom_bt_dev)
+{
+ /* Hard code for eMMC image_offset on 8ULP ROM, need fix by ROM, temp workaround */
+ if (((rom_bt_dev >> 16) & 0xff) == BT_DEV_TYPE_MMC && card_emmc_is_boot_part_en())
+ image_offset = 0;
+
+ return image_offset;
+}
--
2.30.0
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