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-rw-r--r--disk/Kconfig10
-rw-r--r--disk/part_efi.c11
2 files changed, 21 insertions, 0 deletions
diff --git a/disk/Kconfig b/disk/Kconfig
index ffa835eb354..b0bd02539ee 100644
--- a/disk/Kconfig
+++ b/disk/Kconfig
@@ -49,6 +49,16 @@ config SPL_MAC_PARTITION
default y if MAC_PARTITION
select SPL_PARTITIONS
+config TEGRA_PARTITION
+ bool "Enable Nvidia Tegra partition table"
+ select PARTITIONS
+ select EFI_PARTITION
+ help
+ Say Y here if you would like to use U-Boot on a device that
+ is using the Nvidia Tegra partition table and cannot alter it.
+
+ If unsure, say N.
+
config DOS_PARTITION
bool "Enable MS Dos partition table"
default y if BOOT_DEFAULTS
diff --git a/disk/part_efi.c b/disk/part_efi.c
index 580821a6ee9..7f04c6ecd69 100644
--- a/disk/part_efi.c
+++ b/disk/part_efi.c
@@ -318,6 +318,17 @@ static int part_test_efi(struct blk_desc *desc)
/* Read legacy MBR from block 0 and validate it */
if ((blk_dread(desc, 0, 1, (ulong *)legacymbr) != 1)
|| (is_pmbr_valid(legacymbr) != 1)) {
+ /*
+ * TegraPT is compatible with EFI part, but it
+ * cannot pass the Protective MBR check. Skip it
+ * if CONFIG_TEGRA_PARTITION is enabled and the
+ * device in question is eMMC.
+ */
+ if (IS_ENABLED(CONFIG_TEGRA_PARTITION))
+ if (!is_pmbr_valid(legacymbr) &&
+ desc->uclass_id == UCLASS_MMC &&
+ !desc->devnum)
+ return 0;
return -1;
}
return 0;