TegraPT is compatible with EFI part but it can't pass Protective MBR check. Skip this check if CONFIG_TEGRA_PARTITION is enabled, storage uclass is MMC and devnum is 0. Note, eMMC on supported devices MUST be aliased to mmc0.

Signed-off-by: Svyatoslav Ryhel clamor95@gmail.com --- disk/Kconfig | 8 ++++++++ disk/part_efi.c | 13 +++++++++++++ 2 files changed, 21 insertions(+)

diff --git a/disk/Kconfig b/disk/Kconfig index ffa835eb35..75a849ec8c 100644 --- a/disk/Kconfig +++ b/disk/Kconfig @@ -49,6 +49,14 @@ 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 with + Nvidia Tegra partition table. + 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 b1a03bd165..3afc871409 100644 --- a/disk/part_efi.c +++ b/disk/part_efi.c @@ -318,6 +318,19 @@ 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 Protective MBR check. Skip it + * if CONFIG_TEGRA_PARTITION is enabled and + * device is 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;