Boot configuration stored in EXT_CSD_PART_CONF register is completely ignored by BootROM.
Fixes: fa03279e198d ("tools: kwboot: Add image type documentation") Signed-off-by: Pali Rohár pali@kernel.org --- tools/kwboot.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-)
diff --git a/tools/kwboot.c b/tools/kwboot.c index 6bef4610ff8f..550d2494ff68 100644 --- a/tools/kwboot.c +++ b/tools/kwboot.c @@ -119,9 +119,12 @@ * 1024 bytes long sector sizes and also can be changed at runtime. * * For MMC-compatible devices, image can be stored at offset 0 or at offset - * 2 MB. If MMC device supports HW boot partitions then image must be stored - * on the HW partition as is configured in the EXT_CSC register (it can be - * either boot or user data). + * 2 MB. If eMMC device supports HW/boot partitions then image is read from + * partitions in following order: Boot 1, Boot 2, RPMB, GP 1, GP 2, GP 3, + * GP 4, User Data, Boot 1, Boot 2. (Boot 1 and Boot 2 are really repeated). + * Boot configuration stored in EXT_CSD_PART_CONF eMMC register is completely + * ignored by the BootROM. But it sets PARTITION_ACCESS bits of that register + * to the selected partition from which it loaded image. * * Note that source address for SDIO image is stored in byte unit, like for * any other images (except SATA). Marvell Functional Specifications for