[PATCH v2 u-boot-mvebu 1/4] tools: kwboot: Fix MMC partitions documentation

[Pali Rohár]

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 at 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
-- 
2.20.1