On eMMC, the erase_grp_size > 1 so the address and size for the erase
block command can be unaligned on erase group size and some strange
trace occurs and the result is not guarantee by MMC devices.
The SD-Card behavior don't change as erase_grp_size = 1 for SD-Card.
For example, on eMMC present on STM32MP15C-EV1, before the patch:
STM32MP> env erase
Erasing Environment on MMC...
Caution! Your devices Erase group is 0x400
The erase range would be change to 0x2000~0x27ff
16 blocks erased: OK
Caution! Your devices Erase group is 0x400
The erase range would be change to 0x2000~0x23ff
16 blocks erased: OK
OK
After this patch:
STM32MP> env erase
Erasing Environment on MMC...
1024 blocks erased at 0x2000: OK
1024 blocks erased at 0x2000: OK
OK
Here the 2 copies of U-Boot environment are in the same devices Erase
group: it is erased twice.
Signed-off-by: Patrick Delaunay <patrick.delaunay@foss.st.com>
Change-Id: I26fa615c6898db0d17024664b17b20412638bfd7
Reviewed-on: https://gerrit.st.com/c/mpu/oe/st/u-boot/+/238836
Reviewed-by: CITOOLS <MDG-smet-aci-reviews@list.st.com>
Reviewed-by: Patrice CHOTARD <patrice.chotard@foss.st.com>
010f0e12ba