Hi Mikhail, On 1/19/26 1:36 AM, Mikhail Kshevetskiy wrote:
GPT disk partition with max available number (ex: /dev/mmcblk128) can't be read/write from U-Boot using read/write command. Here is an example:=> mmc part Partition Map for mmc device 0 -- Partition Type: EFI Part Start LBA End LBA Name Attributes Type GUID Partition GUID 1 0x00001000 0x000013ff "env1" attrs: 0x0000000000000000 type: 0fc63daf-8483-4772-8e79-3d69d8477de4 guid: 5452574f-2211-4433-5566-778899aabb02 2 0x00001400 0x000017ff "env2" attrs: 0x0000000000000000 type: 0fc63daf-8483-4772-8e79-3d69d8477de4 guid: 5452574f-2211-4433-5566-778899aabb03 ................. 8 0x00158000 0x0034bfff "apps" attrs: 0x0000000000000000 type: 0fc63daf-8483-4772-8e79-3d69d8477de4 guid: 5452574f-2211-4433-5566-778899aabb09 128 0x00000420 0x00000fff "fip" attrs: 0x0000000000000000 type: c12a7328-f81f-11d2-ba4b-00a0c93ec93b guid: 5452574f-2211-4433-5566-778899aabb01 => read mmc 0#fip ${loadaddr} 0 4 Could not find "fip" partition ** Bad device specification mmc 0#fip ** ** Bad device specification mmc 0#fip ** Couldn't find partition mmc 0#fip The error is caused by invalid boundary checks. This patch fixes an issue. Fixes: 43fd4bcefd4e ("disk: part: implement generic function part_get_info_by_uuid()") Fixes: 56670d6fb83f ("disk: part: use common api to lookup part driver") Signed-off-by: Mikhail Kshevetskiy <[email protected]>
Acked-by: Quentin Schulz <[email protected]> Thanks! Quentin

