There seems to be a problem handling emmc with configured GP partition.
Below the "mmc info". The problem might be that user capacity is calculated/shown as "0". At least it shows the GP1 partition with correct size - which is not the case for "mmc hwpartition" - it denies its existence ;)
Can someone help me to fix this?
Thanks a lot. - Arno
mmc info
Device: sdhci at e0100000 Manufacturer ID: 13 OEM: 14e Name: Q1J54 Tran Speed: 52000000 Rd Block Len: 512 MMC version 5.0 High Capacity: Yes Capacity: 0 Bytes Bus Width: 4-bit Erase Group Size: 512 KiB HC WP Group Size: 8 MiB User Capacity: 0 Bytes WRREL Boot Capacity: 2 MiB ENH RPMB Capacity: 512 KiB ENH GP1 Capacity: 1.8 GiB ENH WRREL
mmc hwpartition
Partition configuration: No enhanced user data area No GP1 partition No GP2 partition No GP3 partition No GP4 partition Card already partitioned Failed!
mmc read 0 0 1
MMC read: dev # 0, block # 0, count 1 ... MMC: block number 0x1 exceeds max(0x0) 0 blocks read: ERROR
mmc dev 0 0
MMC: block number 0x1 exceeds max(0x0) switch to partitions #0, OK mmc0(part 0) is current device
BTW: The GP partiton was created in Linux by the mmc-utils with “mmc gp create -y 1908736 1 1 0 /dev/mmcblk0”
Linux can handle this as you can see in boot message: [ 1.248426] mmc0: new high speed MMC card at address 0001 [ 1.264301] mmcblk0: mmc0:0001 Q1J54A 0 B [ 1.268525] mmcblk0boot0: mmc0:0001 Q1J54A partition 1 2.00 MiB [ 1.284605] mmcblk0boot1: mmc0:0001 Q1J54A partition 2 2.00 MiB [ 1.300666] mmcblk0gp0: mmc0:0001 Q1J54A partition 4 1.82 GiB [ 1.316563] mmcblk0rpmb: mmc0:0001 Q1J54A partition 3 512 KiB [ 1.325255] mmcblk0gp0: p1 p2 p3 … [ 3.083325] EXT4-fs (mmcblk0gp0p1): INFO: recovery required on readonly filesystem [ 3.090893] EXT4-fs (mmcblk0gp0p1): write access will be enabled during recovery [ 3.189597] EXT4-fs (mmcblk0gp0p1): recovery complete [ 3.196310] EXT4-fs (mmcblk0gp0p1): mounted filesystem with ordered data mode. Opts: (null)