Specifications

MXS MMC: 0
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With the mmc rescan command you can rescan the actual mmc device.
=> mmc rescan
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The mmcinfo command displays the information about the actual mmc device
=> mmcinfo
Device: MXS MMC
Manufacturer ID: 1b
OEM: 534d
Name: 00000
Tran Speed: 50000000
Rd Block Len: 512
SD version 2.0
High Capacity: No
Capacity: 1.9 GiB
Bus Width: 4-bit
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The mmc part command displays the available partitions on the actual mmc device.
=> mmc part
Partition Map for MMC device 0 -- Partition Type: DOS
Partition Start Sector Num Sectors Type
1 2048 2048 53
2 4096 61440 6
3 65536 3620864 83
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You can read data from the mmc with the mmc read command:
=> mmc read 0x42000000 247 10
MMC read: dev # 0, block # 583, count 16 ... 16 blocks read: OK
=> md 0x42000000
42000000: 00000000 00000000 00000000 00000000 ................
42000010: 00000000 00000000 00000000 00000000 ................
42000020: 00000000 00000000 00000000 00000000 ................
42000030: 00000000 00000000 00000000 00000000 ................
42000040: 00000000 00000000 00000000 00000000 ................
42000050: 00000000 00000000 00000000 00000000 ................
42000060: 00000000 00000000 00000000 00000000 ................
42000070: 00000000 00000000 00000000 00000000 ................
42000080: 00000000 00000000 00000000 00000000 ................
42000090: 00000000 00000000 00000000 00000000 ................
420000a0: 00000000 00000000 00000000 00000000 ................
420000b0: 00000000 00000000 00000000 00000000 ................
420000c0: 00000000 00000000 00000000 00000000 ................
420000d0: 00000000 00000000 00000000 00000000 ................
420000e0: 00000000 00000000 00000000 00000000 ................
420000f0: 00000000 00000000 00000000 00000000 ................
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You can erase/write data from the mmc with the mmc erase / mmc write commands:
=> mmc read 0x43000000 247 10
MMC read: dev # 0, block # 583, count 16 ... 16 blocks read: OK
5.9.9.1. MMC devices 73