How to add FRWY-LS1012A SDHC2 emmc?

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How to add FRWY-LS1012A SDHC2 emmc?

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Contributor III

Hello,

 

I made the FRWY-LS1012A custom board.

As shown in the figure below, instead of the existing DSPI, the eMMC (MTFC8GACAEDQ-AAT) was connected with the SDHC2 interface.

a.png

LSDK18.12 was used, and RCW was slightly adjusted.

Reset Configuration Word (RCW):
00000000: 0800000a 00000000 00000000 00000000
00000010: 33050000 c000000c 40000000 00001800
00000020: 00000000 00000000 00000000 000c4572
00000030: 00000000 1082a120 00000096 00000000

It seems to be recognized by u-boot.

=> mmc dev 0
switch to partitions #0, OK
mmc0 is current device

=> mmc info
Device: FSL_SDHC
Manufacturer ID: 74
OEM: 4a60
Name: USD
Bus Speed: 50000000
Mode : SD High Speed (50MHz)
Rd Block Len: 512
SD version 3.0
High Capacity: Yes
Capacity: 7.5 GiB
Bus Width: 4-bit
Erase Group Size: 512 Bytes

=> mmc dev 1
switch to partitions #0, OK
mmc1(part 0) is current device

=> mmc info
Device: FSL_SDHC
Manufacturer ID: 13
OEM: 14e
Name: R1J55
Bus Speed: 52000000
Mode : MMC High Speed (52MHz)
Rd Block Len: 512
MMC version 5.0
High Capacity: Yes
Capacity: 7.3 GiB
Bus Width: 4-bit
Erase Group Size: 512 KiB
HC WP Group Size: 8 MiB
User Capacity: 7.3 GiB WRREL
Boot Capacity: 8 MiB ENH
RPMB Capacity: 4 MiB ENH

=> mmc list
FSL_SDHC: 0 (SD)
FSL_SDHC: 1 (eMMC)
=>

After kernel booting, mmcblk1 is not caught.

root@ls1043ardb:~# ls /dev/mmcblk*
/dev/mmcblk0 /dev/mmcblk0p1 /dev/mmcblk0p2 /dev/mmcblk0p3

I need help on how to add it.

Thank you, 

Best Regards,

Gyosun.

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