Why is there no MMC usage information on A10 SoC uboot?

Description

Due to that SoC EDS v17.0 & 17.1 Bootloader code has not been switched to mainstream uboot code, there is no usage information when you run mmc command in uboot command shell. Currently the information is as below:

SOCFPGA_ARRIA10 # mmc

mmc - MMC sub system

Resolution

The SoC EDS Bootloader can support the MMC commands. The MMC usage information just likes as below:

SOCFPGA_ARRIA10 # mmc

mmc - MMC sub system

Usage:

mmc info - display info of the current MMC device

mmc read addr blk# cnt

mmc write addr blk# cnt

mmc erase blk# cnt

mmc rescan

mmc part - lists available partition on current mmc device

mmc dev [dev] [part] - show or set current mmc device [partition]

mmc list - lists available devices

mmc setdsr <value> - set DSR register value

You can run these commands directly.

The MMC usage information will be added into a future SoC EDS Bootloader version.