[U-Boot] Rockchip RV1108 eMMC initialization fail

[alex94]

I should also mention that, I put U-boot itself into SD card/eMMC, so when I
start the board, it gets loaded into RAM from SD card/eMMC. But after it
loads and I can interact with it, I cannot communicate with the memory
card(using the 'mmc' set of commands). 

I have managed to find a workaround on Rockchip MINI EVB RV1108 board,
putting the kernel image into USB, which I have access to, through the 'usb'
commands. After the kernel starts, the SD card gets recognized by the
kernel, and I can load the root filesystem from the SD card. So the problem
is, after U-boot starts, I cannot use the SD card to load the kernel.

But on my custom board, I dont have USB, and I have to use the eMMC all the
way through.

Also, here is the U-boot log when it starts, so under the MMC field, my eMMC
gets recognized:


DDR Version V1.03 20180118
set vdd core 1.15v
In
600MHz
DDR3
Bus Width=16 Col=10 Bank=8 Row=13 CS=1 Die Bus-Width=16 Size=128MB
mach:2
OUT


U-Boot 2018.11-rc3-00062-g26cc40d8c4-dirty (Nov 12 2018 - 11:43:08 +0100)

Model: Rockchip RV1108 Evaluation board
DRAM:  128 MiB
APLL: 600000000 DPLL:1200000000 GPLL:1188000000
ACLK_BUS: 148500000 ACLK_PERI:148500000 HCLK_PERI:148500000
PCLK_PERI:74250000
MMC:   dwmmc at 30110000: 0
In:    serial at 10210000
Out:   serial at 10210000
Err:   serial at 10210000
Model: Rockchip RV1108 Evaluation board
Hit any key to stop autoboot:  0 
=>


I appreciate a lot for the help till now,
Regards,
Alex



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