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@30110000: 0 In: serial@10210000 Out: serial@10210000 Err: serial@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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