October 16, 20232 yr The log without tf card, it seems that the board reboot again. DDR Version 1.26 20210628 In Channel 0: DDR3, 800MHz Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB Channel 1: DDR3, 800MHz Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB 256B stride ch 0 ddrconfig = 0x101, ddrsize = 0x20 ch 1 ddrconfig = 0x101, ddrsize = 0x20 pmugrf_os_reg[2] = 0x32817281, stride = 0x9 OUT Boot1 Release Time: May 29 2020 17:36:36, version: 1.26 CPUId = 0x0 ChipType = 0x10, 338 mmc: ERROR: SDHCI:Transfer data timeout mmc: ERROR: SDHCI ERR:cmd:0x153a,stat:0x0 mmc: ERROR: Tuning procedure failed, falling back to fixed sampling clock mmc: ERROR: tuning execution failed emmc reinit mmc: ERROR: SDHCI:Transfer data timeout mmc: ERROR: SDHCI ERR:cmd:0x153a,stat:0x0 mmc: ERROR: Tuning procedure failed, falling back to fixed sampling clock mmc: ERROR: tuning execution failed emmc reinit mmc: ERROR: SDHCI:Transfer data timeout mmc: ERROR: SDHCI ERR:cmd:0x153a,stat:0x0 mmc: ERROR: Tuning procedure failed, falling back to fixed sampling clock mmc: ERROR: tuning execution failed SdmmcInit=2 1 mmc0:cmd8,20 mmc0:cmd5,20 mmc0:cmd55,20 mmc0:cmd1,20 mmc0:cmd8,20 mmc0:cmd5,20 mmc0:cmd55,20 mmc0:cmd1,20 mmc0:cmd8,20 mmc0:cmd5,20 mmc0:cmd55,20 mmc0:cmd1,20 SdmmcInit=0 1 UsbBoot ...35647542 powerOn 35659765 Usb re Boot. 2 Usb re Boot. 6000006 Usb re Boot. 12000011 SoftReset DDR Version 1.26 20210628 In soft reset SRX Channel 0: DDR3, 800MHz Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB Channel 1: DDR3, 800MHz Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB 256B stride ch 0 ddrconfig = 0x101, ddrsize = 0x20 ch 1 ddrconfig = 0x101, ddrsize = 0x20 pmugrf_os_reg[2] = 0x32817281, stride = 0x9 OUT
October 16, 20232 yr It seems that I can only run the system on tf card. That's fine. I just want to know what happened on the internal EMMC. I find armbian firefly rk3399 image with 6.5 kernel of 6.6 kernel will fail to reboot some time. It enter busybox when I attach a monitor. No more output on UART then. I hope this only happen on my board I guess I know the problem. I need write correct uboot to emmc. I will try to build and flash it soon. Edited October 17, 20232 yr by Huifeng Shen more information
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