Radax failed to boot - how to recover the board.

Anand Moon linux.amoon at gmail.com
Sun Sep 26 19:24:22 CEST 2021


Hi Kever / Jagan,

I have Radxa N10 RK3399pro model B 6 GB ram, (4 GB +2GB NPU).
When I tried to boot via micro sd card it booted with stock android u-boot,
but this u-boot was not enabled all 4BG memory in total.
So I tried to replace the image with the latest u-boot.

Now when I flash the u-boot to eMMC (onboard) with the latest u-boot
it failed to boot. see below.

Please help me recover the board, I cannot reset the board via the reset button
or nor is it entering the u-boot command prompt.

Please advise me on how to proceed.on recovery off the board?

Thanks
-Anand

As per the Radax wiki page the DRAM 6GB 64bit dual channel LPDDR3 at 1866Mb/s,
So I have modified the code as below.

$ git diff arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi
diff --git a/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi
b/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi
index 7c66e1145a..08266bb3ac 100644
--- a/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi
+++ b/arch/arm/dts/rk3399pro-rock-pi-n10-u-boot.dtsi
@@ -4,7 +4,7 @@
  */

 #include "rk3399pro-u-boot.dtsi"
-#include "rk3399-sdram-lpddr3-4GB-1600.dtsi"
+#include "rk3399-sdram-lpddr3-samsung-4GB-1866.dtsi"

Boot failed ...not able to recover the.

U-Boot TPL 2021.10-rc4-00055-g8284d6f838-dirty (Sep 26 2021 - 20:29:22)
Channel 0: LPDDR3, 933MHz
BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
Channel 1: LPDDR3, 933MHz
BW=32 Col=10 Bk=8 CS0 Row=15 CS1 Row=15 CS=2 Die BW=16 Size=2048MB
256 stride
Trying to boot from&{{▒▒{kk
                           Returning to boot ROM...

U,Boot SPL 2021.10-rc4-00055-g8284d6f838-dirty (Sep 26 2021 - 20:29:22 +0530)
Trying to boot from MMC1
Card did not respond to voltage select! : -110
spl: mmc init failed with error: -95
SPL: failed to boot from all boot deviceC
### ERROR ### Please RESET the board ###


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