IMX8MM Android10 SD Boot failure state LOCK

[jianfeichang]

hello，I use imx8mm android10，I only modified the SD card pins，uboot-imx/arch/arm/dts/imx8mm-evk.dts：

• 369 &usdhc2 {
• 370     pinctrl-names = "default", "state_100mhz", "state_200mhz";
• 371     pinctrl-0 = <&pinctrl_usdhc2>, <&pinctrl_usdhc2_gpio>;
• 372     pinctrl-1 = <&pinctrl_usdhc2_100mhz>, <&pinctrl_usdhc2_gpio>;
• 373     pinctrl-2 = <&pinctrl_usdhc2_200mhz>, <&pinctrl_usdhc2_gpio>;
• 374     //cd-gpios = <&gpio1 15 GPIO_ACTIVE_LOW>;
• 375     cd-gpios = <&gpio2 12 GPIO_ACTIVE_LOW>;//add cjf                      
• 376     bus-width = <4>;
• 377     vmmc-supply = <&reg_usdhc2_vmmc>;
• 378     status = "okay";
• 379 };After compiling uboot, burn the image to the SD card：sudo ./fsl-sdcard-partition.sh -f imx8mm /dev/sdb
  
• 

   uboot Boot failure：

• U-Boot 2020.04-dirty (Dec 07 2020 - 17:51:27 +0800)

  CPU: i.MX8MMQ rev1.0 1800 MHz (running at 1200 MHz)
  CPU: Commercial temperature grade (0C to 95C) at 50C
  Reset cause: POR
  Model: NXP i.MX8MM EVK board
  DRAM: 2 GiB
  tcpc_init: Can't find device id=0x52
  setup_typec: tcpc port2 init failed, err=-19
  tcpc_init: Can't find device id=0x50
  setup_typec: tcpc port1 init failed, err=-19
  MMC: FSL_SDHC: 1, FSL_SDHC: 2
  Loading Environment from MMC... Run CMD11 1.8V switch
  *** Warning - bad CRC, using default environment

  [*]-Video Link 0Can't find cec device id=0x3c
  fail to probe panel device adv7535@3d
  failed to get any video link display timings
  probe video device failed, ret -22

  [0] lcdif@32e00000, video
  [1] mipi_dsi@32e10000, video_bridge
  [2] adv7535@3d, panel
  Can't find cec device id=0x3c
  fail to probe panel device adv7535@3d
  failed to get any video link display timings
  probe video device failed, ret -22
  In: serial
  Out: serial
  Err: serial

  BuildInfo:
  - ATF 0263634
  - U-Boot 2020.04-dirty

  flash target is MMC:1
  Net:
  Error: ethernet@30be0000 address not set.

  Error: ethernet@30be0000 address not set.
  No ethernet found.

  Fastboot: Normal
  Normal Boot
  Hit any key to stop autoboot: 0
  avb_slot_verify.c:772: ERROR: vbmeta_a: Error loading vbmeta data.
  verify FAIL, state: LOCK

• What should I do?

[Rita_Wang]

Could you tell us are you using the reference board or the board you design by yourself? And which andorid10 are you using?

[jianfeichang]

Now I have the same problem with the official image，emmc is ok，Sd card prompts lock error。android-10.0.0_2.5.0_image_8mmevk.tar.gz  imx8mm lpddr4 sd 32G EMMC16G。

android 9 is ok。linux 4.14.98 is ok。emmc and sd。

One more question：

Burn the image using uuu_imx_android_flash.bat，windows7/10 and ubuntu，There will be temporary files that cannot be deleted automatically and need to be manually deleted。 C:\Users\cjf\AppData\Local\Temp ，ubuntu ls /tmp/

[Rita_Wang · Accepted solution]

The controller connected to the SDcard slot is set to work with Wi-Fi expansion card in Android10.0.0_2.5.0 demo image, it does not support to access SDcard.

so basically, if the dtbo image support Wi-Fi expansion card, then the images cannot boot up from SD card.

[jianfeichang]

I used my own design board, referring to the IMX8mm EVK LPDDR4。it is android-10.0.0_2.5.0_image_8mmevk.tar.gz，Just a change in the SD card pin。

[Rita_Wang]

This android-10.0.0_2.3.0 version should be work. You can have a try.

[jianfeichang]

hello

I want to use Android10_2.5.0，My wifi card is AP6255 BCM43455，How do I modify an dtbo image？Get rid of its own wifi card?

[Rita_Wang]

You can not use the demo images supply in our website, it's for the reference board.

[Rita_Wang]

You need to download the source and porting your wifi to your board.

[jianfeichang]

Thank you. Can I remove the official wifi card？