[Banana Pi M3]

On 6/30/2020 at 2:08 AM, Adrián Rivelli said:

Hello Folks,

So, I have a bananapi m3 too, and I tried armbian focal and buster succesfully from a sd card but I couldn't boot from emmc... I used nand-stata-install,  dd and all the things aroung with no success... the output from uart from emmc is this:
 

HELLO! BOOT0 is starting!
boot0 version : 4.0.0
rtc[1] value = 0x00010000
rtc[2] value = 0x00020000
rtc[3] value = 0x00030000
DRAM DRIVE INFO: V1.1 
DRAM Type =7 (2:DDR2,3:DDR3,6:LPDDR2,7:LPDDR3)
DRAM normal_mode value: 00000001
DRAM CLK =672 MHZ
rsb_send_initseq: rsb clk 400Khz -> 3Mhz
PMU: AXP81X
ddr voltage = 1200 mv
ID CHECK VERSION: V0.2
using ic A83T
using axp AXP813
DRAM zq value: 00003bfb
dram size =2048
card boot number = 2
card no is 2
sdcard 2 line count 8
[mmc]: mmc driver ver 2015-04-13 16:05:39
[mmc]: ***Try SD card 2***
[mmc]: mmc 2 cmd 8 err 00000100
[mmc]: mmc 2 cmd 8 err 00000100
[mmc]: mmc 2 send if cond failed
[mmc]: mmc 2 cmd 55 err 00000100
[mmc]: mmc 2 cmd 55 err 00000100
[mmc]: mmc 2 send app cmd failed
[mmc]: ***Try MMC card 2***
[mmc]: mmc re-update_phase
[mmc]: mmc re-update_phase
[mmc]: 8bit ddr!!! 
[mmc]: mmc re-update_phase
[mmc]: MMC ver 5.0
[mmc]: SD/MMC Card: 8bit, capacity: 7456MB
[mmc]: vendor: Man 00150100 Snr 0032bbf4
[mmc]: product: 8WPD3
[mmc]: revision: 5.2
[mmc]: ***SD/MMC 2 init OK!!!***
sdcard 2 init ok
ERROR! NOT find the head of uboot.
ERROR! NOT find the head of uboot.
read all u-boot blk failed
Ready to disable icache.

PD: thanks for your great job with this

I'm have exactly the same problem and I have solve it.

The problem is in bootloader on eMMC. It's locked by default and armbian-config does not unlock it while install on emmc. And the old BOOT0 bootloader can't load new kernel. But we have new bootloader in armbian image. It located in /usr/lib/linux-u-boot-current-bananapim3_20.08.1_armhf/u-boot-sunxi-with-spl.bin in my case. Check your image and fix pathces in further instruction before wiping anything!

 

So:

1. Flash armbian image to SD, boot normaly and log in (through SSH or phisycal keyboard and monitor - does not matter).

2. We have two boot section on eMMC (mmcblk1boot0 and mmcblk1boot1). I don't know "who is who", so I flash both of them.

Unlock it: echo 0 | sudo tee /sys/block/mmcblk1boot0/force_ro && echo 0 | sudo tee /sys/block/mmcblk1boot1/force_ro
Two zeros in output says it unlocked.

3. Wipe it: sudo dd if=/dev/zero of=/dev/mmcblk1boot0 bs=1k count=1023 seek=1 status=noxfer && sudo dd if=/dev/zero of=/dev/mmcblk1boot1 bs=1k count=1023 seek=1 status=noxfer

4. Now flash new u-boot bootloader into boot partitions:
sudo dd if=/usr/lib/linux-u-boot-current-bananapim3_20.08.1_armhf/u-boot-sunxi-with-spl.bin of=/dev/mmcblk1boot0 bs=1024 seek=8 status=noxfer && sudo dd if=/usr/lib/linux-u-boot-current-bananapim3_20.08.1_armhf/u-boot-sunxi-with-spl.bin of=/dev/mmcblk1boot1 bs=1024 seek=8 status=noxfer

5. Run "sudo armbian-config" and go to: System>Install>Install/Update the bootloader on SD/eMMC (just in case)

 

Now you can install armbian through armbian-config as usual. After reboot bootloader partition lock by itself. You can check it's blocked by typing: cat /sys/block/mmcblk1boot0/force_ro && cat /sys/block/mmcblk1boot1/force_ro
Output must be like "1 1" in two lines.