Bug 12846

OS: Ubuntu 20.04 LTS

Following the instructions in board/atmel/readme.txt for the SAMA5D3-Xplained boot from NAND with either atmel_sama5d3_xplained_defconfig or atmel_sama5d3_xplained_dev_defconfig, the image does not boot past AT91Bootstrap.

Only the following is output from the board:

  RomBOOT
  
  AT91Bootstrap 3.9.0 (Sat 02 May 2020 09:50:11 PM CDT)
  
  ACT8865: Set REG1/REG2/REG3 Power-saving mode
  ACT8865: Disable ACT8865's I2C interface
  NAND: ONFI flash detected
  NAND: Manufacturer ID: 0x2c Chip ID: 0xda
  NAND: Page Bytes: 2048, Spare Bytes: 64
  NAND: ECC Correctability Bits: 4, ECC Sector Bytes: 512
  NAND: Disable On-Die ECC
  NAND: Initialize PMECC params, cap: 4, sector: 512
  NAND: Image: Copy 0xc0000 bytes from 0x40000 to 0x26f00000
  NAND: Done to load image

However, when the U-Boot version is changed to "linux4sam_5.5" by changing the "U-Boot Version" from "Custom tarball" to "Custon Git Repository," changing "URL of custom repository" to "https://github.com/linux4sam/u-boot-at91.git" and changing "Custom repository version" to "801b789," the image boots successfully.

I've done the debugging that I can, and I'm certain that AT91Bootstrap is copying the U-Boot image into RAM and jumping to it, but I haven't been able to narrow down the issue any further.

Steps to reproduce:
> make atmel_sama5d3_xplained_defconfig
> make
> Put board into RomBOOT (open JP5, power up, close JP5)
> ./board/atmel/flasher.sh ./output /dev/ttyACM0 sama5d3_xplained
> (flash completes successfully)
> Restart board