Hi Marek,
-----Original Message----- From: Marek Vasut [mailto:marek.vasut@gmail.com] Sent: 2016年4月18日 23:30 To: Yang, Wenyou Wenyou.Yang@atmel.com Cc: u-boot@lists.denx.de Subject: SAMA5D2 xplained SD/eMMC boot
Hi!
I've been playing around with latest mainline u-boot on sama5d2 xplained ultra. I noticed that if I want to boot the board from SD card (SDHCI1), the board will indeed load the SPL from it, but SPL will try to load u-boot.img from eMMC (SDHCI0) and fail, as my eMMC is blank.
Yes, there is some issue to load u-boot.img. I found there is something to do on sdhci.c.
You can try this branch, it should works.
https://github.com/linux4sam/u-boot-at91/commits/u-boot-2016.03-at91
This is a result of hard-coding boot device to BOOT_DEVICE_MMC1 in arch/arm/mach-at91/spl.c spl_boot_device() I think.
Is there any way to discern from which SDHCI the board booted to continue loading u-boot.img from the correct one ? This would let us implement board_boot_order() and boot from correct SDHCI.
-- Best regards, Marek Vasut
Best Regards, Wenyou Yang