On Mon, 31 Jan 2022 14:07:54 +0100 Giulio Benetti giulio.benetti@benettiengineering.com wrote:
Hi Giulio,
Il giorno 31 gen 2022, alle ore 13:57, Andre Przywara andre.przywara@foss.arm.com ha scritto:
On Mon, 31 Jan 2022 13:17:52 +0100 Giulio Benetti giulio.benetti@benettiengineering.com wrote:
Hi All,
I've tried several times on both F1C100s and F1C200s, maybe I'm doing something wrong but it doesn't work :-/
I burn sd-card with: # sudo dd if=u-boot-sunxi-with-spl.bin of=/dev/sdb bs=1k seek=8
I've triple-checked that the file has been written there by dumping the sd-card and I see it's written at 0x2000, so 8K offset, like the mangoPI image for example. But no uart output.
I haven't looked in detail what would be needed for the SPL part of the MMC driver to really work, I just checked that the base addresses are correct, the pinmux looked alright as well. The DT nodes are not needed for the SPL, and I don't see other changes related to MMC in the original series?
Yes that’s true.
Do you see UART output from the SPL, or nothing at all?
Unfortunately nothing either with SPL
That is interesting. If there would be a problem with the MMC code, you should at least see the SPL banner, and then see it failing loading U-Boot proper. I take it FEL boot works? Maybe we miss something with the clock setup that the BROM does for us during FEL operation?
Can you try to clear the area between the end of the SPL and the beginning of the U-Boot proper image (dd if=/dev/zero of=/dev/sdX bs=1k seek=32 count=8)? Does any other branch work with SD card booting? Can you check the SPL size in there (with hexdump -C u-boot-sunxi-with-spl.bin | head, check for the halfword at 0x10)?
And you are not using UART0 on the PortF pins, so multiplexed with the MMC, I guess?
I use PE0 and PE1 Uart0 according to dts.
Have you got such board to test it?
That's the problem: I am driving blindfolded, because I don't have hardware :-(
Cheers, Andre
Or we can wait for Jesse or George.
I’ve used the git you’ve pointed.
Anyway I think we’re very close to have it working.
At least my work “behind the scenes” will be worth, right Jesse :-)?
Best regards —- Giulio Benetti Benetti Engineering sas
Cheers, Andre
Am I doing something wrong?
Best regards