On Mon, Jan 31, 2022 at 2:45 PM Michael Nazzareno Trimarchi michael@amarulasolutions.com wrote:
Hi
On Mon, Jan 31, 2022 at 9:34 PM Adam Ford aford173@gmail.com wrote:
On Mon, Jan 31, 2022 at 2:25 PM Michael Nazzareno Trimarchi michael@amarulasolutions.com wrote:
HI Adam
On Mon, Jan 31, 2022 at 9:21 PM Adam Ford aford173@gmail.com wrote:
I have a situation where the same Flash.bin file can boot an MMC card, but hang when booting over USB.
In both cases, I can see the FIT file is loaded, and the various items are identified and placed in their respective folders memory locations. The only difference I can see is that when jumping to 0x920000 (ATF), the USB booting hangs and ATF doesn't appear to execute. Is there some special command that I need to issue to unlock this memory to execute from it when booting from USB? I am calling enable_tzc380 from SPL, and I read the first 100 bytes and last 100 bytes and compared it to my bl31.bin file, and it appears to match, so I know I can read from it.
U-Boot SPL 2022.01-00836-g3cc200c91a-dirty (Jan 30 2022 - 07:31:51 -0600) No pmic WDT: Not starting watchdog@30280000 Trying to boot from USB SDP USB EHCI 1.00 SDP: initialize... SDP: handle requests... Downloading file of size 832080 to 0x40400000... done Jumping to header at 0x40400000 Header Tag is not an IMX image Found header at 0x40417c00 firmware: 'uboot' External data: dst=40200000, offset=3000, size=9ddd8 fdt: 'fdt-1' External data: dst=4029de00, offset=aaea0, size=87b0 loadables: 'atf' External data: dst=920000, offset=a0dd8, size=a0c6 image entry point: 0x920000
Check if the uart used on atf and uboot are mapping correctly (but this should because you can boot from sdcard)
As far as i can tell, I have not done any differently in the serial from the NXP downstream.
ENV_IS_EVERYWHERE in configs file. It's no PMIC a problem when you jump in atf?
I have experimented with and without ENV_IS_EVERYWHERE, but that only seemed to help my imx8m Nano when jumping from ATF -> U-Boot. As for my Mini, the jump from SPL->ATF seems to be the issue.
What might the PMIC have to do with the ATF? From what I can tell, the PMIC is pre-configured and the default voltages appear to boot the
I have only seen this. I don't say that is connected. If the voltage are ok and you don't need to program it I don't see the problem
MMC. i had to disable the PMIC driver in order to make room for the USB code. I have a few lines of code in my board's spl.c file to setup a few registers based on NXP's original 8MM design and reference software.
Can you enable debug on the atf side?
I can try that.
Are you using binman to create the image flash.bin?
Yes.
Michael
adam
Michael
<hang>
-- Michael Nazzareno Trimarchi Co-Founder & Chief Executive Officer M. +39 347 913 2170 michael@amarulasolutions.com __________________________________
Amarula Solutions BV Joop Geesinkweg 125, 1114 AB, Amsterdam, NL T. +31 (0)85 111 9172 info@amarulasolutions.com www.amarulasolutions.com
-- Michael Nazzareno Trimarchi Co-Founder & Chief Executive Officer M. +39 347 913 2170 michael@amarulasolutions.com __________________________________
Amarula Solutions BV Joop Geesinkweg 125, 1114 AB, Amsterdam, NL T. +31 (0)85 111 9172 info@amarulasolutions.com www.amarulasolutions.com