On Mon, Jan 31, 2022 at 2:25 PM Michael Nazzareno Trimarchi <mich...@amarulasolutions.com> wrote: > > HI Adam > > On Mon, Jan 31, 2022 at 9:21 PM Adam Ford <aford...@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 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. adam > > Michael > > > <hang> > > > > -- > Michael Nazzareno Trimarchi > Co-Founder & Chief Executive Officer > M. +39 347 913 2170 > mich...@amarulasolutions.com > __________________________________ > > Amarula Solutions BV > Joop Geesinkweg 125, 1114 AB, Amsterdam, NL > T. +31 (0)85 111 9172 > i...@amarulasolutions.com > www.amarulasolutions.com
