On 16/08/19, Oliver Graute wrote:
I'am currently working on the following patch to get the imx8qm-rom7720-a1 board working with recent u-boot v2019.07. Unfortunaly I get no output on my serial line.
I'am not sure if something in my patch is just missing or if my composition of "SCFW + ATF + uboot" which is necessary for this imx8qm board, is not working the right way.
Perhaps somebody can guide me in the right direction to debug this further.
Currently I'am applying the patch and building u-boot this way:
$ export ATF_LOAD_ADDR=0x80000000 $ export BL33_LOAD_ADDR=0x80020000 $ make imx8qm_rom7720_a1_4G_defconfig $ make flash.bin $ dd if=u-boot.itb of=flash.bin bs=512 seek=854 $ sudo dd if=flash.bin of=/dev/sd[x] bs=1k seek=32 conv=fsync
Then I put the SD card into the board and power it on. But no output ony my serial line.
ok I got this working by using the u-boot.bin
$ make u-boot.bin
and put it into the imx-mkimage repo from here:
https://source.codeaurora.org/external/imx/imx-mkimage
to create the full bootstream with scfw + atf + u-boot.
I thought that I could create the full bootsteam directly in u-boot repo with:
$ make flash.bin
as seen for other imx8 boards. Perhaps that is possible too but I don't got it working that way.
U-Boot 2019.07-00001-g5854ff8d0e (Aug 19 2019 - 11:12:49 +0200)
CPU: NXP i.MX8QM RevB A53 at 1200 MHz
Model: Advantech iMX8QM Qseven series Board: ROM-7720-A1 4GB Build: SCFW 65afe5f6 Boot: SD2 DRAM: 3.9 GiB MMC: FSL_SDHC: 0, FSL_SDHC: 2 Loading Environment from MMC... *** Warning - bad CRC, using default environment
In: serial@5a060000 Out: serial@5a060000 Err: serial@5a060000 Net: Error: ethernet@5b040000 address not set. eth-1: ethernet@5b040000 Error: ethernet@5b040000 address not set. Can't find FEC0 clk rate: -22 Could not get PHY for FEC1: addr 1 , eth-1: ethernet@5b050000 Hit any key to stop autoboot: 0
Best regards,
Oliver