topic iMX mini uboot hangs in i.MX Processors

iMX mini uboot hangs

kajolkharbanda — Mon, 14 Aug 2023 09:03:14 GMT

i am trying to access PCI address space in imx8mmevk board using md command,

the u-boot hangs after typing this command,

i was expecting to see the device id and vendor id as this is PCI base address

u-boot # md 0x33800000

is it not possible to see the PCI address space using read command from u-boot.

joanxie — Tue, 15 Aug 2023 09:10:26 GMT

I checked the uboot source code, it seems uboot doesn't enable pcie, you can use memtool in the kernel when board boot up to read the register

kajolkharbanda — Wed, 16 Aug 2023 03:53:11 GMT

i need to access the pci from u-boot.

Can i enable PCI from u-boot ?

joanxie — Wed, 16 Aug 2023 08:18:41 GMT

check the mail pls

kajolkharbanda — Wed, 16 Aug 2023 10:24:34 GMT

Thanks, how to build u-boot and flash it ?

joanxie — Thu, 17 Aug 2023 03:31:44 GMT

you can use uuu tools or dd command to flash uboot to the emmc or sd card, more detailed information, pls refer to the user guide

kajolkharbanda — Tue, 29 Aug 2023 11:05:14 GMT

the uboot patch you gave me seems to be incompatible with my BSP

i.MX Linux Yocto Project BSP 6.1.22_2.0.0 Release