On Wed, Sep 2, 2020 at 8:52 PM Nathan Chancellor <natechancellor@xxxxxxxxx> wrote: > > On Wed, Sep 02, 2020 at 05:36:29PM -0700, Florian Fainelli wrote: > > > > > > On 9/2/2020 3:38 PM, Nathan Chancellor wrote: > > [snip] > > > > Hello Nathan, > > > > > > > > Can you tell me how much memory your RPI has and if all of it is > > > > > > This is the 4GB version. > > > > > > > accessible by the PCIe device? Could you also please include the DTS > > > > of the PCIe node? IIRC, the RPI firmware does some mangling of the > > > > PCIe DT before Linux boots -- could you describe what is going on > > > > there? > > > > > > Unfortunately, I am not familiar with how to get this information. If > > > you could provide some instructions for how to do so, I am more than > > > happy to. I am not very knowleagable about the inner working of the Pi, > > > I mainly use it as a test platform for making sure that LLVM does not > > > cause problems on real devices. > > > > Can you bring the dtc application to your Pi root filesystem, and if so, can > > you run the following: > > > > dtc -I fs -O dtb /proc/device-tree -f > /tmp/device.dtb > > Sure, the result is attached. > > > or cat /sys/firmware/fdt > device.dtb > > > > and attach the resulting file? > > > > > > > > > Finally, can you attach the text of the full boot log? > > > > > > I have attached a working and broken boot log. Thank you for the quick > > > response! > > > > Is it possible for you to rebuild your kernel with CONFIG_MMC_DEBUG by any > > chance? > > Of course. A new log is attached with the debug output from that config. Hi Nicolas, Can you please help us out here? It appears that your commit 3d2cbb644836 "ARM: dts: bcm2711: Move emmc2 into its own bus" added the following line to the bcm2711.dtsi file: + dma-ranges = <0x0 0xc0000000 0x0 0x00000000 0x40000000>; and for some reason the eMMC is not operating properly w/ my commit.. Regardless, the only difference that my commit should make is to enforce the bounds of the dma_window (whereas the previous code adds/subs the pfn_offset everywhere). Thanks, Jim Quinlan PS If you would like to talk, let me know and we can make arrangements. > > > > I have a suspicion that this part of the DTS for the bcm2711.dtsi platform > > is at fault: > > > > https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/arm/boot/dts/bcm2711.dtsi#n264 > > > > and the resulting dma-ranges parsing is just not working for reasons to be > > determined. > > -- > > Florian > > Let me know if you need anything else out of me. > > Cheers, > Nathan _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
