Here's the config.txt that I use for my rpi400 (it's on the file server and handed to rpi via tftp): start_file=start4cd.elf fixup_file=fixup4cd.dat cmdline=xxxxxxx/cmdline.txt kernel=arm/9pi4 gpu_mem=16 hdmi_group=2 hdmi_mode=82 core_freq=250 enable_gic=1 device_tree= On Fri, Jan 15, 2021 at 10:45 AM Mack Wallace wrote: > Dear Skip, > > That pushed the ball forward significantly, but I still have issues. (But > thank you, every little advancement helps.) So with that flag, I was able > to get Richard’s port to boot into Glenda’s account (showing acme, faces, > stats, etc). However, I do not seem to have any USB; no mouse; nor > keyboard. Stats is moving on the screen, so things are not too locked up. I > did try rebooting with an external keyboard and another mouse. Still > nothing. The external keyboard doesn’t respond to anything (no caps lock > nor num lock.) One mouse is in the USB 2.0 port, another and the external > keyboard are in the USB 3.0 ports. > > on boot, I see the following: > usbxhci: 0x1106 0x3483 port 600000000 size 0x1000 irq0 > #u/usb/ep1.0: xhci port 0x0 irq 0 > > The line before is #l for the network, > The line after is the detection of the other three cores. > > The changing of the enable_gic=1 on the 9front image seemed to have to > effect. > > Thanks again! > > Mack > > > On Jan 14, 2021, at 8:15 PM, Skip Tavakkolian > wrote: > > > I'm using a RPi400 with Richard's port. I'm netbooting without issues and > up for days. The only issue I had was forgetting to set 'enable_gic=1' as > Richard instructed in the sources. Pi4 works ok without it, pi400 doesn't. > > > On Thu, Jan 14, 2021, 3:39 PM Mack Wallace wrote: > >> Thank you for the reply Stuart, but no luck. >> >> I did download Mr. Miller’s image. It would not boot at all until I >> replaced the files that you mention, but the kernel in that image locks up >> after detecting the fourth core of the CPU. However, from that failure I >> learned that those files, (start_cd.elf, start4cd.elf, fixup_cd.dat, >> fixup4cd.dat) are necessary for the Pi to boot, and that those with the >> bootcode.bin and presumably, but it doesn’t seem to matter whether I use >> bcm2711-rpi-4-b.dtb or bcm2711-rpi-400.dtb - the dtbs are vital to the >> process. - and that all those files simply need to be copied into the fat >> partition/boot directory. >> >> So I burned another image (actually many, trying different SD cards, and >> different configurations, older kernels, etc) and replaced all the files >> I’ve mentioned with the ones from >> https://github.com/raspberrypi/firmware/tree/master/boot (hopefully >> that’s where I should get them). My most recent iteration just has the >> single error repeated: >> >> sdhc: read error intr 2008002 stat 1fff0000 >> >> This occurs many times. In the middle of these errors is >> >> /dev/sdM0: BCM SD Host Controller 02 Version 10 >> >> then the error repeats itself over 50 times before printing out the lines >> /dev/sdM0/data >> bootargs is (tcp, tls, il, local!device)[] >> >> At no time during this process is the keyboard or mouse responsive. >> Though the mouse icon did become visible during the boot process. >> >> I am hoping I am wrong, but I am thinking there is some sort of driver >> issue. At the very least, checking what media there is to mount, or reading >> the SD card. And then possibly for other things, but the former could be >> gumming up the works for everything else. >> >> On Jan 14, 2021, at 6:05 PM, Stuart Morrow >> wrote: >> >> Try copying the .dtb *and* the start4 and fixup4. >> > *9fans * / 9fans / see discussions > + participants > + delivery options > Permalink > > ------------------------------------------ 9fans: 9fans Permalink: https://9fans.topicbox.com/groups/9fans/T0178132f3d2ed689-M635cb4e04d6c4b764cab5ea2 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription