Can you netboot Linux followed by netbooting Paln9 and have a working USB? > On Jan 15, 2021, at 1:17 PM, Michael Engel <michael.en...@ntnu.no> wrote: > > Hi, > > I didn't test Plan 9 on my RPi 400 so far, but I think the reason for the USB > problems > is the following: > > The Raspberry Pi 400 (along with the Compute Module 4 and the 8 GB RAM > version > of the RPI4) uses a new stepping C0 of the BCM2711. This version does not > have a > dedicated EEPROM for the firmware of the xHCI USB controller and needs an > additional property mailbox call for loading the xHCI firmware after PCIe > reset. > > Some code to load the firmware can be found in the circle bare-metal library > (l. 88ff): > https://github.com/rsta2/circle/blob/Step42.1/lib/usb/xhcidevice.cpp > > -- Michael > > >> On 15 Jan 2021, at 20:54, Mack Wallace <mac...@mapinternet.com> wrote: >> >> I took that microSD card that has the bootable image without USB and put it >> into a traditional Pi4. It boots on that without a problem and has mouse and >> keyboard. I notices that after the additional CPU cores are detected, that >> is mentions usb/hub… usb/kbd…. The image when booting on the Pi 400 never >> provides those messages. >> >> Regards, >> >> Mack >> >>> On Jan 15, 2021, at 1:44 PM, Mack Wallace <mac...@mapinternet.com> 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 <skip.tavakkol...@gmail.com> >>> 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 <mac...@mapinternet.com> 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 <morrow.stu...@gmail.com> >>>>> 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-Mc6cc9a0f86241492f9879a53 Delivery options: https://9fans.topicbox.com/groups/9fans/subscription
