On Fri, Nov 2, 2018 at 8:32 AM Philippe Mathieu-Daudé <f4...@amsat.org> wrote: > > Hi Guenter, > > On Fri, Nov 2, 2018 at 3:52 AM Guenter Roeck <li...@roeck-us.net> wrote: > > > > On 11/1/18 5:12 PM, Philippe Mathieu-Daudé wrote: > > > Hi, > > > > > > This series is a mix of a previous work I had for the raspi, and a patch > > > from > > > Guenter: > > > https://lists.gnu.org/archive/html/qemu-devel/2018-07/msg03153.html > > > > > > The final patch keep Guenter ideas and comments, but is mostly a rewrite. > > > I dropped the A2W code from this work, it doesn't seems unuseful to me. > > > > > > Guenter can you test this series? > > > > > > > arm/raspi2 works, but aarch64/raspi3 stalls. > > Thanks for testing it! > > So I suppose the A2W is required. And I'm probably using a too old kernel, > I'm using the Buster preview following Peter's post [1]: > > [ 0.000000] Linux version 4.14.0-3-arm64 > (debian-ker...@lists.debian.org) (gcc version 7.2.0 (Debian 7.2.0-18)) > #1 SMP Debian 4.14.12-2 (2018-01-06) > [ 0.000000] Machine model: Raspberry Pi 3 Model B > [...] > [ 8.044215] systemd[1]: Detected architecture arm64. > Welcome to Debian GNU/Linux buster/sid! > > Debian GNU/Linux buster/sid rpi3 ttyAMA0 > > rpi3 login: root > Password: > Linux rpi3 4.14.0-3-arm64 #1 SMP Debian 4.14.12-2 (2018-01-06) aarch64 > root@rpi3:~# > > I'll look for a newer kernel.
I'm a bit confuse since I can boot a 4.19 kernel: [ 0.000000] Booting Linux on physical CPU 0x0000000000 [0x410fd034] [ 0.000000] Linux version 4.19.0 (gokrazy@docker) (gcc version 6.3.0 20170516 (Debian 6.3.0-18)) #1 SMP PREEMPT Wed Mar 1 20:57:29 UTC 2017 [ 0.000000] Machine model: Raspberry Pi 3 Model B [ 0.000000] earlycon: pl11 at MMIO 0x000000003f201000 (options '') [ 0.000000] bootconsole [pl11] enabled ... [ 2.722577] Freeing unused kernel memory: 5696K [ 2.723256] Run /init as init process Loading, please wait... starting version 236 ... root@rpi3:~# uname -a Linux rpi3 4.19.0 #1 SMP PREEMPT Wed Mar 1 20:57:29 UTC 2017 aarch64 GNU/Linux > > BTW I use these QEMU command line options while testing: > > qemu-system-aarch64 \ > -d unimp,guest_errors \ > -trace bcm2835_cprman_rd_\* -trace bcm2835_cprman_wr_\* \ > ... > > And the cmdline suggested by Peter: > > -append "rw earlycon=pl011,0x3f201000 console=ttyAMA0 loglevel=8 > root=/dev/mmcblk0p2 fsck.repair=yes net.ifnames=0 rootwait memtest=1" > > [1] > https://translatedcode.wordpress.com/2018/04/25/debian-on-qemus-raspberry-pi-3-model/ > > > > > [ 45.683302] Run /sbin/init as init process init is ran way after A2W register accesses, so I doubt they are the problem here. Can you provide me your testing setup? Thanks, Phil. > > [ 50.745961] random: dd: uninitialized urandom read (512 bytes read) > > [ 77.478266] Writes: Total: 2074828 Max/Min: 0/0 Fail: 0 > > > > ... then nothing else until I abort the session. > > > > This is with the series applied on top of master. > > > > Guenter > > > > > I kept Guenter S-o-b and (C), is that OK? (Guenter?, Peter?) > > > > > > - patches 1, 7: obvious updates in MAINTAINERS > > > - patches 3, 4: simple cleanups > > > - patches 2, 5: add UNIMP code > > > - patch 6: add the cprman (KISS init values from Guenter) > > > > > > Peter: can you take patch #1 for 3.1? > > > > > > Regards, > > > > > > Phil. > > > > > > Philippe Mathieu-Daudé (7): > > > MAINTAINERS: Add an entry for the Raspberry Pi machines > > > hw/misc/bcm2835_property: Handle the 'domain state' property > > > hw/arm/bcm2835: Use 0x prefix for hex numbers > > > hw/arm/bcm2835: Rename some definitions > > > hw/arm/bcm2835: Add various unimplemented peripherals > > > hw/arm/bcm2835: Add basic support for cprman (clock subsystem) > > > MAINTAINERS: Volunteer to review Raspi patches > > > > > > MAINTAINERS | 7 + > > > hw/arm/bcm2835_peripherals.c | 42 +++- > > > hw/char/bcm2835_aux.c | 2 +- > > > hw/intc/bcm2836_control.c | 4 +- > > > hw/misc/Makefile.objs | 1 + > > > hw/misc/bcm2835_cprman.c | 277 +++++++++++++++++++++++++++ > > > hw/misc/bcm2835_property.c | 8 +- > > > hw/misc/trace-events | 8 + > > > include/hw/arm/bcm2835_peripherals.h | 11 ++ > > > include/hw/arm/raspi_platform.h | 6 +- > > > include/hw/misc/bcm2835_cprman.h | 28 +++ > > > 11 files changed, 387 insertions(+), 7 deletions(-) > > > create mode 100644 hw/misc/bcm2835_cprman.c > > > create mode 100644 include/hw/misc/bcm2835_cprman.h > > > > >
