On 06/04/13 04:10, Jon Medhurst (Tixy) wrote:
What are the actual errors you get? What kernel config are you using? Do
you have these options enabled?
The errors are:
mmc0: host doesn't support card's voltages
mmc0: error -22 whilst initialising SD card
SD: Unknown CMD1
The above repeats quite a lot, probably forever. The kernel is
3.10-rc3. The config is vexpress_defconfig.
CONFIG_VEXPRESS_CONFIG=y
CONFIG_SENSORS_VEXPRESS=y
CONFIG_REGULATOR=y
CONFIG_REGULATOR_VEXPRESS=y
CONFIG_NEW_LEDS=y
CONFIG_LEDS_CLASS=y
CONFIG_LEDS_GPIO=y
Thanks. CONFIG_REGULATOR was not set and setting it seems to have
gotten me further. Adding SENSORS_VEXPRESS (and hwmon), and the LED
support made no incremental difference.
On 06/04/13 04:28, Peter Maydell wrote:
> On 4 June 2013 09:10, Jon Medhurst (Tixy) <t...@linaro.org> wrote:
>> Does anyone know if QEMU emulates all the system register bits to
>> actually get the above things working? Linux drivers to use these
>> features were added to 3.7 so QEMU probably wouldn't have needed to
>> support them 9 months ago.
>
> Yes, QEMU 1.5 supports these, so a sufficiently recent QEMU
> will work fine. If you get these messages then you need to
> update your QEMU or use the right dtb blob for your kernel
> or fix your kernel config as Tixy suggests.
$ qemu-system-arm -version
QEMU emulator version 1.4.0 (Debian 1.4.0+dfsg-1expubuntu4), Copyright
(c) 2003-2008 Fabrice Bellard
So my QEMU may be stale, and that may explain why now I get:
clcd-pl11x: probe of 10020000.clcd failed with error -22
clcd-pl11x: probe of 1001f000.clcd failed with error -22
vexpress-sysreg 10000000.sysreg: error -22
VD10: no parameters
vexpress-sysreg 10000000.sysreg: error -22
vexpress-sysreg 10000000.sysreg: error -22
VD10_S2: no parameters
vexpress-sysreg 10000000.sysreg: error -22
vexpress-sysreg 10000000.sysreg: error -22
VD10_S3: no parameters
vexpress-sysreg 10000000.sysreg: error -22
vexpress-sysreg 10000000.sysreg: error -22
VCC1V8: no parameters
vexpress-sysreg 10000000.sysreg: error -22
vexpress-sysreg 10000000.sysreg: error -22
DDR2VTT: no parameters
vexpress-sysreg 10000000.sysreg: error -22
vexpress-sysreg 10000000.sysreg: error -22
VCC3V3: no parameters
vexpress-sysreg 10000000.sysreg: error -22
vexpress-sysreg 10000000.sysreg: error -22
VIO: no parameters
vexpress-sysreg 10000000.sysreg: error -22
However it looks to me like the SD is working now. I think the real
problem now is that it's not succesfully mounting udev or the SD root
partition (even though it sees both partitions). At this point I kind
of need to make some progress so I'm going back to just using my Panda
board.
-dl
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