Hi Scott,
On Mon, Mar 03, 2008 at 03:55:26PM -0600, Scott Wood wrote:
> Philippe De Muyter wrote:
>> The following seems important also :
>> /*
>> interrupts = <18 2>;
>> */
>> /* interrupts number are coded in hexa ! */
>> interrupts = <12 2 19 2 1a 2 1b 2 35 2 36 2 37 2>;
>> I have replaced the interrupts spec in comments by the longer interrupts
>> spec
>> below,
>
> Why?
because of the error message regarding unhandled interrupt. As I wrote I do
not know anything about dts files, just that it is needed to have one
for a non OF board if I want to use the ARCH=powerpc tree.
>
>> and it seems to have some positive effect,
>
> What kind of positive effect? I'd think the extra interrupts would just be
> ignored. The interrupts property for the PCI node itself is generally for
> error reporting.
My compact-flash device is discovered, but interrupts still do not work.
In the log, at the end of the boot,
this :
rtc-m41t80 0-0068: hctosys: invalid date/time
Waiting 3sec before mounting root device...
VFS: Cannot open root device "hda1" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the
available partitions:
1f00 1920 mtdblock0 (driver?)
1f01 1920 mtdblock1 (driver?)
1f02 1920 mtdblock2 (driver?)
1f03 1920 mtdblock3 (driver?)
1f04 512 mtdblock4 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs on
unknown-block(0,0)
Rebooting in 180 seconds..
is replaced by that :
hda: TRANSCEND, CFA DISK drive
ide0 at 0x000-0x007,0x00e on irq 18
hda: max request size: 128KiB
hda: 8077104 sectors (4135 MB) w/1KiB Cache, CHS=8013/16/63
hda:<4>hda: lost interrupt
[same message repeated]
hda: lost interrupt
hda1
ide-cs: hda: Vpp = 0.0
rtc-m41t80 0-0068: hctosys: invalid date/time
Waiting 3sec before mounting root device...
hda: lost interrupt
[same message repeated]
EXT2-fs warning (device hda1): ext2_fill_super: mounting ext3
filesystem as ext2
VFS: Mounted root (ext2 filesystem) readonly.
Freeing unused kernel memory: 116k init
hda: lost interrupt
[same message repeated]
>
>> I know that 25, 26, 27, 53, 54 and 55 decimal i(hence 19, 1a etc...) are
>> the
>> interrupts numbers that I had in the ARCH=ppc version. I added 18 because
>> of the error message, but it did not help.
>
> What ARCH=ppc version? There are no device trees for non-OF boards in
> arch/ppc.
With ARCH=ppc, all those interrupt's info's are hardcoded in the .c files.
But I expected I could fill the dts file for ARCH=powerpc from info's I
could collect in /proc on a running ARCH=ppc linux without dts file
for the same board.
Philippe
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