Hi all,
I have a currently almost working ARCH=ppc linux-2.6.24 configuration for a
new mpc8540 board (except for a RTC chip connected to an i2c bus).
Knowing that ARCH=ppc will be removed, I try to make the ARCH=powerpc version
work, but that's not easy.
I have copied the mpc8540ads.dts file to a new dts file, and added the
following :
[EMAIL PROTECTED] {
+ #address-cells = <1>;
+ #size-cells = <0>;
device_type = "i2c";
compatible = "fsl-i2c";
reg = <3000 100>;
interrupts = <2b 2>;
interrupt-parent = <&mpic>;
dfsrr;
+
+ [EMAIL PROTECTED] {
+ compatible = "stm,m41t81";
+ reg = <68>;
+ };
};
and I see in the boot log that my RTC chip is now working.
My root device is on a compact-flash connected to a PCI yenta chip from TI,
and this one is not working, altough it seems to be discovered :
Yenta: CardBus bridge found at 0000:00:12.0 [0000:0000]
Yenta: Using CSCINT to route CSC interrupts to PCI
Yenta: Routing CardBus interrupts to PCI
Yenta TI: socket 0000:00:12.0, mfunc 0x00001b22, devctl 0x64
irq 18: nobody cared (try booting with the "irqpoll" option)
Call Trace:
[cf813af0] [c00066c8] show_stack+0x3c/0x1bc (unreliable)
[cf813b30] [c003c1ac] __report_bad_irq+0x38/0xcc
[cf813b50] [c003c4c8] note_interrupt+0x288/0x2cc
[cf813b80] [c003cc34] handle_fasteoi_irq+0x94/0xf8
but my boot finally fails with :
VFS: Cannot open root device "hda1" or unknown-block(0,0)
Please append a correct "root=" boot option; here are the
available partitions:
1f00 8192 mtdblock0 (driver?)
Kernel panic - not syncing: VFS: Unable to mount root fs
on unknown-block(0,0)
Is there an easy way to use values found in /proc or even in the sources
in my working ppc setup to put them in the dts file to make my new powerpc
configuration work ?
Thanks for listening
Philippe
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