[PATCH] PowerPC 440EPx: Sequoia bootwrapper

2009-07-21 Thread Bob Burke 
The system clock frequency on the Sequoia board is 33.00 MHz not
33.33 MHz; this causes the system time to drift more than 30 seconds
per hour.

diff -ruN a/arch/powerpc/boot/cuboot-sequoia.c
b/arch/powerpc/boot/cuboot-sequoia.c
--- a/arch/powerpc/boot/cuboot-sequoia.c2009-05-18
19:52:34.0 -0400
+++ b/arch/powerpc/boot/cuboot-sequoia.c2009-07-21
09:13:13.0 -0400
@@ -37,7 +37,7 @@

 static void sequoia_fixups(void)
 {
-   unsigned long sysclk = ;
+   unsigned long sysclk = 3300;

ibm440ep_fixup_clocks(sysclk, 11059200, 5000);
ibm4xx_fixup_ebc_ranges(/plb/opb/ebc);

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RE: [PATCH] PowerPC 440EPx: Sequoia bootwrapper

2009-07-21 Thread Bob Burke 
On Tue, 21 Jul 2009 16:06:53 Stefan Roese wrote:
  Unfortunately it's not that easy. Earlier Sequoia board revisions are
  equipped with an 33.333MHz oscillator. This can be detected via a
CPLD
  register though.

Thanks, I didn't realize that. FYI our deployed platform is similar to
Sequoia,
but is a custom design. It has a 33 MHz system clock.

  But why are you using the boot wrapper? If your U-Boot isn't too old,
you can
  boot uImage directly (with dtb of course). No need for the wrapper.

Since we have deployed product, using a non OF kernel, we have made the
decision
not to upgrade U-Boot in the field.

Thanks,
Bob
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