Re: [ts-7000] TS-7250 booting 2.6-git

[uhmgawa <>]

[Re-trying to send this.  Apologies if duplication occurs.]

Lennert Buytenhek wrote:
> On Wed, Apr 26, 2006 at 11:40:33AM -0700, Mike Taht wrote:
> 
>  > My preliminary builds from 2.6-git have failed to boot though, and I'm
>  > thinking that perhaps it's because my bootloader isn't passing the 
> correct
>  > machine identification up to the kernel? (I seem to remember that TS had
>  > arbitrarily chosen one at the time I'd got the board in the first place)
>  > Either that or my entry point is wrong (?) or the patchset bogus...
> 
> One thing you could try is sticking a call to printascii() in the
> vprintk function in kernel/printk.c, i.e. something a la (copy-paste,
> so whitespace-damaged) -- that should give you a bit more info on
> what's going on.

I suspect he may not be getting that far as putstr()
output from arch/arm/boot/compressed/misc.c doesn't
appear to be making it.  You might try turning on
DEBUG in head.S to see if you can glean a few clues
before reaching for that JTAG.

Note also in at least recent trees the boot header
console output is at 57600 baud while you are trying
to bring up the kernel console at 115200B.  You can
modify this here:

--- include/asm-arm/arch-ep93xx/uncompress.h.ORG        2006-04-05 
23:31:26.000000000 -0400
+++ include/asm-arm/arch-ep93xx/uncompress.h    2006-04-26 17:00:31.000000000 
-0400
@@ -25,7 +25,7 @@
      defined(CONFIG_MACH_ZEFEERDZG) || defined(CONFIG_MACH_ZEFEERDZN) || 
defined(CONFIG_MACH_ZEFEERDZQ)
  #      define BAUDRATE ((EP93XX_UART_CLK/(16 * 115200)) - 1)
  #else
-#      define BAUDRATE ((EP93XX_UART_CLK/(16 * 57600)) - 1)
+#      define BAUDRATE ((EP93XX_UART_CLK/(16 * 115200)) - 1)
  #endif

  #define HW_PREG(reg) ((unsigned int volatile *)(io_v2p(reg)))

FWIW I had some issues trying to build for a 9302
vs. 9301 target arch with 2.6.15-gref, though that
may have been cleaned up in the tree you are using.

-john

-- 





 
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