[U-Boot] mcf5307, timer 2 issue loading linux

[angelo]

Hi Wolfgang,

i confirm that before the patch/solution applied (i just posted it), i 
also tried "bootm FLASH_ADDR". Same result, loading fail, since timer2 
interrupt is not stopped and the interrupt happen just after the linux 
head.S execution.

As i said, probably this issue was not visible in other coldfire models 
since mcf5307 run at 90mhz only.

I have copied the "arch_preboot_os()" solution from other boards, that 
was doing the same thing, disabling async interrupts before loading the os.

Regards,
angelo


On 03/08/2011 15:07, Wolfgang Denk wrote:
> Dear angelo,
>
> In message<4E390235.2090107 at gmail.com>  you wrote:
>    
>> i am reporting the following issue, maybe related to something wrong in
>> my new mcf5307 support addition (still under testing), or maybe not:
>>
>>
>> 1. U-Boot run correctly, timer2 is enabled as a system timestamp counter.
>> 2. I load a uClinux bianry from flash to SDRAM with  "cp.l FLASH_ADDR
>> SDRAM_ADDR SIZE/4
>> 3. i launch the binary with "go SDRAM_ADDR"
>>      
> You must not start Linux with a "go" command.  Please use "bootm" for
> this purpose (and then you also don;t have to copy the kernal
> manually).
>
> Best regards,
>
> Wolfgang Denk
>
>    


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