Re: [PATCH] hw/ppc/ppc405_boards: Change kernel load address

[LEROY Christophe]

Le 02/12/2021 à 20:19, Cédric Le Goater a écrit :
> On 12/2/21 20:17, Thomas Huth wrote:
>> On 02/12/2021 20.14, Cédric Le Goater wrote:
>>> The default addresses to load the kernel, fdt, initrd of AMCC boards
>>> in U-Boot v2015.10 are :
>>>
>>>     "kernel_addr_r=1000000\0"
>>>     "fdt_addr_r=1800000\0"
>>>     "ramdisk_addr_r=1900000\0"
>>>
>>> The taihu is one of these boards, the ref405ep is not but we don't
>>> have much information on it and both boards have a very similar
>>> address space layout. Change the kernel load address to match U-Boot
>>> expectations and fix loading.
>>
>> You could additionally mention that U-Boot corrupts the kernel if it 
>> gets loaded to address 0.
> 
> True. The first word is overwritten with zeros. I looked for it
> in the code but could not find the reason.
> 

Isn't it because U-boot unzips the kernel at address 0 ?

Christophe