[U-Boot] Linker errors from .u_boot_list in powerpc

[Andy Fleming]

On Tue, Oct 30, 2012 at 1:37 PM, Joe Hershberger
<joe.hershberger at gmail.com> wrote:
> Hi Andy,
>
> On Tue, Oct 30, 2012 at 1:00 PM, Joe Hershberger
> <joe.hershberger at gmail.com> wrote:
>> Hi Marek,
>>
>> Not sure if you were already aware of this, but I ran across these
>> errors with MAKEALL on PPC.
>>
>> alpr:
>> powerpc-linux-gnu-ld: section .bootpg loaded at
>> [00000000fffff000,00000000fffff27f] overlaps section .u_boot_list
>> loaded at [00000000ffffee8c,00000000fffff3cb]
>> powerpc-linux-gnu-ld: u-boot: section .bootpg lma 0xfffff000 adjusted
>> to 0xfffff3cc
>>
>> P2020DS_36BIT:
>> powerpc-linux-gnu-ld: section .bootpg loaded at
>> [00000000effff000,00000000effff4c3] overlaps section .u_boot_list
>> loaded at [00000000efffef60,00000000effff7fb]
>> powerpc-linux-gnu-ld: u-boot: section .bootpg lma 0xeffff000 adjusted
>> to 0xeffff7fc
>>
>> P2020DS_SDCARD:
>> powerpc-linux-gnu-ld: section .bootpg loaded at
>> [00000000f8fff000,00000000f8fff4b3] overlaps section .u_boot_list
>> loaded at [00000000f8ffe874,00000000f8fff10f]
>> powerpc-linux-gnu-ld: u-boot: section .bootpg lma 0xf8fff000 adjusted
>> to 0xf8fff110
>>
>> P2020DS_SPIFLASH:
>> powerpc-linux-gnu-ld: section .bootpg loaded at
>> [00000000f8fff000,00000000f8fff4b3] overlaps section .u_boot_list
>> loaded at [00000000f8ffe778,00000000f8fff013]
>> powerpc-linux-gnu-ld: u-boot: section .bootpg lma 0xf8fff000 adjusted
>> to 0xf8fff014
>
> These appear to simply be because my env changes make the u-boot build
> a bit too big.  What are the memory areas on these 2 boards that can
> be used?

We put u-boot in the last 512k of memory...ish. Theoretically it can
grow or shrink, but we hard-code the start to make it somewhat more
comprehensible. I haven't had a chance to really look at this yet, but
512k is the simple answer (0xfff80000 - 0xffffffff)