[U-Boot] [PATCH 3/5] x86: queensbay: Support pre-relocation dm pci

[Bin Meng]

Hi Simon,

On Mon, Aug 3, 2015 at 6:31 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Bin,
>
> On 27 July 2015 at 01:33, Bin Meng <bmeng.cn at gmail.com> wrote:
>> Increase CONFIG_MALLOC_F_LEN so that dm pci does not fail with -ENOMEM
>> before relocation. This makes pci uart work again on Intel Crown Bay.
>>
>> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
>> ---
>>
>>  arch/x86/cpu/queensbay/Kconfig |  3 +++
>>  arch/x86/cpu/queensbay/tnc.c   | 13 +++++++++++++
>>  arch/x86/dts/crownbay.dts      |  2 --
>>  3 files changed, 16 insertions(+), 2 deletions(-)
>>
>> diff --git a/arch/x86/cpu/queensbay/Kconfig b/arch/x86/cpu/queensbay/Kconfig
>> index fbf85f2..8eb619c 100644
>> --- a/arch/x86/cpu/queensbay/Kconfig
>> +++ b/arch/x86/cpu/queensbay/Kconfig
>> @@ -42,4 +42,7 @@ config CPU_ADDR_BITS
>>         int
>>         default 32
>>
>> +config SYS_MALLOC_F_LEN
>> +       default 0x8000
>
> 32KB? Wow that's a huge amount. How much does it actually use? Perhaps
> we should change PCI so that it respects the u-boot,dm-pre-reloc
> property?
>

I just add a zero to the original value :) I did not measure the
actual memory consumption since after fsp_init() we have plenty of
memory to be used as the stack. For queensbay platform, it has lots of
pci devices each of which will need allocate some memory for dm pci to
use.

Regards,
Bin