[U-Boot] [PATCH v2 06/51] x86: Allow use of serial soon after relocation

[Bin Meng]

On Mon, Mar 14, 2016 at 12:18 PM, Bin Meng <bmeng.cn at gmail.com> wrote:
> On Sat, Mar 12, 2016 at 1:06 PM, Simon Glass <sjg at chromium.org> wrote:
>> At present on x86 machines with use cache-as-RAM, the memory goes away just
>> before board_init_r() is called. This means that serial drivers are
>> no-longer unavailable, until initr_dm() it called, etc.
>>
>> Any attempt to use printf() within this period will cause a hang.
>>
>> To fix this, mark the serial devices as 'unavailable' when it is no-longer
>> available. Bring it back when serial_initialize() is called. This means that
>> the debug UART will be used instead for this period.
>>
>> Signed-off-by: Simon Glass <sjg at chromium.org>
>> ---
>>
>> Changes in v2:
>> - Simplify the code in serial_initialize()
>>
>>  common/board_f.c               | 7 +++++++
>>  drivers/serial/serial-uclass.c | 2 +-
>>  2 files changed, 8 insertions(+), 1 deletion(-)
>>
>
> Reviewed-by: Bin Meng <bmeng.cn at gmail.com>

applied to u-boot-x86/next, thanks!