[U-Boot] [PATCH 33/82] x86: dts: Mark serial as needed before relocation

[Simon Glass]

Hi Bin,

On 10 October 2016 at 21:16, Bin Meng <bmeng.cn at gmail.com> wrote:
> Hi Simon,
>
> On Mon, Sep 26, 2016 at 11:33 AM, Simon Glass <sjg at chromium.org> wrote:
>> We almost always need the serial port before relocation, so mark it as such.
>> This will ensure that it appears in the device tree for SPL, if used.
>>
>> Signed-off-by: Simon Glass <sjg at chromium.org>
>> ---
>>
>>  arch/x86/dts/serial.dtsi | 1 +
>>  1 file changed, 1 insertion(+)
>>
>> diff --git a/arch/x86/dts/serial.dtsi b/arch/x86/dts/serial.dtsi
>> index 54c3faf..22f7b54 100644
>> --- a/arch/x86/dts/serial.dtsi
>> +++ b/arch/x86/dts/serial.dtsi
>> @@ -1,5 +1,6 @@
>>  / {
>>         serial: serial {
>> +               u-boot,dm-pre-reloc;
>
> The ns16550 driver already has the pre-relocation flag, why is this
> still needed?

Without this, it will not appear in the SPL device tree (fdtgrep will
drop it). So we need it here.

>
>>                 compatible = "ns16550";
>>                 reg = <0x3f8 8>;
>>                 reg-shift = <0>;
>> --

Regards,
Simon