[U-Boot] [PATCH 16/25] x86: Integrate Tunnel Creek processor microcode

[Simon Glass]

Hi Bin,

On 5 December 2014 at 02:14, Bin Meng <bmeng.cn at gmail.com> wrote:
> Hi Simon,
>
> On Fri, Dec 5, 2014 at 7:43 AM, Simon Glass <sjg at chromium.org> wrote:
>> Hi Bin,
>>
>> On 4 December 2014 at 08:02, Bin Meng <bmeng.cn at gmail.com> wrote:
>>> Integrate the processor microcode version 1.05 for Tunnel Creek,
>>> CPUID device 20661h.
>>>
>>> Signed-off-by: Bin Meng <bmeng.cn at gmail.com>
>>> ---
>>>  arch/x86/cpu/queensbay/M0220661105.inc | 1288 ++++++++++++++++++++++++++++++++
>>>  1 file changed, 1288 insertions(+)
>>>  create mode 100644 arch/x86/cpu/queensbay/M0220661105.inc
>>
>> Can we put this into the device tree?
>>
>
> Unfortunately the microcode is required by the call to TempRamInit in
> FSP in car_init, where the device tree functionality is not available.
> We can of course duplicate one in device tree for reference, not sure
> if it is necessary.

OK I was hoping you weren't going to say that. There is not even a
stack at this stage so device tree is out of the question. I wonder
how common this is. Is there any way to provide a 'NULL'  microcode
update and then do it later?

This is some of the pain of dealing with binary blobs.

Let's see where this lands but we may want to change things around in
start.S to provide for this more nicely.

Regards,
Simon