[U-Boot] [RFC PATCH 0/6] x86: New Intel Quark SoC support

[Bin Meng]

Hi Simon,

On Thu, Jan 29, 2015 at 2:05 AM, Simon Glass <sjg at chromium.org> wrote:
> Hi Bin,
>
> On 28 January 2015 at 07:19, Bin Meng <bmeng.cn at gmail.com> wrote:
>> This series adds the first step of bare support for the Intel Quark
>> SoC support which can be validated on Intel Galileo board.
>>
>> Intel Quark is a line of 32-bit x86 SoCs by Intel, designed for small
>> size and low power consumption, and targeted at new markets including
>> wearable devices. They are smaller and slower than Atom processors and
>> consume less power. They lack support for SIMD instruction sets (such
>> as MMX and SSE) and only support embedded operating systems. Quark
>> powers the Intel Galileo developer microcontroller board. The CPU
>> instruction set is the same as Pentium (P54C/i586) CPU.
>>
>> Intel decided to completely publish Quark's hardware specification to
>> software developers, which includes an SoC datasheet, a UEFI Firmware
>> Writer's Guide, and a complete reference source code for the UEFI BIOS
>> which is pre-flahsed on the Galileo board. As of today, the only BIOS
>> for Galileo is the Intel one with UEFI inteface only. There is no CSM
>> support yet in that BIOS, neither any 3rd party BIOS vendor provides
>> support to Quark SoC.
>
> So no binary blobs?

Ah, forget to mention, only one binary blob (exactly 8KiB) is needed
which is rmu.bin for Remote Management Unit. Not like FSP, U-Boot will
not call into the binary. The binary is needed by the Quark SoC
itself. Everything on Quark will have its source codes including MRC.

>>
>> Note there are two generation of Galileo boards, aka gen1 and gen2.
>> Currently the development work is on gen2, but once we get it boot,
>> we can easily add the gen1 board (old version).
>>
>> With this patch series, the generated u-boot.rom could boot the Intel
>> Galileo board up to fdt relocate, where U-Boot hangs because the DRAM
>> is not initializaed yet. A follow up patch series will be sent soon
>> to add support for Memory Reference Code (MRC).
>>
>> Note this patch series may need rebase after Simon's Minnowmax support
>> patch series is applied.
>
> You can rebase on x86/minnow-working if you like.

I will rebase this on u-boot-x86/master since I noticed that you have
already applied the minnowmax patch series.

[snip]

Regards,
Bin