Simon,
From: Simon Glass sjg@chromium.org To: Bruce_Leonard@selinc.com Cc: "trini@ti.com" trini@ti.com, U-Boot Mailing List <u- boot@lists.denx.de>, u-boot-bounces@lists.denx.de, Bin Meng bmeng.cn@gmail.com Date: 12/01/2014 12:14 PM Subject: Re: [U-Boot] Bare x86 support is merged to u-boot-x86 Sent by: sjg@google.com
+Bin
Hi Bruce,
On 1 December 2014 at 12:33, Bruce_Leonard@selinc.com wrote:
Hi Simon and Bin,
u-boot-bounces@lists.denx.de wrote on 11/25/2014 01:51:06 PM:
From: Simon Glass sjg@chromium.org To: U-Boot Mailing List u-boot@lists.denx.de Cc: "trini@ti.com" trini@ti.com Date: 11/25/2014 01:52 PM Subject: [U-Boot] Bare x86 support is merged to u-boot-x86 Sent by: u-boot-bounces@lists.denx.de
Hi Bin (and others interested in U-Boot on x86),
I've applied the remaining x86 patches to u-boot-x86. It runs on chromebook_link (Pixel) with support for most hardware relevant to a boot loader: SDRAM, SPI, PCI, USB (and USB Ethernet), SATA (internal 32GB SSD), SD card, LCD, UART, keyboard, EC.
Bin this should be a good base for you to send patches for your Atom platform and I have no major work pending now so should not get in your way.
Instructions on how to build and run are here:
http://www.denx.de/wiki/U-Boot/X86
For this platform 4 binary blobs are needed. This is an unavoidable feature of the platform at present. The blobs cover flash descriptor, SDRAM init, video init and Management Engine. Instructions on how to get these are on the same page.
Here is a list of some missing features:
- README.x86 in the source (mostly the content from the Wiki page
would be a good start)
- MTRR support (for performance)
- Audio
- Chrome OS verified boot (only a rough rebase has been done, I'm not
sure how to track mainline anyway)
- SMI and ACPI support, to provide platform info and facilities to
Linux
This is awesome! Thanks so much for the work you two have done on
this.
We've been using u-boot on our PPC platforms for years and love it.
We're
considering moving to an Atom processor and wanted to continue to use u-boot, but were worried about getting it up and running with the FSL
from
Intel so we haven't made the jump yet. This is going to be a hugeleg
up in
my argument for actually getting that project off the ground. If we
do,
I'll be sure to be pushing out any work we do that isn't in the
mainline.
Thanks again guys!
Sounds good! What Atom are you using? It might be the same one as Bin.
Not sure yet. We had originally settled on the first one Intel put out, but since we've waited so long and we're not locked in by design yet, we'll probably pick a newer generation. Our products tend to be in service for a long time (upwards of 20 years) so we like to get as cutting edge as we can without losing a finger :)
Bruce
Regards, Simon