Chromebook C201 (codename veyron_speedy) support

This introduces Libreboot support for the Asus Chromebook C201 (codename
veyron_speedy). At this point, this produces a standalone Libreboot image that
can be flashed to the RO Coreboot partition of the SPI flash, as well as the
Libreboot version that can be flash to the RO Firmware ID partition.

Libreboot on the Chromebook C201 uses the depthcharge bootloader, modified to
display text messages instead of ChromeOS bitmaps (that encourage the use of
ChromeOS).

For convenience, an installation script, chromebook-flash-replace, is provided
along with a description of the flash layout, to ease the replacement of the
Coreboot and RO Firmware ID partitions on the full SPI flash image.

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>

1 files changed, 33 insertions, 0 deletions

diff --git a/resources/libreboot/patch/vboot/0001-firmware-Developer-mode-timeout-delay-shortening-dow.patch b/resources/libreboot/patch/vboot/0001-firmware-Developer-mode-timeout-delay-shortening-dow.patch
new file mode 100644
index 0000000..f843e50
--- /dev/null
+++ b/resources/libreboot/patch/vboot/0001-firmware-Developer-mode-timeout-delay-shortening-dow.patch
@@ -0,0 +1,33 @@
+From eaf081085930dd7614e2f77bbc1f80d6b1e003eb Mon Sep 17 00:00:00 2001
+From: Paul Kocialkowski <contact@paulk.fr>
+Date: Mon, 10 Aug 2015 20:33:23 +0200
+Subject: [PATCH 1/7] firmware: Developer mode timeout delay shortening (down
+ to 3 seconds)
+
+A timeout delay of 3 seconds, with no bip, is much more appreciable for users.
+
+Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
+---
+ firmware/lib/vboot_audio.c | 6 +-----
+ 1 file changed, 1 insertion(+), 5 deletions(-)
+
+diff --git a/firmware/lib/vboot_audio.c b/firmware/lib/vboot_audio.c
+index e24a039..f96d5f4 100644
+--- a/firmware/lib/vboot_audio.c
++++ b/firmware/lib/vboot_audio.c
+@@ -30,11 +30,7 @@
+ #define MAX_CUSTOM_DELAY      60000
+ 
+ /* These are visible externally only to make testing easier */
+-VbDevMusicNote default_notes_[] = { {20000, 0}, /* 20 seconds */
+-                                    {250, 400}, /* two beeps */
+-                                    {250, 0},
+-                                    {250, 400},
+-                                    {9250, 0} }; /* total 30 seconds */
++VbDevMusicNote default_notes_[] = { {3000, 0} }; /* three seconds */
+ uint32_t default_count_ = sizeof(default_notes_) / sizeof(VbDevMusicNote);
+ 
+ VbDevMusicNote short_notes_[] = { {2000, 0} }; /* two seconds */
+-- 
+1.9.1
+