x86: broadwell: Add video support
Add a video driver for Intel's broadwell integrated graphics controller.
This uses a binary blob for most init, with the driver just performing a few
basic tasks.
This driver supports VESA as the mode-setting mechanism. Since most boards
don't support driver model yet with VESA, a special case is added to the
Kconfig for broadwell. Eventually all boards will use driver model and this
can be removed.
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index ff4179f..8361a71 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -112,7 +112,7 @@
config FRAMEBUFFER_SET_VESA_MODE
bool "Set framebuffer graphics resolution"
- depends on VIDEO_VESA
+ depends on VIDEO_VESA || VIDEO_BROADWELL_IGD
help
Set VESA/native framebuffer mode (needed for bootsplash and graphical
framebuffer console)
@@ -362,6 +362,18 @@
The devices provide a simple interface to start up the display,
read display information and enable it.
+config VIDEO_BROADWELL_IGD
+ bool "Enable Intel Broadwell integrated graphics device"
+ depends on X86
+ help
+ This enabled support for integrated graphics on Intel broadwell
+ devices. Initialisation is mostly performed by a VGA boot ROM, with
+ some setup handled by U-Boot itself. The graphics adaptor works as
+ a VESA device and supports LCD panels, eDP and LVDS outputs.
+ Configuration of most aspects of device operation is performed using
+ a special tool which configures the VGA ROM, but the graphics
+ resolution can be selected in U-Boot.
+
config VIDEO_ROCKCHIP
bool "Enable Rockchip video support"
depends on DM_VIDEO