[U-Boot] [PATCH 2/2] video: Add an option to skip video initialization

[Wolfgang Denk]

This patch adds an option to skip the video initialization on for all
video drivers. This is needed for the CPCI750 which can be built as
CPCI host and adapter/target board. And the adapter board can't
access the video cards located on the CompactPCI bus.

Signed-off-by: Stefan Roese <sr at denx.de>
Cc: Anatolij Gustschin <agust at denx.de>

Rebased against simplifying patch.
Signed-off-by: Wolfgang Denk <wd at denx.de>
---
 drivers/video/cfb_console.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/drivers/video/cfb_console.c b/drivers/video/cfb_console.c
index f744d57..81b3131 100644
--- a/drivers/video/cfb_console.c
+++ b/drivers/video/cfb_console.c
@@ -1330,11 +1330,26 @@ static int video_init (void)
 
 /*****************************************************************************/
 
+/*
+ * Implement a weak default function for boards that optionally
+ * need to skip the video initialization.
+ */
+int __board_video_skip(void)
+{
+	/* As default, don't skip test */
+	return 0;
+}
+int board_video_skip(void) __attribute__((weak, alias("__board_video_skip")));
+
 int drv_video_init (void)
 {
 	int skip_dev_init;
 	device_t console_dev;
 
+	/* Check if video initialization should be skipped */
+	if (board_video_skip())
+		return 0;
+
 	/* Init video chip - returns with framebuffer cleared */
 	skip_dev_init = (video_init () == -1)
 
-- 
1.6.0.6