This patch updates the i.MX video driver to store the frame-buffer address in the fb_base field of the global data structure *gd.
By doing this, you can find the frame buffer address using the 'bdinfo' command:
U-Boot > bdinfo arch_number = 0x00000EB9 ... FB base = 0x4F35F1C0
This is very useful when debugging display connections.
Signed-off-by: Eric Nelson eric.nelson@boundarydevices.com Acked-by: Otavio Salvador otavio@ossystems.com.br --- drivers/video/mxc_ipuv3_fb.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/video/mxc_ipuv3_fb.c b/drivers/video/mxc_ipuv3_fb.c index 3e21fb2..f75d770 100644 --- a/drivers/video/mxc_ipuv3_fb.c +++ b/drivers/video/mxc_ipuv3_fb.c @@ -13,6 +13,7 @@
#include <common.h> #include <asm/errno.h> +#include <asm/global_data.h> #include <linux/string.h> #include <linux/list.h> #include <linux/fb.h> @@ -24,6 +25,8 @@ #include "mxcfb.h" #include "ipu_regs.h"
+DECLARE_GLOBAL_DATA_PTR; + static int mxcfb_map_video_memory(struct fb_info *fbi); static int mxcfb_unmap_video_memory(struct fb_info *fbi);
@@ -415,6 +418,8 @@ static int mxcfb_map_video_memory(struct fb_info *fbi)
fbi->screen_size = fbi->fix.smem_len;
+ gd->fb_base = fbi->fix.smem_start; + /* Clear the screen */ memset((char *)fbi->screen_base, 0, fbi->fix.smem_len);