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authorEric Nelson <eric.nelson@boundarydevices.com>2014-04-29 14:37:56 -0700
committerAnatolij Gustschin <agust@denx.de>2014-04-30 11:15:45 +0200
commita69214dc719862b8433608d7e914e51464dfd14c (patch)
treef88b4d29bd6644036f1aa3ef575a6a44a8fa3259 /drivers/video
parenta405764c1ec835a41ccda943b9156aee25e15d5e (diff)
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video: mxc_ipuv3_fb: stash frame buffer pointer in global data.
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> Acked-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/mxc_ipuv3_fb.c5
1 files changed, 5 insertions, 0 deletions
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);