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 <[email protected]>
---
drivers/video/mxc_ipuv3_fb.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/video/mxc_ipuv3_fb.c b/drivers/video/mxc_ipuv3_fb.c
index 3e21fb2..08a94c2 100644
--- a/drivers/video/mxc_ipuv3_fb.c
+++ b/drivers/video/mxc_ipuv3_fb.c
@@ -10,9 +10,9 @@
*
* SPDX-License-Identifier: GPL-2.0+
*/
-
#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 +24,8 @@
#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 +417,7 @@ 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);
--
1.9.1
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