[PATCH V4 5/9] common: board_f: Pass frame buffer info from SPL to u-boot

[Nikhil M Jain]

U-boot proper can use frame buffer address passed from SPL to reserve
the memory area used by framebuffer set in SPL so that splash image
set in SPL continues to get displayed while u-boot proper is running.

Put the framebuffer address and size in a bloblist to make them
available at u-boot proper, if in u-boot proper CONFIG_VIDEO is defined.

Signed-off-by: Nikhil M Jain <n-ja...@ti.com>
Reviewed-by: Devarsh Thakkar <devar...@ti.com>
Reviewed-by: Simon Glass <s...@chromium.org>
---
V4:
- Add Reviewed-by tag.

V3:
- Clean up errors appeared in checkpatch.

V2:
- Fix commit message.
- Revert use of #if.

 common/board_f.c             | 11 ++++++++++-
 drivers/video/video-uclass.c | 12 ++++++++++++
 2 files changed, 22 insertions(+), 1 deletion(-)

diff --git a/common/board_f.c b/common/board_f.c
index 1688e27071..8e5dbaf06c 100644
--- a/common/board_f.c
+++ b/common/board_f.c
@@ -411,7 +411,16 @@ __weak int arch_reserve_mmu(void)
 
 static int reserve_video(void)
 {
-       if (IS_ENABLED(CONFIG_VIDEO)) {
+       if (IS_ENABLED(CONFIG_SPL_VIDEO) && spl_phase() > PHASE_SPL &&
+           CONFIG_IS_ENABLED(BLOBLIST)) {
+               struct video_handoff *ho;
+
+               ho = bloblist_find(BLOBLISTT_U_BOOT_VIDEO, sizeof(*ho));
+               if (!ho)
+                       return log_msg_ret("blf", -ENOENT);
+               video_reserve_from_bloblist(ho);
+               gd->relocaddr = ho->fb;
+       } else if (CONFIG_IS_ENABLED(VIDEO)) {
                ulong addr;
                int ret;
 
diff --git a/drivers/video/video-uclass.c b/drivers/video/video-uclass.c
index 497ebd9acf..1a318e2310 100644
--- a/drivers/video/video-uclass.c
+++ b/drivers/video/video-uclass.c
@@ -6,12 +6,14 @@
 #define LOG_CATEGORY UCLASS_VIDEO
 
 #include <common.h>
+#include <bloblist.h>
 #include <console.h>
 #include <cpu_func.h>
 #include <dm.h>
 #include <log.h>
 #include <malloc.h>
 #include <mapmem.h>
+#include <spl.h>
 #include <stdio_dev.h>
 #include <video.h>
 #include <video_console.h>
@@ -139,6 +141,16 @@ int video_reserve(ulong *addrp)
        debug("Video frame buffers from %lx to %lx\n", gd->video_bottom,
              gd->video_top);
 
+       if (spl_phase() == PHASE_SPL && CONFIG_IS_ENABLED(BLOBLIST)) {
+               struct video_handoff *ho;
+
+               ho = bloblist_add(BLOBLISTT_U_BOOT_VIDEO, sizeof(*ho), 0);
+               if (!ho)
+                       return log_msg_ret("blf", -ENOENT);
+               ho->fb = *addrp;
+               ho->size = size;
+       }
+
        return 0;
 }
 
-- 
2.34.1