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common: board_f: Pass frame buffer info from SPL to u-boot 

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-jain1@ti.com>
This commit is contained in:
Nikhil M Jain 2023-06-09 14:52:33 +05:30 committed by Udit Kumar
parent 0878bacfa7
commit 898272c136
2 changed files with 22 additions and 1 deletions
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11
common/board_f.c
View File

@ -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;

12
drivers/video/video-uclass.c
View File

@ -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>
@ -123,6 +125,16 @@ 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;
}