From 1d3c266758570ea7d329746ae2d5b31fb12b9f61 Mon Sep 17 00:00:00 2001
From: Devarsh Thakkar <devarsht@ti.com>
Date: Tue, 5 Dec 2023 21:25:16 +0530
Subject: spl: Enforce framebuffer reservation from end of RAM

Add an API which enforces framebuffer reservation from end of RAM.
This is done so that next stage can directly skip this region before
carrying out further reservations.

Signed-off-by: Devarsh Thakkar <devarsht@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
 common/spl/spl.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

(limited to 'common')

diff --git a/common/spl/spl.c b/common/spl/spl.c
index 3ce5bfe..b65c439 100644
--- a/common/spl/spl.c
+++ b/common/spl/spl.c
@@ -42,6 +42,7 @@
 #include <fdt_support.h>
 #include <bootcount.h>
 #include <wdt.h>
+#include <video.h>
 
 DECLARE_GLOBAL_DATA_PTR;
 DECLARE_BINMAN_MAGIC_SYM;
@@ -152,6 +153,24 @@ void spl_fixup_fdt(void *fdt_blob)
 #endif
 }
 
+int spl_reserve_video_from_ram_top(void)
+{
+	if (CONFIG_IS_ENABLED(VIDEO)) {
+		ulong addr;
+		int ret;
+
+		addr = gd->ram_top;
+		ret = video_reserve(&addr);
+		if (ret)
+			return ret;
+		debug("Reserving %luk for video at: %08lx\n",
+		      ((unsigned long)gd->relocaddr - addr) >> 10, addr);
+		gd->relocaddr = addr;
+	}
+
+	return 0;
+}
+
 ulong spl_get_image_pos(void)
 {
 	if (!CONFIG_IS_ENABLED(BINMAN_UBOOT_SYMBOLS))
-- 
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