[U-Boot] [PATCH 1/1] sunxi: video: mark framebuffer as EFI reserved memory

[Heinrich Schuchardt]

Inform the EFI subsystem that the framebuffer memory is reserved.

Without the patch the AllocatePool boot service allocates memory from the
framebuffer which will will be overwritten by screen output.

Signed-off-by: Heinrich Schuchardt <xypron.glpk at gmx.de>
---
 drivers/video/sunxi/sunxi_display.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/video/sunxi/sunxi_display.c b/drivers/video/sunxi/sunxi_display.c
index f191ef16c6..4da169fffd 100644
--- a/drivers/video/sunxi/sunxi_display.c
+++ b/drivers/video/sunxi/sunxi_display.c
@@ -8,6 +8,7 @@
  */
 
 #include <common.h>
+#include <efi_loader.h>
 
 #include <asm/arch/clock.h>
 #include <asm/arch/display.h>
@@ -1207,6 +1208,13 @@ void *video_hw_init(void)
 		      gd->bd->bi_dram[0].size - sunxi_display.fb_size;
 	sunxi_engines_init();
 
+#ifdef CONFIG_EFI_LOADER
+	efi_add_memory_map(gd->fb_base,
+			   ALIGN(sunxi_display.fb_size, EFI_PAGE_SIZE) >>
+			   EFI_PAGE_SHIFT,
+			   EFI_RESERVED_MEMORY_TYPE, false);
+#endif
+
 	fb_dma_addr = gd->fb_base - CONFIG_SYS_SDRAM_BASE;
 	sunxi_display.fb_addr = gd->fb_base;
 	if (overscan_offset) {
-- 
2.16.1