[U-Boot] [PATCH] video: sunxi: de2: Reserve the fb region in the EFI memory map

[Emmanuel Vadot]

If compile with support for the efi loader we need to mark the pages
allocated for the framebuffer as reserved so the kernel won't attempt
to use them for other uses.

Signed-off-by: Emmanuel Vadot <manu at freebsd.org>
---
 drivers/video/sunxi/sunxi_de2.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c
index 860187323c..563e4b583d 100644
--- a/drivers/video/sunxi/sunxi_de2.c
+++ b/drivers/video/sunxi/sunxi_de2.c
@@ -10,6 +10,7 @@
 #include <display.h>
 #include <dm.h>
 #include <edid.h>
+#include <efi_loader.h>
 #include <fdtdec.h>
 #include <fdt_support.h>
 #include <video.h>
@@ -222,6 +223,13 @@ static int sunxi_de2_init(struct udevice *dev, ulong fbbase,
 	uc_priv->bpix = l2bpp;
 	debug("fb=%lx, size=%d %d\n", fbbase, uc_priv->xsize, uc_priv->ysize);
 
+#ifdef CONFIG_EFI_LOADER
+	efi_add_memory_map(fbbase,
+			   ALIGN(timing.hactive.typ * timing.vactive.typ *
+			   (1 << l2bpp) / 8, EFI_PAGE_SIZE) >> EFI_PAGE_SHIFT,
+			   EFI_RESERVED_MEMORY_TYPE, false);
+#endif
+
 	return 0;
 }
 
-- 
2.16.3