video: sunxi: de2: Reserve the fb region in the EFI memory map

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@freebsd.org>
Acked-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

diff --git a/drivers/video/sunxi/sunxi_de2.c b/drivers/video/sunxi/sunxi_de2.c
index a2303db9af57bb93e48f38a14173db26465c0307..4ed035d556a852d49903374a1d19bdf92838a772 100644 (file)
--- a/drivers/video/sunxi/sunxi_de2.c
+++ b/drivers/video/sunxi/sunxi_de2.c
@@ -9,6 +9,7 @@
 #include <display.h>
 #include <dm.h>
 #include <edid.h>
+#include <efi_loader.h>
 #include <fdtdec.h>
 #include <fdt_support.h>
 #include <video.h>
@@ -221,6 +222,13 @@ 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;
 }