From d06717f853cd98a6a4536e5de5248e6c99a2b7bc Mon Sep 17 00:00:00 2001 From: Heinrich Schuchardt Date: Sat, 3 Mar 2018 10:30:17 +0100 Subject: [PATCH] sunxi: video: mark framebuffer as EFI reserved memory 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 --- 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 +#include #include #include @@ -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) { -- 2.39.5