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forked from pool/u-boot
u-boot/0014-bcm2835-Reserve-the-spin-table-in-e.patch

37 lines
1.0 KiB
Diff

From bc8cf1317fd2b4301a74d00ee47d7d577b77fcdf Mon Sep 17 00:00:00 2001
From: Alexander Graf <agraf@suse.de>
Date: Mon, 6 Jun 2016 23:55:33 +0200
Subject: [PATCH] bcm2835: Reserve the spin table in efi memory map
Firmware provides a spin table on the raspberry pi. This table shouldn't
get overwritten by payloads, so we need to mark it as reserved.
Signed-off-by: Alexander Graf <agraf@suse.de>
---
board/raspberrypi/rpi/rpi.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/board/raspberrypi/rpi/rpi.c b/board/raspberrypi/rpi/rpi.c
index c45ddb1..a2336fc 100644
--- a/board/raspberrypi/rpi/rpi.c
+++ b/board/raspberrypi/rpi/rpi.c
@@ -8,6 +8,7 @@
#include <inttypes.h>
#include <config.h>
#include <dm.h>
+#include <efi_loader.h>
#include <fdt_support.h>
#include <fdt_simplefb.h>
#include <lcd.h>
@@ -480,5 +481,10 @@ int ft_board_setup(void *blob, bd_t *bd)
*/
lcd_dt_simplefb_add_node(blob);
+#ifdef CONFIG_EFI_LOADER
+ /* Reserve the spin table */
+ efi_add_memory_map(0, 1, EFI_RESERVED_MEMORY_TYPE, 0);
+#endif
+
return 0;
}