From 3cccc93a2647c00f24f62d4f88919ee60433d0bf Mon Sep 17 00:00:00 2001
From: ian <ian@FreeBSD.org>
Date: Sat, 1 Mar 2014 19:02:00 +0000
Subject: Prevent fdt data loaded from a file from overwriting the kernel
 environment, by having uboot_autoload() do the fdt setup (which may load a
 file) rather than waiting until we're actually in the process of launching
 the kernel.

As part of making this happen...
 - Define LOADER_FDT_SUPPORT on the uboot/lib compile command line when
   MK_FDT is set.
 - Make fdt_setup_fdtb() public.
 - Declare public fdt_whatever() functions in a header instead of using
   scattered extern decls in .c files.
---
 sys/boot/uboot/lib/module.c | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

(limited to 'sys/boot/uboot/lib/module.c')

diff --git a/sys/boot/uboot/lib/module.c b/sys/boot/uboot/lib/module.c
index f03d644..d9b3dc0 100644
--- a/sys/boot/uboot/lib/module.c
+++ b/sys/boot/uboot/lib/module.c
@@ -29,19 +29,23 @@ __FBSDID("$FreeBSD$");
 
 /*
  * U-Boot-specific module functionality.
- *
- * XXX not much for now...
- *
  */
 
 #include <stand.h>
 #include <string.h>
 
 #include "bootstrap.h"
+#include "libuboot.h"
 
 int
 uboot_autoload(void)
 {
+#if defined(LOADER_FDT_SUPPORT)
+	int err;
+
+	if ((err = fdt_setup_fdtp()) != 0)
+		return (err);
+#endif
 
 	return(0);
 }
-- 
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