X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=cpu%2Fi386%2Fcpu.c;h=b9af5f89d532c11356b2f31f9bfe1a78e9604e98;hb=3f5f18d12d32ee0661bf51dfc55752c005230d6e;hp=f24e4ba525faef54db0be44af5e212e6c5c8e497;hpb=8bde7f776c77b343aca29b8c7b58464d915ac245;p=oweals%2Fu-boot.git

diff --git a/cpu/i386/cpu.c b/cpu/i386/cpu.c
index f24e4ba525..b9af5f89d5 100644
--- a/cpu/i386/cpu.c
+++ b/cpu/i386/cpu.c
@@ -35,6 +35,7 @@
 
 #include <common.h>
 #include <command.h>
+#include <asm/interrupt.h>
 
 int cpu_init(void)
 {
@@ -50,8 +51,6 @@ int cpu_init(void)
 
 int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
 {
-	extern void reset_cpu(ulong addr);
-
 	printf ("resetting ...\n");
 	udelay(50000);				/* wait 50 ms */
 	disable_interrupts();
@@ -66,3 +65,19 @@ void  flush_cache (unsigned long dummy1, unsigned long dummy2)
 	asm("wbinvd\n");
 	return;
 }
+
+void __attribute__ ((regparm(0))) generate_gpf(void);
+
+/* segment 0x70 is an arbitrary segment which does not exist */
+asm(".globl generate_gpf\n"
+    "generate_gpf:\n"
+    "ljmp   $0x70, $0x47114711\n");
+
+void __reset_cpu(ulong addr)
+{
+	printf("Resetting using i386 Triple Fault\n");
+	set_vector(13, generate_gpf);  /* general protection fault handler */
+	set_vector(8, generate_gpf);   /* double fault handler */
+	generate_gpf();                /* start the show */
+}
+void reset_cpu(ulong addr) __attribute__((weak, alias("__reset_cpu")));