#include <common.h>
#include <command.h>
+#include <asm/interrupt.h>
-int cpu_init(void)
+int cpu_init_f(void)
{
/* initialize FPU, reset EM, set MP and NE */
asm ("fninit\n" \
return 0;
}
+int cpu_init_r(void)
+{
+ /* Initialize core interrupt and exception functionality of CPU */
+ cpu_init_interrupts ();
+ return 0;
+}
+
int do_reset(cmd_tbl_t *cmdtp, int flag, int argc, char *argv[])
{
printf ("resetting ...\n");
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"
+ ".hidden generate_gpf\n"
+ ".type generate_gpf, @function\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")));