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-rw-r--r--cpu/i386/Makefile2
-rw-r--r--cpu/i386/cpu.c17
-rw-r--r--cpu/i386/interrupts.c19
-rw-r--r--cpu/i386/resetvec.S (renamed from cpu/i386/reset.S)2
-rw-r--r--cpu/i386/sc520.c14
5 files changed, 31 insertions, 23 deletions
diff --git a/cpu/i386/Makefile b/cpu/i386/Makefile
index 50534b6..f20675a 100644
--- a/cpu/i386/Makefile
+++ b/cpu/i386/Makefile
@@ -28,7 +28,7 @@ include $(TOPDIR)/config.mk
LIB = $(obj)lib$(CPU).a
-START = start.o start16.o reset.o
+START = start.o start16.o resetvec.o
COBJS = serial.o interrupts.o cpu.o timer.o sc520.o
SOBJS = sc520_asm.o
diff --git a/cpu/i386/cpu.c b/cpu/i386/cpu.c
index 5fd37c7..b9af5f8 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)
{
@@ -64,3 +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")));
diff --git a/cpu/i386/interrupts.c b/cpu/i386/interrupts.c
index f6dbcca..badb30b 100644
--- a/cpu/i386/interrupts.c
+++ b/cpu/i386/interrupts.c
@@ -26,6 +26,7 @@
#include <asm/io.h>
#include <asm/i8259.h>
#include <asm/ibmpc.h>
+#include <asm/interrupt.h>
struct idt_entry {
@@ -376,7 +377,7 @@ asm ("idt_ptr:\n"
".long idt\n" /* offset */
".word 0x18\n");/* data segment */
-static void set_vector(int intnum, void *routine)
+void set_vector(int intnum, void *routine)
{
idt[intnum].base_high = (u16)((u32)(routine)>>16);
idt[intnum].base_low = (u16)((u32)(routine)&0xffff);
@@ -507,19 +508,3 @@ int disable_interrupts(void)
return (flags&0x200); /* IE flags is bit 9 */
}
-
-
-#ifdef CONFIG_SYS_RESET_GENERIC
-
-void __attribute__ ((regparm(0))) generate_gpf(void);
-asm(".globl generate_gpf\n"
- "generate_gpf:\n"
- "ljmp $0x70, $0x47114711\n"); /* segment 0x70 is an arbitrary segment which does not
- * exist */
-void reset_cpu(ulong addr)
-{
- set_vector(13, generate_gpf); /* general protection fault handler */
- set_vector(8, generate_gpf); /* double fault handler */
- generate_gpf(); /* start the show */
-}
-#endif
diff --git a/cpu/i386/reset.S b/cpu/i386/resetvec.S
index 07a7384..d9222dd 100644
--- a/cpu/i386/reset.S
+++ b/cpu/i386/resetvec.S
@@ -26,7 +26,7 @@
.extern start16
-.section .reset, "ax"
+.section .resetvec, "ax"
.code16
reset_vector:
cli
diff --git a/cpu/i386/sc520.c b/cpu/i386/sc520.c
index cb6bc03..12e8f38 100644
--- a/cpu/i386/sc520.c
+++ b/cpu/i386/sc520.c
@@ -25,9 +25,6 @@
* but idependent of implementation */
#include <config.h>
-
-#ifdef CONFIG_SC520
-
#include <common.h>
#include <config.h>
#include <pci.h>
@@ -507,4 +504,13 @@ u8 ssi_rx_byte(void)
return read_mmcr_byte(SC520_SSIRCV);
}
-#endif /* CONFIG_SC520 */
+#ifdef CONFIG_SYS_RESET_SC520
+void reset_cpu(ulong addr)
+{
+ printf("Resetting using SC520 MMCR\n");
+ /* Write a '1' to the SYS_RST of the RESCFG MMCR */
+ write_mmcr_word(SC520_RESCFG, 0x0001);
+
+ /* NOTREACHED */
+}
+#endif