From 25ce4a908abebf8c7d2e89908d36050e1de9cbec Mon Sep 17 00:00:00 2001
From: Greg Ungerer <gerg@uclinux.org>
Date: Thu, 30 Apr 2009 22:39:50 +1000
Subject: [PATCH] m68knommu: move CPU reset code for the 520x ColdFire into its
platform code
Signed-off-by: Greg Ungerer <gerg@uclinux.org>
---
arch/m68k/include/asm/m520xsim.h | 9 +++++++++
arch/m68knommu/platform/520x/config.c | 15 +++++++++------
2 files changed, 18 insertions(+), 6 deletions(-)
diff --git a/arch/m68k/include/asm/m520xsim.h b/arch/m68k/include/asm/m520xsim.h
index 49d016e6391a3..83bbcfd6e8f2b 100644
--- a/arch/m68k/include/asm/m520xsim.h
+++ b/arch/m68k/include/asm/m520xsim.h
@@ -59,5 +59,14 @@
#define MCFPIT_IMR MCFINTC_IMRL
#define MCFPIT_IMR_IBIT (1 << MCFINT_PIT1)
+/*
+ * Reset Controll Unit.
+ */
+#define MCF_RCR 0xFC0A0000
+#define MCF_RSR 0xFC0A0001
+
+#define MCF_RCR_SWRESET 0x80 /* Software reset bit */
+#define MCF_RCR_FRCSTOUT 0x40 /* Force external reset */
+
/****************************************************************************/
#endif /* m520xsim_h */
diff --git a/arch/m68knommu/platform/520x/config.c b/arch/m68knommu/platform/520x/config.c
index 855fc6a79d72f..1c43a8aec69b9 100644
--- a/arch/m68knommu/platform/520x/config.c
+++ b/arch/m68knommu/platform/520x/config.c
@@ -14,7 +14,6 @@
#include <linux/kernel.h>
#include <linux/param.h>
#include <linux/init.h>
-#include <linux/interrupt.h>
#include <linux/io.h>
#include <asm/machdep.h>
#include <asm/coldfire.h>
@@ -23,10 +22,6 @@
/***************************************************************************/
-void coldfire_reset(void);
-
-/***************************************************************************/
-
static struct mcf_platform_uart m520x_uart_platform[] = {
{
.mapbase = MCF_MBAR + MCFUART_BASE1,
@@ -169,9 +164,17 @@ void mcf_autovector(unsigned int vec)
/***************************************************************************/
+static void m520x_cpu_reset(void)
+{
+ local_irq_disable();
+ __raw_writeb(MCF_RCR_SWRESET, MCF_RCR);
+}
+
+/***************************************************************************/
+
void __init config_BSP(char *commandp, int size)
{
- mach_reset = coldfire_reset;
+ mach_reset = m520x_cpu_reset;
m520x_uarts_init();
m520x_fec_init();
}