ARM: restart: iop3xx: use new restart hook

Hook these platforms restart code into the arm_pm_restart hook rather
than using arch_reset().

In doing so, we split out the n2100 platform specific restart handler
into the n2100 platform file.

Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/include/asm/hardware/iop3xx.h

@@ -234,6 +234,7 @@ extern int iop3xx_get_init_atu(void);
 void iop3xx_map_io(void);
 void iop_init_cp6_handler(void);
 void iop_init_time(unsigned long tickrate);
+void iop3xx_restart(char, const char *);
 
 static inline u32 read_tmr0(void)
 {

arch/arm/mach-iop32x/em7210.c

@@ -208,4 +208,5 @@ MACHINE_START(EM7210, "Lanner EM7210")
 	.init_irq	= iop32x_init_irq,
 	.timer		= &em7210_timer,
 	.init_machine	= em7210_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END

arch/arm/mach-iop32x/glantank.c

@@ -212,4 +212,5 @@ MACHINE_START(GLANTANK, "GLAN Tank")
 	.init_irq	= iop32x_init_irq,
 	.timer		= &glantank_timer,
 	.init_machine	= glantank_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END

arch/arm/mach-iop32x/include/mach/system.h

@@ -7,10 +7,6 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include <asm/mach-types.h>
-#include <asm/hardware/iop3xx.h>
-#include <mach/n2100.h>
-
 static inline void arch_idle(void)
 {
 	cpu_do_idle();
@@ -18,15 +14,4 @@ static inline void arch_idle(void)
 
 static inline void arch_reset(char mode, const char *cmd)
 {
-	if (machine_is_n2100()) {
-		gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW);
-		gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT);
-		while (1)
-			;
-	}
-
-	*IOP3XX_PCSR = 0x30;
-
-	/* Jump into ROM at address 0 */
-	soft_restart(0);
 }

arch/arm/mach-iop32x/iq31244.c

@@ -318,6 +318,7 @@ MACHINE_START(IQ31244, "Intel IQ31244")
 	.init_irq	= iop32x_init_irq,
 	.timer		= &iq31244_timer,
 	.init_machine	= iq31244_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END
 
 /* There should have been an ep80219 machine identifier from the beginning.
@@ -332,4 +333,5 @@ MACHINE_START(EP80219, "Intel EP80219")
 	.init_irq	= iop32x_init_irq,
 	.timer		= &iq31244_timer,
 	.init_machine	= iq31244_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END

arch/arm/mach-iop32x/iq80321.c

@@ -191,4 +191,5 @@ MACHINE_START(IQ80321, "Intel IQ80321")
 	.init_irq	= iop32x_init_irq,
 	.timer		= &iq80321_timer,
 	.init_machine	= iq80321_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END

arch/arm/mach-iop32x/n2100.c

@@ -291,6 +291,14 @@ static void n2100_power_off(void)
 		;
 }
 
+static void n2100_restart(char mode, const char *cmd)
+{
+	gpio_line_set(N2100_HARDWARE_RESET, GPIO_LOW);
+	gpio_line_config(N2100_HARDWARE_RESET, GPIO_OUT);
+	while (1)
+		;
+}
+
 
 static struct timer_list power_button_poll_timer;
 
@@ -332,4 +340,5 @@ MACHINE_START(N2100, "Thecus N2100")
 	.init_irq	= iop32x_init_irq,
 	.timer		= &n2100_timer,
 	.init_machine	= n2100_init_machine,
+	.restart	= n2100_restart,
 MACHINE_END

arch/arm/mach-iop33x/include/mach/system.h

@@ -7,8 +7,6 @@
  * it under the terms of the GNU General Public License version 2 as
  * published by the Free Software Foundation.
  */
-#include <asm/hardware/iop3xx.h>
-
 static inline void arch_idle(void)
 {
 	cpu_do_idle();
@@ -16,8 +14,4 @@ static inline void arch_idle(void)
 
 static inline void arch_reset(char mode, const char *cmd)
 {
-	*IOP3XX_PCSR = 0x30;
-
-	/* Jump into ROM at address 0 */
-	soft_restart(0);
 }

arch/arm/mach-iop33x/iq80331.c

@@ -146,4 +146,5 @@ MACHINE_START(IQ80331, "Intel IQ80331")
 	.init_irq	= iop33x_init_irq,
 	.timer		= &iq80331_timer,
 	.init_machine	= iq80331_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END

arch/arm/mach-iop33x/iq80332.c

@@ -146,4 +146,5 @@ MACHINE_START(IQ80332, "Intel IQ80332")
 	.init_irq	= iop33x_init_irq,
 	.timer		= &iq80332_timer,
 	.init_machine	= iq80332_init_machine,
+	.restart	= iop3xx_restart,
 MACHINE_END

arch/arm/plat-iop/Makefile

@@ -14,6 +14,7 @@ obj-$(CONFIG_ARCH_IOP32X) += io.o
 obj-$(CONFIG_ARCH_IOP32X) += cp6.o
 obj-$(CONFIG_ARCH_IOP32X) += adma.o
 obj-$(CONFIG_ARCH_IOP32X) += pmu.o
+obj-$(CONFIG_ARCH_IOP32X) += restart.o
 
 # IOP33X
 obj-$(CONFIG_ARCH_IOP33X) += gpio.o
@@ -25,6 +26,7 @@ obj-$(CONFIG_ARCH_IOP33X) += io.o
 obj-$(CONFIG_ARCH_IOP33X) += cp6.o
 obj-$(CONFIG_ARCH_IOP33X) += adma.o
 obj-$(CONFIG_ARCH_IOP33X) += pmu.o
+obj-$(CONFIG_ARCH_IOP33X) += restart.o
 
 # IOP13XX
 obj-$(CONFIG_ARCH_IOP13XX) += cp6.o

arch/arm/plat-iop/restart.c

@@ -0,0 +1,19 @@
+/*
+ * restart.c
+ *
+ * Copyright (C) 2001 MontaVista Software, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#include <asm/hardware/iop3xx.h>
+#include <mach/hardware.h>
+
+void iop3xx_restart(char mode, const char *cmd)
+{
+	*IOP3XX_PCSR = 0x30;
+
+	/* Jump into ROM at address 0 */
+	soft_restart(0);
+}