[ARM] 4807/2: ixp4xx: Merge nslu2-power.c into nslu2-setup.c

There is no reason to have power control in a separate file from the
board setup code.  Merge it back into the board setup file, removing
superfluous header includes and removing superfluous constants from
the machine header file.

--

Signed-off-by: Rod Whitby <rod@whitby.id.au>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

4 files changed, 48 insertions, 117 deletions

diff --git a/arch/arm/mach-ixp4xx/Makefile b/arch/arm/mach-ixp4xx/Makefile
index 4bb97e13f957..4fc7316191e9 100644
--- a/arch/arm/mach-ixp4xx/Makefile
+++ b/arch/arm/mach-ixp4xx/Makefile
@@ -23,7 +23,7 @@ obj-$(CONFIG_MACH_AVILA)	+= avila-setup.o
 obj-$(CONFIG_MACH_IXDPG425)     += coyote-setup.o
 obj-$(CONFIG_ARCH_ADI_COYOTE)   += coyote-setup.o
 obj-$(CONFIG_MACH_GTWX5715)     += gtwx5715-setup.o
-obj-$(CONFIG_MACH_NSLU2)        += nslu2-setup.o nslu2-power.o
+obj-$(CONFIG_MACH_NSLU2)        += nslu2-setup.o
 obj-$(CONFIG_MACH_NAS100D)      += nas100d-setup.o nas100d-power.o
 obj-$(CONFIG_MACH_DSMG600)      += dsmg600-setup.o dsmg600-power.o
 obj-$(CONFIG_MACH_GATEWAY7001)  += gateway7001-setup.o
diff --git a/arch/arm/mach-ixp4xx/nslu2-power.c b/arch/arm/mach-ixp4xx/nslu2-power.c
deleted file mode 100644
index 6f10dc208320..000000000000
--- a/arch/arm/mach-ixp4xx/nslu2-power.c
+++ /dev/null
@@ -1,91 +0,0 @@
-/*
- * arch/arm/mach-ixp4xx/nslu2-power.c
- *
- * NSLU2 Power/Reset driver
- *
- * Copyright (C) 2005 Tower Technologies
- *
- * based on nslu2-io.c
- *  Copyright (C) 2004 Karen Spearel
- *
- * Author: Alessandro Zummo <a.zummo@towertech.it>
- * Maintainers: http://www.nslu2-linux.org/
- *
- * 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 <linux/module.h>
-#include <linux/reboot.h>
-#include <linux/irq.h>
-#include <linux/interrupt.h>
-
-#include <asm/mach-types.h>
-
-static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
-{
-        /* Signal init to do the ctrlaltdel action, this will bypass init if
-         * it hasn't started and do a kernel_restart.
-         */
-        ctrl_alt_del();
-
-        return IRQ_HANDLED;
-}
-
-static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
-{
-        /* This is the paper-clip reset, it shuts the machine down directly.
-         */
-        machine_power_off();
-
-        return IRQ_HANDLED;
-}
-
-static int __init nslu2_power_init(void)
-{
-        if (!(machine_is_nslu2()))
-                return 0;
-
-        *IXP4XX_GPIO_GPISR = 0x20400000;        /* read the 2 irqs to clr */
-
-        set_irq_type(NSLU2_RB_IRQ, IRQT_LOW);
-        set_irq_type(NSLU2_PB_IRQ, IRQT_HIGH);
-
-        if (request_irq(NSLU2_RB_IRQ, &nslu2_reset_handler,
-                IRQF_DISABLED, "NSLU2 reset button", NULL) < 0) {
-
-                printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
-                        NSLU2_RB_IRQ);
-
-                return -EIO;
-        }
-
-        if (request_irq(NSLU2_PB_IRQ, &nslu2_power_handler,
-                IRQF_DISABLED, "NSLU2 power button", NULL) < 0) {
-
-                printk(KERN_DEBUG "Power Button IRQ %d not available\n",
-                        NSLU2_PB_IRQ);
-
-                return -EIO;
-        }
-
-        return 0;
-}
-
-static void __exit nslu2_power_exit(void)
-{
-        if (!(machine_is_nslu2()))
-                return;
-
-        free_irq(NSLU2_RB_IRQ, NULL);
-        free_irq(NSLU2_PB_IRQ, NULL);
-}
-
-module_init(nslu2_power_init);
-module_exit(nslu2_power_exit);
-
-MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
-MODULE_DESCRIPTION("NSLU2 Power/Reset driver");
-MODULE_LICENSE("GPL");
diff --git a/arch/arm/mach-ixp4xx/nslu2-setup.c b/arch/arm/mach-ixp4xx/nslu2-setup.c
index fd9ec17c8b86..acaebcbce53a 100644
--- a/arch/arm/mach-ixp4xx/nslu2-setup.c
+++ b/arch/arm/mach-ixp4xx/nslu2-setup.c
@@ -3,22 +3,26 @@
  *
  * NSLU2 board-setup
  *
- * based ixdp425-setup.c:
+ * Copyright (C) 2008 Rod Whitby <rod@whitby.id.au>
+ *
+ * based on ixdp425-setup.c:
  *      Copyright (C) 2003-2004 MontaVista Software, Inc.
+ * based on nslu2-power.c:
+ *      Copyright (C) 2005 Tower Technologies
  *
  * Author: Mark Rakes <mrakes at mac.com>
  * Author: Rod Whitby <rod@whitby.id.au>
+ * Author: Alessandro Zummo <a.zummo@towertech.it>
  * Maintainers: http://www.nslu2-linux.org/
  *
- * Fixed missing init_time in MACHINE_START kas11 10/22/04
- * Changed to conform to new style __init ixdp425 kas11 10/22/04
  */
 
 #include <linux/if_ether.h>
-#include <linux/kernel.h>
+#include <linux/irq.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
 #include <linux/leds.h>
+#include <linux/reboot.h>
 #include <linux/i2c.h>
 #include <linux/i2c-gpio.h>
 
@@ -27,6 +31,7 @@
 #include <asm/mach/flash.h>
 #include <asm/mach/time.h>
 #include <asm/io.h>
+#include <asm/gpio.h>
 
 static struct flash_platform_data nslu2_flash_data = {
         .map_name               = "cfi_probe",
@@ -181,6 +186,25 @@ static void nslu2_power_off(void)
         gpio_line_set(NSLU2_PO_GPIO, IXP4XX_GPIO_HIGH);
 }
 
+static irqreturn_t nslu2_power_handler(int irq, void *dev_id)
+{
+        /* Signal init to do the ctrlaltdel action, this will bypass init if
+         * it hasn't started and do a kernel_restart.
+         */
+        ctrl_alt_del();
+
+        return IRQ_HANDLED;
+}
+
+static irqreturn_t nslu2_reset_handler(int irq, void *dev_id)
+{
+        /* This is the paper-clip reset, it shuts the machine down directly.
+         */
+        machine_power_off();
+
+        return IRQ_HANDLED;
+}
+
 static void __init nslu2_timer_init(void)
 {
     /* The xtal on this machine is non-standard. */
@@ -206,8 +230,6 @@ static void __init nslu2_init(void)
         nslu2_flash_resource.end =
                 IXP4XX_EXP_BUS_BASE(0) + ixp4xx_exp_bus_size - 1;
 
-        pm_power_off = nslu2_power_off;
-
         i2c_register_board_info(0, nslu2_i2c_board_info,
                                 ARRAY_SIZE(nslu2_i2c_board_info));
 
@@ -220,6 +242,23 @@ static void __init nslu2_init(void)
 
         platform_add_devices(nslu2_devices, ARRAY_SIZE(nslu2_devices));
 
+        pm_power_off = nslu2_power_off;
+
+        if (request_irq(gpio_to_irq(NSLU2_RB_GPIO), &nslu2_reset_handler,
+                IRQF_DISABLED | IRQF_TRIGGER_LOW,
+                "NSLU2 reset button", NULL) < 0) {
+
+                printk(KERN_DEBUG "Reset Button IRQ %d not available\n",
+                        gpio_to_irq(NSLU2_RB_GPIO));
+        }
+
+        if (request_irq(gpio_to_irq(NSLU2_PB_GPIO), &nslu2_power_handler,
+                IRQF_DISABLED | IRQF_TRIGGER_HIGH,
+                "NSLU2 power button", NULL) < 0) {
+
+                printk(KERN_DEBUG "Power Button IRQ %d not available\n",
+                        gpio_to_irq(NSLU2_PB_GPIO));
+        }
 
         /*
          * Map in a portion of the flash and read the MAC address.
diff --git a/include/asm-arm/arch-ixp4xx/nslu2.h b/include/asm-arm/arch-ixp4xx/nslu2.h
index 850fdc5b45da..714bbc65126a 100644
--- a/include/asm-arm/arch-ixp4xx/nslu2.h
+++ b/include/asm-arm/arch-ixp4xx/nslu2.h
@@ -39,34 +39,17 @@
 
 /* Buttons */
 
-#define NSLU2_PB_GPIO           5
+#define NSLU2_PB_GPIO           5       /* power button */
 #define NSLU2_PO_GPIO           8       /* power off */
-#define NSLU2_RB_GPIO           12
-
-#define NSLU2_PB_IRQ            IRQ_IXP4XX_GPIO5
-#define NSLU2_RB_IRQ            IRQ_IXP4XX_GPIO12
-
-#define NSLU2_PB_BM             (1L << NSLU2_PB_GPIO)
-#define NSLU2_PO_BM             (1L << NSLU2_PO_GPIO)
-#define NSLU2_RB_BM             (1L << NSLU2_RB_GPIO)
+#define NSLU2_RB_GPIO           12      /* reset button */
 
 /* Buzzer */
 
 #define NSLU2_GPIO_BUZZ         4
-#define NSLU2_BZ_BM             (1L << NSLU2_GPIO_BUZZ)
 
 /* LEDs */
 
 #define NSLU2_LED_RED_GPIO      0
 #define NSLU2_LED_GRN_GPIO      1
-
-#define NSLU2_LED_RED_BM        (1L << NSLU2_LED_RED_GPIO)
-#define NSLU2_LED_GRN_BM        (1L << NSLU2_LED_GRN_GPIO)
-
 #define NSLU2_LED_DISK1_GPIO    3
 #define NSLU2_LED_DISK2_GPIO    2
-
-#define NSLU2_LED_DISK1_BM      (1L << NSLU2_LED_DISK1_GPIO)
-#define NSLU2_LED_DISK2_BM      (1L << NSLU2_LED_DISK2_GPIO)
-
-