[ARM] 3037/1: AAED-2000 - Add defines for GPIO registers on external …

…port.

Patch from Bellido Nicolas

The AAED-2000 board has GPIO pins on an external port.
This patch adds the defines, and do the necessary mapping.

Signed-off-by: Nicolas Bellido <ml@acolin.be>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/mach-aaec2000/aaed2000.c

@@ -27,16 +27,23 @@
 #include <asm/mach/map.h>
 #include <asm/mach/irq.h>
 
+#include <asm/arch/aaed2000.h>
+
 #include "core.h"
 
 static void __init aaed2000_init_irq(void)
 {
 	aaec2000_init_irq();
 }
 
+static struct map_desc aaed2000_io_desc[] __initdata = {
+  { EXT_GPIO_VBASE, EXT_GPIO_PBASE, EXT_GPIO_LENGTH, MT_DEVICE }, /* Ext GPIO */
+};
+
 static void __init aaed2000_map_io(void)
 {
 	aaec2000_map_io();
+	iotable_init(aaed2000_io_desc, ARRAY_SIZE(aaed2000_io_desc));
 }
 
 MACHINE_START(AAED2000, "Agilent AAED-2000 Development Platform")

include/asm-arm/arch-aaec2000/aaed2000.h

@@ -0,0 +1,40 @@
+/*
+ *  linux/include/asm-arm/arch-aaec2000/aaed2000.h
+ *
+ *  AAED-2000 specific bits definition
+ *
+ *  Copyright (c) 2005 Nicolas Bellido Y Ortega
+ *
+ *  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.
+ */
+
+#ifndef __ASM_ARCH_AAED2000_H
+#define __ASM_ARCH_AAED2000_H
+
+/* External GPIOs. */
+
+#define EXT_GPIO_PBASE	AAEC_CS3
+#define EXT_GPIO_VBASE	0xf8100000
+#define EXT_GPIO_LENGTH	0x00001000
+
+#define __ext_gpio_p2v(x)	((x) - EXT_GPIO_PBASE + EXT_GPIO_VBASE)
+#define __ext_gpio_v2p(x)	((x) + EXT_GPIO_PBASE - EXT_GPIO_VBASE)
+
+#define __EXT_GPIO_REG(x)	(*((volatile u32 *)__ext_gpio_p2v(x)))
+#define __EXT_GPIO_PREG(x)	(__ext_gpio_v2p((u32)&(x)))
+
+#define AAED_EXT_GPIO	__EXT_GPIO_REG(EXT_GPIO_PBASE)
+
+#define AAED_EGPIO_KBD_SCAN	0x00003fff /* Keyboard scan data */
+#define AAED_EGPIO_PWR_INT	0x00008fff /* Smart battery charger interrupt */
+#define AAED_EGPIO_SWITCHED	0x000f0000 /* DIP Switches */
+#define AAED_EGPIO_USB_VBUS	0x00400000 /* USB Vbus sense */
+#define AAED_EGPIO_LCD_PWR_EN	0x02000000 /* LCD and backlight PWR enable */
+#define AAED_EGPIO_nLED0	0x20000000 /* LED 0 */
+#define AAED_EGPIO_nLED1	0x20000000 /* LED 1 */
+#define AAED_EGPIO_nLED2	0x20000000 /* LED 2 */
+
+
+#endif /* __ARM_ARCH_AAED2000_H */