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[ARM] 3827/1: iop3xx: add common gpio module

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Implement the gpio_line_{config,get,set} API for iop3xx.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Lennert Buytenhek
2006-09-18 23:23:07 +01:00
committed by Russell King
parent 610300e8f4
commit 72edd84a6b
6 changed files with 81 additions and 8 deletions
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include/asm-arm/hardware/iop3xx.h
+21
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@@ -15,6 +15,22 @@
#ifndef __IOP3XX_H
#define __IOP3XX_H
/*
* IOP3XX GPIO handling
*/
#define GPIO_IN 0
#define GPIO_OUT 1
#define GPIO_LOW 0
#define GPIO_HIGH 1
#define IOP3XX_GPIO_LINE(x) (x)
#ifndef __ASSEMBLY__
extern void gpio_line_config(int line, int direction);
extern int gpio_line_get(int line);
extern void gpio_line_set(int line, int value);
#endif
/*
* IOP3XX processor registers
*/
@@ -81,6 +97,11 @@
#define IOP3XX_PCIXSR (volatile u32 *)IOP3XX_REG_ADDR(0x01e4)
#define IOP3XX_PCIIRSR (volatile u32 *)IOP3XX_REG_ADDR(0x01ec)
/* General Purpose I/O */
#define IOP3XX_GPOE (volatile u32 *)IOP3XX_GPIO_REG(0x0004)
#define IOP3XX_GPID (volatile u32 *)IOP3XX_GPIO_REG(0x0008)
#define IOP3XX_GPOD (volatile u32 *)IOP3XX_GPIO_REG(0x000c)
/* Timers */
#define IOP3XX_TU_TMR0 (volatile u32 *)IOP3XX_TIMER_REG(0x0000)
#define IOP3XX_TU_TMR1 (volatile u32 *)IOP3XX_TIMER_REG(0x0004)