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MIPS: RB532: Convert to GPIO lib

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This patch converts the rb532 code to use gpio library
and register its gpio chip.

Signed-off-by: Florian Fainelli <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
This commit is contained in:
Florian Fainelli 2008-08-23 18:54:34 +02:00 • committed by Ralf Baechle
commit d888e25b8d
3 changed files with 176 additions and 129 deletions
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75
include/asm-mips/mach-rc32434/gpio.h
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@ -15,6 +15,16 @@
#include <linux/types.h>
#define gpio_get_value __gpio_get_value
#define gpio_set_value __gpio_set_value
#define gpio_cansleep __gpio_cansleep
#define gpio_to_irq(gpio) IRQ_GPIO(gpio)
#define irq_to_gpio(irq) IRQ_TO_GPIO(irq)
#include <asm-generic/gpio.h>
struct rb532_gpio_reg {
u32 gpiofunc; /* GPIO Function Register
* gpiofunc[x]==0 bit = gpio
@ -62,74 +72,17 @@ struct rb532_gpio_reg {
#define RC32434_PCI_MSU_GPIO (1 << 13)
/* NAND GPIO signals */
#define GPIO_RDY (1 << 0x08)
#define GPIO_WPX (1 << 0x09)
#define GPIO_ALE (1 << 0x0a)
#define GPIO_CLE (1 << 0x0b)
#define GPIO_RDY 8
#define GPIO_WPX 9
#define GPIO_ALE 10
#define GPIO_CLE 11
/* Compact Flash GPIO pin */
#define CF_GPIO_NUM 13
extern void set_434_reg(unsigned reg_offs, unsigned bit, unsigned len, unsigned val);
extern unsigned get_434_reg(unsigned reg_offs);
extern void set_latch_u5(unsigned char or_mask, unsigned char nand_mask);
extern unsigned char get_latch_u5(void);
extern int rb532_gpio_get_value(unsigned gpio);
extern void rb532_gpio_set_value(unsigned gpio, int value);
extern int rb532_gpio_direction_input(unsigned gpio);
extern int rb532_gpio_direction_output(unsigned gpio, int value);
extern void rb532_gpio_set_int_level(unsigned gpio, int value);
extern int rb532_gpio_get_int_level(unsigned gpio);
extern void rb532_gpio_set_int_status(unsigned gpio, int value);
extern int rb532_gpio_get_int_status(unsigned gpio);
/* Wrappers for the arch-neutral GPIO API */
static inline int gpio_request(unsigned gpio, const char *label)
{
/* Not yet implemented */
return 0;
}
static inline void gpio_free(unsigned gpio)
{
/* Not yet implemented */
}
static inline int gpio_direction_input(unsigned gpio)
{
return rb532_gpio_direction_input(gpio);
}
static inline int gpio_direction_output(unsigned gpio, int value)
{
return rb532_gpio_direction_output(gpio, value);
}
static inline int gpio_get_value(unsigned gpio)
{
return rb532_gpio_get_value(gpio);
}
static inline void gpio_set_value(unsigned gpio, int value)
{
rb532_gpio_set_value(gpio, value);
}
static inline int gpio_to_irq(unsigned gpio)
{
return gpio;
}
static inline int irq_to_gpio(unsigned irq)
{
return irq;
}
/* For cansleep */
#include <asm-generic/gpio.h>
#endif /* _RC32434_GPIO_H_ */