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Commit cefe658b authored by Michael Hennerich's avatar Michael Hennerich Committed by Bryan Wu
Browse files

Blackfin arch: add BF54x missing GPIO access functions 



Signed-off-by: default avatarMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: default avatarBryan Wu <bryan.wu@analog.com>
parent e3f23000

arch/blackfin/mach-bf548/gpio.c

+17 −0
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ inline int check_gpio(unsigned short gpio) 
{

	if (gpio == GPIO_PB15 || gpio == GPIO_PC14 || gpio == GPIO_PC15 \

			|| gpio == GPIO_PH14 || gpio == GPIO_PH15 \

			|| gpio == GPIO_PJ14 || gpio == GPIO_PJ15 \

			|| gpio > MAX_BLACKFIN_GPIOS)

		return -EINVAL;

	return 0;
@@ -173,3 +174,19 @@ void gpio_direction_output(unsigned short gpio) 
	local_irq_restore(flags);

}

EXPORT_SYMBOL(gpio_direction_output);



void gpio_set_value(unsigned short gpio, unsigned short arg)

{

	if (arg)

		gpio_array[gpio_bank(gpio)]->port_set = gpio_bit(gpio);

	else

		gpio_array[gpio_bank(gpio)]->port_clear = gpio_bit(gpio);



}

EXPORT_SYMBOL(gpio_set_value);



unsigned short gpio_get_value(unsigned short gpio)

{

	return (1 & (gpio_array[gpio_bank(gpio)]->port_data >> gpio_sub_n(gpio)));

}

EXPORT_SYMBOL(gpio_get_value);

include/asm-blackfin/gpio.h

+3 −1
Original line number Diff line number Diff line
@@ -234,6 +234,7 @@ 
* MODIFICATION HISTORY :

**************************************************************/



#ifndef BF548_FAMILY

void set_gpio_dir(unsigned short, unsigned short);

void set_gpio_inen(unsigned short, unsigned short);

void set_gpio_polar(unsigned short, unsigned short);
@@ -268,7 +269,6 @@ unsigned short get_gpiop_maska(unsigned short); 
unsigned short get_gpiop_maskb(unsigned short);

unsigned short get_gpiop_data(unsigned short);



#ifndef BF548_FAMILY

struct gpio_port_t {

	unsigned short data;

	unsigned short dummy1;
@@ -363,8 +363,10 @@ void gpio_free(unsigned short); 
void gpio_set_value(unsigned short gpio, unsigned short arg);

unsigned short gpio_get_value(unsigned short gpio);



#ifndef BF548_FAMILY

#define gpio_get_value(gpio) 		get_gpio_data(gpio)

#define gpio_set_value(gpio, value)	set_gpio_data(gpio, value)

#endif



void gpio_direction_input(unsigned short gpio);

void gpio_direction_output(unsigned short gpio);

include/asm-blackfin/mach-bf548/gpio.h

+2 −2
Original line number Diff line number Diff line
@@ -187,8 +187,8 @@ 
#define GPIO_PJ11	155

#define GPIO_PJ12	156

#define GPIO_PJ13	157

#define GPIO_PJ14	158

#define GPIO_PJ15	159

#define GPIO_PJ14	158	/* N/A */

#define GPIO_PJ15	159	/* N/A */



#define MAX_BLACKFIN_GPIOS 160