u-boot/arch/arm/include/asm/arch-davinci/gpio.h
Laurence Withers f517afd5df DA8xx: add generic GPIO driver
Add a generic GPIO driver for the DaVinci DA8xx processors. It is turned
on by defining CONFIG_DA8XX_GPIO and fulfills the generic GPIO interface
specified in <asm/gpio.h> . The driver has support for both manipulating
GPIO pins as well as automatically configuring the pin multiplexor
registers to set the pin function to GPIO.

Signed-off-by: Laurence Withers <lwithers@guralp.com>
Signed-off-by: Sandeep Paulraj <s-paulraj@ti.com>
2011-08-03 12:49:19 +02:00

74 lines
2.2 KiB
C

/*
* Copyright (C) 2009 Texas Instruments Incorporated
*
* See file CREDITS for list of people who contributed to this
* project.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
#ifndef _GPIO_DEFS_H_
#define _GPIO_DEFS_H_
#ifndef CONFIG_SOC_DA8XX
#define DAVINCI_GPIO_BINTEN 0x01C67008
#define DAVINCI_GPIO_BANK01 0x01C67010
#define DAVINCI_GPIO_BANK23 0x01C67038
#define DAVINCI_GPIO_BANK45 0x01C67060
#define DAVINCI_GPIO_BANK67 0x01C67088
#else /* CONFIG_SOC_DA8XX */
#define DAVINCI_GPIO_BINTEN 0x01E26008
#define DAVINCI_GPIO_BANK01 0x01E26010
#define DAVINCI_GPIO_BANK23 0x01E26038
#define DAVINCI_GPIO_BANK45 0x01E26060
#define DAVINCI_GPIO_BANK67 0x01E26088
#endif /* CONFIG_SOC_DA8XX */
struct davinci_gpio {
unsigned int dir;
unsigned int out_data;
unsigned int set_data;
unsigned int clr_data;
unsigned int in_data;
unsigned int set_rising;
unsigned int clr_rising;
unsigned int set_falling;
unsigned int clr_falling;
unsigned int intstat;
};
struct davinci_gpio_bank {
int num_gpio;
unsigned int irq_num;
unsigned int irq_mask;
unsigned long *in_use;
unsigned long base;
};
#define davinci_gpio_bank01 ((struct davinci_gpio *)DAVINCI_GPIO_BANK01)
#define davinci_gpio_bank23 ((struct davinci_gpio *)DAVINCI_GPIO_BANK23)
#define davinci_gpio_bank45 ((struct davinci_gpio *)DAVINCI_GPIO_BANK45)
#define davinci_gpio_bank67 ((struct davinci_gpio *)DAVINCI_GPIO_BANK67)
#define gpio_status() gpio_info()
#define GPIO_NAME_SIZE 20
#define MAX_NUM_GPIOS 144
#define GPIO_BANK(gp) (davinci_gpio_bank01 + ((gp) >> 5))
#define GPIO_BIT(gp) ((gp) & 0x1F)
void gpio_info(void);
#endif