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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2013 Alexandru Gagniuc <mr.nuke.me@gmail.com>
*
* 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; version 2 of the License or (at your option)
* any later version.
*
* 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.
*
* Definitions for GPIO and pin multiplexing on Allwinner CPUs
*/
#ifndef __CPU_ALLWINNER_A10_PINMUX_H
#define __CPU_ALLWINNER_A10_PINMUX_H
#include <types.h>
#define GPIO_BASE 0x01C20800
#define GPA 0
#define GPB 1
#define GPC 2
#define GPD 3
#define GPE 4
#define GPF 5
#define GPG 6
#define GPH 7
#define GPI 8
#define GPS 9
/* GPIO pad functions valid for all pins */
#define GPIO_PIN_FUNC_INPUT 0
#define GPIO_PIN_FUNC_OUTPUT 1
struct a10_gpio_port {
u32 cfg[4];
u32 dat;
u32 drv[2];
u32 pul[2];
} __attribute__ ((packed));
struct a10_gpio {
struct a10_gpio_port port[10];
u8 reserved_0x168[0x98];
/* Offset 0x200 */
u32 int_cfg[4];
u32 int_ctl;
u32 int_sta;
u8 reserved_0x21C[4];
u32 int_deb;
u32 sdr_pad_drv;
u32 sdr_pad_pul;
} __attribute__ ((packed));
/* gpio.c */
void gpio_set(u8 port, u8 pin);
void gpio_clear(u8 port, u8 pin);
int gpio_get(u8 port, u8 pin);
void gpio_write(u8 port, u32 val);
u32 gpio_read(u8 port);
/* pinmux.c */
void gpio_set_pin_func(u8 port, u8 pin, u8 pad_func);
void gpio_set_multipin_func(u8 port, u32 pin_mask, u8 pad_func);
#endif /* __CPU_ALLWINNER_A10_PINMUX_H */
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