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/***************************************************************************
* __________ __ ___.
* Open \______ \ ____ ____ | | _\_ |__ _______ ___
* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
* \/ \/ \/ \/ \/
* $Id$
*
* Copyright (C) 2011 by Amaury Pouly
*
* 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
****************************************************************************/
#ifndef __PINCTRL_IMX233_H__
#define __PINCTRL_IMX233_H__
#include "cpu.h"
#define HW_PINCTRL_BASE 0x80018000
#define HW_PINCTRL_CTRL (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x0))
#define HW_PINCTRL_MUXSEL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x100 + (i) * 0x10))
#define HW_PINCTRL_DRIVE(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x200 + (i) * 0x10))
#define HW_PINCTRL_PULL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x400 + (i) * 0x10))
#define HW_PINCTRL_DOUT(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x500 + (i) * 0x10))
#define HW_PINCTRL_DIN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x600 + (i) * 0x10))
#define HW_PINCTRL_DOE(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x700 + (i) * 0x10))
#define HW_PINCTRL_PIN2IRQ(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x800 + (i) * 0x10))
#define HW_PINCTRL_IRQEN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x900 + (i) * 0x10))
#define HW_PINCTRL_IRQEN(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0x900 + (i) * 0x10))
#define HW_PINCTRL_IRQLEVEL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xa00 + (i) * 0x10))
#define HW_PINCTRL_IRQPOL(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xb00 + (i) * 0x10))
#define HW_PINCTRL_IRQSTAT(i) (*(volatile uint32_t *)(HW_PINCTRL_BASE + 0xc00 + (i) * 0x10))
#define PINCTRL_FUNCTION_MAIN 0
#define PINCTRL_FUNCTION_ALT1 1
#define PINCTRL_FUNCTION_ALT2 2
#define PINCTRL_FUNCTION_GPIO 3
#define PINCTRL_DRIVE_4mA 0
#define PINCTRL_DRIVE_8mA 1
#define PINCTRL_DRIVE_12mA 2
#define PINCTRL_DRIVE_16mA 3 /* not available on all pins */
static inline void imx233_pinctrl_init(void)
{
__REG_CLR(HW_PINCTRL_CTRL) = __BLOCK_CLKGATE;
__REG_CLR(HW_PINCTRL_CTRL) = __BLOCK_SFTRST;
}
static inline void imx233_set_pin_drive_strength(unsigned bank, unsigned pin, unsigned strength)
{
__REG_CLR(HW_PINCTRL_DRIVE(4 * bank + pin / 8)) = 3 << (4 * (pin % 8));
__REG_SET(HW_PINCTRL_DRIVE(4 * bank + pin / 8)) = strength << (4 * (pin % 8));
}
static inline void imx233_enable_gpio_output(unsigned bank, unsigned pin, bool enable)
{
if(enable)
__REG_SET(HW_PINCTRL_DOE(bank)) = 1 << pin;
else
__REG_CLR(HW_PINCTRL_DOE(bank)) = 1 << pin;
}
static inline void imx233_enable_gpio_output_mask(unsigned bank, uint32_t pin_mask, bool enable)
{
if(enable)
__REG_SET(HW_PINCTRL_DOE(bank)) = pin_mask;
else
__REG_CLR(HW_PINCTRL_DOE(bank)) = pin_mask;
}
static inline void imx233_set_gpio_output(unsigned bank, unsigned pin, bool value)
{
if(value)
__REG_SET(HW_PINCTRL_DOUT(bank)) = 1 << pin;
else
__REG_CLR(HW_PINCTRL_DOUT(bank)) = 1 << pin;
}
static inline void imx233_set_gpio_output_mask(unsigned bank, uint32_t pin_mask, bool value)
{
if(value)
__REG_SET(HW_PINCTRL_DOUT(bank)) = pin_mask;
else
__REG_CLR(HW_PINCTRL_DOUT(bank)) = pin_mask;
}
static inline uint32_t imx233_get_gpio_input_mask(unsigned bank, uint32_t pin_mask)
{
return HW_PINCTRL_DIN(bank) & pin_mask;
}
static inline void imx233_set_pin_function(unsigned bank, unsigned pin, unsigned function)
{
__REG_CLR(HW_PINCTRL_MUXSEL(2 * bank + pin / 16)) = 3 << (2 * (pin % 16));
__REG_SET(HW_PINCTRL_MUXSEL(2 * bank + pin / 16)) = function << (2 * (pin % 16));
}
#endif /* __PINCTRL_IMX233_H__ */
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