/*
 * This program is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 as published
 * by the Free Software Foundation.
 *
 * Parts of this file are based on Ralink's 2.6.21 BSP
 *
 * Copyright (C) 2008-2011 Gabor Juhos <juhosg@openwrt.org>
 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
 * Copyright (C) 2013 John Crispin <blogic@openwrt.org>
 */

#ifndef _RT305X_REGS_H_
#define _RT305X_REGS_H_

enum rt305x_soc_type {
	RT305X_SOC_UNKNOWN = 0,
	RT305X_SOC_RT3050,
	RT305X_SOC_RT3052,
	RT305X_SOC_RT3350,
	RT305X_SOC_RT3352,
	RT305X_SOC_RT5350,
};

extern enum rt305x_soc_type rt305x_soc;

static inline int soc_is_rt3050(void)
{
	return rt305x_soc == RT305X_SOC_RT3050;
}

static inline int soc_is_rt3052(void)
{
	return rt305x_soc == RT305X_SOC_RT3052;
}

static inline int soc_is_rt305x(void)
{
	return soc_is_rt3050() || soc_is_rt3052();
}

static inline int soc_is_rt3350(void)
{
	return rt305x_soc == RT305X_SOC_RT3350;
}

static inline int soc_is_rt3352(void)
{
	return rt305x_soc == RT305X_SOC_RT3352;
}

static inline int soc_is_rt5350(void)
{
	return rt305x_soc == RT305X_SOC_RT5350;
}

#define RT305X_SYSC_BASE		0x10000000

#define SYSC_REG_CHIP_NAME0		0x00
#define SYSC_REG_CHIP_NAME1		0x04
#define SYSC_REG_CHIP_ID		0x0c
#define SYSC_REG_SYSTEM_CONFIG		0x10

#define RT3052_CHIP_NAME0		0x30335452
#define RT3052_CHIP_NAME1		0x20203235

#define RT3350_CHIP_NAME0		0x33335452
#define RT3350_CHIP_NAME1		0x20203035

#define RT3352_CHIP_NAME0		0x33335452
#define RT3352_CHIP_NAME1		0x20203235

#define RT5350_CHIP_NAME0		0x33355452
#define RT5350_CHIP_NAME1		0x20203035

#define CHIP_ID_ID_MASK			0xff
#define CHIP_ID_ID_SHIFT		8
#define CHIP_ID_REV_MASK		0xff

#define RT305X_SYSCFG_CPUCLK_SHIFT		18
#define RT305X_SYSCFG_CPUCLK_MASK		0x1
#define RT305X_SYSCFG_CPUCLK_LOW		0x0
#define RT305X_SYSCFG_CPUCLK_HIGH		0x1

#define RT305X_SYSCFG_SRAM_CS0_MODE_SHIFT	2
#define RT305X_SYSCFG_CPUCLK_MASK		0x1
#define RT305X_SYSCFG_SRAM_CS0_MODE_WDT		0x1

#define RT3352_SYSCFG0_CPUCLK_SHIFT	8
#define RT3352_SYSCFG0_CPUCLK_MASK	0x1
#define RT3352_SYSCFG0_CPUCLK_LOW	0x0
#define RT3352_SYSCFG0_CPUCLK_HIGH	0x1

#define RT5350_SYSCFG0_CPUCLK_SHIFT	8
#define RT5350_SYSCFG0_CPUCLK_MASK	0x3
#define RT5350_SYSCFG0_CPUCLK_360	0x0
#define RT5350_SYSCFG0_CPUCLK_320	0x2
#define RT5350_SYSCFG0_CPUCLK_300	0x3

/* multi function gpio pins */
#define RT305X_GPIO_I2C_SD		1
#define RT305X_GPIO_I2C_SCLK		2
#define RT305X_GPIO_SPI_EN		3
#define RT305X_GPIO_SPI_CLK		4
/* GPIO 7-14 is shared between UART0, PCM  and I2S interfaces */
#define RT305X_GPIO_7			7
#define RT305X_GPIO_10			10
#define RT305X_GPIO_14			14
#define RT305X_GPIO_UART1_TXD		15
#define RT305X_GPIO_UART1_RXD		16
#define RT305X_GPIO_JTAG_TDO		17
#define RT305X_GPIO_JTAG_TDI		18
#define RT305X_GPIO_MDIO_MDC		22
#define RT305X_GPIO_MDIO_MDIO		23
#define RT305X_GPIO_SDRAM_MD16		24
#define RT305X_GPIO_SDRAM_MD31		39
#define RT305X_GPIO_GE0_TXD0		40
#define RT305X_GPIO_GE0_RXCLK		51

#define RT305X_GPIO_MODE_I2C		BIT(0)
#define RT305X_GPIO_MODE_SPI		BIT(1)
#define RT305X_GPIO_MODE_UART0_SHIFT	2
#define RT305X_GPIO_MODE_UART0_MASK	0x7
#define RT305X_GPIO_MODE_UART0(x)	((x) << RT305X_GPIO_MODE_UART0_SHIFT)
#define RT305X_GPIO_MODE_UARTF		0x0
#define RT305X_GPIO_MODE_PCM_UARTF	0x1
#define RT305X_GPIO_MODE_PCM_I2S	0x2
#define RT305X_GPIO_MODE_I2S_UARTF	0x3
#define RT305X_GPIO_MODE_PCM_GPIO	0x4
#define RT305X_GPIO_MODE_GPIO_UARTF	0x5
#define RT305X_GPIO_MODE_GPIO_I2S	0x6
#define RT305X_GPIO_MODE_GPIO		0x7
#define RT305X_GPIO_MODE_UART1		BIT(5)
#define RT305X_GPIO_MODE_JTAG		BIT(6)
#define RT305X_GPIO_MODE_MDIO		BIT(7)
#define RT305X_GPIO_MODE_SDRAM		BIT(8)
#define RT305X_GPIO_MODE_RGMII		BIT(9)

#endif