[ar71xx] add hardware watchdog driver

[openwrt/svn-archive/archive.git] / target / linux / ar71xx / files / include / asm-mips / mach-ar71xx / ar71xx.h

/*
 *  Atheros AR71xx SoC specific definitions
 *
 *  Copyright (C) 2008 Gabor Juhos <juhosg@openwrt.org>
 *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
 *
 *  Parts of this file are based on Atheros' 2.6.15 BSP
 *
 *  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.
 */

#ifndef __ASM_MACH_AR71XX_H
#define __ASM_MACH_AR71XX_H

#include <linux/types.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/bitops.h>

#ifndef __ASSEMBLER__

#define AR71XX_PCI_MEM_BASE     0x10000000
#define AR71XX_PCI_MEM_SIZE     0x08000000
#define AR71XX_APB_BASE         0x18000000
#define AR71XX_GE0_BASE         0x19000000
#define AR71XX_GE0_SIZE         0x01000000
#define AR71XX_GE1_BASE         0x1a000000
#define AR71XX_GE1_SIZE         0x01000000
#define AR71XX_EHCI_BASE        0x1b000000
#define AR71XX_EHCI_SIZE        0x01000000
#define AR71XX_OHCI_BASE        0x1c000000
#define AR71XX_OHCI_SIZE        0x01000000
#define AR71XX_SPI_BASE         0x1f000000
#define AR71XX_SPI_SIZE         0x01000000

#define AR71XX_DDR_CTRL_BASE    (AR71XX_APB_BASE + 0x00000000)
#define AR71XX_DDR_CTRL_SIZE    0x10000
#define AR71XX_CPU_BASE         (AR71XX_APB_BASE + 0x00010000)
#define AR71XX_UART_BASE        (AR71XX_APB_BASE + 0x00020000)
#define AR71XX_UART_SIZE        0x10000
#define AR71XX_USB_CTRL_BASE    (AR71XX_APB_BASE + 0x00030000)
#define AR71XX_USB_CTRL_SIZE    0x10000
#define AR71XX_GPIO_BASE        (AR71XX_APB_BASE + 0x00040000)
#define AR71XX_GPIO_SIZE        0x10000
#define AR71XX_PLL_BASE         (AR71XX_APB_BASE + 0x00050000)
#define AR71XX_PLL_SIZE         0x10000
#define AR71XX_RESET_BASE       (AR71XX_APB_BASE + 0x00060000)
#define AR71XX_RESET_SIZE       0x10000
#define AR71XX_MII_BASE         (AR71XX_APB_BASE + 0x00070000)
#define AR71XX_MII_SIZE         0x10000
#define AR71XX_SLIC_BASE        (AR71XX_APB_BASE + 0x00090000)
#define AR71XX_SLIC_SIZE        0x10000
#define AR71XX_DMA_BASE         (AR71XX_APB_BASE + 0x000A0000)
#define AR71XX_DMA_SIZE         0x10000
#define AR71XX_STEREO_BASE      (AR71XX_APB_BASE + 0x000B0000)
#define AR71XX_STEREO_SIZE      0x10000

#define AR71XX_CPU_IRQ_BASE     0
#define AR71XX_MISC_IRQ_BASE    8
#define AR71XX_MISC_IRQ_COUNT   8
#define AR71XX_GPIO_IRQ_BASE    16
#define AR71XX_GPIO_IRQ_COUNT   16
#define AR71XX_PCI_IRQ_BASE     32
#define AR71XX_PCI_IRQ_COUNT    4

#define AR71XX_CPU_IRQ_PCI      (AR71XX_CPU_IRQ_BASE + 2)
#define AR71XX_CPU_IRQ_USB      (AR71XX_CPU_IRQ_BASE + 3)
#define AR71XX_CPU_IRQ_GE0      (AR71XX_CPU_IRQ_BASE + 4)
#define AR71XX_CPU_IRQ_GE1      (AR71XX_CPU_IRQ_BASE + 5)
#define AR71XX_CPU_IRQ_MISC     (AR71XX_CPU_IRQ_BASE + 6)
#define AR71XX_CPU_IRQ_TIMER    (AR71XX_CPU_IRQ_BASE + 7)

#define AR71XX_MISC_IRQ_TIMER   (AR71XX_MISC_IRQ_BASE + 0)
#define AR71XX_MISC_IRQ_ERROR   (AR71XX_MISC_IRQ_BASE + 1)
#define AR71XX_MISC_IRQ_GPIO    (AR71XX_MISC_IRQ_BASE + 2)
#define AR71XX_MISC_IRQ_UART    (AR71XX_MISC_IRQ_BASE + 3)
#define AR71XX_MISC_IRQ_WDOG    (AR71XX_MISC_IRQ_BASE + 4)
#define AR71XX_MISC_IRQ_PERFC   (AR71XX_MISC_IRQ_BASE + 5)
#define AR71XX_MISC_IRQ_OHCI    (AR71XX_MISC_IRQ_BASE + 6)
#define AR71XX_MISC_IRQ_DMA     (AR71XX_MISC_IRQ_BASE + 7)

#define AR71XX_GPIO_IRQ(_x)     (AR71XX_GPIO_IRQ_BASE + (_x))

#define AR71XX_PCI_IRQ_DEV0     (AR71XX_PCI_IRQ_BASE + 0)
#define AR71XX_PCI_IRQ_DEV1     (AR71XX_PCI_IRQ_BASE + 1)
#define AR71XX_PCI_IRQ_DEV2     (AR71XX_PCI_IRQ_BASE + 2)
#define AR71XX_PCI_IRQ_CORE     (AR71XX_PCI_IRQ_BASE + 3)

extern u32 ar71xx_ahb_freq;
extern u32 ar71xx_cpu_freq;
extern u32 ar71xx_ddr_freq;

/*
 * PLL block
 */
#define PLL_REG_CPU_PLL_CFG     0x00
#define PLL_REG_SEC_PLL_CFG     0x04
#define PLL_REG_CPU_CLK_CTRL    0x08
#define PLL_REG_ETH_INT0_CLK    0x10
#define PLL_REG_ETH_INT1_CLK    0x14
#define PLL_REG_ETH_EXT_CLK     0x18
#define PLL_REG_PCI_CLK         0x1c

#define AR71XX_PLL_DIV_SHIFT            3
#define AR71XX_PLL_DIV_MASK             0x1f
#define AR71XX_CPU_DIV_SHIFT            16
#define AR71XX_CPU_DIV_MASK             0x3
#define AR71XX_DDR_DIV_SHIFT            18
#define AR71XX_DDR_DIV_MASK             0x3
#define AR71XX_AHB_DIV_SHIFT            20
#define AR71XX_AHB_DIV_MASK             0x7

#define AR91XX_PLL_DIV_SHIFT            0
#define AR91XX_PLL_DIV_MASK             0x3ff
#define AR91XX_DDR_DIV_SHIFT            22
#define AR91XX_DDR_DIV_MASK             0x3
#define AR91XX_AHB_DIV_SHIFT            19
#define AR91XX_AHB_DIV_MASK             0x1

extern void __iomem *ar71xx_pll_base;

static inline void ar71xx_pll_wr(unsigned reg, u32 val)
{
        __raw_writel(val, ar71xx_pll_base + reg);
}

static inline u32 ar71xx_pll_rr(unsigned reg)
{
        return __raw_readl(ar71xx_pll_base + reg);
}

/*
 * USB_CONFIG block
 */
#define USB_CTRL_REG_FLADJ      0x00
#define USB_CTRL_REG_CONFIG     0x04

extern void __iomem *ar71xx_usb_ctrl_base;

static inline void ar71xx_usb_ctrl_wr(unsigned reg, u32 val)
{
        __raw_writel(val, ar71xx_usb_ctrl_base + reg);
}

static inline u32 ar71xx_usb_ctrl_rr(unsigned reg)
{
        return __raw_readl(ar71xx_usb_ctrl_base + reg);
}

extern void ar71xx_add_device_usb(void) __init;

/*
 * GPIO block
 */
#define GPIO_REG_OE             0x00
#define GPIO_REG_IN             0x04
#define GPIO_REG_OUT            0x08
#define GPIO_REG_SET            0x0c
#define GPIO_REG_CLEAR          0x10
#define GPIO_REG_INT_MODE       0x14
#define GPIO_REG_INT_TYPE       0x18
#define GPIO_REG_INT_POLARITY   0x1c
#define GPIO_REG_INT_PENDING    0x20
#define GPIO_REG_INT_ENABLE     0x24
#define GPIO_REG_FUNC           0x28

#define GPIO_FUNC_STEREO_EN     BIT(17)
#define GPIO_FUNC_SLIC_EN       BIT(16)
#define GPIO_FUNC_SPI_CS1_EN    BIT(15)
#define GPIO_FUNC_SPI_CS0_EN    BIT(14)
#define GPIO_FUNC_SPI_EN        BIT(13)
#define GPIO_FUNC_UART_EN       BIT(8)
#define GPIO_FUNC_USB_OC_EN     BIT(4)
#define GPIO_FUNC_USB_CLK_EN    BIT(0)

#define AR71XX_GPIO_COUNT       16

extern void __iomem *ar71xx_gpio_base;

static inline void ar71xx_gpio_wr(unsigned reg, u32 value)
{
        __raw_writel(value, ar71xx_gpio_base + reg);
}

static inline u32 ar71xx_gpio_rr(unsigned reg)
{
        return __raw_readl(ar71xx_gpio_base + reg);
}

extern void ar71xx_gpio_init(void) __init;
extern void ar71xx_gpio_function_enable(u32 mask);
extern void ar71xx_gpio_function_disable(u32 mask);

/*
 * DDR_CTRL block
 */
#define DDR_REG_PCI_WIN0        0x7c
#define DDR_REG_PCI_WIN1        0x80
#define DDR_REG_PCI_WIN2        0x84
#define DDR_REG_PCI_WIN3        0x88
#define DDR_REG_PCI_WIN4        0x8c
#define DDR_REG_PCI_WIN5        0x90
#define DDR_REG_PCI_WIN6        0x94
#define DDR_REG_PCI_WIN7        0x98
#define DDR_REG_FLUSH_GE0       0x9c
#define DDR_REG_FLUSH_GE1       0xa0
#define DDR_REG_FLUSH_USB       0xa4
#define DDR_REG_FLUSH_PCI       0xa8

#define PCI_WIN0_OFFS   0x10000000
#define PCI_WIN1_OFFS   0x11000000
#define PCI_WIN2_OFFS   0x12000000
#define PCI_WIN3_OFFS   0x13000000
#define PCI_WIN4_OFFS   0x14000000
#define PCI_WIN5_OFFS   0x15000000
#define PCI_WIN6_OFFS   0x16000000
#define PCI_WIN7_OFFS   0x07000000

extern void __iomem *ar71xx_ddr_base;

static inline void ar71xx_ddr_wr(unsigned reg, u32 val)
{
        __raw_writel(val, ar71xx_ddr_base + reg);
}

static inline u32 ar71xx_ddr_rr(unsigned reg)
{
        return __raw_readl(ar71xx_ddr_base + reg);
}

extern void ar71xx_ddr_flush(u32 reg);

/*
 * PCI block
 */
#define AR71XX_PCI_CFG_BASE     (AR71XX_PCI_MEM_BASE + PCI_WIN7_OFFS + 0x10000)
#define AR71XX_PCI_CFG_SIZE     0x100

#define PCI_REG_CRP_AD_CBE      0x00
#define PCI_REG_CRP_WRDATA      0x04
#define PCI_REG_CRP_RDDATA      0x08
#define PCI_REG_CFG_AD          0x0c
#define PCI_REG_CFG_CBE         0x10
#define PCI_REG_CFG_WRDATA      0x14
#define PCI_REG_CFG_RDDATA      0x18
#define PCI_REG_PCI_ERR         0x1c
#define PCI_REG_PCI_ERR_ADDR    0x20
#define PCI_REG_AHB_ERR         0x24
#define PCI_REG_AHB_ERR_ADDR    0x28

#define PCI_CRP_CMD_WRITE       0x00010000
#define PCI_CRP_CMD_READ        0x00000000
#define PCI_CFG_CMD_READ        0x0000000a
#define PCI_CFG_CMD_WRITE       0x0000000b

#define PCI_IDSEL_ADL_START     17

/*
 * RESET block
 */
#define RESET_REG_TIMER                 0x00
#define RESET_REG_TIMER_RELOAD          0x04
#define RESET_REG_WDOG_CTRL             0x08
#define RESET_REG_WDOG                  0x0c
#define RESET_REG_MISC_INT_STATUS       0x10
#define RESET_REG_MISC_INT_ENABLE       0x14
#define RESET_REG_PCI_INT_STATUS        0x18
#define RESET_REG_PCI_INT_ENABLE        0x1c
#define RESET_REG_GLOBAL_INT_STATUS     0x20
#define RESET_REG_RESET_MODULE          0x24
#define RESET_REG_PERFC_CTRL            0x2c
#define RESET_REG_PERFC0                0x30
#define RESET_REG_PERFC1                0x34
#define RESET_REG_REV_ID                0x90

#define WDOG_CTRL_LAST_RESET            BIT(31)
#define WDOG_CTRL_ACTION_MASK           3
#define WDOG_CTRL_ACTION_NONE           0       /* no action */
#define WDOG_CTRL_ACTION_GPI            1       /* general purpose interrupt */
#define WDOG_CTRL_ACTION_NMI            2       /* NMI */
#define WDOG_CTRL_ACTION_FCR            3       /* full chip reset */

#define MISC_INT_DMA                    BIT(7)
#define MISC_INT_OHCI                   BIT(6)
#define MISC_INT_PERFC                  BIT(5)
#define MISC_INT_WDOG                   BIT(4)
#define MISC_INT_UART                   BIT(3)
#define MISC_INT_GPIO                   BIT(2)
#define MISC_INT_ERROR                  BIT(1)
#define MISC_INT_TIMER                  BIT(0)

#define PCI_INT_CORE                    BIT(4)
#define PCI_INT_DEV2                    BIT(2)
#define PCI_INT_DEV1                    BIT(1)
#define PCI_INT_DEV0                    BIT(0)

#define RESET_MODULE_EXTERNAL           BIT(28)
#define RESET_MODULE_FULL_CHIP          BIT(24)
#define RESET_MODULE_CPU_NMI            BIT(21)
#define RESET_MODULE_CPU_COLD           BIT(20)
#define RESET_MODULE_DMA                BIT(19)
#define RESET_MODULE_SLIC               BIT(18)
#define RESET_MODULE_STEREO             BIT(17)
#define RESET_MODULE_DDR                BIT(16)
#define RESET_MODULE_GE1_MAC            BIT(13)
#define RESET_MODULE_GE1_PHY            BIT(12)
#define RESET_MODULE_USBSUS_OVERRIDE    BIT(10)
#define RESET_MODULE_GE0_MAC            BIT(9)
#define RESET_MODULE_GE0_PHY            BIT(8)
#define RESET_MODULE_USB_OHCI_DLL       BIT(6)
#define RESET_MODULE_USB_HOST           BIT(5)
#define RESET_MODULE_USB_PHY            BIT(4)
#define RESET_MODULE_PCI_BUS            BIT(1)
#define RESET_MODULE_PCI_CORE           BIT(0)

#define REV_ID_MASK             0xff
#define REV_ID_CHIP_MASK        0xf3
#define REV_ID_CHIP_AR7130      0xa0
#define REV_ID_CHIP_AR7141      0xa1
#define REV_ID_CHIP_AR7161      0xa2
#define REV_ID_CHIP_AR9130      0xb0

#define REV_ID_REVISION_MASK    0x3
#define REV_ID_REVISION_SHIFT   2

extern void __iomem *ar71xx_reset_base;

static inline void ar71xx_reset_wr(unsigned reg, u32 val)
{
        __raw_writel(val, ar71xx_reset_base + reg);
}

static inline u32 ar71xx_reset_rr(unsigned reg)
{
        return __raw_readl(ar71xx_reset_base + reg);
}

extern void ar71xx_device_stop(u32 mask);
extern void ar71xx_device_start(u32 mask);

/*
 * SPI block
 */
#define SPI_REG_FS              0x00    /* Function Select */
#define SPI_REG_CTRL            0x04    /* SPI Control */
#define SPI_REG_IOC             0x08    /* SPI I/O Control */
#define SPI_REG_RDS             0x0c    /* Read Data Shift */

#define SPI_FS_GPIO             BIT(0)  /* Enable GPIO mode */

#define SPI_CTRL_RD             BIT(6)  /* Remap Disable */
#define SPI_CTRL_DIV_MASK       0x3f

#define SPI_IOC_DO              BIT(0)  /* Data Out pin */
#define SPI_IOC_CLK             BIT(8)  /* CLK pin */
#define SPI_IOC_CS(n)           BIT(16 + (n))
#define SPI_IOC_CS0             SPI_IOC_CS(0)
#define SPI_IOC_CS1             SPI_IOC_CS(1)
#define SPI_IOC_CS2             SPI_IOC_CS(2)
#define SPI_IOC_CS_ALL          (SPI_IOC_CS0 | SPI_IOC_CS1 | SPI_IOC_CS2)

/*
 * MII_CTRL block
 */
#define MII_REG_MII0_CTRL       0x00
#define MII_REG_MII1_CTRL       0x04

#define MII0_CTRL_IF_GMII       0
#define MII0_CTRL_IF_MII        1
#define MII0_CTRL_IF_RGMII      2
#define MII0_CTRL_IF_RMII       3

#define MII1_CTRL_IF_RGMII      0
#define MII1_CTRL_IF_RMII       1

#endif /* __ASSEMBLER__ */

#endif /* __ASM_MACH_AR71XX_H */