--- arch/arm/mach-mx27/gpio.c | 1196 +++++++++++++++++++++++++++++++++++ arch/arm/mach-mx27/gpio_mux.c | 293 ++++++++ arch/arm/mach-mx27/gpio_mux.h | 68 + include/asm-arm/arch-mxc/gpio.h | 165 ++++ include/asm-arm/arch-mxc/mx27_pins.h | 220 ++++++ 5 files changed, 1942 insertions(+) Index: include/asm-arm/arch-mxc/mx27_pins.h =================================================================== --- /dev/null +++ include/asm-arm/arch-mxc/mx27_pins.h @@ -0,0 +1,220 @@ +/* + * linux/arch/arm/mach-mx27/gpio.c + * + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2007 Robert Schwebel , Pengutronix + * + * 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_ARCH_MXC_MX27_PINS_H__ +#define __ASM_ARCH_MXC_MX27_PINS_H__ + +/*! + * @file arch-mxc/mx27_pins.h + * + * @brief MX27 I/O Pin List + * + * @ingroup GPIO_MX27 + */ + +#ifndef __ASSEMBLY__ + +/*! + * Starting bit position within each entry of \b iomux_pins to represent the + * gpio port number (0-based) for that pin. For non-gpio pins, the bits will + * be all 1's for error checking in the functions. (gpio port 7 is invalid) + */ +#define MUX_IO_P 29 + +/*! + * Starting bit position within each entry of \b iomux_pins to represent the + * gpio offset bit (0-based) for that pin. For non-gpio pins, the bits will + * be all 0's since they are don't cares. So for port 2 pin 21, bit 31-24 + * will be (1 << MUX_IO_P) | (21 << MUX_IO_I). + */ +#define MUX_IO_I 24 + +#define _MX27_BUILD_PIN(gp,gi) (((gp) << MUX_IO_P) | ((gi) << MUX_IO_I)) + +typedef enum iomux_pins { + MX27_PIN_USBH2_CLK = _MX27_BUILD_PIN(0, 0), + MX27_PIN_USBH2_DIR = _MX27_BUILD_PIN(0, 1), + MX27_PIN_USBH2_DATA7 = _MX27_BUILD_PIN(0, 2), + MX27_PIN_USBH2_NXT = _MX27_BUILD_PIN(0, 3), + MX27_PIN_USBH2_STP = _MX27_BUILD_PIN(0, 4), + MX27_PIN_LSCLK = _MX27_BUILD_PIN(0, 5), + MX27_PIN_LD0 = _MX27_BUILD_PIN(0, 6), + MX27_PIN_LD1 = _MX27_BUILD_PIN(0, 7), + MX27_PIN_LD2 = _MX27_BUILD_PIN(0, 8), + MX27_PIN_LD3 = _MX27_BUILD_PIN(0, 9), + MX27_PIN_LD4 = _MX27_BUILD_PIN(0, 10), + MX27_PIN_LD5 = _MX27_BUILD_PIN(0, 11), + MX27_PIN_LD6 = _MX27_BUILD_PIN(0, 12), + MX27_PIN_LD7 = _MX27_BUILD_PIN(0, 13), + MX27_PIN_LD8 = _MX27_BUILD_PIN(0, 14), + MX27_PIN_LD9 = _MX27_BUILD_PIN(0, 15), + MX27_PIN_LD10 = _MX27_BUILD_PIN(0, 16), + MX27_PIN_LD11 = _MX27_BUILD_PIN(0, 17), + MX27_PIN_LD12 = _MX27_BUILD_PIN(0, 18), + MX27_PIN_LD13 = _MX27_BUILD_PIN(0, 19), + MX27_PIN_LD14 = _MX27_BUILD_PIN(0, 20), + MX27_PIN_LD15 = _MX27_BUILD_PIN(0, 21), + MX27_PIN_LD16 = _MX27_BUILD_PIN(0, 22), + MX27_PIN_LD17 = _MX27_BUILD_PIN(0, 23), + MX27_PIN_REV = _MX27_BUILD_PIN(0, 24), + MX27_PIN_CLS = _MX27_BUILD_PIN(0, 25), + MX27_PIN_PS = _MX27_BUILD_PIN(0, 26), + MX27_PIN_SPL_SPR = _MX27_BUILD_PIN(0, 27), + MX27_PIN_HSYNC = _MX27_BUILD_PIN(0, 28), + MX27_PIN_VSYNC = _MX27_BUILD_PIN(0, 29), + MX27_PIN_CONTRAST = _MX27_BUILD_PIN(0, 30), + MX27_PIN_OE_ACD = _MX27_BUILD_PIN(0, 31), + + MX27_PIN_SD2_D0 = _MX27_BUILD_PIN(1, 4), + MX27_PIN_SD2_D1 = _MX27_BUILD_PIN(1, 5), + MX27_PIN_SD2_D2 = _MX27_BUILD_PIN(1, 6), + MX27_PIN_SD2_D3 = _MX27_BUILD_PIN(1, 7), + MX27_PIN_SD2_CMD = _MX27_BUILD_PIN(1, 8), + MX27_PIN_SD2_CLK = _MX27_BUILD_PIN(1, 9), + MX27_PIN_CSI_D0 = _MX27_BUILD_PIN(1, 10), + MX27_PIN_CSI_D1 = _MX27_BUILD_PIN(1, 11), + MX27_PIN_CSI_D2 = _MX27_BUILD_PIN(1, 12), + MX27_PIN_CSI_D3 = _MX27_BUILD_PIN(1, 13), + MX27_PIN_CSI_D4 = _MX27_BUILD_PIN(1, 14), + MX27_PIN_CSI_MCLK = _MX27_BUILD_PIN(1, 15), + MX27_PIN_CSI_PIXCLK = _MX27_BUILD_PIN(1, 16), + MX27_PIN_CSI_D5 = _MX27_BUILD_PIN(1, 17), + MX27_PIN_CSI_D6 = _MX27_BUILD_PIN(1, 18), + MX27_PIN_CSI_D7 = _MX27_BUILD_PIN(1, 19), + MX27_PIN_CSI_VSYNC = _MX27_BUILD_PIN(1, 20), + MX27_PIN_CSI_HSYNC = _MX27_BUILD_PIN(1, 21), + MX27_PIN_USBH1_SUSP = _MX27_BUILD_PIN(1, 22), + MX27_PIN_USB_PWR = _MX27_BUILD_PIN(1, 23), + MX27_PIN_USB_OC_B = _MX27_BUILD_PIN(1, 24), + MX27_PIN_USBH1_RCV = _MX27_BUILD_PIN(1, 25), + MX27_PIN_USBH1_FS = _MX27_BUILD_PIN(1, 26), + MX27_PIN_USBH1_OE_B = _MX27_BUILD_PIN(1, 27), + MX27_PIN_USBH1_TXDM = _MX27_BUILD_PIN(1, 28), + MX27_PIN_USBH1_TXDP = _MX27_BUILD_PIN(1, 29), + MX27_PIN_USBH1_RXDM = _MX27_BUILD_PIN(1, 30), + MX27_PIN_USBH1_RXDP = _MX27_BUILD_PIN(1, 31), + + MX27_PIN_I2C2_SDA = _MX27_BUILD_PIN(2, 5), + MX27_PIN_I2C2_SCL = _MX27_BUILD_PIN(2, 6), + MX27_PIN_USBOTG_DATA5 = _MX27_BUILD_PIN(2, 7), + MX27_PIN_USBOTG_DATA6 = _MX27_BUILD_PIN(2, 8), + MX27_PIN_USBOTG_DATA0 = _MX27_BUILD_PIN(2, 9), + MX27_PIN_USBOTG_DATA2 = _MX27_BUILD_PIN(2, 10), + MX27_PIN_USBOTG_DATA1 = _MX27_BUILD_PIN(2, 11), + MX27_PIN_USBOTG_DATA4 = _MX27_BUILD_PIN(2, 12), + MX27_PIN_USBOTG_DATA3 = _MX27_BUILD_PIN(2, 13), + MX27_PIN_TOUT = _MX27_BUILD_PIN(2, 14), + MX27_PIN_TIN = _MX27_BUILD_PIN(2, 15), + MX27_PIN_SSI4_FS = _MX27_BUILD_PIN(2, 16), + MX27_PIN_SSI4_RXDAT = _MX27_BUILD_PIN(2, 17), + MX27_PIN_SSI4_TXDAT = _MX27_BUILD_PIN(2, 18), + MX27_PIN_SSI4_CLK = _MX27_BUILD_PIN(2, 19), + MX27_PIN_SSI1_FS = _MX27_BUILD_PIN(2, 20), + MX27_PIN_SSI1_RXDAT = _MX27_BUILD_PIN(2, 21), + MX27_PIN_SSI1_TXDAT = _MX27_BUILD_PIN(2, 22), + MX27_PIN_SSI1_CLK = _MX27_BUILD_PIN(2, 23), + MX27_PIN_SSI2_FS = _MX27_BUILD_PIN(2, 24), + MX27_PIN_SSI2_RXDAT = _MX27_BUILD_PIN(2, 25), + MX27_PIN_SSI2_TXDAT = _MX27_BUILD_PIN(2, 26), + MX27_PIN_SSI2_CLK = _MX27_BUILD_PIN(2, 27), + MX27_PIN_SSI3_FS = _MX27_BUILD_PIN(2, 28), + MX27_PIN_SSI3_RXDAT = _MX27_BUILD_PIN(2, 29), + MX27_PIN_SSI3_TXDAT = _MX27_BUILD_PIN(2, 30), + MX27_PIN_SSI3_CLK = _MX27_BUILD_PIN(2, 31), + + MX27_PIN_SD3_CMD = _MX27_BUILD_PIN(3, 0), + MX27_PIN_SD3_CLK = _MX27_BUILD_PIN(3, 1), + MX27_PIN_ATA_DATA0 = _MX27_BUILD_PIN(3, 2), + MX27_PIN_ATA_DATA1 = _MX27_BUILD_PIN(3, 3), + MX27_PIN_ATA_DATA2 = _MX27_BUILD_PIN(3, 4), + MX27_PIN_ATA_DATA3 = _MX27_BUILD_PIN(3, 5), + MX27_PIN_ATA_DATA4 = _MX27_BUILD_PIN(3, 6), + MX27_PIN_ATA_DATA5 = _MX27_BUILD_PIN(3, 7), + MX27_PIN_ATA_DATA6 = _MX27_BUILD_PIN(3, 8), + MX27_PIN_ATA_DATA7 = _MX27_BUILD_PIN(3, 9), + MX27_PIN_ATA_DATA8 = _MX27_BUILD_PIN(3, 10), + MX27_PIN_ATA_DATA9 = _MX27_BUILD_PIN(3, 11), + MX27_PIN_ATA_DATA10 = _MX27_BUILD_PIN(3, 12), + MX27_PIN_ATA_DATA11 = _MX27_BUILD_PIN(3, 13), + MX27_PIN_ATA_DATA12 = _MX27_BUILD_PIN(3, 14), + MX27_PIN_ATA_DATA13 = _MX27_BUILD_PIN(3, 15), + MX27_PIN_ATA_DATA14 = _MX27_BUILD_PIN(3, 16), + MX27_PIN_I2C_DATA = _MX27_BUILD_PIN(3, 17), + MX27_PIN_I2C_CLK = _MX27_BUILD_PIN(3, 18), + MX27_PIN_CSPI2_SS2 = _MX27_BUILD_PIN(3, 19), + MX27_PIN_CSPI2_SS1 = _MX27_BUILD_PIN(3, 20), + MX27_PIN_CSPI2_SS0 = _MX27_BUILD_PIN(3, 21), + MX27_PIN_CSPI2_SCLK = _MX27_BUILD_PIN(3, 22), + MX27_PIN_CSPI2_MISO = _MX27_BUILD_PIN(3, 23), + MX27_PIN_CSPI2_MOSI = _MX27_BUILD_PIN(3, 24), + MX27_PIN_CSPI1_RDY = _MX27_BUILD_PIN(3, 25), + MX27_PIN_CSPI1_SS2 = _MX27_BUILD_PIN(3, 26), + MX27_PIN_CSPI1_SS1 = _MX27_BUILD_PIN(3, 27), + MX27_PIN_CSPI1_SS0 = _MX27_BUILD_PIN(3, 28), + MX27_PIN_CSPI1_SCLK = _MX27_BUILD_PIN(3, 29), + MX27_PIN_CSPI1_MISO = _MX27_BUILD_PIN(3, 30), + MX27_PIN_CSPI1_MOSI = _MX27_BUILD_PIN(3, 31), + + MX27_PIN_USBOTG_NXT = _MX27_BUILD_PIN(4, 0), + MX27_PIN_USBOTG_STP = _MX27_BUILD_PIN(4, 1), + MX27_PIN_USBOTG_DIR = _MX27_BUILD_PIN(4, 2), + MX27_PIN_UART2_CTS = _MX27_BUILD_PIN(4, 3), + MX27_PIN_UART2_RTS = _MX27_BUILD_PIN(4, 4), + MX27_PIN_PWMO = _MX27_BUILD_PIN(4, 5), + MX27_PIN_UART2_TXD = _MX27_BUILD_PIN(4, 6), + MX27_PIN_UART2_RXD = _MX27_BUILD_PIN(4, 7), + MX27_PIN_UART3_TXD = _MX27_BUILD_PIN(4, 8), + MX27_PIN_UART3_RXD = _MX27_BUILD_PIN(4, 9), + MX27_PIN_UART3_CTS = _MX27_BUILD_PIN(4, 10), + MX27_PIN_UART3_RTS = _MX27_BUILD_PIN(4, 11), + MX27_PIN_UART1_TXD = _MX27_BUILD_PIN(4, 12), + MX27_PIN_UART1_RXD = _MX27_BUILD_PIN(4, 13), + MX27_PIN_UART1_CTS = _MX27_BUILD_PIN(4, 14), + MX27_PIN_UART1_RTS = _MX27_BUILD_PIN(4, 15), + MX27_PIN_RTCK = _MX27_BUILD_PIN(4, 16), + MX27_PIN_RESET_OUT_B = _MX27_BUILD_PIN(4, 17), + MX27_PIN_SD1_D0 = _MX27_BUILD_PIN(4, 18), + MX27_PIN_SD1_D1 = _MX27_BUILD_PIN(4, 19), + MX27_PIN_SD1_D2 = _MX27_BUILD_PIN(4, 20), + MX27_PIN_SD1_D3 = _MX27_BUILD_PIN(4, 21), + MX27_PIN_SD1_CMD = _MX27_BUILD_PIN(4, 22), + MX27_PIN_SD1_CLK = _MX27_BUILD_PIN(4, 23), + MX27_PIN_USBOTG_CLK = _MX27_BUILD_PIN(4, 24), + MX27_PIN_USBOTG_DATA7 = _MX27_BUILD_PIN(4, 25), + + MX27_PIN_NFRB = _MX27_BUILD_PIN(5, 0), + MX27_PIN_NFCLE = _MX27_BUILD_PIN(5, 1), + MX27_PIN_NFWP_B = _MX27_BUILD_PIN(5, 2), + MX27_PIN_NFCE_B = _MX27_BUILD_PIN(5, 3), + MX27_PIN_NFALE = _MX27_BUILD_PIN(5, 4), + MX27_PIN_NFRE_B = _MX27_BUILD_PIN(5, 5), + MX27_PIN_NFWE_B = _MX27_BUILD_PIN(5, 6), + MX27_PIN_PC_POE = _MX27_BUILD_PIN(5, 7), + MX27_PIN_PC_RW_B = _MX27_BUILD_PIN(5, 8), + MX27_PIN_IOIS16 = _MX27_BUILD_PIN(5, 9), + MX27_PIN_PC_RST = _MX27_BUILD_PIN(5, 10), + MX27_PIN_PC_BVD2 = _MX27_BUILD_PIN(5, 11), + MX27_PIN_PC_BVD1 = _MX27_BUILD_PIN(5, 12), + MX27_PIN_PC_VS2 = _MX27_BUILD_PIN(5, 13), + MX27_PIN_PC_VS1 = _MX27_BUILD_PIN(5, 14), + MX27_PIN_CLKO = _MX27_BUILD_PIN(5, 15), + MX27_PIN_PC_PWRON = _MX27_BUILD_PIN(5, 16), + MX27_PIN_PC_READY = _MX27_BUILD_PIN(5, 17), + MX27_PIN_PC_WAIT_B = _MX27_BUILD_PIN(5, 18), + MX27_PIN_PC_CD2_B = _MX27_BUILD_PIN(5, 19), + MX27_PIN_PC_CD1_B = _MX27_BUILD_PIN(5, 20), + MX27_PIN_CS4_B = _MX27_BUILD_PIN(5, 21), + MX27_PIN_CS5_B = _MX27_BUILD_PIN(5, 22), + MX27_PIN_ATA_DATA15 = _MX27_BUILD_PIN(5, 23), +} iomux_pin_name_t; + +#endif /* __ASSEMBLY__ */ +#endif /* __ASM_ARCH_MXC_MX27_PINS_H__ */ Index: arch/arm/mach-mx27/gpio_mux.c =================================================================== --- /dev/null +++ arch/arm/mach-mx27/gpio_mux.c @@ -0,0 +1,293 @@ +/* + * linux/arch/arm/mach-mx27/gpio_mux.c + * + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2007 Robert Schwebel , Pengutronix + * + * 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. + */ +#include +#include +#include + +#include +#include +#include +#include "gpio_mux.h" + +/*! + * This structure defines the offset of registers in gpio module. + */ +enum gpio_reg { + GPIO_GIUS = 0x20, + GPIO_GPR = 0x38, + GPIO_PUEN = 0x40, + GPIO_DDIR = 0x00, + GPIO_OCR1 = 0x04, + GPIO_OCR2 = 0x08, + GPIO_ICONFA1 = 0x0C, + GPIO_ICONFA2 = 0x10, + GPIO_ICONFB1 = 0x14, + GPIO_ICONFB2 = 0x18, +}; + +/*! + * This enumeration data type defines the configuration for input mode. + */ +typedef enum { + GPIO_INPUT_GPIO = 0x00, + GPIO_INPUT_INTR = 0x01, + GPIO_INPUT_LOW = 0x02, + GPIO_INPUT_HIGH = 0x03 +} gpio_input_cfg_t; + +/*! + * This enumeration data type defines the configuration for output mode. + */ +typedef enum { + GPIO_OUTPUT_A = 0x00, + GPIO_OUTPUT_B = 0x01, + GPIO_OUTPUT_C = 0x02, + GPIO_OUTPUT_DR = 0x03 +} gpio_output_cfg_t; + +extern struct mxc_gpio_port mxc_gpio_ports[]; + +/*! + * defines a spinlock to protected the accessing to gpio pin. + */ +DEFINE_SPINLOCK(gpio_mux_lock); + +/*! + * This function enable or disable the pullup feature to the pin. + * @param port a pointer of gpio port + * @param index the index of the pin in the port + * @param en 0 if disable pullup, otherwise enable it. + * @return none + */ +static inline void _gpio_set_puen(struct mxc_gpio_port *port, u32 index, + bool en) +{ + u32 reg; + + reg = __raw_readl(port->base + GPIO_PUEN); + if (en) { + reg |= 1 << index; + } else { + reg &= ~(1 << index); + } + __raw_writel(reg, port->base + GPIO_PUEN); +} + +/*! + * This function set the input configuration A. + * @param port a pointer of gpio port + * @param index the index of the pin in the port + * @param config a mode as define in \b #gpio_input_cfg_t + * @return none + */ +static inline void _gpio_set_iconfa(struct mxc_gpio_port *port, u32 index, + gpio_input_cfg_t config) +{ + u32 reg, val; + u32 mask; + + mask = 0x3 << ((index % 16) << 1); + + if (index >= 16) { + reg = port->base + GPIO_ICONFA2; + val = config << ((index - 16) * 2); + } else { + reg = port->base + GPIO_ICONFA1; + val = config << (index * 2); + } + val |= __raw_readl(reg) & ~(mask); + __raw_writel(val, reg); +} + +/*! + * This function set the input configuration B. + * @param port a pointer of gpio port + * @param index the index of the pin in the port + * @param config a mode as define in \b #gpio_input_cfg_t + * @return none + */ +static inline void _gpio_set_iconfb(struct mxc_gpio_port *port, u32 index, + gpio_input_cfg_t config) +{ + u32 reg, val; + u32 mask; + + mask = 0x3 << ((index % 16) << 1); + + if (index >= 16) { + reg = port->base + GPIO_ICONFB2; + val = config << ((index - 16) * 2); + } else { + reg = port->base + GPIO_ICONFB1; + val = config << (index * 2); + } + val |= __raw_readl(reg) & (~mask); + __raw_writel(val, reg); +} + +/*! + * This function set the output configuration. + * @param port a pointer of gpio port + * @param index the index of the pin in the port + * @param config a mode as define in \b #gpio_output_cfg_t + * @return none + */ +static inline void _gpio_set_ocr(struct mxc_gpio_port *port, u32 index, + gpio_output_cfg_t config) +{ + u32 reg, val; + u32 mask; + + mask = 0x3 << ((index % 16) << 1); + if (index >= 16) { + reg = port->base + GPIO_OCR2; + val = config << ((index - 16) * 2); + } else { + reg = port->base + GPIO_OCR1; + val = config << (index * 2); + } + val |= __raw_readl(reg) & (~mask); + __raw_writel(val, reg); +} + +/*! + *@brief gpio_config_mux - just configure the mode of the gpio pin. + *@param pin a pin number as defined in \b #iomux_pin_name_t + *@param mode a module as define in \b #gpio_mux_mode_t; + * GPIO_MUX_PRIMARY set pin to work as primary function. + * GPIO_MUX_ALT set pin to work as alternate function. + * GPIO_MUX_GPIO set pin to work as output function based the data register + * GPIO_MUX_INPUT1 set pin to work as input function connected with A_OUT + * GPIO_MUX_INPUT2 set pin to work as input function connected with B_OUT + * GPIO_MUX_OUTPUT1 set pin to work as output function connected with A_IN + * GPIO_MUX_OUTPUT2 set pin to work as output function connected with B_IN + * GPIO_MUX_OUTPUT3 set pin to work as output function connected with C_IN + *@return 0 if successful, Non-zero otherwise + */ + +int gpio_config_mux(iomux_pin_name_t pin, gpio_mux_mode_t mode) +{ + unsigned long lock_flags; + u32 gius_reg, gpr_reg; + struct mxc_gpio_port *port; + u32 index, gpio = IOMUX_TO_GPIO(pin); + + port = &(mxc_gpio_ports[GPIO_TO_PORT(gpio)]); + index = GPIO_TO_INDEX(gpio); + + pr_debug("%s: Configuring PORT %c, bit %d\n", + __FUNCTION__, port->num + 'A', index); + + spin_lock_irqsave(&gpio_mux_lock, lock_flags); + + gius_reg = __raw_readl(port->base + GPIO_GIUS); + gpr_reg = __raw_readl(port->base + GPIO_GPR); + + switch (mode) { + case GPIO_MUX_PRIMARY: + gius_reg &= ~(1L << index); + gpr_reg &= ~(1L << index); + break; + case GPIO_MUX_ALT: + gius_reg &= ~(1L << index); + gpr_reg |= (1L << index); + break; + case GPIO_MUX_GPIO: + gius_reg |= (1L << index); + _gpio_set_ocr(port, index, GPIO_OUTPUT_DR); + break; + case GPIO_MUX_INPUT1: + gius_reg |= (1L << index); + _gpio_set_iconfa(port, index, GPIO_INPUT_GPIO); + break; + case GPIO_MUX_INPUT2: + gius_reg |= (1L << index); + _gpio_set_iconfb(port, index, GPIO_INPUT_GPIO); + break; + case GPIO_MUX_OUTPUT1: + gius_reg |= (1L << index); + _gpio_set_ocr(port, index, GPIO_OUTPUT_A); + break; + case GPIO_MUX_OUTPUT2: + gius_reg |= (1L << index); + _gpio_set_ocr(port, index, GPIO_OUTPUT_B); + break; + case GPIO_MUX_OUTPUT3: + gius_reg |= (1L << index); + _gpio_set_ocr(port, index, GPIO_OUTPUT_C); + break; + default: + spin_unlock_irqrestore(&gpio_mux_lock, lock_flags); + return -1; + } + + __raw_writel(gius_reg, port->base + GPIO_GIUS); + __raw_writel(gpr_reg, port->base + GPIO_GPR); + + spin_unlock_irqrestore(&gpio_mux_lock, lock_flags); + return 0; +} + +/*! + * This function is just used to enable or disable the pull up feature . + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @param en 0 if disable, Non-zero enable + * @return 0 if successful, Non-zero otherwise + */ +int gpio_set_puen(iomux_pin_name_t pin, bool en) +{ + unsigned long lock_flags; + + struct mxc_gpio_port *port; + u32 index, gpio = IOMUX_TO_GPIO(pin); + + port = &(mxc_gpio_ports[GPIO_TO_PORT(gpio)]); + index = GPIO_TO_INDEX(gpio); + + pr_debug("%s: Configuring output mode of PORT %c, bit %d\n", + __FUNCTION__, port->num + 'A', index); + + spin_lock_irqsave(&gpio_mux_lock, lock_flags); + + _gpio_set_puen(port, index, en); + spin_unlock_irqrestore(&gpio_mux_lock, lock_flags); + return 0; + +} + +/*! + * This function is just used to request a pin and configure it. + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @param mode a module as define in \b #gpio_mux_mode_t; + * @return 0 if successful, Non-zero otherwise + */ +int gpio_request_mux(iomux_pin_name_t pin, gpio_mux_mode_t mode) +{ + int ret; + ret = mxc_request_gpio(pin); + if (ret == 0) { + ret = gpio_config_mux(pin, mode); + if (ret) { + mxc_free_gpio(pin); + } + } + return ret; +} + +/*! + * This function is just used to release a pin. + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @return none + */ +void gpio_free_mux(iomux_pin_name_t pin) +{ + mxc_free_gpio(pin); +} Index: arch/arm/mach-mx27/gpio_mux.h =================================================================== --- /dev/null +++ arch/arm/mach-mx27/gpio_mux.h @@ -0,0 +1,68 @@ +/* + * linux/arch/arm/mach-mx27/gpio_mux.h + * + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2007 Robert Schwebel , Pengutronix + * + * 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 __ARCH_ARM_MACH_MX27_GPIO_MUX_H__ +#define __ARCH_ARM_MACH_MX27_GPIO_MUX_H__ + +/*! + * This enumeration data type defines the modes of the pin . + * GPIO_MUX_PRIMARY is the primary mode. + * GPIO_MUX_ALT is the alternate mode. + * GPIO_MUX_GPIO is the output mode and the signal source is data register. + * GPIO_MUX_INPUT1 is the input mode and the signal destination is A_OUT. + * GPIO_MUX_INPUT2 is the input mode and the signal destination is B_OUT. + * GPIO_MUX_OUTPUT1 is the output mode and the signal destination is A_IN. + * GPIO_MUX_OUTPUT2 is the output mode and the signal destination is B_IN. + * GPIO_MUX_OUTPUT3 is the output mode and the signal destination is C_IN. + */ +typedef enum { + GPIO_MUX_PRIMARY, + GPIO_MUX_ALT, + GPIO_MUX_GPIO, + GPIO_MUX_INPUT1, + GPIO_MUX_INPUT2, + GPIO_MUX_OUTPUT1, + GPIO_MUX_OUTPUT2, + GPIO_MUX_OUTPUT3, +} gpio_mux_mode_t; + +/*! + * This function is just used to request a pin and configure it. + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @param mode a module as define in \b #gpio_mux_mode_t; + * @return 0 if successful, Non-zero otherwise + */ +extern int gpio_request_mux(iomux_pin_name_t pin, gpio_mux_mode_t mode); + +/*! + * This function is just used to configure a pin . + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @param mode a module as define in \b #gpio_mux_mode_t; + * @return 0 if successful, Non-zero otherwise + */ +extern int gpio_config_mux(iomux_pin_name_t pin, gpio_mux_mode_t mode); + +/*! + * This function is just used to enable or disable the pull up feature . + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @param en 0 if disable, Non-zero enable + * @return 0 if successful, Non-zero otherwise + */ +extern int gpio_set_puen(iomux_pin_name_t pin, bool en); + +/*! + * This function is just used to release a pin. + * @param pin a pin number as defined in \b #iomux_pin_name_t + * @return none + */ +extern void gpio_free_mux(iomux_pin_name_t pin); + +#endif /* __ARCH_ARM_MACH_MX27_GPIO_MUX_H__ */ Index: include/asm-arm/arch-mxc/gpio.h =================================================================== --- /dev/null +++ include/asm-arm/arch-mxc/gpio.h @@ -0,0 +1,165 @@ +/* + * linux/arch/arm/mach-mx27/gpio.c + * + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + * Copyright 2007 Robert Schwebel , Pengutronix + * + * 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_ARCH_MXC_GPIO_H__ +#define __ASM_ARCH_MXC_GPIO_H__ + +/*! + * @defgroup GPIO General Purpose Input Output (GPIO) + */ + +/*! + * @file arch-mxc/gpio.h + * @brief This file contains the GPIO API functions. + * + * @ingroup GPIO + */ + +#include +#include +#include + +/* gpio related defines */ + +/*! + * There are two queues for registered GPIO ISRs. One is for high priority and + * the other is for low priority. The ISRs in the high priority queue will be + * called first before the low priority queue if more than one GPIO interrupt + * occurs at the same time. + */ +enum gpio_prio { + GPIO_HIGH_PRIO = 0, /*!< high priority queue */ + GPIO_LOW_PRIO /*!< low priority queue */ +}; + +/*! + * This enumeration data type defines various different ways for interrupting + * the ARM core from GPIO signals. The way to interrupt the core is dictated + * by the external hardware. + */ +typedef enum gpio_int_cfg { +#if defined(CONFIG_ARCH_MX27) + GPIO_INT_LOW_LEV = 0x3, /*!< low level sensitive */ + GPIO_INT_HIGH_LEV = 0x2, /*!< high level sensitive */ + GPIO_INT_RISE_EDGE = 0x0, /*!< rising edge sensitive */ + GPIO_INT_FALL_EDGE = 0x1, /*!< falling edge sensitive */ + GPIO_INT_NONE = 0x4 /*!< No interrupt */ +#else + GPIO_INT_LOW_LEV = 0x0, /*!< low level sensitive */ + GPIO_INT_HIGH_LEV = 0x1, /*!< high level sensitive */ + GPIO_INT_RISE_EDGE = 0x2, /*!< rising edge sensitive */ + GPIO_INT_FALL_EDGE = 0x3, /*!< falling edge sensitive */ + GPIO_INT_NONE = 0x4 /*!< No interrupt */ +#endif +} gpio_edge_t; + +typedef irqreturn_t(*gpio_irq_handler) (int, void *); + +/*! + * This function configures the GPIO signal to be either input or output. For + * input signals used for generating interrupts for the ARM core, how the + * interrupts being triggered is also passed in via \a icr. For output signals, + * the \a icr value doesn't matter. + * + * @param port specified port with 0-GPIO port 1; 1-GPIO port 2 + * @param sig_no specified GPIO signal (0 based) + * @param out #true for output, #false for input + * @param icr value defined in \b #gpio_int_cfg + */ +void gpio_config(__u32 port, __u32 sig_no, bool out, enum gpio_int_cfg icr); + +/*! + * This function sets a GPIO signal value. + * + * @param port specified port with 0-GPIO port 1; 1-GPIO port 2 + * @param sig_no specified GPIO signal (0 based) + * @param data value to be set (only 0 or 1 is valid) + */ +void gpio_set_data(__u32 port, __u32 sig_no, __u32 data); + +/*! + * This function returns the value of the GPIO signal. + * + * @param port specified port with 0-GPIO port 1; 1-GPIO port 2 + * @param sig_no specified GPIO signal (0 based) + * + * @return Value of the GPIO signal + */ +__u32 gpio_get_data(__u32 port, __u32 sig_no); + +/*! + * This function is responsible for registering a GPIO signal's ISR. + * + * @param port specified port with 0-GPIO port 1; 1-GPIO port 2 + * @param sig_no specified GPIO signal (0 based) + * @param prio priority as defined in \b enum \b #gpio_prio + * @param handler GPIO ISR function pointer for the GPIO signal + * @param irq_flags irq flags (not used) + * @param devname device name associated with the interrupt + * @param dev_id some unique information for the ISR + * + * @return 0 if successful; non-zero otherwise. + */ +int gpio_request_irq(__u32 port, __u32 sig_no, enum gpio_prio prio, + gpio_irq_handler handler, __u32 irq_flags, + const char *devname, void *dev_id); + +/*! + * This function un-registers an ISR with the GPIO interrupt module. + * + * @param port specified port with 0-GPIO port 1; 1-GPIO port 2 + * @param sig_no specified GPIO signal (0 based) + * @param prio priority as defined in \b enum \b #gpio_prio + */ +void gpio_free_irq(__u32 port, __u32 sig_no, enum gpio_prio prio); + +/*! + * Request ownership for a GPIO pin. The caller has to check the return value + * of this function to make sure it returns 0 before make use of that pin. + * @param pin a name defined by \b iomux_pin_name_t + * @return 0 if successful; Non-zero otherwise + */ +int mxc_request_gpio(iomux_pin_name_t pin); + +/*! + * Exported function to set a GPIO pin's direction + * @param pin a name defined by \b iomux_pin_name_t + * @param is_input 1 (or non-zero) for input; 0 for output + */ +void mxc_set_gpio_direction(iomux_pin_name_t pin, int is_input); + +/*! + * Exported function to set a GPIO pin's data output + * @param pin a name defined by \b iomux_pin_name_t + * @param data value to be set (only 0 or 1 is valid) + */ +void mxc_set_gpio_dataout(iomux_pin_name_t pin, u32 data); + +/*! + * Return the data value of a GPIO signal. + * @param pin a name defined by \b iomux_pin_name_t + * + * @return value (0 or 1) of the GPIO signal; -1 if pass in invalid pin + */ +int mxc_get_gpio_datain(iomux_pin_name_t pin); + +/*! + * Release ownership for a GPIO pin + * @param pin a name defined by \b iomux_pin_name_t + */ +void mxc_free_gpio(iomux_pin_name_t pin); + +/*! + * GPIO driver initialization + * @return always 0 + */ +int mxc_gpio_init(void); +#endif /* __ASM_ARCH_MXC_GPIO_H__ */ Index: arch/arm/mach-mx27/gpio.c =================================================================== --- /dev/null +++ arch/arm/mach-mx27/gpio.c @@ -0,0 +1,1196 @@ +/* + * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved. + */ + +/* + * The code contained herein is licensed under the GNU General Public + * License. You may obtain a copy of the GNU General Public License + * Version 2 or later at the following locations: + * + * http://www.opensource.org/licenses/gpl-license.html + * http://www.gnu.org/copyleft/gpl.html + */ + +#include +#include +#include +#include +#include +#include + +#include "gpio_mux.h" +#include "crm_regs.h" + +static int g_uart_activated[MXC_UART_NR] = { 0, 0, 0, 0, 0, 0 }; + +/*! + * @file mach-mx27/gpio.c + * + * @brief This file contains all the GPIO setup functions for the board. + * + * @ingroup GPIO_MX27 + */ + +/*! + * Setup GPIO for a UART port to be active + * + * @param port a UART port + * @param ir_mode indicates if the port is used for SIR + */ +void gpio_uart_active(int port, int ir_mode) +{ + if (port < 0 || port >= MXC_UART_NR) { + pr_info("Wrong port number: %d\n", port); + BUG(); + } + + if (g_uart_activated[port]) { + pr_info("UART %d has been activated multiple times\n", port + 1); + return; + } + g_uart_activated[port] = 1; + + switch (port) { + case 0: + gpio_request_mux(MX27_PIN_UART1_TXD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART1_RXD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART1_CTS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART1_RTS, GPIO_MUX_PRIMARY); + break; + case 1: + gpio_request_mux(MX27_PIN_UART2_TXD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART2_RXD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART2_CTS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART2_RTS, GPIO_MUX_PRIMARY); + break; + case 2: + gpio_request_mux(MX27_PIN_UART3_TXD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART3_RXD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART3_CTS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_UART3_RTS, GPIO_MUX_PRIMARY); + + /* enable or disable the IrDA transceiver based on ir_mode */ +/* FIXME refactor for generic boards */ +#ifdef CONFIG_MACH_MX27ADS + if (ir_mode == IRDA) + __raw_writew(PBC_BCTRL2_IRDA_EN, PBC_BCTRL2_CLEAR_REG); + else + __raw_writew(PBC_BCTRL2_IRDA_EN, PBC_BCTRL2_SET_REG); +#endif + break; + case 3: + gpio_request_mux(MX27_PIN_USBH1_TXDM, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_USBH1_RXDP, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_USBH1_TXDP, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_USBH1_FS, GPIO_MUX_ALT); + break; + case 4: + gpio_request_mux(MX27_PIN_CSI_D6, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSI_D7, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSI_VSYNC, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSI_HSYNC, GPIO_MUX_ALT); + break; + case 5: + gpio_request_mux(MX27_PIN_CSI_D0, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSI_D1, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSI_D2, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSI_D3, GPIO_MUX_ALT); + break; + default: + break; + } +} + +/*! + * Setup GPIO for a UART port to be inactive + * + * @param port a UART port + * @param ir_mode indicates if the port is used for SIR + */ +void gpio_uart_inactive(int port, int ir_mode) +{ + if (port < 0 || port >= MXC_UART_NR) { + pr_info("Wrong port number: %d\n", port); + BUG(); + } + + if (g_uart_activated[port] == 0) { + pr_info("UART %d has not been activated \n", port + 1); + return; + } + g_uart_activated[port] = 0; + + switch (port) { + case 0: + gpio_free_mux(MX27_PIN_UART1_TXD); + gpio_free_mux(MX27_PIN_UART1_RXD); + gpio_free_mux(MX27_PIN_UART1_CTS); + gpio_free_mux(MX27_PIN_UART1_RTS); + break; + case 1: + gpio_free_mux(MX27_PIN_UART2_TXD); + gpio_free_mux(MX27_PIN_UART2_RXD); + gpio_free_mux(MX27_PIN_UART2_CTS); + gpio_free_mux(MX27_PIN_UART2_RTS); + break; + case 2: + gpio_free_mux(MX27_PIN_UART3_TXD); + gpio_free_mux(MX27_PIN_UART3_RXD); + gpio_free_mux(MX27_PIN_UART3_CTS); + gpio_free_mux(MX27_PIN_UART3_RTS); + break; + case 3: + gpio_free_mux(MX27_PIN_USBH1_TXDM); + gpio_free_mux(MX27_PIN_USBH1_RXDP); + gpio_free_mux(MX27_PIN_USBH1_TXDP); + gpio_free_mux(MX27_PIN_USBH1_FS); + break; + case 4: + gpio_free_mux(MX27_PIN_CSI_D6); + gpio_free_mux(MX27_PIN_CSI_D7); + gpio_free_mux(MX27_PIN_CSI_VSYNC); + gpio_free_mux(MX27_PIN_CSI_HSYNC); + break; + case 5: + gpio_free_mux(MX27_PIN_CSI_D0); + gpio_free_mux(MX27_PIN_CSI_D1); + gpio_free_mux(MX27_PIN_CSI_D2); + gpio_free_mux(MX27_PIN_CSI_D3); + break; + default: + break; + } +} + +/*! + * Configure the IOMUX GPR register to receive shared SDMA UART events + * + * @param port a UART port + */ +void config_uartdma_event(int port) +{ + return; +} + +/*! + * Setup GPIO for USB, Total 34 signals + * PIN Configuration for USBOTG: High/Full speed OTG + * PE2,PE1,PE0,PE24,PE25 -- PRIMARY + PC7 - PC13 -- PRIMARY + PB23,PB24 -- PRIMARY + + * PIN Configuration for USBH2: : High/Full/Low speed host + * PA0 - PA4 -- PRIMARY + PD19, PD20,PD21,PD22,PD23,PD24,PD26 --Alternate (SECONDARY) + + * PIN Configuration for USBH1: Full/low speed host + * PB25 - PB31 -- PRIMARY + PB22 -- PRIMARY + */ +void gpio_usbh1_active(void) +{ + gpio_request_mux(MX27_PIN_USBH1_SUSP, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_RCV, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_FS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_OE_B, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_TXDM, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_TXDP, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_RXDM, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH1_RXDP, GPIO_MUX_PRIMARY); +} +void gpio_usbh1_inactive(void) +{ + gpio_free_mux(MX27_PIN_USBH1_SUSP); + gpio_free_mux(MX27_PIN_USBH1_RCV); + gpio_free_mux(MX27_PIN_USBH1_FS); + gpio_free_mux(MX27_PIN_USBH1_OE_B); + gpio_free_mux(MX27_PIN_USBH1_TXDM); + gpio_free_mux(MX27_PIN_USBH1_TXDP); + gpio_free_mux(MX27_PIN_USBH1_RXDM); + gpio_free_mux(MX27_PIN_USBH1_RXDP); +} + +/* + * conflicts with CSPI1 (MC13783) and CSPI2 (Connector) + */ +void gpio_usbh2_active(void) +{ + gpio_set_puen(MX27_PIN_USBH2_CLK, 0); + gpio_set_puen(MX27_PIN_USBH2_DIR, 0); + gpio_set_puen(MX27_PIN_USBH2_DATA7, 0); + gpio_set_puen(MX27_PIN_USBH2_NXT, 0); + gpio_set_puen(MX27_PIN_USBH2_STP, 0); + gpio_set_puen(MX27_PIN_CSPI2_SS2, 0); + gpio_set_puen(MX27_PIN_CSPI2_SS1, 0); + gpio_set_puen(MX27_PIN_CSPI2_SS0, 0); + gpio_set_puen(MX27_PIN_CSPI2_SCLK, 0); + gpio_set_puen(MX27_PIN_CSPI2_MISO, 0); + gpio_set_puen(MX27_PIN_CSPI2_MOSI, 0); + gpio_set_puen(MX27_PIN_CSPI1_SS2, 0); + + gpio_request_mux(MX27_PIN_USBH2_CLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH2_DIR, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH2_DATA7, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH2_NXT, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBH2_STP, GPIO_MUX_PRIMARY); + + gpio_request_mux(MX27_PIN_CSPI2_SS2, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSPI2_SS1, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSPI2_SS0, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSPI2_SCLK, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSPI2_MISO, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSPI2_MOSI, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_CSPI1_SS2, GPIO_MUX_ALT); +} +void gpio_usbh2_inactive(void) +{ + gpio_free_mux(MX27_PIN_USBH2_CLK); + gpio_free_mux(MX27_PIN_USBH2_DIR); + gpio_free_mux(MX27_PIN_USBH2_DATA7); + gpio_free_mux(MX27_PIN_USBH2_NXT); + gpio_free_mux(MX27_PIN_USBH2_STP); + + gpio_free_mux(MX27_PIN_CSPI2_SS2); + gpio_free_mux(MX27_PIN_CSPI2_SS1); + gpio_free_mux(MX27_PIN_CSPI2_SS0); + gpio_free_mux(MX27_PIN_CSPI2_SCLK); + gpio_free_mux(MX27_PIN_CSPI2_MISO); + gpio_free_mux(MX27_PIN_CSPI2_MOSI); + gpio_free_mux(MX27_PIN_CSPI1_SS2); + + gpio_set_puen(MX27_PIN_USBH2_CLK, 1); + gpio_set_puen(MX27_PIN_USBH2_DIR, 1); + gpio_set_puen(MX27_PIN_USBH2_DATA7, 1); + gpio_set_puen(MX27_PIN_USBH2_NXT, 1); + gpio_set_puen(MX27_PIN_USBH2_STP, 1); + gpio_set_puen(MX27_PIN_CSPI2_SS2, 1); + gpio_set_puen(MX27_PIN_CSPI2_SS1, 1); + gpio_set_puen(MX27_PIN_CSPI2_SS0, 1); + gpio_set_puen(MX27_PIN_CSPI2_SCLK, 1); + gpio_set_puen(MX27_PIN_CSPI2_MISO, 1); + gpio_set_puen(MX27_PIN_CSPI2_MOSI, 1); + gpio_set_puen(MX27_PIN_CSPI1_SS2, 1); +} + +void gpio_usbotg_hs_active(void) +{ + gpio_request_mux(MX27_PIN_USBOTG_DATA5, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA6, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA2, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA3, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA4, GPIO_MUX_PRIMARY); + + gpio_request_mux(MX27_PIN_USBOTG_DIR, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_STP, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_NXT, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_CLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USBOTG_DATA7, GPIO_MUX_PRIMARY); + + gpio_request_mux(MX27_PIN_USB_OC_B, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_USB_PWR, GPIO_MUX_PRIMARY); +} + +void gpio_usbotg_hs_inactive(void) +{ + gpio_free_mux(MX27_PIN_USBOTG_DATA5); + gpio_free_mux(MX27_PIN_USBOTG_DATA6); + gpio_free_mux(MX27_PIN_USBOTG_DATA0); + gpio_free_mux(MX27_PIN_USBOTG_DATA2); + gpio_free_mux(MX27_PIN_USBOTG_DATA1); + gpio_free_mux(MX27_PIN_USBOTG_DATA3); + gpio_free_mux(MX27_PIN_USBOTG_DATA4); + + gpio_free_mux(MX27_PIN_USBOTG_DIR); + gpio_free_mux(MX27_PIN_USBOTG_STP); + gpio_free_mux(MX27_PIN_USBOTG_NXT); + gpio_free_mux(MX27_PIN_USBOTG_CLK); + gpio_free_mux(MX27_PIN_USBOTG_DATA7); + + gpio_free_mux(MX27_PIN_USB_OC_B); + gpio_free_mux(MX27_PIN_USB_PWR); +} + +void gpio_usbotg_fs_active(void) +{ + return gpio_usbotg_hs_active(); +} + +void gpio_usbotg_fs_inactive(void) +{ + return gpio_usbotg_hs_inactive(); +} + +/*! + * end Setup GPIO for USB + * + */ + +/************************************************************************/ +/* for i2c gpio */ +/* I2C1: PD17,PD18 -- Primary */ +/* I2C2: PC5,PC6 -- Primary */ +/************************************************************************/ +/*! +* Setup GPIO for an I2C device to be active +* +* @param i2c_num an I2C device +*/ +void gpio_i2c_active(int i2c_num) +{ + switch (i2c_num) { + case 0: + gpio_request_mux(MX27_PIN_I2C_CLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_I2C_DATA, GPIO_MUX_PRIMARY); + break; + case 1: + gpio_request_mux(MX27_PIN_I2C2_SCL, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_I2C2_SDA, GPIO_MUX_PRIMARY); + break; + default: + printk(KERN_ERR "gpio_i2c_active no compatible I2C adapter\n"); + break; + } +} + +/*! + * * Setup GPIO for an I2C device to be inactive + * * + * * @param i2c_num an I2C device + */ +void gpio_i2c_inactive(int i2c_num) +{ + switch (i2c_num) { + case 0: + gpio_free_mux(MX27_PIN_I2C_CLK); + gpio_free_mux(MX27_PIN_I2C_DATA); + break; + case 1: + gpio_free_mux(MX27_PIN_I2C2_SCL); + gpio_free_mux(MX27_PIN_I2C2_SDA); + break; + default: + break; + } +} + +/*! + * Setup GPIO for a CSPI device to be active + * + * @param cspi_mod an CSPI device + */ +void gpio_spi_active(int cspi_mod) +{ + switch (cspi_mod) { + case 0: + /* SPI1 */ + gpio_request_mux(MX27_PIN_CSPI1_MOSI, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI1_MISO, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI1_SCLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI1_RDY, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI1_SS0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI1_SS1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI1_SS2, GPIO_MUX_PRIMARY); + break; + case 1: + /*SPI2 */ + gpio_request_mux(MX27_PIN_CSPI2_MOSI, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI2_MISO, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI2_SCLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI2_SS0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI2_SS1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSPI2_SS2, GPIO_MUX_PRIMARY); + break; + case 2: + /*SPI3 */ + gpio_request_mux(MX27_PIN_SD1_D0, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_SD1_CMD, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_SD1_CLK, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_SD1_D3, GPIO_MUX_ALT); + break; + + default: + break; + } +} + +/*! + * Setup GPIO for a CSPI device to be inactive + * + * @param cspi_mod a CSPI device + */ +void gpio_spi_inactive(int cspi_mod) +{ + switch (cspi_mod) { + case 0: + /* SPI1 */ + gpio_free_mux(MX27_PIN_CSPI1_MOSI); + gpio_free_mux(MX27_PIN_CSPI1_MISO); + gpio_free_mux(MX27_PIN_CSPI1_SCLK); + gpio_free_mux(MX27_PIN_CSPI1_RDY); + gpio_free_mux(MX27_PIN_CSPI1_SS0); + gpio_free_mux(MX27_PIN_CSPI1_SS1); + gpio_free_mux(MX27_PIN_CSPI1_SS2); + break; + case 1: + /*SPI2 */ + gpio_free_mux(MX27_PIN_CSPI2_MOSI); + gpio_free_mux(MX27_PIN_CSPI2_MISO); + gpio_free_mux(MX27_PIN_CSPI2_SCLK); + gpio_free_mux(MX27_PIN_CSPI2_SS0); + gpio_free_mux(MX27_PIN_CSPI2_SS1); + gpio_free_mux(MX27_PIN_CSPI2_SS2); + break; + case 2: + /*SPI3 */ + gpio_free_mux(MX27_PIN_SD1_D0); + gpio_free_mux(MX27_PIN_SD1_CMD); + gpio_free_mux(MX27_PIN_SD1_CLK); + gpio_free_mux(MX27_PIN_SD1_D3); + break; + + default: + break; + } +} + +/*! + * Setup GPIO for a nand flash device to be active + * + */ +void gpio_nand_active(void) +{ + unsigned long reg; + reg = __raw_readl(IO_ADDRESS(SYSCTRL_BASE_ADDR) + SYS_FMCR); + reg &= ~(1 << 4); + __raw_writel(reg, IO_ADDRESS(SYSCTRL_BASE_ADDR) + SYS_FMCR); + + gpio_request_mux(MX27_PIN_NFRB, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_NFCE_B, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_NFWP_B, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_NFCLE, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_NFALE, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_NFRE_B, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_NFWE_B, GPIO_MUX_PRIMARY); +} + +/*! + * Setup GPIO for a nand flash device to be inactive + * + */ +void gpio_nand_inactive(void) +{ + gpio_free_mux(MX27_PIN_NFRB); + gpio_free_mux(MX27_PIN_NFCE_B); + gpio_free_mux(MX27_PIN_NFWP_B); + gpio_free_mux(MX27_PIN_NFCLE); + gpio_free_mux(MX27_PIN_NFALE); + gpio_free_mux(MX27_PIN_NFRE_B); + gpio_free_mux(MX27_PIN_NFWE_B); +} + +/*! + * Setup GPIO for CSI device to be active + * + */ +void gpio_sensor_active(void) +{ + gpio_request_mux(MX27_PIN_CSI_D0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D2, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D3, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D4, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_MCLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_PIXCLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D5, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D6, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_D7, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_VSYNC, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CSI_HSYNC, GPIO_MUX_PRIMARY); + +/* FIXME refactor for generic boards */ +#ifdef CONFIG_MACH_MX27ADS +#ifdef CONFIG_MXC_CAMERA_MC521DA + __raw_writew(0x100, PBC_BCTRL2_SET_REG); +#else + __raw_writew(0x400, PBC_BCTRL2_SET_REG); +#endif +#endif +} + +void gpio_sensor_inactive(void) +{ + gpio_free_mux(MX27_PIN_CSI_D0); + gpio_free_mux(MX27_PIN_CSI_D1); + gpio_free_mux(MX27_PIN_CSI_D2); + gpio_free_mux(MX27_PIN_CSI_D3); + gpio_free_mux(MX27_PIN_CSI_D4); + gpio_free_mux(MX27_PIN_CSI_MCLK); + gpio_free_mux(MX27_PIN_CSI_PIXCLK); + gpio_free_mux(MX27_PIN_CSI_D5); + gpio_free_mux(MX27_PIN_CSI_D6); + gpio_free_mux(MX27_PIN_CSI_D7); + gpio_free_mux(MX27_PIN_CSI_VSYNC); + gpio_free_mux(MX27_PIN_CSI_HSYNC); + +/* FIXME refactor for generic boards */ +#ifdef CONFIG_MACH_MX27ADS +#ifdef CONFIG_MXC_CAMERA_MC521DA + __raw_writew(0x100, PBC_BCTRL2_CLEAR_REG); +#else + __raw_writew(0x400, PBC_BCTRL2_CLEAR_REG); +#endif +#endif +} + +void gpio_sensor_reset(bool flag) +{ + u16 temp; + + if (flag) { + temp = 0x200; + __raw_writew(temp, PBC_BCTRL2_CLEAR_REG); + } else { + temp = 0x200; + __raw_writew(temp, PBC_BCTRL2_SET_REG); + } +} + +/*! + * Setup GPIO for LCDC device to be active + * + */ +void gpio_lcdc_active(void) +{ + gpio_request_mux(MX27_PIN_LSCLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD2, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD3, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD4, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD5, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD6, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD7, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD8, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD9, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD10, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD11, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD12, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD13, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD14, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD15, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD16, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_LD17, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_REV, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CLS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_PS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SPL_SPR, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_HSYNC, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_VSYNC, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_CONTRAST, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_OE_ACD, GPIO_MUX_PRIMARY); +} + +/*! + * Setup GPIO for LCDC device to be inactive + * + */ +void gpio_lcdc_inactive(void) +{ + gpio_free_mux(MX27_PIN_LSCLK); + gpio_free_mux(MX27_PIN_LD0); + gpio_free_mux(MX27_PIN_LD1); + gpio_free_mux(MX27_PIN_LD2); + gpio_free_mux(MX27_PIN_LD3); + gpio_free_mux(MX27_PIN_LD4); + gpio_free_mux(MX27_PIN_LD5); + gpio_free_mux(MX27_PIN_LD6); + gpio_free_mux(MX27_PIN_LD7); + gpio_free_mux(MX27_PIN_LD8); + gpio_free_mux(MX27_PIN_LD9); + gpio_free_mux(MX27_PIN_LD10); + gpio_free_mux(MX27_PIN_LD11); + gpio_free_mux(MX27_PIN_LD12); + gpio_free_mux(MX27_PIN_LD13); + gpio_free_mux(MX27_PIN_LD14); + gpio_free_mux(MX27_PIN_LD15); + gpio_free_mux(MX27_PIN_LD16); + gpio_free_mux(MX27_PIN_LD17); + gpio_free_mux(MX27_PIN_REV); + gpio_free_mux(MX27_PIN_CLS); + gpio_free_mux(MX27_PIN_PS); + gpio_free_mux(MX27_PIN_SPL_SPR); + gpio_free_mux(MX27_PIN_HSYNC); + gpio_free_mux(MX27_PIN_VSYNC); + gpio_free_mux(MX27_PIN_CONTRAST); + gpio_free_mux(MX27_PIN_OE_ACD); +} + +/*! + * Setup GPIO PA25 low to start hard reset FS453 TV encoder + * + */ +void gpio_fs453_reset_low(void) +{ + gpio_free_mux(MX27_PIN_CLS); + if (gpio_request_mux(MX27_PIN_CLS, GPIO_MUX_GPIO)) { + printk(KERN_ERR "bug: request GPIO PA25 failed.\n"); + return; + } + + /* PA25 (CLS) as output */ + mxc_set_gpio_direction(MX27_PIN_CLS, 0); + gpio_config_mux(MX27_PIN_CLS, GPIO_MUX_GPIO); + mxc_set_gpio_dataout(MX27_PIN_CLS, 0); +} + +/*! + * Setup GPIO PA25 high to end hard reset FS453 TV encoder + * + */ +void gpio_fs453_reset_high(void) +{ + gpio_free_mux(MX27_PIN_CLS); + if (gpio_request_mux(MX27_PIN_CLS, GPIO_MUX_GPIO)) { + printk(KERN_ERR "bug: request GPIO PA25 failed.\n"); + return; + } + + /* PA25 (CLS) as output */ + mxc_set_gpio_direction(MX27_PIN_CLS, 0); + gpio_config_mux(MX27_PIN_CLS, GPIO_MUX_GPIO); + mxc_set_gpio_dataout(MX27_PIN_CLS, 1); +} + +/*! + * This function configures the IOMux block for PMIC standard operations. + * + */ +void gpio_pmic_active(void) +{ + gpio_config_mux(MX27_PIN_TOUT, GPIO_MUX_GPIO); + mxc_set_gpio_direction(MX27_PIN_TOUT, 1); +} + +/*! + * GPIO settings not required for keypad + * + */ +void gpio_keypad_active(void) +{ +} + +/*! + * GPIO settings not required for keypad + * + */ +void gpio_keypad_inactive(void) +{ +} + +/*! + * Setup GPIO for ATA device to be active + * + */ +void gpio_ata_active(void) +{ + gpio_request_mux(MX27_PIN_ATA_DATA0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA2, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA3, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA4, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA5, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA6, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA7, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA8, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA9, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA10, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA11, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA12, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA13, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA14, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA15, GPIO_MUX_PRIMARY); + + gpio_request_mux(MX27_PIN_PC_CD1_B, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_CD2_B, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_WAIT_B, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_READY, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_PWRON, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_VS1, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_VS2, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_BVD1, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_BVD2, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_RST, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_IOIS16, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_RW_B, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_PC_POE, GPIO_MUX_ALT); +} + +/*! + * Setup GPIO for ATA device to be inactive + * + */ +void gpio_ata_inactive(void) +{ + gpio_free_mux(MX27_PIN_ATA_DATA0); + gpio_free_mux(MX27_PIN_ATA_DATA1); + gpio_free_mux(MX27_PIN_ATA_DATA2); + gpio_free_mux(MX27_PIN_ATA_DATA3); + gpio_free_mux(MX27_PIN_ATA_DATA4); + gpio_free_mux(MX27_PIN_ATA_DATA5); + gpio_free_mux(MX27_PIN_ATA_DATA6); + gpio_free_mux(MX27_PIN_ATA_DATA7); + gpio_free_mux(MX27_PIN_ATA_DATA8); + gpio_free_mux(MX27_PIN_ATA_DATA9); + gpio_free_mux(MX27_PIN_ATA_DATA10); + gpio_free_mux(MX27_PIN_ATA_DATA11); + gpio_free_mux(MX27_PIN_ATA_DATA12); + gpio_free_mux(MX27_PIN_ATA_DATA13); + gpio_free_mux(MX27_PIN_ATA_DATA14); + gpio_free_mux(MX27_PIN_ATA_DATA15); + + gpio_free_mux(MX27_PIN_PC_CD1_B); + gpio_free_mux(MX27_PIN_PC_CD2_B); + gpio_free_mux(MX27_PIN_PC_WAIT_B); + gpio_free_mux(MX27_PIN_PC_READY); + gpio_free_mux(MX27_PIN_PC_PWRON); + gpio_free_mux(MX27_PIN_PC_VS1); + gpio_free_mux(MX27_PIN_PC_VS2); + gpio_free_mux(MX27_PIN_PC_BVD1); + gpio_free_mux(MX27_PIN_PC_BVD2); + gpio_free_mux(MX27_PIN_PC_RST); + gpio_free_mux(MX27_PIN_IOIS16); + gpio_free_mux(MX27_PIN_PC_RW_B); + gpio_free_mux(MX27_PIN_PC_POE); +} + +/*! + * Setup GPIO for FEC device to be active + * + */ +void gpio_fec_active(void) +{ + gpio_request_mux(MX27_PIN_ATA_DATA15, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA15, 0); + gpio_request_mux(MX27_PIN_ATA_DATA14, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA14, 0); + gpio_request_mux(MX27_PIN_ATA_DATA13, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA13, 1); + gpio_request_mux(MX27_PIN_ATA_DATA12, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA12, 1); + gpio_request_mux(MX27_PIN_ATA_DATA11, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA11, 1); + gpio_request_mux(MX27_PIN_ATA_DATA10, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA10, 1); + gpio_request_mux(MX27_PIN_ATA_DATA9, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA9, 1); + gpio_request_mux(MX27_PIN_ATA_DATA8, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA8, 1); + gpio_request_mux(MX27_PIN_ATA_DATA7, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA7, 0); + + gpio_request_mux(MX27_PIN_ATA_DATA6, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_ATA_DATA5, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA5, 1); + gpio_request_mux(MX27_PIN_ATA_DATA4, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA4, 1); + gpio_request_mux(MX27_PIN_ATA_DATA3, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA3, 1); + gpio_request_mux(MX27_PIN_ATA_DATA2, GPIO_MUX_INPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA2, 1); + gpio_request_mux(MX27_PIN_ATA_DATA1, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA1, 0); + gpio_request_mux(MX27_PIN_ATA_DATA0, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_ATA_DATA0, 0); + gpio_request_mux(MX27_PIN_SD3_CLK, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_SD3_CLK, 0); + gpio_request_mux(MX27_PIN_SD3_CMD, GPIO_MUX_OUTPUT1); + mxc_set_gpio_direction(MX27_PIN_SD3_CMD, 0); + +/* FIXME refactor for generic boards */ +#ifdef CONFIG_MACH_MX27ADS + __raw_writew(PBC_BCTRL2_ATAFEC_EN, PBC_BCTRL2_CLEAR_REG); + __raw_writew(PBC_BCTRL2_ATAFEC_SEL, PBC_BCTRL2_SET_REG); +#endif +} + +/*! + * Setup GPIO for FEC device to be inactive + * + */ +void gpio_fec_inactive(void) +{ + gpio_free_mux(MX27_PIN_ATA_DATA0); + gpio_free_mux(MX27_PIN_ATA_DATA1); + gpio_free_mux(MX27_PIN_ATA_DATA2); + gpio_free_mux(MX27_PIN_ATA_DATA3); + gpio_free_mux(MX27_PIN_ATA_DATA4); + gpio_free_mux(MX27_PIN_ATA_DATA5); + gpio_free_mux(MX27_PIN_ATA_DATA6); + gpio_free_mux(MX27_PIN_ATA_DATA7); + gpio_free_mux(MX27_PIN_ATA_DATA8); + gpio_free_mux(MX27_PIN_ATA_DATA9); + gpio_free_mux(MX27_PIN_ATA_DATA10); + gpio_free_mux(MX27_PIN_ATA_DATA11); + gpio_free_mux(MX27_PIN_ATA_DATA12); + gpio_free_mux(MX27_PIN_ATA_DATA13); + gpio_free_mux(MX27_PIN_ATA_DATA14); + gpio_free_mux(MX27_PIN_ATA_DATA15); + + gpio_free_mux(MX27_PIN_SD3_CMD); + gpio_free_mux(MX27_PIN_SD3_CLK); +} + +/*! + * Setup GPIO for SLCDC device to be active + * + */ +void gpio_slcdc_active(int type) +{ + switch (type) { + case 0: + gpio_request_mux(MX27_PIN_SSI3_CLK, GPIO_MUX_ALT); /* CLK */ + gpio_request_mux(MX27_PIN_SSI3_TXDAT, GPIO_MUX_ALT); /* CS */ + gpio_request_mux(MX27_PIN_SSI3_RXDAT, GPIO_MUX_ALT); /* RS */ + gpio_request_mux(MX27_PIN_SSI3_FS, GPIO_MUX_ALT); /* D0 */ + break; + + case 1: + gpio_request_mux(MX27_PIN_SD2_D1, GPIO_MUX_GPIO); /* CLK */ + gpio_request_mux(MX27_PIN_SD2_D2, GPIO_MUX_GPIO); /* D0 */ + gpio_request_mux(MX27_PIN_SD2_D3, GPIO_MUX_GPIO); /* RS */ + gpio_request_mux(MX27_PIN_SD2_CMD, GPIO_MUX_GPIO); /* CS */ + break; + + case 2: + gpio_request_mux(MX27_PIN_LD0, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD1, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD2, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD3, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD4, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD5, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD6, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD7, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD8, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD9, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD10, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD11, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD12, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD13, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD14, GPIO_MUX_GPIO); + gpio_request_mux(MX27_PIN_LD15, GPIO_MUX_GPIO); + break; + + default: + break; + } + + return; +} + +/*! + * Setup GPIO for SLCDC device to be inactive + * + */ +void gpio_slcdc_inactive(int type) +{ + switch (type) { + case 0: + gpio_free_mux(MX27_PIN_SSI3_CLK); /* CLK */ + gpio_free_mux(MX27_PIN_SSI3_TXDAT); /* CS */ + gpio_free_mux(MX27_PIN_SSI3_RXDAT); /* RS */ + gpio_free_mux(MX27_PIN_SSI3_FS); /* D0 */ + break; + + case 1: + gpio_free_mux(MX27_PIN_SD2_D1); /* CLK */ + gpio_free_mux(MX27_PIN_SD2_D2); /* D0 */ + gpio_free_mux(MX27_PIN_SD2_D3); /* RS */ + gpio_free_mux(MX27_PIN_SD2_CMD); /* CS */ + break; + + case 2: + gpio_free_mux(MX27_PIN_LD0); + gpio_free_mux(MX27_PIN_LD1); + gpio_free_mux(MX27_PIN_LD2); + gpio_free_mux(MX27_PIN_LD3); + gpio_free_mux(MX27_PIN_LD4); + gpio_free_mux(MX27_PIN_LD5); + gpio_free_mux(MX27_PIN_LD6); + gpio_free_mux(MX27_PIN_LD7); + gpio_free_mux(MX27_PIN_LD8); + gpio_free_mux(MX27_PIN_LD9); + gpio_free_mux(MX27_PIN_LD10); + gpio_free_mux(MX27_PIN_LD11); + gpio_free_mux(MX27_PIN_LD12); + gpio_free_mux(MX27_PIN_LD13); + gpio_free_mux(MX27_PIN_LD14); + gpio_free_mux(MX27_PIN_LD15); + break; + + default: + break; + } + + return; +} + +void gpio_ssi_active(int ssi_num) +{ + switch (ssi_num) { + case 0: + gpio_request_mux(MX27_PIN_SSI1_FS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SSI1_RXDAT, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SSI1_TXDAT, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SSI1_CLK, GPIO_MUX_PRIMARY); + gpio_set_puen(MX27_PIN_SSI1_FS, 0); + gpio_set_puen(MX27_PIN_SSI1_RXDAT, 0); + gpio_set_puen(MX27_PIN_SSI1_TXDAT, 0); + gpio_set_puen(MX27_PIN_SSI1_CLK, 0); + break; + case 1: + gpio_request_mux(MX27_PIN_SSI2_FS, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SSI2_RXDAT, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SSI2_TXDAT, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SSI2_CLK, GPIO_MUX_PRIMARY); + gpio_set_puen(MX27_PIN_SSI2_FS, 0); + gpio_set_puen(MX27_PIN_SSI2_RXDAT, 0); + gpio_set_puen(MX27_PIN_SSI2_TXDAT, 0); + gpio_set_puen(MX27_PIN_SSI2_CLK, 0); + break; + default: + break; + } + return; +} + +/*! + * * Setup GPIO for a SSI port to be inactive + * * + * * @param ssi_num an SSI port num + */ + +void gpio_ssi_inactive(int ssi_num) +{ + switch (ssi_num) { + case 0: + gpio_free_mux(MX27_PIN_SSI1_FS); + gpio_free_mux(MX27_PIN_SSI1_RXDAT); + gpio_free_mux(MX27_PIN_SSI1_TXDAT); + gpio_free_mux(MX27_PIN_SSI1_CLK); + break; + case 1: + gpio_free_mux(MX27_PIN_SSI2_FS); + gpio_free_mux(MX27_PIN_SSI2_RXDAT); + gpio_free_mux(MX27_PIN_SSI2_TXDAT); + gpio_free_mux(MX27_PIN_SSI2_CLK); + break; + default: + break; + } + return; +} + +/*! + * Setup GPIO for SDHC to be active + * + * @param module SDHC module number + */ +void gpio_sdhc_active(int module) +{ + u16 data; + switch (module) { + case 0: + gpio_request_mux(MX27_PIN_SD1_CLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD1_CMD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD1_D0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD1_D1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD1_D2, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD1_D3, GPIO_MUX_PRIMARY); + /* 22k pull up for sd1 dat3 pins */ + data = __raw_readw(IO_ADDRESS(SYSCTRL_BASE_ADDR + 0x54)); + data |= 0x0c; + __raw_writew(data, IO_ADDRESS(SYSCTRL_BASE_ADDR + 0x54)); + /*mxc_clks_enable(SDHC1_CLK); + mxc_clks_enable(PERCLK2); */ + break; + case 1: + gpio_request_mux(MX27_PIN_SD2_CLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD2_CMD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD2_D0, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD2_D1, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD2_D2, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD2_D3, GPIO_MUX_PRIMARY); + /* 22k pull up for sd2 pins */ + data = __raw_readw(IO_ADDRESS(SYSCTRL_BASE_ADDR + 0x54)); + data &= ~0xfff0; + data |= 0xfff0; + __raw_writew(data, IO_ADDRESS(SYSCTRL_BASE_ADDR + 0x54)); + /*mxc_clks_enable(SDHC2_CLK); + mxc_clks_enable(PERCLK2); */ + break; + case 2: + gpio_request_mux(MX27_PIN_SD3_CLK, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_SD3_CMD, GPIO_MUX_PRIMARY); + gpio_request_mux(MX27_PIN_ATA_DATA0, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_ATA_DATA1, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_ATA_DATA2, GPIO_MUX_ALT); + gpio_request_mux(MX27_PIN_ATA_DATA3, GPIO_MUX_ALT); + /*mxc_clks_enable(SDHC3_CLK); + mxc_clks_enable(PERCLK2); */ + break; + default: + break; + } +} + +/*! + * Setup GPIO for SDHC1 to be inactive + * + * @param module SDHC module number + */ +void gpio_sdhc_inactive(int module) +{ + switch (module) { + case 0: + gpio_free_mux(MX27_PIN_SD1_CLK); + gpio_free_mux(MX27_PIN_SD1_CMD); + gpio_free_mux(MX27_PIN_SD1_D0); + gpio_free_mux(MX27_PIN_SD1_D1); + gpio_free_mux(MX27_PIN_SD1_D2); + gpio_free_mux(MX27_PIN_SD1_D3); + /*mxc_clks_disable(SDHC1_CLK); */ + break; + case 1: + gpio_free_mux(MX27_PIN_SD2_CLK); + gpio_free_mux(MX27_PIN_SD2_CMD); + gpio_free_mux(MX27_PIN_SD2_D0); + gpio_free_mux(MX27_PIN_SD2_D1); + gpio_free_mux(MX27_PIN_SD2_D2); + gpio_free_mux(MX27_PIN_SD2_D3); + /*mxc_clks_disable(SDHC2_CLK); */ + break; + case 2: + gpio_free_mux(MX27_PIN_SD3_CLK); + gpio_free_mux(MX27_PIN_SD3_CMD); + gpio_free_mux(MX27_PIN_ATA_DATA0); + gpio_free_mux(MX27_PIN_ATA_DATA1); + gpio_free_mux(MX27_PIN_ATA_DATA2); + gpio_free_mux(MX27_PIN_ATA_DATA3); + /*mxc_clks_disable(SDHC3_CLK); */ + break; + default: + break; + } +} + +/* + * Probe for the card. If present the GPIO data would be set. + */ +int sdhc_get_card_det_status(struct device *dev) +{ + return 0; +} + +/* + * Return the card detect pin. + */ +int sdhc_init_card_det(int id) +{ + int ret = 0; + switch (id) { + case 0: + ret = EXPIO_INT_SD1_EN; + break; + case 1: + ret = EXPIO_INT_SD2_EN; + break; + default: + ret = 0; + break; + } + return ret; +} + +/* + * Power on/off Sharp QVGA panel. + */ +void board_power_lcd(int on) +{ +/* FIXME refactor for generic boards */ +#ifdef CONFIG_MACH_MX27ADS + if (on) + __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_SET_REG); + else + __raw_writew(PBC_BCTRL1_LCDON, PBC_BCTRL1_CLEAR_REG); +#endif +} + +void gpio_owire_active(void) +{ + gpio_request_mux(MX27_PIN_RTCK, GPIO_MUX_ALT); +} + +void gpio_owire_inactive(void) +{ + gpio_request_mux(MX27_PIN_RTCK, GPIO_MUX_PRIMARY); +} + +void gpio_irda_active(void) +{ + gpio_uart_active(2, 0); + /* Band width select */ + //__raw_writew(PBC_BCTRL2_IRDA_SD, PBC_BCTRL2_SET_REG); +} + +void gpio_irda_inactive(void) +{ + gpio_uart_inactive(2, 0); +} + +EXPORT_SYMBOL(gpio_uart_active); +EXPORT_SYMBOL(gpio_uart_inactive); +EXPORT_SYMBOL(config_uartdma_event); +EXPORT_SYMBOL(gpio_usbh1_active); +EXPORT_SYMBOL(gpio_usbh1_inactive); +EXPORT_SYMBOL(gpio_usbh2_active); +EXPORT_SYMBOL(gpio_usbh2_inactive); +EXPORT_SYMBOL(gpio_usbotg_hs_active); +EXPORT_SYMBOL(gpio_usbotg_hs_inactive); +EXPORT_SYMBOL(gpio_usbotg_fs_active); +EXPORT_SYMBOL(gpio_usbotg_fs_inactive); +EXPORT_SYMBOL(gpio_i2c_active); +EXPORT_SYMBOL(gpio_i2c_inactive); +EXPORT_SYMBOL(gpio_spi_active); +EXPORT_SYMBOL(gpio_spi_inactive); +EXPORT_SYMBOL(gpio_nand_active); +EXPORT_SYMBOL(gpio_nand_inactive); +EXPORT_SYMBOL(gpio_sensor_active); +EXPORT_SYMBOL(gpio_sensor_inactive); +EXPORT_SYMBOL(gpio_sensor_reset); +EXPORT_SYMBOL(gpio_lcdc_active); +EXPORT_SYMBOL(gpio_lcdc_inactive); +EXPORT_SYMBOL(gpio_fs453_reset_low); +EXPORT_SYMBOL(gpio_fs453_reset_high); +EXPORT_SYMBOL(gpio_pmic_active); +EXPORT_SYMBOL(gpio_keypad_active); +EXPORT_SYMBOL(gpio_keypad_inactive); +EXPORT_SYMBOL(gpio_ata_active); +EXPORT_SYMBOL(gpio_ata_inactive); +EXPORT_SYMBOL(gpio_fec_active); +EXPORT_SYMBOL(gpio_fec_inactive); +EXPORT_SYMBOL(gpio_slcdc_active); +EXPORT_SYMBOL(gpio_slcdc_inactive); +EXPORT_SYMBOL(gpio_ssi_active); +EXPORT_SYMBOL(gpio_ssi_inactive); +EXPORT_SYMBOL(gpio_sdhc_active); +EXPORT_SYMBOL(gpio_sdhc_inactive); +EXPORT_SYMBOL(sdhc_get_card_det_status); +EXPORT_SYMBOL(sdhc_init_card_det); +EXPORT_SYMBOL(board_power_lcd); +EXPORT_SYMBOL(gpio_owire_active); +EXPORT_SYMBOL(gpio_owire_inactive); +EXPORT_SYMBOL(gpio_irda_active); +EXPORT_SYMBOL(gpio_irda_inactive); +