/* * Copyright 2008-2009 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 */ #ifndef __MACH_MX25_IOMUX_H__ #define __MACH_MX25_IOMUX_H__ #include #include #include "mx25_pins.h" /*! * @file mach-mx25/iomux.h * * @brief I/O Muxing control definitions and functions * * @ingroup GPIO_MX25 */ /*! * IOMUX functions * SW_MUX_CTL */ typedef enum iomux_pin_config { MUX_CONFIG_FUNC = 0, /*!< used as function */ MUX_CONFIG_ALT1, /*!< used as alternate function 1 */ MUX_CONFIG_ALT2, /*!< used as alternate function 2 */ MUX_CONFIG_ALT3, /*!< used as alternate function 3 */ MUX_CONFIG_ALT4, /*!< used as alternate function 4 */ MUX_CONFIG_ALT5, /*!< used as alternate function 5 */ MUX_CONFIG_ALT6, /*!< used as alternate function 6 */ MUX_CONFIG_ALT7, /*!< used as alternate function 7 */ MUX_CONFIG_SION = 0x1 << 4, /*!< used as LOOPBACK:MUX SION bit */ MUX_CONFIG_GPIO = MUX_CONFIG_ALT5, /*!< used as GPIO */ } iomux_pin_cfg_t; /*! * IOMUX pad functions * SW_PAD_CTL */ typedef enum iomux_pad_config { PAD_CTL_DRV_3_3V = 0x0 << 13, PAD_CTL_DRV_1_8V = 0x1 << 13, PAD_CTL_HYS_CMOS = 0x0 << 8, PAD_CTL_HYS_SCHMITZ = 0x1 << 8, PAD_CTL_PKE_NONE = 0x0 << 7, PAD_CTL_PKE_ENABLE = 0x1 << 7, PAD_CTL_PUE_KEEPER = 0x0 << 6, PAD_CTL_PUE_PULL = 0x1 << 6, PAD_CTL_PUE_PUD = 0x1 << 6, PAD_CTL_100K_PD = 0x0 << 4, PAD_CTL_47K_PU = 0x1 << 4, PAD_CTL_100K_PU = 0x2 << 4, PAD_CTL_22K_PU = 0x3 << 4, PAD_CTL_ODE_CMOS = 0x0 << 3, PAD_CTL_ODE_OpenDrain = 0x1 << 3, PAD_CTL_DRV_NORMAL = 0x0 << 1, PAD_CTL_DRV_HIGH = 0x1 << 1, PAD_CTL_DRV_MAX = 0x2 << 1, PAD_CTL_SRE_SLOW = 0x0 << 0, PAD_CTL_SRE_FAST = 0x1 << 0 } iomux_pad_config_t; /*! * IOMUX general purpose functions * IOMUXC_GPR1 */ typedef enum iomux_gp_func { MUX_SDCTL_CSD0_SEL = 0x1 << 0, MUX_SDCTL_CSD1_SEL = 0x1 << 1, } iomux_gp_func_t; /*! * IOMUX SELECT_INPUT register index * Base register is IOMUXSW_INPUT_CTL in iomux.c */ typedef enum iomux_input_select { MUX_IN_AUDMUX_P4_INPUT_DA_AMX = 0, MUX_IN_AUDMUX_P4_INPUT_DB_AMX, MUX_IN_AUDMUX_P4_INPUT_RXCLK_AMX, MUX_IN_AUDMUX_P4_INPUT_RXFS_AMX, MUX_IN_AUDMUX_P4_INPUT_TXCLK_AMX, MUX_IN_AUDMUX_P4_INPUT_TXFS_AMX, MUX_IN_AUDMUX_P7_INPUT_DA_AMX, MUX_IN_AUDMUX_P7_INPUT_TXFS_AMX, MUX_IN_CAN1_IPP_IND_CANRX, MUX_IN_CAN2_IPP_IND_CANRX, MUX_IN_CSI_IPP_CSI_D_0, MUX_IN_CSI_IPP_CSI_D_1, MUX_IN_CSPI1_IPP_IND_SS3_B, MUX_IN_CSPI2_IPP_CSPI_CLK_IN, MUX_IN_CSPI2_IPP_IND_DATAREADY_B, MUX_IN_CSPI2_IPP_IND_MISO, MUX_IN_CSPI2_IPP_IND_MOSI, MUX_IN_CSPI2_IPP_IND_SS0_B, MUX_IN_CSPI2_IPP_IND_SS1_B, MUX_IN_CSPI3_IPP_CSPI_CLK_IN, MUX_IN_CSPI3_IPP_IND_DATAREADY_B, MUX_IN_CSPI3_IPP_IND_MISO, MUX_IN_CSPI3_IPP_IND_MOSI, MUX_IN_CSPI3_IPP_IND_SS0_B, MUX_IN_CSPI3_IPP_IND_SS1_B, MUX_IN_CSPI3_IPP_IND_SS2_B, MUX_IN_CSPI3_IPP_IND_SS3_B, MUX_IN_ESDHC1_IPP_DAT4_IN, MUX_IN_ESDHC1_IPP_DAT5_IN, MUX_IN_ESDHC1_IPP_DAT6_IN, MUX_IN_ESDHC1_IPP_DAT7_IN, MUX_IN_ESDHC2_IPP_CARD_CLK_IN, MUX_IN_ESDHC2_IPP_CMD_IN, MUX_IN_ESDHC2_IPP_DAT0_IN, MUX_IN_ESDHC2_IPP_DAT1_IN, MUX_IN_ESDHC2_IPP_DAT2_IN, MUX_IN_ESDHC2_IPP_DAT3_IN, MUX_IN_ESDHC2_IPP_DAT4_IN, MUX_IN_ESDHC2_IPP_DAT5_IN, MUX_IN_ESDHC2_IPP_DAT6_IN, MUX_IN_ESDHC2_IPP_DAT7_IN, MUX_IN_FEC_FEC_COL, MUX_IN_FEC_FEC_CRS, MUX_IN_FEC_FEC_RDATA_2, MUX_IN_FEC_FEC_RDATA_3, MUX_IN_FEC_FEC_RX_CLK, MUX_IN_FEC_FEC_RX_ER, MUX_IN_I2C2_IPP_SCL_IN, MUX_IN_I2C2_IPP_SDA_IN, MUX_IN_I2C3_IPP_SCL_IN, MUX_IN_I2C3_IPP_SDA_IN, MUX_IN_KPP_IPP_IND_COL_4, MUX_IN_KPP_IPP_IND_COL_5, MUX_IN_KPP_IPP_IND_COL_6, MUX_IN_KPP_IPP_IND_COL_7, MUX_IN_KPP_IPP_IND_ROW_4, MUX_IN_KPP_IPP_IND_ROW_5, MUX_IN_KPP_IPP_IND_ROW_6, MUX_IN_KPP_IPP_IND_ROW_7, MUX_IN_SIM1_PIN_SIM_RCVD1_IN, MUX_IN_SIM1_PIN_SIM_SIMPD1, MUX_IN_SIM1_SIM_RCVD1_IO, MUX_IN_SIM2_PIN_SIM_RCVD1_IN, MUX_IN_SIM2_PIN_SIM_SIMPD1, MUX_IN_SIM2_SIM_RCVD1_IO, MUX_IN_UART3_IPP_UART_RTS_B, MUX_IN_UART3_IPP_UART_RXD_MUX, MUX_IN_UART4_IPP_UART_RTS_B, MUX_IN_UART4_IPP_UART_RXD_MUX, MUX_IN_UART5_IPP_UART_RTS_B, MUX_IN_UART5_IPP_UART_RXD_MUX, MUX_IN_USB_TOP_IPP_IND_OTG_USB_OC, MUX_IN_USB_TOP_IPP_IND_UH2_USB_OC, } iomux_input_select_t; /*! * IOMUX input functions * SW_SELECT_INPUT bits 2-0 */ typedef enum iomux_input_config { INPUT_CTL_PATH0 = 0x0, INPUT_CTL_PATH1, INPUT_CTL_PATH2, INPUT_CTL_PATH3, INPUT_CTL_PATH4, INPUT_CTL_PATH5, INPUT_CTL_PATH6, INPUT_CTL_PATH7, } iomux_input_cfg_t; struct mxc_iomux_pin_cfg { iomux_pin_name_t pin; u8 mux_mode; u16 pad_cfg; u8 in_select; u8 in_mode; }; /*! * Request ownership for an IO pin. This function has to be the first one * being called before that pin is used. The caller has to check the * return value to make sure it returns 0. * * @param pin a name defined by \b iomux_pin_name_t * @param cfg an input function as defined in \b #iomux_pin_cfg_t * * @return 0 if successful; Non-zero otherwise */ int mxc_request_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t cfg); /*! * Release ownership for an IO pin * * @param pin a name defined by \b iomux_pin_name_t * @param cfg an input function as defined in \b #iomux_pin_cfg_t */ void mxc_free_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t cfg); /*! * This function enables/disables the general purpose function for a particular * signal. * * @param gp one signal as defined in \b #iomux_gp_func_t * @param en \b #true to enable; \b #false to disable */ void mxc_iomux_set_gpr(iomux_gp_func_t gp, bool en); /*! * This function configures the pad value for a IOMUX pin. * * @param pin a pin number as defined in \b #iomux_pin_name_t * @param config the ORed value of elements defined in \b * #iomux_pad_config_t */ void mxc_iomux_set_pad(iomux_pin_name_t pin, u32 config); /*! * This function configures input path. * * @param input index of input select register as defined in \b * #iomux_input_select_t * @param config the binary value of elements defined in \b * #iomux_input_cfg_t */ void mxc_iomux_set_input(iomux_input_select_t input, u32 config); #endif