/* * Copyright (C) 2010 Freescale Semiconductor, Inc. All Rights Reserved. * * 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 program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * You should have received a copy of the GNU General Public License along * with this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #ifndef __MACH_MX53_IOMUX_H__ #define __MACH_MX53_IOMUX_H__ #include #include #include #include /*! * @file mach-mx53/iomux.h * * @brief I/O Muxing control definitions and functions * * @ingroup GPIO_MX53 */ typedef unsigned int iomux_pin_name_t; /*! * various IOMUX output functions */ typedef enum iomux_config { IOMUX_CONFIG_ALT0, /*!< used as alternate function 0 */ IOMUX_CONFIG_ALT1, /*!< used as alternate function 1 */ IOMUX_CONFIG_ALT2, /*!< used as alternate function 2 */ IOMUX_CONFIG_ALT3, /*!< used as alternate function 3 */ IOMUX_CONFIG_ALT4, /*!< used as alternate function 4 */ IOMUX_CONFIG_ALT5, /*!< used as alternate function 5 */ IOMUX_CONFIG_ALT6, /*!< used as alternate function 6 */ IOMUX_CONFIG_ALT7, /*!< used as alternate function 7 */ IOMUX_CONFIG_GPIO, /*!< added to help user use GPIO mode */ IOMUX_CONFIG_SION = 0x1 << 4, /*!< used as LOOPBACK:MUX SION bit */ } iomux_pin_cfg_t; /*! * various IOMUX pad functions */ typedef enum iomux_pad_config { PAD_CTL_SRE_SLOW = 0x0 << 0, PAD_CTL_SRE_FAST = 0x1 << 0, PAD_CTL_DRV_LOW = 0x0 << 1, PAD_CTL_DRV_MEDIUM = 0x1 << 1, PAD_CTL_DRV_HIGH = 0x2 << 1, PAD_CTL_DRV_MAX = 0x3 << 1, PAD_CTL_ODE_OPENDRAIN_NONE = 0x0 << 3, PAD_CTL_ODE_OPENDRAIN_ENABLE = 0x1 << 3, 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_PUE_KEEPER = 0x0 << 6, PAD_CTL_PUE_PULL = 0x1 << 6, PAD_CTL_PKE_NONE = 0x0 << 7, PAD_CTL_PKE_ENABLE = 0x1 << 7, PAD_CTL_HYS_NONE = 0x0 << 8, PAD_CTL_HYS_ENABLE = 0x1 << 8, PAD_CTL_DDR_INPUT_CMOS = 0x0 << 9, PAD_CTL_DDR_INPUT_DDR = 0x1 << 9, PAD_CTL_DRV_VOT_LOW = 0x0 << 13, PAD_CTL_DRV_VOT_HIGH = 0x1 << 13, } iomux_pad_config_t; /*! * various IOMUX input select register index */ typedef enum iomux_input_select { MUX_IN_AUDMUX_P4_INPUT_DA_AMX_SELECT_I = 0, MUX_IN_AUDMUX_P4_INPUT_DB_AMX_SELECT_I, MUX_IN_AUDMUX_P4_INPUT_RXCLK_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P4_INPUT_RXFS_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P4_INPUT_TXCLK_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P4_INPUT_TXFS_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P5_INPUT_DA_AMX_SELECT_I, MUX_IN_AUDMUX_P5_INPUT_DB_AMX_SELECT_I, MUX_IN_AUDMUX_P5_INPUT_RXCLK_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P5_INPUT_RXFS_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P5_INPUT_TXCLK_AMX_SELECT_INPUT, MUX_IN_AUDMUX_P5_INPUT_TXFS_AMX_SELECT_INPUT, MUX_IN_CAN1_IPP_IND_CANRX_SELECT_INPUT, /*0x760*/ MUX_IN_CAN2_IPP_IND_CANRX_SELECT_INPUT, MUX_IN_CCM_IPP_ASRC_EXT_SELECT_INPUT, MUX_IN_CCM_IPP_DI1_CLK_SELECT_INPUT, MUX_IN_CCM_PLL1_BYPASS_CLK_SELECT_INPUT, MUX_IN_CCM_PLL2_BYPASS_CLK_SELECT_INPUT, MUX_IN_CCM_PLL3_BYPASS_CLK_SELECT_INPUT, MUX_IN_CCM_PLL4_BYPASS_CLK_SELECT_INPUT, MUX_IN_CSPI_IPP_CSPI_CLK_IN_SELECT_INPUT, /*0x780*/ MUX_IN_CSPI_IPP_IND_MISO_SELECT_INPUT, MUX_IN_CSPI_IPP_IND_MOSI_SELECT_INPUT, MUX_IN_CSPI_IPP_IND_SS_B_1_SELECT_INPUT, MUX_IN_CSPI_IPP_IND_SS_B_2_SELECT_INPUT, MUX_IN_CSPI_IPP_IND_SS_B_3_SELECT_INPUT, MUX_IN_CSPI_IPP_IND_SS_B_4_SELECT_INPUT, MUX_IN_ECSPI1_IPP_CSPI_CLK_IN_SELECT_INPUT, MUX_IN_ECSPI1_IPP_IND_MISO_SELECT_INPUT, MUX_IN_ECSPI1_IPP_IND_MOSI_SELECT_INPUT, MUX_IN_ECSPI1_IPP_IND_SS_B_1_SELECT_INPUT, MUX_IN_ECSPI1_IPP_IND_SS_B_2_SELECT_INPUT, MUX_IN_ECSPI1_IPP_IND_SS_B_3_SELECT_INPUT, /*0x7B0*/ MUX_IN_ECSPI1_IPP_IND_SS_B_4_SELECT_INPUT, MUX_IN_ECSPI2_IPP_CSPI_CLK_IN_SELECT_INPUT, MUX_IN_ECSPI2_IPP_IND_MISO_SELECT_INPUT, MUX_IN_ECSPI2_IPP_IND_MOSI_SELECT_INPUT, MUX_IN_ECSPI2_IPP_IND_SS_B_1_SELECT_INPUT, MUX_IN_ECSPI2_IPP_IND_SS_B_2_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_FSR_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_FST_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_HCKR_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_HCKT_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SCKR_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SCKT_SELECT_INPUT, /*0x7E0*/ MUX_IN_ESAI1_IPP_IND_SDO0_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SDO1_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SDO2_SDI3_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SDO3_SDI2_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SDO4_SDI1_SELECT_INPUT, MUX_IN_ESAI1_IPP_IND_SDO5_SDI0_SELECT_INPUT, MUX_IN_ESDHC1_IPP_WP_ON_SELECT_INPUT, MUX_IN_FEC_FEC_COL_SELECT_INPUT, /*0x800*/ MUX_IN_FEC_FEC_MDI_SELECT_INPUT, MUX_IN_FEC_FEC_RX_CLK_SELECT_INPUT, MUX_IN_FIRI_IPP_IND_RXD_SELECT_INPUT, MUX_IN_GPC_PMIC_RDY_SELECT_INPUT, MUX_IN_I2C1_IPP_SCL_IN_SELECT_INPUT, MUX_IN_I2C1_IPP_SDA_IN_SELECT_INPUT, MUX_IN_I2C2_IPP_SCL_IN_SELECT_INPUT, MUX_IN_I2C2_IPP_SDA_IN_SELECT_INPUT, MUX_IN_I2C3_IPP_SCL_IN_SELECT_INPUT, MUX_IN_I2C3_IPP_SDA_IN_SELECT_INPUT, MUX_IN_IPU_IPP_DI_0_IND_DISPB_SD_D_SELECT_INPUT, MUX_IN_IPU_IPP_DI_1_IND_DISPB_SD_D_SELECT_INPUT, MUX_IN_IPU_IPP_IND_SENS1_DATA_EN_SELECT_INPUT, MUX_IN_IPU_IPP_IND_SENS1_HSYNC_SELECT_INPUT, MUX_IN_IPU_IPP_IND_SENS1_VSYNC_SELECT_INPUT, MUX_IN_KPP_IPP_IND_COL_5_SELECT_INPUT, /*0x840*/ MUX_IN_KPP_IPP_IND_COL_6_SELECT_INPUT, MUX_IN_KPP_IPP_IND_COL_7_SELECT_INPUT, MUX_IN_KPP_IPP_IND_ROW_5_SELECT_INPUT, MUX_IN_KPP_IPP_IND_ROW_6_SELECT_INPUT, MUX_IN_KPP_IPP_IND_ROW_7_SELECT_INPUT, MUX_IN_MLB_MLBCLK_IN_SELECT_INPUT, MUX_IN_MLB_MLBDAT_IN_SELECT_INPUT, MUX_IN_MLB_MLBSIG_IN_SELECT_INPUT, MUX_IN_OWIRE_BATTERY_LINE_IN_SELECT_INPUT, MUX_IN_SDMA_EVENTS_14_SELECT_INPUT, MUX_IN_SDMA_EVENTS_15_SELECT_INPUT, MUX_IN_SPDIF_SPDIF_IN1_SELECT_INPUT, /*0x870*/ MUX_IN_UART1_IPP_UART_RTS_B_SELECT_INPUT, MUX_IN_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, MUX_IN_UART2_IPP_UART_RTS_B_SELECT_INPUT, MUX_IN_UART2_IPP_UART_RXD_MUX_SELECT_INPUT, MUX_IN_UART3_IPP_UART_RTS_B_SELECT_INPUT, MUX_IN_UART3_IPP_UART_RXD_MUX_SELECT_INPUT, MUX_IN_UART4_IPP_UART_RTS_B_SELECT_INPUT, MUX_IN_UART4_IPP_UART_RXD_MUX_SELECT_INPUT, MUX_IN_UART5_IPP_UART_RTS_B_SELECT_INPUT, MUX_IN_UART5_IPP_UART_RXD_MUX_SELECT_INPUT, MUX_IN_USBOH3_IPP_IND_OTG_OC_SELECT_INPUT, MUX_IN_USBOH3_IPP_IND_UH1_OC_SELECT_INPUT, MUX_IN_USBOH3_IPP_IND_UH2_OC_SELECT_INPUT, } iomux_input_select_t; /*! * various IOMUX input functions */ 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_config_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 config config as defined in \b #iomux_pin_ocfg_t * * @return 0 if successful; Non-zero otherwise */ int mxc_request_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t config); /*! * Release ownership for an IO pin * * @param pin a name defined by \b iomux_pin_name_t * @param config config as defined in \b #iomux_pin_ocfg_t */ void mxc_free_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t config); /*! * 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 gets the current pad value for a IOMUX pin. * * @param pin a pin number as defined in \b #iomux_pin_name_t * @return current pad value */ unsigned int mxc_iomux_get_pad(iomux_pin_name_t pin); /*! * 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_config_t */ void mxc_iomux_set_input(iomux_input_select_t input, u32 config); #endif /* __MACH_MX53_IOMUX_H__ */