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https://github.com/AsahiLinux/u-boot
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194 lines
7.5 KiB
C
194 lines
7.5 KiB
C
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/*
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* (C) Copyright 2008-2009 Freescale Semiconductor, Inc.
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#ifndef __MACH_MX51_IOMUX_H__
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#define __MACH_MX51_IOMUX_H__
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#include <common.h>
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#include <asm/io.h>
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#include <asm/arch/imx-regs.h>
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#include <asm/arch/mx51_pins.h>
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typedef unsigned int iomux_pin_name_t;
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/* various IOMUX output functions */
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typedef enum iomux_config {
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IOMUX_CONFIG_ALT0, /*!< used as alternate function 0 */
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IOMUX_CONFIG_ALT1, /*!< used as alternate function 1 */
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IOMUX_CONFIG_ALT2, /*!< used as alternate function 2 */
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IOMUX_CONFIG_ALT3, /*!< used as alternate function 3 */
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IOMUX_CONFIG_ALT4, /*!< used as alternate function 4 */
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IOMUX_CONFIG_ALT5, /*!< used as alternate function 5 */
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IOMUX_CONFIG_ALT6, /*!< used as alternate function 6 */
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IOMUX_CONFIG_ALT7, /*!< used as alternate function 7 */
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IOMUX_CONFIG_GPIO, /*!< added to help user use GPIO mode */
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IOMUX_CONFIG_SION = 0x1 << 4, /*!< used as LOOPBACK:MUX SION bit */
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} iomux_pin_cfg_t;
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/* various IOMUX pad functions */
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typedef enum iomux_pad_config {
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PAD_CTL_SRE_SLOW = 0x0 << 0, /* Slow slew rate */
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PAD_CTL_SRE_FAST = 0x1 << 0, /* Fast slew rate */
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PAD_CTL_DRV_LOW = 0x0 << 1, /* Low drive strength */
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PAD_CTL_DRV_MEDIUM = 0x1 << 1, /* Medium drive strength */
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PAD_CTL_DRV_HIGH = 0x2 << 1, /* High drive strength */
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PAD_CTL_DRV_MAX = 0x3 << 1, /* Max drive strength */
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PAD_CTL_ODE_OPENDRAIN_NONE = 0x0 << 3, /* Opendrain disable */
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PAD_CTL_ODE_OPENDRAIN_ENABLE = 0x1 << 3,/* Opendrain enable */
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PAD_CTL_100K_PD = 0x0 << 4, /* 100Kohm pulldown */
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PAD_CTL_47K_PU = 0x1 << 4, /* 47Kohm pullup */
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PAD_CTL_100K_PU = 0x2 << 4, /* 100Kohm pullup */
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PAD_CTL_22K_PU = 0x3 << 4, /* 22Kohm pullup */
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PAD_CTL_PUE_KEEPER = 0x0 << 6, /* enable pulldown */
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PAD_CTL_PUE_PULL = 0x1 << 6, /* enable pullup */
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PAD_CTL_PKE_NONE = 0x0 << 7, /* Disable pullup/pulldown */
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PAD_CTL_PKE_ENABLE = 0x1 << 7, /* Enable pullup/pulldown */
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PAD_CTL_HYS_NONE = 0x0 << 8, /* Hysteresis disabled */
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PAD_CTL_HYS_ENABLE = 0x1 << 8, /* Hysteresis enabled */
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PAD_CTL_DDR_INPUT_CMOS = 0x0 << 9,/* DDR input CMOS */
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PAD_CTL_DDR_INPUT_DDR = 0x1 << 9,/* DDR input DDR */
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PAD_CTL_DRV_VOT_LOW = 0x0 << 13, /* Low voltage mode */
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PAD_CTL_DRV_VOT_HIGH = 0x1 << 13,/* High voltage mode */
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} iomux_pad_config_t;
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/* various IOMUX input select register index */
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typedef enum iomux_input_select {
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MUX_IN_AUDMUX_P4_INPUT_DA_AMX_SELECT_I = 0,
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MUX_IN_AUDMUX_P4_INPUT_DB_AMX_SELECT_I,
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MUX_IN_AUDMUX_P4_INPUT_TXCLK_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P4_INPUT_TXFS_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P5_INPUT_DA_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P5_INPUT_DB_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P5_INPUT_RXCLK_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P5_INPUT_RXFS_AMX_SELECT,
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MUX_IN_AUDMUX_P5_INPUT_TXCLK_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P5_INPUT_TXFS_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P6_INPUT_DA_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P6_INPUT_DB_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P6_INPUT_RXCLK_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P6_INPUT_RXFS_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P6_INPUT_TXCLK_AMX_SELECT_INPUT,
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MUX_IN_AUDMUX_P6_INPUT_TXFS_AMX_SELECT_INPUT,
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MUX_IN_CCM_IPP_DI_CLK_SELECT_INPUT,
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/* TO2 */
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MUX_IN_CCM_IPP_DI1_CLK_SELECT_INPUT,
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MUX_IN_CCM_PLL1_BYPASS_CLK_SELECT_INPUT,
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MUX_IN_CCM_PLL2_BYPASS_CLK_SELECT_INPUT,
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MUX_IN_CSPI_IPP_CSPI_CLK_IN_SELECT_INPUT,
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MUX_IN_CSPI_IPP_IND_MISO_SELECT_INPUT,
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MUX_IN_CSPI_IPP_IND_MOSI_SELECT_INPUT,
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MUX_IN_CSPI_IPP_IND_SS_B_1_SELECT_INPUT,
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MUX_IN_CSPI_IPP_IND_SS_B_2_SELECT_INPUT,
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MUX_IN_CSPI_IPP_IND_SS_B_3_SELECT_INPUT,
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MUX_IN_DPLLIP1_L1T_TOG_EN_SELECT_INPUT,
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/* TO2 */
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MUX_IN_ECSPI2_IPP_IND_SS_B_1_SELECT_INPUT,
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MUX_IN_ECSPI2_IPP_IND_SS_B_3_SELECT_INPUT,
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MUX_IN_EMI_IPP_IND_RDY_INT_SELECT_INPUT,
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MUX_IN_ESDHC3_IPP_DAT0_IN_SELECT_INPUT,
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MUX_IN_ESDHC3_IPP_DAT1_IN_SELECT_INPUT,
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MUX_IN_ESDHC3_IPP_DAT2_IN_SELECT_INPUT,
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MUX_IN_ESDHC3_IPP_DAT3_IN_SELECT_INPUT,
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MUX_IN_FEC_FEC_COL_SELECT_INPUT,
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MUX_IN_FEC_FEC_CRS_SELECT_INPUT,
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MUX_IN_FEC_FEC_MDI_SELECT_INPUT,
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MUX_IN_FEC_FEC_RDATA_0_SELECT_INPUT,
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MUX_IN_FEC_FEC_RDATA_1_SELECT_INPUT,
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MUX_IN_FEC_FEC_RDATA_2_SELECT_INPUT,
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MUX_IN_FEC_FEC_RDATA_3_SELECT_INPUT,
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MUX_IN_FEC_FEC_RX_CLK_SELECT_INPUT,
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MUX_IN_FEC_FEC_RX_DV_SELECT_INPUT,
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MUX_IN_FEC_FEC_RX_ER_SELECT_INPUT,
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MUX_IN_FEC_FEC_TX_CLK_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_1_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_2_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_3_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_4_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_5_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_6_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_7_SELECT_INPUT,
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MUX_IN_GPIO3_IPP_IND_G_IN_8_SELECT_INPUT,
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/* TO2 */
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MUX_IN_GPIO3_IPP_IND_G_IN_12_SELECT_INPUT,
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MUX_IN_HSC_MIPI_MIX_IPP_IND_SENS1_DATA_EN_SELECT_INPUT,
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MUX_IN_HSC_MIPI_MIX_IPP_IND_SENS2_DATA_EN_SELECT_INPUT,
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/* TO2 */
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MUX_IN_HSC_MIPI_MIX_PAR_VSYNC_SELECT_INPUT,
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/* TO2 */
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MUX_IN_HSC_MIPI_MIX_PAR_DI_WAIT_SELECT_INPUT,
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MUX_IN_HSC_MIPI_MIX_PAR_SISG_TRIG_SELECT_INPUT,
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MUX_IN_I2C1_IPP_SCL_IN_SELECT_INPUT,
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MUX_IN_I2C1_IPP_SDA_IN_SELECT_INPUT,
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MUX_IN_I2C2_IPP_SCL_IN_SELECT_INPUT,
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MUX_IN_I2C2_IPP_SDA_IN_SELECT_INPUT,
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MUX_IN_IPU_IPP_DI_0_IND_DISPB_SD_D_SELECT_INPUT,
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MUX_IN_IPU_IPP_DI_1_IND_DISPB_SD_D_SELECT_INPUT,
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MUX_IN_KPP_IPP_IND_COL_6_SELECT_INPUT,
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MUX_IN_KPP_IPP_IND_COL_7_SELECT_INPUT,
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MUX_IN_KPP_IPP_IND_ROW_4_SELECT_INPUT,
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MUX_IN_KPP_IPP_IND_ROW_5_SELECT_INPUT,
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MUX_IN_KPP_IPP_IND_ROW_6_SELECT_INPUT,
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MUX_IN_KPP_IPP_IND_ROW_7_SELECT_INPUT,
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MUX_IN_UART1_IPP_UART_RTS_B_SELECT_INPUT,
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MUX_IN_UART1_IPP_UART_RXD_MUX_SELECT_INPUT,
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MUX_IN_UART2_IPP_UART_RTS_B_SELECT_INPUT,
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MUX_IN_UART2_IPP_UART_RXD_MUX_SELECT_INPUT,
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MUX_IN_UART3_IPP_UART_RTS_B_SELECT_INPUT,
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MUX_IN_UART3_IPP_UART_RXD_MUX_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_CLK_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_0_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_1_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_2_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_3_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_4_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_5_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_6_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DATA_7_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_DIR_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_NXT_SELECT_INPUT,
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MUX_IN_USBOH3_IPP_IND_UH3_STP_SELECT_INPUT,
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MUX_INPUT_NUM_MUX,
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} iomux_input_select_t;
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/* various IOMUX input functions */
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typedef enum iomux_input_config {
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INPUT_CTL_PATH0 = 0x0,
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INPUT_CTL_PATH1,
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INPUT_CTL_PATH2,
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INPUT_CTL_PATH3,
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INPUT_CTL_PATH4,
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INPUT_CTL_PATH5,
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INPUT_CTL_PATH6,
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INPUT_CTL_PATH7,
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} iomux_input_config_t;
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void mxc_request_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t config);
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void mxc_free_iomux(iomux_pin_name_t pin, iomux_pin_cfg_t config);
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void mxc_iomux_set_pad(iomux_pin_name_t pin, u32 config);
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unsigned int mxc_iomux_get_pad(iomux_pin_name_t pin);
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void mxc_iomux_set_input(iomux_input_select_t input, u32 config);
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#endif /* __MACH_MX51_IOMUX_H__ */
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