diff options
Diffstat (limited to 'arch/arm/mach-mx5/mx50_arm2_gpio.c')
| -rw-r--r-- | arch/arm/mach-mx5/mx50_arm2_gpio.c | 658 |
1 files changed, 658 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/mx50_arm2_gpio.c b/arch/arm/mach-mx5/mx50_arm2_gpio.c new file mode 100644 index 000000000000..8b37784ef9b5 --- /dev/null +++ b/arch/arm/mach-mx5/mx50_arm2_gpio.c @@ -0,0 +1,658 @@ +/* + * 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. + */ + +#include <linux/errno.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/delay.h> +#include <linux/io.h> +#include <mach/hardware.h> +#include <mach/gpio.h> + +#include "iomux.h" +#include "mx50_pins.h" + +/*! + * @file mach-mx5/mx50_arm2_gpio.c + * + * @brief This file contains all the GPIO setup functions for the board. + * + * @ingroup GPIO + */ + +static struct mxc_iomux_pin_cfg __initdata mxc_iomux_pins[] = { + { /* SD1 WP */ + MX50_PIN_ECSPI2_SS0, IOMUX_CONFIG_GPIO, + }, + { /* SD1 CD */ + MX50_PIN_EIM_CRE, IOMUX_CONFIG_GPIO, + }, + { /* SD1 CMD */ + MX50_PIN_SD1_CMD, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD1 CLK */ + MX50_PIN_SD1_CLK, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD1 D0 */ + MX50_PIN_SD1_D0, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD1 D1 */ + MX50_PIN_SD1_D1, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD1 D2 */ + MX50_PIN_SD1_D2, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD1 D3 */ + MX50_PIN_SD1_D3, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 CD */ + MX50_PIN_SD2_CD, IOMUX_CONFIG_GPIO, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 WP */ + MX50_PIN_SD2_WP, IOMUX_CONFIG_GPIO, + }, + { /* SD2 CMD */ + MX50_PIN_SD2_CMD, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 CLK */ + MX50_PIN_SD2_CLK, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D0 */ + MX50_PIN_SD2_D0, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D1 */ + MX50_PIN_SD2_D1, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D2 */ + MX50_PIN_SD2_D2, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D3 */ + MX50_PIN_SD2_D3, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D4 */ + MX50_PIN_SD2_D4, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D5 */ + MX50_PIN_SD2_D5, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D6 */ + MX50_PIN_SD2_D6, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD2 D7 */ + MX50_PIN_SD2_D7, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD3 CD */ + MX50_PIN_KEY_COL2, IOMUX_CONFIG_GPIO, + (PAD_CTL_DRV_HIGH | PAD_CTL_75k_PU | PAD_CTL_SRE_FAST), + }, + { /* SD3 WP */ + MX50_PIN_SD3_WP, IOMUX_CONFIG_GPIO, + }, + { /* SD3 CMD */ + MX50_PIN_SD3_CMD, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_100K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 CLK */ + MX50_PIN_SD3_CLK, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | PAD_CTL_47K_PU | + PAD_CTL_DRV_HIGH), + }, + { /* SD3 D0 */ + MX50_PIN_SD3_D0, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D1 */ + MX50_PIN_SD3_D1, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D2 */ + MX50_PIN_SD3_D2, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D3 */ + MX50_PIN_SD3_D3, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D4 */ + MX50_PIN_SD3_D4, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D5 */ + MX50_PIN_SD3_D5, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D6 */ + MX50_PIN_SD3_D6, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + { /* SD3 D7 */ + MX50_PIN_SD3_D7, IOMUX_CONFIG_ALT0, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_47K_PU | PAD_CTL_DRV_HIGH), + }, + + { + MX50_PIN_SSI_TXD, IOMUX_CONFIG_ALT0, + }, + { + MX50_PIN_SSI_RXD, IOMUX_CONFIG_ALT0, + }, + { + MX50_PIN_SSI_TXC, IOMUX_CONFIG_ALT0, + }, + { + MX50_PIN_SSI_TXFS, IOMUX_CONFIG_ALT0, + }, + /* LINE1_DETECT (headphone detect) */ + { + MX50_PIN_ECSPI1_SS0, IOMUX_CONFIG_GPIO, PAD_CTL_100K_PU, + }, + { + MX50_PIN_ECSPI2_MISO, IOMUX_CONFIG_GPIO, PAD_CTL_100K_PU, + }, + /* UART pad setting */ + { + MX50_PIN_UART1_TXD, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + }, + { + MX50_PIN_UART1_RXD, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + MUX_IN_UART1_IPP_UART_RXD_MUX_SELECT_INPUT, + INPUT_CTL_PATH1, + }, + { + MX50_PIN_UART1_CTS, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + }, + { + MX50_PIN_UART1_RTS, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + MUX_IN_UART1_IPP_UART_RTS_B_SELECT_INPUT, + INPUT_CTL_PATH1, + }, + { + MX50_PIN_UART2_TXD, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + }, + { + MX50_PIN_UART2_RXD, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + MUX_IN_UART2_IPP_UART_RXD_MUX_SELECT_INPUT, + INPUT_CTL_PATH1, + }, + { + MX50_PIN_UART2_CTS, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + }, + { + MX50_PIN_UART2_RTS, IOMUX_CONFIG_ALT0, + (PAD_CTL_DRV_HIGH | PAD_CTL_PUE_KEEPER | + PAD_CTL_PKE_ENABLE | PAD_CTL_ODE_OPENDRAIN_NONE), + MUX_IN_UART2_IPP_UART_RTS_B_SELECT_INPUT, + INPUT_CTL_PATH1, + }, + { /* I2C1 SDA */ + MX50_PIN_I2C1_SDA, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | + PAD_CTL_HYS_ENABLE), + }, + { /* I2C1 SCL */ + MX50_PIN_I2C1_SCL, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | + PAD_CTL_HYS_ENABLE), + }, + { /* I2C2 SDA */ + MX50_PIN_I2C2_SDA, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | + PAD_CTL_HYS_ENABLE), + }, + { /* I2C2 SCL */ + MX50_PIN_I2C2_SCL, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | + PAD_CTL_HYS_ENABLE), + }, + { /* I2C3 SDA */ + MX50_PIN_I2C3_SDA, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | + PAD_CTL_HYS_ENABLE), + }, + { /* I2C3 SCL */ + MX50_PIN_I2C3_SCL, IOMUX_CONFIG_ALT0 | IOMUX_CONFIG_SION, + (PAD_CTL_SRE_FAST | PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | PAD_CTL_100K_PU | + PAD_CTL_HYS_ENABLE), + }, + /* EPDC pins */ + { /* EPDC D0 */ + MX50_PIN_EPDC_D0, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D1 */ + MX50_PIN_EPDC_D1, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D2 */ + MX50_PIN_EPDC_D2, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D3 */ + MX50_PIN_EPDC_D3, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D4 */ + MX50_PIN_EPDC_D4, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D5 */ + MX50_PIN_EPDC_D5, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D6 */ + MX50_PIN_EPDC_D6, IOMUX_CONFIG_ALT0, + }, + { /* EPDC D7 */ + MX50_PIN_EPDC_D7, IOMUX_CONFIG_ALT0, + }, + { /* EPDC GDCLK */ + MX50_PIN_EPDC_GDCLK, IOMUX_CONFIG_ALT0, + }, + { /* EPDC GDSP */ + MX50_PIN_EPDC_GDSP, IOMUX_CONFIG_ALT0, + }, + { /* EPDC GDOE */ + MX50_PIN_EPDC_GDOE, IOMUX_CONFIG_ALT0, + }, + { /* EPDC GDRL */ + MX50_PIN_EPDC_GDRL, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDCLK */ + MX50_PIN_EPDC_SDCLK, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDOE */ + MX50_PIN_EPDC_SDOE, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDLE */ + MX50_PIN_EPDC_SDLE, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDSHR */ + MX50_PIN_EPDC_SDSHR, IOMUX_CONFIG_ALT0, + }, + { /* EPDC BDR0 */ + MX50_PIN_EPDC_BDR0, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDCE0 */ + MX50_PIN_EPDC_SDCE0, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDCE1 */ + MX50_PIN_EPDC_SDCE1, IOMUX_CONFIG_ALT0, + }, + { /* EPDC SDCE2 */ + MX50_PIN_EPDC_SDCE2, IOMUX_CONFIG_ALT0, + }, + /* EPD PMIC pins */ + { /* EPDC PWRSTAT - GPIO3[28] for PWR_GOOD status */ + MX50_PIN_EPDC_PWRSTAT, IOMUX_CONFIG_ALT1, + }, + { /* EPDC VCOM0 - GPIO4[21] for VCOM control */ + MX50_PIN_EPDC_VCOM0, IOMUX_CONFIG_ALT1, + }, + { /* ELCDIF D8 */ + MX50_PIN_DISP_D8, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D9 */ + MX50_PIN_DISP_D9, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D10 */ + MX50_PIN_DISP_D10, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D11 */ + MX50_PIN_DISP_D11, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D12 */ + MX50_PIN_DISP_D12, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D13 */ + MX50_PIN_DISP_D13, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D14 */ + MX50_PIN_DISP_D14, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF D15 */ + MX50_PIN_DISP_D15, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF VSYNC */ + MX50_PIN_DISP_RS, IOMUX_CONFIG_ALT2, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF contrast */ + MX50_PIN_DISP_BUSY, IOMUX_CONFIG_ALT1, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF HSYNC */ + MX50_PIN_DISP_CS, IOMUX_CONFIG_ALT2, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF DRDY */ + MX50_PIN_DISP_RD, IOMUX_CONFIG_ALT2, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* ELCDIF PIXCLK */ + MX50_PIN_DISP_WR, IOMUX_CONFIG_ALT2, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_KEEPER | + PAD_CTL_ODE_OPENDRAIN_NONE | PAD_CTL_DRV_HIGH), + }, + { /* UART4 TXD - GPIO6[16] for EPD PMIC WAKEUP */ + MX50_PIN_UART4_TXD, IOMUX_CONFIG_ALT1, + }, + { /* UART4 RXD - GPIO6[17] for EPD PMIC intr */ + MX50_PIN_UART4_RXD, IOMUX_CONFIG_ALT1, + }, + /* USB_H1_PWR */ + { + MX50_PIN_EPITO, IOMUX_CONFIG_ALT2, + PAD_CTL_PKE_ENABLE | PAD_CTL_DRV_HIGH, + }, + /* FIXME: USB_H1_OC, need to comment below line if + * one needs to debug owire. + */ + { + MX50_PIN_OWIRE, IOMUX_CONFIG_ALT2, + PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | PAD_CTL_DRV_HIGH | PAD_CTL_47K_PU, + }, + /* USB_OTG_PWR */ + { + MX50_PIN_PWM2, IOMUX_CONFIG_ALT2, + PAD_CTL_PKE_ENABLE | PAD_CTL_DRV_HIGH, + }, + /* + * Set USB_OTG_OC, the pad value is the default value + * according to IC suggestion. + */ + { + MX50_PIN_PWM1, IOMUX_CONFIG_ALT2, + PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | PAD_CTL_DRV_HIGH | PAD_CTL_47K_PU, + MUX_IN_USBOH1_IPP_IND_OTG_OC_SELECT_INPUT, INPUT_CTL_PATH1, + }, + { /* FEC_MDIO */ + MX50_PIN_SSI_RXC, IOMUX_CONFIG_ALT6, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_22K_PU | PAD_CTL_ODE_OPENDRAIN_ENABLE | PAD_CTL_DRV_HIGH), + MUX_IN_FEC_FEC_MDI_SELECT_INPUT, + INPUT_CTL_PATH1, + }, + { /* FEC_TX_CLK */ + MX50_PIN_DISP_D0, IOMUX_CONFIG_ALT2, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE), + }, + { /* FEC_RX_ER */ + MX50_PIN_DISP_D1, IOMUX_CONFIG_ALT2, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE), + MUX_IN_FEC_FEC_RX_ER_SELECT_INPUT, + INPUT_CTL_PATH0, + }, + { /* FEC_CRS_DV */ + MX50_PIN_DISP_D2, IOMUX_CONFIG_ALT2, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE), + MUX_IN_FEC_FEC_RX_DV_SELECT_INPUT, + INPUT_CTL_PATH0, + }, + { /* FEC_RXD1 */ + MX50_PIN_DISP_D3, IOMUX_CONFIG_ALT2, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE), + MUX_IN_FEC_FEC_RDATA_1_SELECT_INPUT, + INPUT_CTL_PATH0, + }, + { /* FEC_RXD0 */ + MX50_PIN_DISP_D4, IOMUX_CONFIG_ALT2, + (PAD_CTL_HYS_ENABLE | PAD_CTL_PKE_ENABLE), + MUX_IN_FEC_FEC_RDATA_0_SELECT_INPUT, + INPUT_CTL_PATH0, + }, + { /* FEC_TX_EN */ + MX50_PIN_DISP_D5, IOMUX_CONFIG_ALT2, + PAD_CTL_DRV_HIGH, + }, + { /* FEC_TXD1 */ + MX50_PIN_DISP_D6, IOMUX_CONFIG_ALT2, + PAD_CTL_DRV_HIGH, + }, + { /* FEC_TXD0 */ + MX50_PIN_DISP_D7, IOMUX_CONFIG_ALT2, + PAD_CTL_DRV_HIGH, + }, + { /* FEC_MDC */ + MX50_PIN_SSI_RXFS, IOMUX_CONFIG_ALT6, + PAD_CTL_DRV_HIGH, + }, + { /* CSPI SS0 */ + MX50_PIN_CSPI_SS0, IOMUX_CONFIG_ALT0, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | PAD_CTL_DRV_HIGH), + }, + { /* CSPI SS1 */ + MX50_PIN_ECSPI1_MOSI, IOMUX_CONFIG_ALT2, + (PAD_CTL_PKE_ENABLE | PAD_CTL_PUE_PULL | + PAD_CTL_22K_PU | PAD_CTL_DRV_HIGH), + }, + { + MX50_PIN_CSPI_MOSI, IOMUX_CONFIG_ALT0, + }, + { + MX50_PIN_CSPI_MISO, IOMUX_CONFIG_ALT0, + }, + { + MX50_PIN_CSPI_SCLK, IOMUX_CONFIG_ALT0, + }, +}; + +static int __initdata enable_w1 = { 0 }; +static int __init w1_setup(char *__unused) +{ + enable_w1 = 1; + return cpu_is_mx50(); +} + +__setup("w1", w1_setup); + +void __init mx50_arm2_io_init(void) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(mxc_iomux_pins); i++) { + mxc_request_iomux(mxc_iomux_pins[i].pin, + mxc_iomux_pins[i].mux_mode); + if (mxc_iomux_pins[i].pad_cfg) + mxc_iomux_set_pad(mxc_iomux_pins[i].pin, + mxc_iomux_pins[i].pad_cfg); + if (mxc_iomux_pins[i].in_select) + mxc_iomux_set_input(mxc_iomux_pins[i].in_select, + mxc_iomux_pins[i].in_mode); + } + + /* SD1 WP */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_ECSPI2_SS0), "ecspi2_ss0"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_ECSPI2_SS0)); + + /* SD1 CD */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_EIM_CRE), "eim_cre"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_EIM_CRE)); + + /* SD2 WP */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_SD2_WP), "sd2_wp"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_SD2_WP)); + + /* SD2 CD */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_SD2_CD), "sd2_cd"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_SD2_CD)); + + /* SD3 WP */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_SD3_WP), "sd3_wp"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_SD2_WP)); + + /* SD3 CD */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_KEY_COL2), "key_col2"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_KEY_COL2)); + + /* LINE1_DETECT (headphone detect) */ + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_ECSPI1_SS0)); + + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_ECSPI2_MISO)); + + /* EPDC PMIC */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_UART4_TXD), "uart4_txd"); + gpio_direction_output(IOMUX_TO_GPIO(MX50_PIN_UART4_TXD), 0); + + gpio_request(IOMUX_TO_GPIO(MX50_PIN_EPDC_VCOM0), "epdc_vcom"); + gpio_direction_output(IOMUX_TO_GPIO(MX50_PIN_EPDC_VCOM0), 0); + + gpio_request(IOMUX_TO_GPIO(MX50_PIN_UART4_RXD), "uart4_rxd"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_UART4_RXD)); + + gpio_request(IOMUX_TO_GPIO(MX50_PIN_EPDC_PWRSTAT), "epdc_pwrstat"); + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_EPDC_PWRSTAT)); + + /* ELCDIF backlight */ + gpio_request(IOMUX_TO_GPIO(MX50_PIN_DISP_BUSY), "gp2_18"); + gpio_direction_output(IOMUX_TO_GPIO(MX50_PIN_DISP_BUSY), 1); + + if (enable_w1) { + /* OneWire */ + mxc_request_iomux(MX50_PIN_OWIRE, IOMUX_CONFIG_ALT0); + mxc_iomux_set_pad(MX50_PIN_OWIRE, PAD_CTL_HYS_ENABLE | + PAD_CTL_PKE_ENABLE | + PAD_CTL_ODE_OPENDRAIN_ENABLE | + PAD_CTL_DRV_HIGH | + PAD_CTL_SRE_FAST | + PAD_CTL_100K_PU | + PAD_CTL_PUE_PULL); + } +} + +/* workaround for cspi chipselect pin may not keep correct level when idle */ +void mx50_arm2_gpio_spi_chipselect_active(int cspi_mode, int status, + int chipselect) +{ + switch (cspi_mode) { + case 1: + break; + case 2: + break; + case 3: + switch (chipselect) { + case 0x1: + /* enable ss0 */ + mxc_request_iomux(MX50_PIN_CSPI_SS0, IOMUX_CONFIG_ALT0); + /*disable other ss */ + mxc_request_iomux(MX50_PIN_ECSPI1_MOSI, IOMUX_CONFIG_GPIO); + /* pull up/down deassert it */ + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_ECSPI1_MOSI)); + break; + case 0x2: + /* enable ss1 */ + mxc_request_iomux(MX50_PIN_ECSPI1_MOSI, IOMUX_CONFIG_ALT2); + /*disable other ss */ + mxc_request_iomux(MX50_PIN_CSPI_SS0, IOMUX_CONFIG_GPIO); + /* pull up/down deassert it */ + gpio_direction_input(IOMUX_TO_GPIO(MX50_PIN_CSPI_SS0)); + break; + default: + break; + } + break; + + default: + break; + } +} + +void mx50_arm2_gpio_spi_chipselect_inactive(int cspi_mode, int status, + int chipselect) +{ + switch (cspi_mode) { + case 1: + break; + case 2: + break; + case 3: + switch (chipselect) { + case 0x1: + mxc_free_iomux(MX50_PIN_ECSPI1_MOSI, IOMUX_CONFIG_GPIO); + break; + case 0x2: + mxc_free_iomux(MX50_PIN_CSPI_SS0, IOMUX_CONFIG_GPIO); + break; + default: + break; + } + break; + default: + break; + } + +} |