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/*
* arch/arm/mach-tegra/board-colibri_t20-pinmux.c
*
* Copyright (c) 2011-2014 Toradex, Inc.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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.
*
*/
#include <linux/gpio.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <mach/pinmux.h>
#include "board-colibri_t20.h"
#include "gpio-names.h"
#define DEFAULT_DRIVE(_name) \
{ \
.pingroup = TEGRA_DRIVE_PINGROUP_##_name, \
.hsm = TEGRA_HSM_DISABLE, \
.schmitt = TEGRA_SCHMITT_ENABLE, \
.drive = TEGRA_DRIVE_DIV_1, \
.pull_down = TEGRA_PULL_31, \
.pull_up = TEGRA_PULL_31, \
.slew_rising = TEGRA_SLEW_SLOWEST, \
.slew_falling = TEGRA_SLEW_SLOWEST, \
}
#define SET_DRIVE(_name, _hsm, _schmitt, _drive, _pulldn_drive, _pullup_drive, _pulldn_slew, _pullup_slew) \
{ \
.pingroup = TEGRA_DRIVE_PINGROUP_##_name, \
.hsm = TEGRA_HSM_##_hsm, \
.schmitt = TEGRA_SCHMITT_##_schmitt, \
.drive = TEGRA_DRIVE_##_drive, \
.pull_down = TEGRA_PULL_##_pulldn_drive, \
.pull_up = TEGRA_PULL_##_pullup_drive, \
.slew_rising = TEGRA_SLEW_##_pulldn_slew, \
.slew_falling = TEGRA_SLEW_##_pullup_slew, \
}
static __initdata struct tegra_drive_pingroup_config colibri_t20_drive_pinmux[] = {
DEFAULT_DRIVE(SDIO1),
DEFAULT_DRIVE(VI1),
SET_DRIVE(AO1, DISABLE, ENABLE, DIV_1, 31, 31, FASTEST, FASTEST),
SET_DRIVE(AT1, DISABLE, ENABLE, DIV_1, 31, 31, FASTEST, FASTEST),
SET_DRIVE(DBG, DISABLE, ENABLE, DIV_1, 31, 31, FASTEST, FASTEST),
SET_DRIVE(DDC, DISABLE, ENABLE, DIV_1, 31, 31, FASTEST, FASTEST),
SET_DRIVE(VI2, DISABLE, ENABLE, DIV_1, 31, 31, FASTEST, FASTEST),
};
static __initdata int colibri_t20_gpio_input_pinmux[] = {
/* SODIMM pin 152 tri-stating GMI_CLK as OWR can not be tri-stated */
//currently reserved during board platform GPIO handling
// TEGRA_GPIO_PK1, /* GMI_CLK multiplexed OWR */
/* Camera interface aka video input */
#ifdef COLIBRI_T20_VI
TEGRA_GPIO_PA7, /* SDIO3_CMD multiplexed VI_D6 */
TEGRA_GPIO_PB4, /* SDIO3_DAT3 multiplexed VI_D7 */
#else /* COLIBRI_T20_VI */
TEGRA_GPIO_PL4, /* VI_D6 multiplexed SDIO3_CMD */
TEGRA_GPIO_PL5, /* VI_D7 multiplexed SDIO3_DAT3 */
#endif /* COLIBRI_T20_VI */
/* SODIMM pin 93 RDnWR */
#if 1
TEGRA_GPIO_PW0, /* gated GMI_WR_N multiplexed LCD_CS1_N */
#endif
/* SODIMM pin 44 L_BIAS configured as LCD data enable */
#if 0
TEGRA_GPIO_PJ1, /* LCD_M1 multiplexed LCD_DE */
#else
TEGRA_GPIO_PW1, /* LCD_DE multiplexed LCD_M1 */
#endif
/* SODIMM pin 95 RDY */
#if 1
TEGRA_GPIO_PI7, /* GMI_IORDY multiplexed GMI_WAIT */
#else
TEGRA_GPIO_PI5, /* GMI_WAIT multiplexed GMI_IORDY */
#endif
/* SODIMM pin 99 nPWE */
#if defined(CONFIG_CAN_SJA1000) || defined(CONFIG_CAN_SJA1000_MODULE)
TEGRA_GPIO_PZ3, /* gated GMI_WR_N multiplexed LCD_WR_N */
#endif
/* 24-bit LCD lines */
#if 0
TEGRA_GPIO_PM2, /* SPI2_CS0_N multiplexed LCD_D18 */
TEGRA_GPIO_PM3, /* SPI2_SCK multiplexed LCD_D19 */
TEGRA_GPIO_PM4, /* SPI2_MISO multiplexed LCD_D20 */
TEGRA_GPIO_PM5, /* SPI2_MOSI multiplexed LCD_D21 */
TEGRA_GPIO_PM6, /* DAP2_DOUT multiplexed LCD_D22 */
TEGRA_GPIO_PM7, /* DAP2_DIN multiplexed LCD_D23 */
#else
TEGRA_GPIO_PX3, /* LCD_D18 multiplexed SPI2_CS0_N */
TEGRA_GPIO_PX2, /* LCD_D19 multiplexed SPI2_SCK */
TEGRA_GPIO_PX1, /* LCD_D20 multiplexed SPI2_MISO */
TEGRA_GPIO_PX0, /* LCD_D21 multiplexed SPI2_MOSI */
TEGRA_GPIO_PA5, /* LCD_D22 multiplexed DAP2_DOUT */
TEGRA_GPIO_PA4, /* LCD_D23 multiplexed DAP2_DIN */
#endif
};
static __initdata struct tegra_pingroup_config colibri_t20_pinmux[] = {
/* tegra_pingroup tegra_mux_func tegra_pullupdown tegra_tristate
TRISTATE here means output driver is tri-stated, even configuring GPIO function won't override this.
Tristating would significantly reduce I/O power consumption. */
/* nRESET_OUT de-asserted further down below, GPIO I3, I4 and I6 */
{TEGRA_PINGROUP_ATA, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_ATB, TEGRA_MUX_SDIO4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* nCSx, AD0, AD1, AD2, AD3, AD4, AD5, AD6 and AD7, nWR, nOE, GPIO K0, K1, K2, K3 and K4 */
{TEGRA_PINGROUP_ATC, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* AD8, AD9, AD10 and AD11 */
{TEGRA_PINGROUP_ATD, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* AD12, AD13, AD14 and AD15 */
{TEGRA_PINGROUP_ATE, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* WM9715L XTL_IN */
//audio sync clk could be either AC97 or PLLA_OUT0
//SYNC_CLK_DOUBLER_ENB: Enable audio sync clk doubler.
// {TEGRA_PINGROUP_CDEV1, TEGRA_MUX_AUDIO_SYNC, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_CDEV1, TEGRA_MUX_PLLA_OUT, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* USB3340 REFCLK */
{TEGRA_PINGROUP_CDEV2, TEGRA_MUX_PLLP_OUT4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* CLK_32K_IN pin pull-up/down control only */
{TEGRA_PINGROUP_CK32, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_CRTP, TEGRA_MUX_CRT, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_CSUS, TEGRA_MUX_VI_SENSOR_CLK,TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO N0, N1, N2 and N3 */
{TEGRA_PINGROUP_DAP1, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO A2 and A3 */
{TEGRA_PINGROUP_DAP2, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_DAP3, TEGRA_MUX_DAP3, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* A13, A14, A15 and A16, GPIO P4, P5, P6 and P7 */
{TEGRA_PINGROUP_DAP4, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* DDC pins pulled up to avoid issues if no FFC cable is connected to X3 */
{TEGRA_PINGROUP_DDC, TEGRA_MUX_I2C2, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
/* Pull-up/down control only */
{TEGRA_PINGROUP_DDRC, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO D5 */
{TEGRA_PINGROUP_DTA, TEGRA_MUX_VI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO T2 and T3 as KEY_FIND */
#ifdef CONFIG_KEYBOARD_GPIO
{TEGRA_PINGROUP_DTB, TEGRA_MUX_VI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
#else
{TEGRA_PINGROUP_DTB, TEGRA_MUX_VI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#endif
{TEGRA_PINGROUP_DTC, TEGRA_MUX_VI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO L0, L1, L2, L3, L6 and L7
GPIO L4 and L5 multiplexed with PWM<A> and PWM<D> */
{TEGRA_PINGROUP_DTD, TEGRA_MUX_VI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* AX88772B V_BUS, WM9715L PENDOWN, GPIO A0, BB4 as KEY_VOLUMEUP and BB5 as KEY_VOLUMEDOWN */
#ifdef CONFIG_KEYBOARD_GPIO
{TEGRA_PINGROUP_DTE, TEGRA_MUX_RSVD, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
#else
{TEGRA_PINGROUP_DTE, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#endif
/* GPIO BB2 as KEY_BACK and BB3 as KEY_HOME */
#ifdef CONFIG_KEYBOARD_GPIO
{TEGRA_PINGROUP_DTF, TEGRA_MUX_I2C3, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
#else
{TEGRA_PINGROUP_DTF, TEGRA_MUX_I2C3, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#endif
{TEGRA_PINGROUP_GMA, TEGRA_MUX_SDIO4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* MM_CD */
{TEGRA_PINGROUP_GMB, TEGRA_MUX_GMI_INT, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
/* BT_TXD, BT_RXD, BT_CTS and BT_RTS, GPIO K7 */
{TEGRA_PINGROUP_GMC, TEGRA_MUX_UARTD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_GMD, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO AA4, AA5, AA6 and AA7 */
#ifndef SDHCI_8BIT
{TEGRA_PINGROUP_GME, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#else
{TEGRA_PINGROUP_GME, TEGRA_MUX_SDIO4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#endif
/* A6, A7, A8, A9, A10, A11 and A12, GPIO U6 */
{TEGRA_PINGROUP_GPU, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_GPU7, TEGRA_MUX_RTCK, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* AX88772B RESET_N and EXTWAKEUP_N */
{TEGRA_PINGROUP_GPV, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* HDMI HOTPLUG_DETECT */
{TEGRA_PINGROUP_HDINT, TEGRA_MUX_HDMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_I2CP, TEGRA_MUX_I2C, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* A0 */
{TEGRA_PINGROUP_IRRX, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* A1 */
{TEGRA_PINGROUP_IRTX, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_KBCA, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_KBCB, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_KBCC, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_KBCD, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_KBCE, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_KBCF, TEGRA_MUX_NAND, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO N4 */
{TEGRA_PINGROUP_LCSN, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD10, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD11, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD12, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD13, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD14, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD15, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD16, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD17, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD2, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD3, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD4, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD5, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD6, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD7, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD8, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LD9, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO N6 */
{TEGRA_PINGROUP_LDC, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LDI, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LHP0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LHP1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LHP2, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LHS, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* Multiplexed RDnWR */
{TEGRA_PINGROUP_LM0, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LM1, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LPP, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO B2 */
{TEGRA_PINGROUP_LPW0, TEGRA_MUX_DISPLAYB, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LPW1, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LPW2, TEGRA_MUX_DISPLAYB, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LSC0, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* Multiplexed gated nPWE */
{TEGRA_PINGROUP_LSC1, TEGRA_MUX_DISPLAYB, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO Z4 */
{TEGRA_PINGROUP_LSCK, TEGRA_MUX_DISPLAYB, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO N5 */
{TEGRA_PINGROUP_LSDA, TEGRA_MUX_DISPLAYB, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO Z2 */
{TEGRA_PINGROUP_LSDI, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LSPI, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* THERMD_ALERT */
{TEGRA_PINGROUP_LVP0, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LVP1, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_LVS, TEGRA_MUX_DISPLAYA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* OWR multiplexed with GMI_CLK */
{TEGRA_PINGROUP_OWC, TEGRA_MUX_OWR, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_PMC, TEGRA_MUX_PWR_ON, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* Following five are for specific PMC pin pull-up/down control only */
/* CLK_32K_OUT */
{TEGRA_PINGROUP_PMCA, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* SYS_CLK_REQ */
{TEGRA_PINGROUP_PMCB, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* CORE_PWR_REQ */
{TEGRA_PINGROUP_PMCC, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* CPU_PWR_REQ */
{TEGRA_PINGROUP_PMCD, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* PWR_INT_N pulled up */
{TEGRA_PINGROUP_PMCE, TEGRA_MUX_NONE, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
/* Gating RDnWR, nPWE through GPIOs further down below */
{TEGRA_PINGROUP_PTA, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_RM, TEGRA_MUX_I2C, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* PWM3 */
/* PWM<D> multiplexed with CIF_DD<6> */
{TEGRA_PINGROUP_SDB, TEGRA_MUX_PWM, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO B6 and B7, PWM0 and PWM1 */
/* PWM<A> multiplexed with CIF_DD<7> */
{TEGRA_PINGROUP_SDC, TEGRA_MUX_PWM, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* PWM2 */
{TEGRA_PINGROUP_SDD, TEGRA_MUX_PWM, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SDIO1, TEGRA_MUX_UARTA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* SPI4 */
{TEGRA_PINGROUP_SLXA, TEGRA_MUX_SPI4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SLXC, TEGRA_MUX_SPI4, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SLXD, TEGRA_MUX_SPI4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SLXK, TEGRA_MUX_SPI4, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO K6 as KEY_MENU multiplexed ACC1_DETECT */
{TEGRA_PINGROUP_SPDI, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* GPIO K5 multiplexed USB1_VBUS (USBC_DET) */
{TEGRA_PINGROUP_SPDO, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* X0, X1, X2, X3, X4, X5, X6 and X7 */
{TEGRA_PINGROUP_SPIA, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIB, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIC, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPID, TEGRA_MUX_SPI1, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIE, TEGRA_MUX_SPI1, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_SPIF, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* USBH_PEN */
{TEGRA_PINGROUP_SPIG, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* USBH_OC */
{TEGRA_PINGROUP_SPIH, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* ULPI data pins pulled up like on NVIDIA's Ventana reference platform */
{TEGRA_PINGROUP_UAA, TEGRA_MUX_ULPI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_UAB, TEGRA_MUX_ULPI, TEGRA_PUPD_PULL_UP, TEGRA_TRI_NORMAL},
/* WM9715L RESET#, USB3340 RESETB, WM9715L GENIRQ and GPIO V3 as KEY_POWER */
#ifdef CONFIG_KEYBOARD_GPIO
{TEGRA_PINGROUP_UAC, TEGRA_MUX_RSVD, TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
#else
{TEGRA_PINGROUP_UAC, TEGRA_MUX_RSVD, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#endif
/* STD_TXD and STD_RXD */
{TEGRA_PINGROUP_UAD, TEGRA_MUX_IRDA, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* A2 and A3 */
{TEGRA_PINGROUP_UCA, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* A4 and A5 */
{TEGRA_PINGROUP_UCB, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_UDA, TEGRA_MUX_ULPI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* Following two are for specific DDR pin pull-up/down control only */
{TEGRA_PINGROUP_XM2C, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
{TEGRA_PINGROUP_XM2D, TEGRA_MUX_NONE, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
};
#ifdef GMI_32BIT
/* 32-bit wide data and 28-bit wide address bus, more chip selects */
static __initdata struct tegra_pingroup_config colibri_t20_widebus_pinmux[] = {
/* D28, D29, D30 and D31 */
{TEGRA_PINGROUP_DAP1, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* AD20, AD21, AD22 and AD23 */
{TEGRA_PINGROUP_GMA, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* AD16, AD17, AD18 and AD19 */
{TEGRA_PINGROUP_GMC, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
/* nCS0 and nCS1 */
{TEGRA_PINGROUP_GMD, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#ifndef SDHCI_8BIT
/* AD24, AD25, AD26 and AD27 */
{TEGRA_PINGROUP_GME, TEGRA_MUX_GMI, TEGRA_PUPD_NORMAL, TEGRA_TRI_NORMAL},
#endif
};
#endif /* GMI_32BIT */
int __init colibri_t20_pinmux_init(void)
{
int i;
tegra_pinmux_config_table(colibri_t20_pinmux, ARRAY_SIZE(colibri_t20_pinmux));
#ifdef GMI_32BIT
tegra_pinmux_config_table(colibri_t20_widebus_pinmux, ARRAY_SIZE(colibri_t20_widebus_pinmux));
#endif
tegra_drive_pinmux_config_table(colibri_t20_drive_pinmux,
ARRAY_SIZE(colibri_t20_drive_pinmux));
/* configure GPIO inputs on multiplexed balls to tri-state specific functions
instead of tri-stating whole groups */
for(i = 0; i < ARRAY_SIZE(colibri_t20_gpio_input_pinmux); i++) {
gpio_request(colibri_t20_gpio_input_pinmux[i], "function tri-stated");
gpio_direction_input(colibri_t20_gpio_input_pinmux[i]);
}
/* un-resetting external devices via SODIMM pin 87 nRESET_OUT */
gpio_request(TEGRA_GPIO_PI4, "SODIMM 87 nRESET_OUT");
gpio_direction_output(TEGRA_GPIO_PI4, 1);
#if defined(CONFIG_CAN_SJA1000) || defined(CONFIG_CAN_SJA1000_MODULE)
/* not tri-stating GMI_WR_N on SODIMM pin 99 nPWE */
gpio_request(TEGRA_GPIO_PT5, "GMI_WR_N on 99");
gpio_direction_output(TEGRA_GPIO_PT5, 0);
#else /* CONFIG_CAN_SJA1000 | CONFIG_CAN_SJA1000_MODULE */
/* tri-stating GMI_WR_N on SODIMM pin 99 nPWE */
gpio_request(TEGRA_GPIO_PT5, "no GMI_WR_N on 99");
gpio_direction_output(TEGRA_GPIO_PT5, 1);
#endif /* CONFIG_CAN_SJA1000 | CONFIG_CAN_SJA1000_MODULE */
/* not tri-stating GMI_WR_N on SODIMM pin 93 RDnWR */
gpio_request(TEGRA_GPIO_PT6, "GMI_WR_N on 93 RDnWR");
gpio_direction_output(TEGRA_GPIO_PT6, 0);
#ifdef USE_CAPACITIVE_TOUCH_ADAPTER
gpio_request(TEGRA_GPIO_PA6, "Capacitive Touch Reset");
gpio_direction_output(TEGRA_GPIO_PA6, 1);
#else
gpio_request(TEGRA_GPIO_PK4, "Capacitive Touch Reset");
gpio_direction_output(TEGRA_GPIO_PK4, 1);
#endif
return 0;
}
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