linux/arch/arm/mach-omap1/mux.c

/*
 * linux/arch/arm/mach-omap1/mux.c
 *
 * OMAP1 pin multiplexing configurations
 *
 * Copyright (C) 2003 - 2008 Nokia Corporation
 *
 * Written by Tony Lindgren
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 *
 */
#include <linux/module.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/spinlock.h>

#include <mach/hardware.h>

#include <mach/mux.h>

#ifdef CONFIG_OMAP_MUX

static struct omap_mux_cfg arch_mux_cfg;

#if defined(CONFIG_ARCH_OMAP730) || defined(CONFIG_ARCH_OMAP850)
static struct pin_config omap7xx_pins[] = {
MUX_CFG_7XX("E2_7XX_KBR0",        12,   21,    0,   20,   1, 0)
MUX_CFG_7XX("J7_7XX_KBR1",        12,   25,    0,   24,   1, 0)
MUX_CFG_7XX("E1_7XX_KBR2",        12,   29,    0,   28,   1, 0)
MUX_CFG_7XX("F3_7XX_KBR3",        13,    1,    0,    0,   1, 0)
MUX_CFG_7XX("D2_7XX_KBR4",        13,    5,    0,    4,   1, 0)
MUX_CFG_7XX("C2_7XX_KBC0",        13,    9,    0,    8,   1, 0)
MUX_CFG_7XX("D3_7XX_KBC1",        13,   13,    0,   12,   1, 0)
MUX_CFG_7XX("E4_7XX_KBC2",        13,   17,    0,   16,   1, 0)
MUX_CFG_7XX("F4_7XX_KBC3",        13,   21,    0,   20,   1, 0)
MUX_CFG_7XX("E3_7XX_KBC4",        13,   25,    0,   24,   1, 0)

MUX_CFG_7XX("AA17_7XX_USB_DM",     2,   21,    0,   20,   0, 0)
MUX_CFG_7XX("W16_7XX_USB_PU_EN",   2,   25,    0,   24,   0, 0)
MUX_CFG_7XX("W17_7XX_USB_VBUSI",   2,   29,    6,   28,   1, 0)
MUX_CFG_7XX("W18_7XX_USB_DMCK_OUT",3,    3,    1,    2,   0, 0)
MUX_CFG_7XX("W19_7XX_USB_DCRST",   3,    7,    1,    6,   0, 0)

/* MMC Pins */
MUX_CFG_7XX("MMC_7XX_CMD",         2,    9,    0,    8,   1, 0)
MUX_CFG_7XX("MMC_7XX_CLK",         2,   13,    0,   12,   1, 0)
MUX_CFG_7XX("MMC_7XX_DAT0",        2,   17,    0,   16,   1, 0)

/* I2C interface */
MUX_CFG_7XX("I2C_7XX_SCL",         5,    1,    0,    0,   1, 0)
MUX_CFG_7XX("I2C_7XX_SDA",         5,    5,    0,    0,   1, 0)

/* SPI pins */
MUX_CFG_7XX("SPI_7XX_1",           6,    5,    4,    4,   1, 0)
MUX_CFG_7XX("SPI_7XX_2",           6,    9,    4,    8,   1, 0)
MUX_CFG_7XX("SPI_7XX_3",           6,   13,    4,   12,   1, 0)
MUX_CFG_7XX("SPI_7XX_4",           6,   17,    4,   16,   1, 0)
MUX_CFG_7XX("SPI_7XX_5",           8,   25,    0,   24,   0, 0)
MUX_CFG_7XX("SPI_7XX_6",           9,    5,    0,    4,   0, 0)

/* UART pins */
MUX_CFG_7XX("UART_7XX_1",          3,   21,    0,   20,   0, 0)
MUX_CFG_7XX("UART_7XX_2",          8,    1,    6,    0,   0, 0)
};
#define OMAP7XX_PINS_SZ		ARRAY_SIZE(omap7xx_pins)
#else
#define omap7xx_pins		NULL
#define OMAP7XX_PINS_SZ		0
#endif	/* CONFIG_ARCH_OMAP730 || CONFIG_ARCH_OMAP850 */

#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX)
static struct pin_config omap1xxx_pins[] = {
/*
 *	 description		mux  mode   mux	 pull pull  pull  pu_pd	 pu  dbg
 *				reg  offset mode reg  bit   ena	  reg
 */
MUX_CFG("UART1_TX",		 9,   21,    1,	  2,   3,   0,	 NA,	 0,  0)
MUX_CFG("UART1_RTS",		 9,   12,    1,	  2,   0,   0,	 NA,	 0,  0)

/* UART2 (COM_UART_GATING), conflicts with USB2 */
MUX_CFG("UART2_TX",		 C,   27,    1,	  3,   3,   0,	 NA,	 0,  0)
MUX_CFG("UART2_RX",		 C,   18,    0,	  3,   1,   1,	 NA,	 0,  0)
MUX_CFG("UART2_CTS",		 C,   21,    0,	  3,   1,   1,	 NA,	 0,  0)
MUX_CFG("UART2_RTS",		 C,   24,    1,	  3,   2,   0,	 NA,	 0,  0)

/* UART3 (GIGA_UART_GATING) */
MUX_CFG("UART3_TX",		 6,    0,    1,	  0,  30,   0,	 NA,	 0,  0)
MUX_CFG("UART3_RX",		 6,    3,    0,	  0,  31,   1,	 NA,	 0,  0)
MUX_CFG("UART3_CTS",		 5,   12,    2,	  0,  24,   0,	 NA,	 0,  0)
MUX_CFG("UART3_RTS",		 5,   15,    2,	  0,  25,   0,	 NA,	 0,  0)
MUX_CFG("UART3_CLKREQ",		 9,   27,    0,	  2,   5,   0,	 NA,	 0,  0)
MUX_CFG("UART3_BCLK",		 A,    0,    0,	  2,   6,   0,	 NA,	 0,  0)
MUX_CFG("Y15_1610_UART3_RTS",	 A,    0,    1,	  2,   6,   0,	 NA,	 0,  0)

/* PWT & PWL, conflicts with UART3 */
MUX_CFG("PWT",			 6,    0,    2,	  0,  30,   0,	 NA,	 0,  0)
MUX_CFG("PWL",			 6,    3,    1,	  0,  31,   1,	 NA,	 0,  0)

/* USB internal master generic */
MUX_CFG("R18_USB_VBUS",		 7,    9,    2,	  1,  11,   0,	 NA,	 0,  1)
MUX_CFG("R18_1510_USB_GPIO0",	 7,    9,    0,	  1,  11,   1,	 NA,	 0,  1)
/* works around erratum:  W4_USB_PUEN and W4_USB_PUDIS are switched! */
MUX_CFG("W4_USB_PUEN",		 D,    3,    3,	  3,   5,   1,	 NA,	 0,  1)
MUX_CFG("W4_USB_CLKO",		 D,    3,    1,	  3,   5,   0,	 NA,	 0,  1)
MUX_CFG("W4_USB_HIGHZ",		 D,    3,    4,	  3,   5,   0,	  3,	 0,  1)
MUX_CFG("W4_GPIO58",		 D,    3,    7,	  3,   5,   0,	  3,	 0,  1)

/* USB1 master */
MUX_CFG("USB1_SUSP",		 8,   27,    2,	  1,  27,   0,	 NA,	 0,  1)
MUX_CFG("USB1_SE0",		 9,    0,    2,	  1,  28,   0,	 NA,	 0,  1)
MUX_CFG("W13_1610_USB1_SE0",	 9,    0,    4,	  1,  28,   0,	 NA,	 0,  1)
MUX_CFG("USB1_TXEN",		 9,    3,    2,	  1,  29,   0,	 NA,	 0,  1)
MUX_CFG("USB1_TXD",		 9,   24,    1,	  2,   4,   0,	 NA,	 0,  1)
MUX_CFG("USB1_VP",		 A,    3,    1,	  2,   7,   0,	 NA,	 0,  1)
MUX_CFG("USB1_VM",		 A,    6,    1,	  2,   8,   0,	 NA,	 0,  1)
MUX_CFG("USB1_RCV",		 A,    9,    1,	  2,   9,   0,	 NA,	 0,  1)
MUX_CFG("USB1_SPEED",		 A,   12,    2,	  2,  10,   0,	 NA,	 0,  1)
MUX_CFG("R13_1610_USB1_SPEED",	 A,   12,    5,	  2,  10,   0,	 NA,	 0,  1)
MUX_CFG("R13_1710_USB1_SEO",	 A,   12,    5,   2,  10,   0,   NA,     0,  1)

/* USB2 master */
MUX_CFG("USB2_SUSP",		 B,    3,    1,	  2,  17,   0,	 NA,	 0,  1)
MUX_CFG("USB2_VP",		 B,    6,    1,	  2,  18,   0,	 NA,	 0,  1)
MUX_CFG("USB2_TXEN",		 B,    9,    1,	  2,  19,   0,	 NA,	 0,  1)
MUX_CFG("USB2_VM",		 C,   18,    1,	  3,   0,   0,	 NA,	 0,  1)
MUX_CFG("USB2_RCV",		 C,   21,    1,	  3,   1,   0,	 NA,	 0,  1)
MUX_CFG("USB2_SE0",		 C,   24,    2,	  3,   2,   0,	 NA,	 0,  1)
MUX_CFG("USB2_TXD",		 C,   27,    2,	  3,   3,   0,	 NA,	 0,  1)

/* OMAP-1510 GPIO */
MUX_CFG("R18_1510_GPIO0",	 7,    9,    0,   1,  11,   1,    0,     0,  1)
MUX_CFG("R19_1510_GPIO1",	 7,    6,    0,   1,  10,   1,    0,     0,  1)
MUX_CFG("M14_1510_GPIO2",	 7,    3,    0,   1,   9,   1,    0,     0,  1)

/* OMAP1610 GPIO */
MUX_CFG("P18_1610_GPIO3",	 7,    0,    0,   1,   8,   0,   NA,     0,  1)
MUX_CFG("Y15_1610_GPIO17",	 A,    0,    7,   2,   6,   0,   NA,     0,  1)

/* OMAP-1710 GPIO */
MUX_CFG("R18_1710_GPIO0",        7,    9,    0,   1,  11,   1,    1,     1,  1)
MUX_CFG("V2_1710_GPIO10",        F,   27,    1,   4,   3,   1,    4,     1,  1)
MUX_CFG("N21_1710_GPIO14",       6,    9,    0,   1,   1,   1,    1,     1,  1)
MUX_CFG("W15_1710_GPIO40",       9,   27,    7,   2,   5,   1,    2,     1,  1)

/* MPUIO */
MUX_CFG("MPUIO2",		 7,   18,    0,	  1,  14,   1,	 NA,	 0,  1)
MUX_CFG("N15_1610_MPUIO2",	 7,   18,    0,	  1,  14,   1,	  1,	 0,  1)
MUX_CFG("MPUIO4",		 7,   15,    0,	  1,  13,   1,	 NA,	 0,  1)
MUX_CFG("MPUIO5",		 7,   12,    0,	  1,  12,   1,	 NA,	 0,  1)

MUX_CFG("T20_1610_MPUIO5",	 7,   12,    0,	  1,  12,   0,	  3,	 0,  1)
MUX_CFG("W11_1610_MPUIO6",	10,   15,    2,	  3,   8,   0,	  3,	 0,  1)
MUX_CFG("V10_1610_MPUIO7",	 A,   24,    2,	  2,  14,   0,	  2,	 0,  1)
MUX_CFG("W11_1610_MPUIO9",	10,   15,    1,	  3,   8,   0,	  3,	 0,  1)
MUX_CFG("V10_1610_MPUIO10",	 A,   24,    1,	  2,  14,   0,	  2,	 0,  1)
MUX_CFG("W10_1610_MPUIO11",	 A,   18,    2,	  2,  11,   0,	  2,	 0,  1)
MUX_CFG("E20_1610_MPUIO13",	 3,   21,    1,	  0,   7,   0,	  0,	 0,  1)
MUX_CFG("U20_1610_MPUIO14",	 9,    6,    6,	  0,  30,   0,	  0,	 0,  1)
MUX_CFG("E19_1610_MPUIO15",	 3,   18,    1,	  0,   6,   0,	  0,	 0,  1)

/* MCBSP2 */
MUX_CFG("MCBSP2_CLKR",		 C,    6,    0,	  2,  27,   1,	 NA,	 0,  1)
MUX_CFG("MCBSP2_CLKX",		 C,    9,    0,	  2,  29,   1,	 NA,	 0,  1)
MUX_CFG("MCBSP2_DR",		 C,    0,    0,	  2,  26,   1,	 NA,	 0,  1)
MUX_CFG("MCBSP2_DX",		 C,   15,    0,	  2,  31,   1,	 NA,	 0,  1)
MUX_CFG("MCBSP2_FSR",		 C,   12,    0,	  2,  30,   1,	 NA,	 0,  1)
MUX_CFG("MCBSP2_FSX",		 C,    3,    0,	  2,  27,   1,	 NA,	 0,  1)

/* MCBSP3 NOTE: Mode must 1 for clock */
MUX_CFG("MCBSP3_CLKX",		 9,    3,    1,	  1,  29,   0,	 NA,	 0,  1)

/* Misc ballouts */
MUX_CFG("BALLOUT_V8_ARMIO3",	 B,   18,    0,	  2,  25,   1,	 NA,	 0,  1)
MUX_CFG("N20_HDQ",		 6,   18,    1,   1,   4,   0,    1,     4,  0)

/* OMAP-1610 MMC2 */
MUX_CFG("W8_1610_MMC2_DAT0",	 B,   21,    6,	  2,  23,   1,	  2,	 1,  1)
MUX_CFG("V8_1610_MMC2_DAT1",	 B,   27,    6,	  2,  25,   1,	  2,	 1,  1)
MUX_CFG("W15_1610_MMC2_DAT2",	 9,   12,    6,	  2,   5,   1,	  2,	 1,  1)
MUX_CFG("R10_1610_MMC2_DAT3",	 B,   18,    6,	  2,  22,   1,	  2,	 1,  1)
MUX_CFG("Y10_1610_MMC2_CLK",	 B,    3,    6,	  2,  17,   0,	  2,	 0,  1)
MUX_CFG("Y8_1610_MMC2_CMD",	 B,   24,    6,	  2,  24,   1,	  2,	 1,  1)
MUX_CFG("V9_1610_MMC2_CMDDIR",	 B,   12,    6,	  2,  20,   0,	  2,	 1,  1)
MUX_CFG("V5_1610_MMC2_DATDIR0",	 B,   15,    6,	  2,  21,   0,	  2,	 1,  1)
MUX_CFG("W19_1610_MMC2_DATDIR1", 8,   15,    6,	  1,  23,   0,	  1,	 1,  1)
MUX_CFG("R18_1610_MMC2_CLKIN",	 7,    9,    6,	  1,  11,   0,	  1,	11,  1)

/* OMAP-1610 External Trace Interface */
MUX_CFG("M19_1610_ETM_PSTAT0",	 5,   27,    1,	  0,  29,   0,	  0,	 0,  1)
MUX_CFG("L15_1610_ETM_PSTAT1",	 5,   24,    1,	  0,  28,   0,	  0,	 0,  1)
MUX_CFG("L18_1610_ETM_PSTAT2",	 5,   21,    1,	  0,  27,   0,	  0,	 0,  1)
MUX_CFG("L19_1610_ETM_D0",	 5,   18,    1,	  0,  26,   0,	  0,	 0,  1)
MUX_CFG("J19_1610_ETM_D6",	 5,    0,    1,	  0,  20,   0,	  0,	 0,  1)
MUX_CFG("J18_1610_ETM_D7",	 5,   27,    1,	  0,  19,   0,	  0,	 0,  1)

/* OMAP16XX GPIO */
MUX_CFG("P20_1610_GPIO4",	 6,   27,    0,	  1,   7,   0,	  1,	 1,  1)
MUX_CFG("V9_1610_GPIO7",	 B,   12,    1,	  2,  20,   0,	  2,	 1,  1)
MUX_CFG("W8_1610_GPIO9",	 B,   21,    0,	  2,  23,   0,	  2,	 1,  1)
MUX_CFG("N20_1610_GPIO11",       6,   18,    0,   1,   4,   0,    1,     1,  1)
MUX_CFG("N19_1610_GPIO13",	 6,   12,    0,	  1,   2,   0,	  1,	 1,  1)
MUX_CFG("P10_1610_GPIO22",	 C,    0,    7,	  2,  26,   0,	  2,	 1,  1)
MUX_CFG("V5_1610_GPIO24",	 B,   15,    7,	  2,  21,   0,	  2,	 1,  1)
MUX_CFG("AA20_1610_GPIO_41",	 9,    9,    7,	  1,  31,   0,	  1,	 1,  1)
MUX_CFG("W19_1610_GPIO48",	 8,   15,    7,   1,  23,   1,    1,     0,  1)
MUX_CFG("M7_1610_GPIO62",	10,    0,    0,   4,  24,   0,    4,     0,  1)
MUX_CFG("V14_16XX_GPIO37",	 9,   18,    7,	  2,   2,   0,	  2,	 2,  0)
MUX_CFG("R9_16XX_GPIO18",	 C,   18,    7,   3,   0,   0,    3,     0,  0)
MUX_CFG("L14_16XX_GPIO49",	 6,    3,    7,   0,  31,   0,    0,    31,  0)

/* OMAP-1610 uWire */
MUX_CFG("V19_1610_UWIRE_SCLK",	 8,    6,    0,	  1,  20,   0,	  1,	 1,  1)
MUX_CFG("U18_1610_UWIRE_SDI",	 8,    0,    0,	  1,  18,   0,	  1,	 1,  1)
MUX_CFG("W21_1610_UWIRE_SDO",	 8,    3,    0,	  1,  19,   0,	  1,	 1,  1)
MUX_CFG("N14_1610_UWIRE_CS0",	 8,    9,    1,	  1,  21,   0,	  1,	 1,  1)
MUX_CFG("P15_1610_UWIRE_CS3",	 8,   12,    1,	  1,  22,   0,	  1,	 1,  1)
MUX_CFG("N15_1610_UWIRE_CS1",	 7,   18,    2,	  1,  14,   0,	 NA,	 0,  1)

/* OMAP-1610 SPI */
MUX_CFG("U19_1610_SPIF_SCK",	 7,    21,   6,	  1,  15,   0,	  1,	 1,  1)
MUX_CFG("U18_1610_SPIF_DIN",	 8,    0,    6,	  1,  18,   1,	  1,	 0,  1)
MUX_CFG("P20_1610_SPIF_DIN",	 6,    27,   4,   1,   7,   1,    1,     0,  1)
MUX_CFG("W21_1610_SPIF_DOUT",	 8,    3,    6,	  1,  19,   0,	  1,	 0,  1)
MUX_CFG("R18_1610_SPIF_DOUT",	 7,    9,    3,	  1,  11,   0,	  1,	 0,  1)
MUX_CFG("N14_1610_SPIF_CS0",	 8,    9,    6,	  1,  21,   0,	  1,	 1,  1)
MUX_CFG("N15_1610_SPIF_CS1",	 7,    18,   6,	  1,  14,   0,	  1,	 1,  1)
MUX_CFG("T19_1610_SPIF_CS2",	 7,    15,   4,	  1,  13,   0,	  1,	 1,  1)
MUX_CFG("P15_1610_SPIF_CS3",	 8,    12,   3,	  1,  22,   0,	  1,	 1,  1)

/* OMAP-1610 Flash */
MUX_CFG("L3_1610_FLASH_CS2B_OE",10,    6,    1,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("M8_1610_FLASH_CS2B_WE",10,    3,    1,	 NA,   0,   0,	 NA,	 0,  1)

/* First MMC interface, same on 1510, 1610 and 1710 */
MUX_CFG("MMC_CMD",		 A,   27,    0,	  2,  15,   1,	  2,	 1,  1)
MUX_CFG("MMC_DAT1",		 A,   24,    0,	  2,  14,   1,	  2,	 1,  1)
MUX_CFG("MMC_DAT2",		 A,   18,    0,	  2,  12,   1,	  2,	 1,  1)
MUX_CFG("MMC_DAT0",		 B,    0,    0,	  2,  16,   1,	  2,	 1,  1)
MUX_CFG("MMC_CLK",		 A,   21,    0,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("MMC_DAT3",		10,   15,    0,	  3,   8,   1,	  3,	 1,  1)
MUX_CFG("M15_1710_MMC_CLKI",	 6,   21,    2,   0,   0,   0,   NA,     0,  1)
MUX_CFG("P19_1710_MMC_CMDDIR",	 6,   24,    6,   0,   0,   0,   NA,     0,  1)
MUX_CFG("P20_1710_MMC_DATDIR0",	 6,   27,    5,   0,   0,   0,   NA,     0,  1)

/* OMAP-1610 USB0 alternate configuration */
MUX_CFG("W9_USB0_TXEN",		 B,   9,     5,	  2,  19,   0,	  2,	 0,  1)
MUX_CFG("AA9_USB0_VP",		 B,   6,     5,	  2,  18,   0,	  2,	 0,  1)
MUX_CFG("Y5_USB0_RCV",		 C,  21,     5,	  3,   1,   0,	  1,	 0,  1)
MUX_CFG("R9_USB0_VM",		 C,  18,     5,	  3,   0,   0,	  3,	 0,  1)
MUX_CFG("V6_USB0_TXD",		 C,  27,     5,	  3,   3,   0,	  3,	 0,  1)
MUX_CFG("W5_USB0_SE0",		 C,  24,     5,	  3,   2,   0,	  3,	 0,  1)
MUX_CFG("V9_USB0_SPEED",	 B,  12,     5,	  2,  20,   0,	  2,	 0,  1)
MUX_CFG("Y10_USB0_SUSP",	 B,   3,     5,	  2,  17,   0,	  2,	 0,  1)

/* USB2 interface */
MUX_CFG("W9_USB2_TXEN",		 B,   9,     1,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("AA9_USB2_VP",		 B,   6,     1,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("Y5_USB2_RCV",		 C,  21,     1,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("R9_USB2_VM",		 C,  18,     1,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("V6_USB2_TXD",		 C,  27,     2,	 NA,   0,   0,	 NA,	 0,  1)
MUX_CFG("W5_USB2_SE0",		 C,  24,     2,	 NA,   0,   0,	 NA,	 0,  1)

/* 16XX UART */
MUX_CFG("R13_1610_UART1_TX",	 A,  12,     6,	  2,  10,   0,	  2,	10,  1)
MUX_CFG("V14_16XX_UART1_RX",	 9,  18,     0,	  2,   2,   0,	  2,	 2,  1)
MUX_CFG("R14_1610_UART1_CTS",	 9,  15,     0,	  2,   1,   0,	  2,	 1,  1)
MUX_CFG("AA15_1610_UART1_RTS",	 9,  12,     1,	  2,   0,   0,	  2,	 0,  1)
MUX_CFG("R9_16XX_UART2_RX",	 C,  18,     0,   3,   0,   0,    3,     0,  1)
MUX_CFG("L14_16XX_UART3_RX",	 6,   3,     0,   0,  31,   0,    0,    31,  1)

/* I2C interface */
MUX_CFG("I2C_SCL",		 7,  24,     0,	 NA,   0,   0,	 NA,	 0,  0)
MUX_CFG("I2C_SDA",		 7,  27,     0,	 NA,   0,   0,	 NA,	 0,  0)

/* Keypad */
MUX_CFG("F18_1610_KBC0",	 3,  15,     0,	  0,   5,   1,	  0,	 0,  0)
MUX_CFG("D20_1610_KBC1",	 3,  12,     0,	  0,   4,   1,	  0,	 0,  0)
MUX_CFG("D19_1610_KBC2",	 3,   9,     0,	  0,   3,   1,	  0,	 0,  0)
MUX_CFG("E18_1610_KBC3",	 3,   6,     0,	  0,   2,   1,	  0,	 0,  0)
MUX_CFG("C21_1610_KBC4",	 3,   3,     0,	  0,   1,   1,	  0,	 0,  0)
MUX_CFG("G18_1610_KBR0",	 4,   0,     0,	  0,   10,  1,	  0,	 1,  0)
MUX_CFG("F19_1610_KBR1",	 3,   27,    0,	  0,   9,   1,	  0,	 1,  0)
MUX_CFG("H14_1610_KBR2",	 3,   24,    0,	  0,   8,   1,	  0,	 1,  0)
MUX_CFG("E20_1610_KBR3",	 3,   21,    0,	  0,   7,   1,	  0,	 1,  0)
MUX_CFG("E19_1610_KBR4",	 3,   18,    0,	  0,   6,   1,	  0,	 1,  0)
MUX_CFG("N19_1610_KBR5",	 6,  12,     1,	  1,   2,   1,	  1,	 1,  0)

/* Power management */
MUX_CFG("T20_1610_LOW_PWR",	 7,   12,    1,	  NA,   0,   0,   NA,	 0,  0)

/* MCLK Settings */
MUX_CFG("V5_1710_MCLK_ON",	 B,   15,    0,	  NA,   0,   0,   NA,	 0,  0)
MUX_CFG("V5_1710_MCLK_OFF",	 B,   15,    6,	  NA,   0,   0,   NA,	 0,  0)
MUX_CFG("R10_1610_MCLK_ON",	 B,   18,    0,	  NA,  22,   0,	  NA,	 1,  0)
MUX_CFG("R10_1610_MCLK_OFF",	 B,   18,    6,	  2,   22,   1,	  2,	 1,  1)

/* CompactFlash controller, conflicts with MMC1 */
MUX_CFG("P11_1610_CF_CD2",	 A,   27,    3,	  2,   15,   1,	  2,	 1,  1)
MUX_CFG("R11_1610_CF_IOIS16",	 B,    0,    3,	  2,   16,   1,	  2,	 1,  1)
MUX_CFG("V10_1610_CF_IREQ",	 A,   24,    3,	  2,   14,   0,	  2,	 0,  1)
MUX_CFG("W10_1610_CF_RESET",	 A,   18,    3,	  2,   12,   1,	  2,	 1,  1)
MUX_CFG("W11_1610_CF_CD1",	10,   15,    3,	  3,    8,   1,	  3,	 1,  1)

/* parallel camera */
MUX_CFG("J15_1610_CAM_LCLK",	 4,   24,    0,   0,  18,   1,    0,     0,  0)
MUX_CFG("J18_1610_CAM_D7",	 4,   27,    0,   0,  19,   1,    0,     0,  0)
MUX_CFG("J19_1610_CAM_D6",	 5,    0,    0,   0,  20,   1,    0,     0,  0)
MUX_CFG("J14_1610_CAM_D5",	 5,    3,    0,   0,  21,   1,    0,     0,  0)
MUX_CFG("K18_1610_CAM_D4",	 5,    6,    0,   0,  22,   1,    0,     0,  0)
MUX_CFG("K19_1610_CAM_D3",	 5,    9,    0,   0,  23,   1,    0,     0,  0)
MUX_CFG("K15_1610_CAM_D2",	 5,   12,    0,   0,  24,   1,    0,     0,  0)
MUX_CFG("K14_1610_CAM_D1",	 5,   15,    0,   0,  25,   1,    0,     0,  0)
MUX_CFG("L19_1610_CAM_D0",	 5,   18,    0,   0,  26,   1,    0,     0,  0)
MUX_CFG("L18_1610_CAM_VS",	 5,   21,    0,   0,  27,   1,    0,     0,  0)
MUX_CFG("L15_1610_CAM_HS",	 5,   24,    0,   0,  28,   1,    0,     0,  0)
MUX_CFG("M19_1610_CAM_RSTZ",	 5,   27,    0,   0,  29,   0,    0,     0,  0)
MUX_CFG("Y15_1610_CAM_OUTCLK",	 A,    0,    6,   2,   6,   0,    2,     0,  0)

/* serial camera */
MUX_CFG("H19_1610_CAM_EXCLK",	 4,   21,    0,   0,  17,   0,    0,     0,  0)
	/* REVISIT 5912 spec sez CCP_* can't pullup or pulldown ... ? */
MUX_CFG("Y12_1610_CCP_CLKP",	 8,   18,    6,   1,  24,   1,    1,     0,  0)
MUX_CFG("W13_1610_CCP_CLKM",	 9,    0,    6,   1,  28,   1,    1,     0,  0)
MUX_CFG("W14_1610_CCP_DATAP",	 9,   24,    6,   2,   4,   1,    2,     0,  0)
MUX_CFG("Y14_1610_CCP_DATAM",	 9,   21,    6,   2,   3,   1,    2,     0,  0)
};
#define OMAP1XXX_PINS_SZ	ARRAY_SIZE(omap1xxx_pins)
#else
#define omap1xxx_pins		NULL
#define OMAP1XXX_PINS_SZ	0
#endif	/* CONFIG_ARCH_OMAP15XX || CONFIG_ARCH_OMAP16XX */

static int omap1_cfg_reg(const struct pin_config *cfg)
{
	static DEFINE_SPINLOCK(mux_spin_lock);
	unsigned long flags;
	unsigned int reg_orig = 0, reg = 0, pu_pd_orig = 0, pu_pd = 0,
		pull_orig = 0, pull = 0;
	unsigned int mask, warn = 0;

	/* Check the mux register in question */
	if (cfg->mux_reg) {
		unsigned	tmp1, tmp2;

		spin_lock_irqsave(&mux_spin_lock, flags);
		reg_orig = omap_readl(cfg->mux_reg);

		/* The mux registers always seem to be 3 bits long */
		mask = (0x7 << cfg->mask_offset);
		tmp1 = reg_orig & mask;
		reg = reg_orig & ~mask;

		tmp2 = (cfg->mask << cfg->mask_offset);
		reg |= tmp2;

		if (tmp1 != tmp2)
			warn = 1;

		omap_writel(reg, cfg->mux_reg);
		spin_unlock_irqrestore(&mux_spin_lock, flags);
	}

	/* Check for pull up or pull down selection on 1610 */
	if (!cpu_is_omap15xx()) {
		if (cfg->pu_pd_reg && cfg->pull_val) {
			spin_lock_irqsave(&mux_spin_lock, flags);
			pu_pd_orig = omap_readl(cfg->pu_pd_reg);
			mask = 1 << cfg->pull_bit;

			if (cfg->pu_pd_val) {
				if (!(pu_pd_orig & mask))
					warn = 1;
				/* Use pull up */
				pu_pd = pu_pd_orig | mask;
			} else {
				if (pu_pd_orig & mask)
					warn = 1;
				/* Use pull down */
				pu_pd = pu_pd_orig & ~mask;
			}
			omap_writel(pu_pd, cfg->pu_pd_reg);
			spin_unlock_irqrestore(&mux_spin_lock, flags);
		}
	}

	/* Check for an associated pull down register */
	if (cfg->pull_reg) {
		spin_lock_irqsave(&mux_spin_lock, flags);
		pull_orig = omap_readl(cfg->pull_reg);
		mask = 1 << cfg->pull_bit;

		if (cfg->pull_val) {
			if (pull_orig & mask)
				warn = 1;
			/* Low bit = pull enabled */
			pull = pull_orig & ~mask;
		} else {
			if (!(pull_orig & mask))
				warn = 1;
			/* High bit = pull disabled */
			pull = pull_orig | mask;
		}

		omap_writel(pull, cfg->pull_reg);
		spin_unlock_irqrestore(&mux_spin_lock, flags);
	}

	if (warn) {
#ifdef CONFIG_OMAP_MUX_WARNINGS
		printk(KERN_WARNING "MUX: initialized %s\n", cfg->name);
#endif
	}

#ifdef CONFIG_OMAP_MUX_DEBUG
	if (cfg->debug || warn) {
		printk("MUX: Setting register %s\n", cfg->name);
		printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",
		       cfg->mux_reg_name, cfg->mux_reg, reg_orig, reg);

		if (!cpu_is_omap15xx()) {
			if (cfg->pu_pd_reg && cfg->pull_val) {
				printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",
				       cfg->pu_pd_name, cfg->pu_pd_reg,
				       pu_pd_orig, pu_pd);
			}
		}

		if (cfg->pull_reg)
			printk("      %s (0x%08x) = 0x%08x -> 0x%08x\n",
			       cfg->pull_name, cfg->pull_reg, pull_orig, pull);
	}
#endif

#ifdef CONFIG_OMAP_MUX_WARNINGS
	return warn ? -ETXTBSY : 0;
#else
	return 0;
#endif
}

static struct omap_mux_cfg *mux_cfg;

int __init omap_mux_register(struct omap_mux_cfg *arch_mux_cfg)
{
	if (!arch_mux_cfg || !arch_mux_cfg->pins || arch_mux_cfg->size == 0
			|| !arch_mux_cfg->cfg_reg) {
		printk(KERN_ERR "Invalid pin table\n");
		return -EINVAL;
	}

	mux_cfg = arch_mux_cfg;

	return 0;
}

/*
 * Sets the Omap MUX and PULL_DWN registers based on the table
 */
int omap_cfg_reg(const unsigned long index)
{
	struct pin_config *reg;

	if (!cpu_class_is_omap1()) {
		printk(KERN_ERR "mux: Broken omap_cfg_reg(%lu) entry\n",
				index);
		WARN_ON(1);
		return -EINVAL;
	}

	if (mux_cfg == NULL) {
		printk(KERN_ERR "Pin mux table not initialized\n");
		return -ENODEV;
	}

	if (index >= mux_cfg->size) {
		printk(KERN_ERR "Invalid pin mux index: %lu (%lu)\n",
		       index, mux_cfg->size);
		dump_stack();
		return -ENODEV;
	}

	reg = &mux_cfg->pins[index];

	if (!mux_cfg->cfg_reg)
		return -ENODEV;

	return mux_cfg->cfg_reg(reg);
}
EXPORT_SYMBOL(omap_cfg_reg);

int __init omap1_mux_init(void)
{
	if (cpu_is_omap7xx()) {
		arch_mux_cfg.pins	= omap7xx_pins;
		arch_mux_cfg.size	= OMAP7XX_PINS_SZ;
		arch_mux_cfg.cfg_reg	= omap1_cfg_reg;
	}

	if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
		arch_mux_cfg.pins	= omap1xxx_pins;
		arch_mux_cfg.size	= OMAP1XXX_PINS_SZ;
		arch_mux_cfg.cfg_reg	= omap1_cfg_reg;
	}

	return omap_mux_register(&arch_mux_cfg);
}

#else
#define omap_mux_init() do {} while(0)
#define omap_cfg_reg(x)	do {} while(0)
#endif	/* CONFIG_OMAP_MUX */