path: root/arch/arm/mach-tegra/pinmux.c

/*
 * linux/arch/arm/mach-tegra/pinmux.c
 *
 * Copyright (C) 2010 Google, 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/init.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/spinlock.h>
#include <linux/io.h>
#include <linux/platform_device.h>
#include <linux/of_device.h>

#include <mach/iomap.h>
#include <mach/pinmux.h>

#define HSM_EN(reg)	(((reg) >> 2) & 0x1)
#define SCHMT_EN(reg)	(((reg) >> 3) & 0x1)
#define LPMD(reg)	(((reg) >> 4) & 0x3)
#define DRVDN(reg)	(((reg) >> 12) & 0x1f)
#define DRVUP(reg)	(((reg) >> 20) & 0x1f)
#define SLWR(reg)	(((reg) >> 28) & 0x3)
#define SLWF(reg)	(((reg) >> 30) & 0x3)

static const struct tegra_pingroup_desc *pingroups;
static const struct tegra_drive_pingroup_desc *drive_pingroups;
static int pingroup_max;
static int drive_max;

static char *tegra_mux_names[TEGRA_MAX_MUX] = {
	[TEGRA_MUX_AHB_CLK] = "AHB_CLK",
	[TEGRA_MUX_APB_CLK] = "APB_CLK",
	[TEGRA_MUX_AUDIO_SYNC] = "AUDIO_SYNC",
	[TEGRA_MUX_CRT] = "CRT",
	[TEGRA_MUX_DAP1] = "DAP1",
	[TEGRA_MUX_DAP2] = "DAP2",
	[TEGRA_MUX_DAP3] = "DAP3",
	[TEGRA_MUX_DAP4] = "DAP4",
	[TEGRA_MUX_DAP5] = "DAP5",
	[TEGRA_MUX_DISPLAYA] = "DISPLAYA",
	[TEGRA_MUX_DISPLAYB] = "DISPLAYB",
	[TEGRA_MUX_EMC_TEST0_DLL] = "EMC_TEST0_DLL",
	[TEGRA_MUX_EMC_TEST1_DLL] = "EMC_TEST1_DLL",
	[TEGRA_MUX_GMI] = "GMI",
	[TEGRA_MUX_GMI_INT] = "GMI_INT",
	[TEGRA_MUX_HDMI] = "HDMI",
	[TEGRA_MUX_I2C] = "I2C",
	[TEGRA_MUX_I2C2] = "I2C2",
	[TEGRA_MUX_I2C3] = "I2C3",
	[TEGRA_MUX_IDE] = "IDE",
	[TEGRA_MUX_IRDA] = "IRDA",
	[TEGRA_MUX_KBC] = "KBC",
	[TEGRA_MUX_MIO] = "MIO",
	[TEGRA_MUX_MIPI_HS] = "MIPI_HS",
	[TEGRA_MUX_NAND] = "NAND",
	[TEGRA_MUX_OSC] = "OSC",
	[TEGRA_MUX_OWR] = "OWR",
	[TEGRA_MUX_PCIE] = "PCIE",
	[TEGRA_MUX_PLLA_OUT] = "PLLA_OUT",
	[TEGRA_MUX_PLLC_OUT1] = "PLLC_OUT1",
	[TEGRA_MUX_PLLM_OUT1] = "PLLM_OUT1",
	[TEGRA_MUX_PLLP_OUT2] = "PLLP_OUT2",
	[TEGRA_MUX_PLLP_OUT3] = "PLLP_OUT3",
	[TEGRA_MUX_PLLP_OUT4] = "PLLP_OUT4",
	[TEGRA_MUX_PWM] = "PWM",
	[TEGRA_MUX_PWR_INTR] = "PWR_INTR",
	[TEGRA_MUX_PWR_ON] = "PWR_ON",
	[TEGRA_MUX_RTCK] = "RTCK",
	[TEGRA_MUX_SDIO1] = "SDIO1",
	[TEGRA_MUX_SDIO2] = "SDIO2",
	[TEGRA_MUX_SDIO3] = "SDIO3",
	[TEGRA_MUX_SDIO4] = "SDIO4",
	[TEGRA_MUX_SFLASH] = "SFLASH",
	[TEGRA_MUX_SPDIF] = "SPDIF",
	[TEGRA_MUX_SPI1] = "SPI1",
	[TEGRA_MUX_SPI2] = "SPI2",
	[TEGRA_MUX_SPI2_ALT] = "SPI2_ALT",
	[TEGRA_MUX_SPI3] = "SPI3",
	[TEGRA_MUX_SPI4] = "SPI4",
	[TEGRA_MUX_TRACE] = "TRACE",
	[TEGRA_MUX_TWC] = "TWC",
	[TEGRA_MUX_UARTA] = "UARTA",
	[TEGRA_MUX_UARTB] = "UARTB",
	[TEGRA_MUX_UARTC] = "UARTC",
	[TEGRA_MUX_UARTD] = "UARTD",
	[TEGRA_MUX_UARTE] = "UARTE",
	[TEGRA_MUX_ULPI] = "ULPI",
	[TEGRA_MUX_VI] = "VI",
	[TEGRA_MUX_VI_SENSOR_CLK] = "VI_SENSOR_CLK",
	[TEGRA_MUX_XIO] = "XIO",
	[TEGRA_MUX_BLINK] = "BLINK",
	[TEGRA_MUX_CEC] = "CEC",
	[TEGRA_MUX_CLK12] = "CLK12",
	[TEGRA_MUX_DAP] = "DAP",
	[TEGRA_MUX_DAPSDMMC2] = "DAPSDMMC2",
	[TEGRA_MUX_DDR] = "DDR",
	[TEGRA_MUX_DEV3] = "DEV3",
	[TEGRA_MUX_DTV] = "DTV",
	[TEGRA_MUX_VI_ALT1] = "VI_ALT1",
	[TEGRA_MUX_VI_ALT2] = "VI_ALT2",
	[TEGRA_MUX_VI_ALT3] = "VI_ALT3",
	[TEGRA_MUX_EMC_DLL] = "EMC_DLL",
	[TEGRA_MUX_EXTPERIPH1] = "EXTPERIPH1",
	[TEGRA_MUX_EXTPERIPH2] = "EXTPERIPH2",
	[TEGRA_MUX_EXTPERIPH3] = "EXTPERIPH3",
	[TEGRA_MUX_GMI_ALT] = "GMI_ALT",
	[TEGRA_MUX_HDA] = "HDA",
	[TEGRA_MUX_HSI] = "HSI",
	[TEGRA_MUX_I2C4] = "I2C4",
	[TEGRA_MUX_I2C5] = "I2C5",
	[TEGRA_MUX_I2CPWR