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-rw-r--r--arch/arm/mach-tegra/pinmux.c987
1 files changed, 0 insertions, 987 deletions
diff --git a/arch/arm/mach-tegra/pinmux.c b/arch/arm/mach-tegra/pinmux.c
deleted file mode 100644
index ac35d2b..0000000
--- a/arch/arm/mach-tegra/pinmux.c
+++ /dev/null
@@ -1,987 +0,0 @@
-/*
- * 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] = "I2CPWR",
- [TEGRA_MUX_I2S0] = "I2S0",
- [TEGRA_MUX_I2S1] = "I2S1",
- [TEGRA_MUX_I2S2] = "I2S2",
- [TEGRA_MUX_I2S3] = "I2S3",
- [TEGRA_MUX_I2S4] = "I2S4",
- [TEGRA_MUX_NAND_ALT] = "NAND_ALT",
- [TEGRA_MUX_POPSDIO4] = "POPSDIO4",
- [TEGRA_MUX_POPSDMMC4] = "POPSDMMC4",
- [TEGRA_MUX_PWM0] = "PWM0",
- [TEGRA_MUX_PWM1] = "PWM2",
- [TEGRA_MUX_PWM2] = "PWM2",
- [TEGRA_MUX_PWM3] = "PWM3",
- [TEGRA_MUX_SATA] = "SATA",
- [TEGRA_MUX_SPI5] = "SPI5",
- [TEGRA_MUX_SPI6] = "SPI6",
- [TEGRA_MUX_SYSCLK] = "SYSCLK",
- [TEGRA_MUX_VGP1] = "VGP1",
- [TEGRA_MUX_VGP2] = "VGP2",
- [TEGRA_MUX_VGP3] = "VGP3",
- [TEGRA_MUX_VGP4] = "VGP4",
- [TEGRA_MUX_VGP5] = "VGP5",
- [TEGRA_MUX_VGP6] = "VGP6",
- [TEGRA_MUX_SAFE] = "<safe>",
-};
-
-static const char *tegra_drive_names[TEGRA_MAX_DRIVE] = {
- [TEGRA_DRIVE_DIV_8] = "DIV_8",
- [TEGRA_DRIVE_DIV_4] = "DIV_4",
- [TEGRA_DRIVE_DIV_2] = "DIV_2",
- [TEGRA_DRIVE_DIV_1] = "DIV_1",
-};
-
-static const char *tegra_slew_names[TEGRA_MAX_SLEW] = {
- [TEGRA_SLEW_FASTEST] = "FASTEST",
- [TEGRA_SLEW_FAST] = "FAST",
- [TEGRA_SLEW_SLOW] = "SLOW",
- [TEGRA_SLEW_SLOWEST] = "SLOWEST",
-};
-
-static DEFINE_SPINLOCK(mux_lock);
-
-static const char *pingroup_name(int pg)
-{
- if (pg < 0 || pg >= pingroup_max)
- return "<UNKNOWN>";
-
- return pingroups[pg].name;
-}
-
-static const char *func_name(enum tegra_mux_func func)
-{
- if (func == TEGRA_MUX_RSVD1)
- return "RSVD1";
-
- if (func == TEGRA_MUX_RSVD2)
- return "RSVD2";
-
- if (func == TEGRA_MUX_RSVD3)
- return "RSVD3";
-
- if (func == TEGRA_MUX_RSVD4)
- return "RSVD4";
-
- if (func == TEGRA_MUX_NONE)
- return "NONE";
-
- if (func < 0 || func >= TEGRA_MAX_MUX)
- return "<UNKNOWN>";
-
- return tegra_mux_names[func];
-}
-
-
-static const char *tri_name(unsigned long val)
-{
- return val ? "TRISTATE" : "NORMAL";
-}
-
-static const char *pupd_name(unsigned long val)
-{
- switch (val) {
- case 0:
- return "NORMAL";
-
- case 1:
- return "PULL_DOWN";
-
- case 2:
- return "PULL_UP";
-
- default:
- return "RSVD";
- }
-}
-
-static int nbanks;
-static void __iomem **regs;
-
-static inline u32 pg_readl(u32 bank, u32 reg)
-{
- return readl(regs[bank] + reg);
-}
-
-static inline void pg_writel(u32 val, u32 bank, u32 reg)
-{
- writel(val, regs[bank] + reg);
-}
-
-static int tegra_pinmux_set_func(const struct tegra_pingroup_config *config)
-{
- int mux = -1;
- int i;
- unsigned long reg;
- unsigned long flags;
- int pg = config->pingroup;
- enum tegra_mux_func func = config->func;
-
- if (pg < 0 || pg >= pingroup_max)
- return -ERANGE;
-
- if (pingroups[pg].mux_reg < 0)
- return -EINVAL;
-
- if (func < 0)
- return -ERANGE;
-
- if (func == TEGRA_MUX_SAFE)
- func = pingroups[pg].func_safe;
-
- if (func & TEGRA_MUX_RSVD) {
- mux = func & 0x3;
- } else {
- for (i = 0; i < 4; i++) {
- if (pingroups[pg].funcs[i] == func) {
- mux = i;
- break;
- }
- }
- }
-
- if (mux < 0)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(pingroups[pg].mux_bank, pingroups[pg].mux_reg);
- reg &= ~(0x3 << pingroups[pg].mux_bit);
- reg |= mux << pingroups[pg].mux_bit;
- pg_writel(reg, pingroups[pg].mux_bank, pingroups[pg].mux_reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-int tegra_pinmux_set_tristate(int pg, enum tegra_tristate tristate)
-{
- unsigned long reg;
- unsigned long flags;
-
- if (pg < 0 || pg >= pingroup_max)
- return -ERANGE;
-
- if (pingroups[pg].tri_reg < 0)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(pingroups[pg].tri_bank, pingroups[pg].tri_reg);
- reg &= ~(0x1 << pingroups[pg].tri_bit);
- if (tristate)
- reg |= 1 << pingroups[pg].tri_bit;
- pg_writel(reg, pingroups[pg].tri_bank, pingroups[pg].tri_reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-int tegra_pinmux_set_pullupdown(int pg, enum tegra_pullupdown pupd)
-{
- unsigned long reg;
- unsigned long flags;
-
- if (pg < 0 || pg >= pingroup_max)
- return -ERANGE;
-
- if (pingroups[pg].pupd_reg < 0)
- return -EINVAL;
-
- if (pupd != TEGRA_PUPD_NORMAL &&
- pupd != TEGRA_PUPD_PULL_DOWN &&
- pupd != TEGRA_PUPD_PULL_UP)
- return -EINVAL;
-
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(pingroups[pg].pupd_bank, pingroups[pg].pupd_reg);
- reg &= ~(0x3 << pingroups[pg].pupd_bit);
- reg |= pupd << pingroups[pg].pupd_bit;
- pg_writel(reg, pingroups[pg].pupd_bank, pingroups[pg].pupd_reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static void tegra_pinmux_config_pingroup(const struct tegra_pingroup_config *config)
-{
- int pingroup = config->pingroup;
- enum tegra_mux_func func = config->func;
- enum tegra_pullupdown pupd = config->pupd;
- enum tegra_tristate tristate = config->tristate;
- int err;
-
- if (pingroups[pingroup].mux_reg >= 0) {
- err = tegra_pinmux_set_func(config);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s func to %s: %d\n",
- pingroup_name(pingroup), func_name(func), err);
- }
-
- if (pingroups[pingroup].pupd_reg >= 0) {
- err = tegra_pinmux_set_pullupdown(pingroup, pupd);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s pullupdown to %s: %d\n",
- pingroup_name(pingroup), pupd_name(pupd), err);
- }
-
- if (pingroups[pingroup].tri_reg >= 0) {
- err = tegra_pinmux_set_tristate(pingroup, tristate);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s tristate to %s: %d\n",
- pingroup_name(pingroup), tri_name(func), err);
- }
-}
-
-void tegra_pinmux_config_table(const struct tegra_pingroup_config *config, int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- tegra_pinmux_config_pingroup(&config[i]);
-}
-
-static const char *drive_pinmux_name(int pg)
-{
- if (pg < 0 || pg >= drive_max)
- return "<UNKNOWN>";
-
- return drive_pingroups[pg].name;
-}
-
-static const char *enable_name(unsigned long val)
-{
- return val ? "ENABLE" : "DISABLE";
-}
-
-static const char *drive_name(unsigned long val)
-{
- if (val >= TEGRA_MAX_DRIVE)
- return "<UNKNOWN>";
-
- return tegra_drive_names[val];
-}
-
-static const char *slew_name(unsigned long val)
-{
- if (val >= TEGRA_MAX_SLEW)
- return "<UNKNOWN>";
-
- return tegra_slew_names[val];
-}
-
-static int tegra_drive_pinmux_set_hsm(int pg, enum tegra_hsm hsm)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (hsm != TEGRA_HSM_ENABLE && hsm != TEGRA_HSM_DISABLE)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- if (hsm == TEGRA_HSM_ENABLE)
- reg |= (1 << 2);
- else
- reg &= ~(1 << 2);
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static int tegra_drive_pinmux_set_schmitt(int pg, enum tegra_schmitt schmitt)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (schmitt != TEGRA_SCHMITT_ENABLE && schmitt != TEGRA_SCHMITT_DISABLE)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- if (schmitt == TEGRA_SCHMITT_ENABLE)
- reg |= (1 << 3);
- else
- reg &= ~(1 << 3);
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static int tegra_drive_pinmux_set_drive(int pg, enum tegra_drive drive)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (drive < 0 || drive >= TEGRA_MAX_DRIVE)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- reg &= ~(0x3 << 4);
- reg |= drive << 4;
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static int tegra_drive_pinmux_set_pull_down(int pg,
- enum tegra_pull_strength pull_down)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (pull_down < 0 || pull_down >= TEGRA_MAX_PULL)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- reg &= ~(0x1f << 12);
- reg |= pull_down << 12;
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static int tegra_drive_pinmux_set_pull_up(int pg,
- enum tegra_pull_strength pull_up)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (pull_up < 0 || pull_up >= TEGRA_MAX_PULL)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- reg &= ~(0x1f << 12);
- reg |= pull_up << 12;
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static int tegra_drive_pinmux_set_slew_rising(int pg,
- enum tegra_slew slew_rising)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (slew_rising < 0 || slew_rising >= TEGRA_MAX_SLEW)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- reg &= ~(0x3 << 28);
- reg |= slew_rising << 28;
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static int tegra_drive_pinmux_set_slew_falling(int pg,
- enum tegra_slew slew_falling)
-{
- unsigned long flags;
- u32 reg;
- if (pg < 0 || pg >= drive_max)
- return -ERANGE;
-
- if (slew_falling < 0 || slew_falling >= TEGRA_MAX_SLEW)
- return -EINVAL;
-
- spin_lock_irqsave(&mux_lock, flags);
-
- reg = pg_readl(drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
- reg &= ~(0x3 << 30);
- reg |= slew_falling << 30;
- pg_writel(reg, drive_pingroups[pg].reg_bank, drive_pingroups[pg].reg);
-
- spin_unlock_irqrestore(&mux_lock, flags);
-
- return 0;
-}
-
-static void tegra_drive_pinmux_config_pingroup(int pingroup,
- enum tegra_hsm hsm,
- enum tegra_schmitt schmitt,
- enum tegra_drive drive,
- enum tegra_pull_strength pull_down,
- enum tegra_pull_strength pull_up,
- enum tegra_slew slew_rising,
- enum tegra_slew slew_falling)
-{
- int err;
-
- err = tegra_drive_pinmux_set_hsm(pingroup, hsm);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s hsm to %s: %d\n",
- drive_pinmux_name(pingroup),
- enable_name(hsm), err);
-
- err = tegra_drive_pinmux_set_schmitt(pingroup, schmitt);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s schmitt to %s: %d\n",
- drive_pinmux_name(pingroup),
- enable_name(schmitt), err);
-
- err = tegra_drive_pinmux_set_drive(pingroup, drive);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s drive to %s: %d\n",
- drive_pinmux_name(pingroup),
- drive_name(drive), err);
-
- err = tegra_drive_pinmux_set_pull_down(pingroup, pull_down);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s pull down to %d: %d\n",
- drive_pinmux_name(pingroup),
- pull_down, err);
-
- err = tegra_drive_pinmux_set_pull_up(pingroup, pull_up);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s pull up to %d: %d\n",
- drive_pinmux_name(pingroup),
- pull_up, err);
-
- err = tegra_drive_pinmux_set_slew_rising(pingroup, slew_rising);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s rising slew to %s: %d\n",
- drive_pinmux_name(pingroup),
- slew_name(slew_rising), err);
-
- err = tegra_drive_pinmux_set_slew_falling(pingroup, slew_falling);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s falling slew to %s: %d\n",
- drive_pinmux_name(pingroup),
- slew_name(slew_falling), err);
-}
-
-void tegra_drive_pinmux_config_table(struct tegra_drive_pingroup_config *config,
- int len)
-{
- int i;
-
- for (i = 0; i < len; i++)
- tegra_drive_pinmux_config_pingroup(config[i].pingroup,
- config[i].hsm,
- config[i].schmitt,
- config[i].drive,
- config[i].pull_down,
- config[i].pull_up,
- config[i].slew_rising,
- config[i].slew_falling);
-}
-
-void tegra_pinmux_set_safe_pinmux_table(const struct tegra_pingroup_config *config,
- int len)
-{
- int i;
- struct tegra_pingroup_config c;
-
- for (i = 0; i < len; i++) {
- int err;
- c = config[i];
- if (c.pingroup < 0 || c.pingroup >= pingroup_max) {
- WARN_ON(1);
- continue;
- }
- c.func = pingroups[c.pingroup].func_safe;
- err = tegra_pinmux_set_func(&c);
- if (err < 0)
- pr_err("%s: tegra_pinmux_set_func returned %d setting "
- "%s to %s\n", __func__, err,
- pingroup_name(c.pingroup), func_name(c.func));
- }
-}
-
-void tegra_pinmux_config_pinmux_table(const struct tegra_pingroup_config *config,
- int len)
-{
- int i;
-
- for (i = 0; i < len; i++) {
- int err;
- if (config[i].pingroup < 0 ||
- config[i].pingroup >= pingroup_max) {
- WARN_ON(1);
- continue;
- }
- err = tegra_pinmux_set_func(&config[i]);
- if (err < 0)
- pr_err("%s: tegra_pinmux_set_func returned %d setting "
- "%s to %s\n", __func__, err,
- pingroup_name(config[i].pingroup),
- func_name(config[i].func));
- }
-}
-
-void tegra_pinmux_config_tristate_table(const struct tegra_pingroup_config *config,
- int len, enum tegra_tristate tristate)
-{
- int i;
- int err;
- int pingroup;
-
- for (i = 0; i < len; i++) {
- pingroup = config[i].pingroup;
- if (pingroups[pingroup].tri_reg >= 0) {
- err = tegra_pinmux_set_tristate(pingroup, tristate);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s tristate"
- " to %s: %d\n", pingroup_name(pingroup),
- tri_name(tristate), err);
- }
- }
-}
-
-void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *config,
- int len, enum tegra_pullupdown pupd)
-{
- int i;
- int err;
- int pingroup;
-
- for (i = 0; i < len; i++) {
- pingroup = config[i].pingroup;
- if (pingroups[pingroup].pupd_reg >= 0) {
- err = tegra_pinmux_set_pullupdown(pingroup, pupd);
- if (err < 0)
- pr_err("pinmux: can't set pingroup %s pullupdown"
- " to %s: %d\n", pingroup_name(pingroup),
- pupd_name(pupd), err);
- }
- }
-}
-
-static struct of_device_id tegra_pinmux_of_match[] __devinitdata = {
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
- { .compatible = "nvidia,tegra20-pinmux", tegra20_pinmux_init },
-#endif
-#ifdef CONFIG_ARCH_TEGRA_3x_SOC
- { .compatible = "nvidia,tegra30-pinmux", tegra30_pinmux_init },
-#endif
- { },
-};
-
-static int __devinit tegra_pinmux_probe(struct platform_device *pdev)
-{
- struct resource *res;
- int i;
- int config_bad = 0;
- const struct of_device_id *match;
-
- match = of_match_device(tegra_pinmux_of_match, &pdev->dev);
-
- if (match)
- ((pinmux_init)(match->data))(&pingroups, &pingroup_max,
- &drive_pingroups, &drive_max);
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
- else
- /* no device tree available, so we must be on tegra20 */
- tegra20_pinmux_init(&pingroups, &pingroup_max,
- &drive_pingroups, &drive_max);
-#else
- pr_warn("non Tegra20 platform requires pinmux devicetree node\n");
-#endif
-
- for (i = 0; ; i++) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, i);
- if (!res)
- break;
- }
- nbanks = i;
-
- for (i = 0; i < pingroup_max; i++) {
- if (pingroups[i].tri_bank >= nbanks) {
- dev_err(&pdev->dev, "pingroup %d: bad tri_bank\n", i);
- config_bad = 1;
- }
-
- if (pingroups[i].mux_bank >= nbanks) {
- dev_err(&pdev->dev, "pingroup %d: bad mux_bank\n", i);
- config_bad = 1;
- }
-
- if (pingroups[i].pupd_bank >= nbanks) {
- dev_err(&pdev->dev, "pingroup %d: bad pupd_bank\n", i);
- config_bad = 1;
- }
- }
-
- for (i = 0; i < drive_max; i++) {
- if (drive_pingroups[i].reg_bank >= nbanks) {
- dev_err(&pdev->dev,
- "drive pingroup %d: bad reg_bank\n", i);
- config_bad = 1;
- }
- }
-
- if (config_bad)
- return -ENODEV;
-
- regs = devm_kzalloc(&pdev->dev, nbanks * sizeof(*regs), GFP_KERNEL);
- if (!regs) {
- dev_err(&pdev->dev, "Can't alloc regs pointer\n");
- return -ENODEV;
- }
-
- for (i = 0; i < nbanks; i++) {
- res = platform_get_resource(pdev, IORESOURCE_MEM, i);
- if (!res) {
- dev_err(&pdev->dev, "Missing MEM resource\n");
- return -ENODEV;
- }
-
- if (!devm_request_mem_region(&pdev->dev, res->start,
- resource_size(res),
- dev_name(&pdev->dev))) {
- dev_err(&pdev->dev,
- "Couldn't request MEM resource %d\n", i);
- return -ENODEV;
- }
-
- regs[i] = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (!regs) {
- dev_err(&pdev->dev, "Couldn't ioremap regs %d\n", i);
- return -ENODEV;
- }
- }
-
- return 0;
-}
-
-static struct platform_driver tegra_pinmux_driver = {
- .driver = {
- .name = "tegra-pinmux",
- .owner = THIS_MODULE,
- .of_match_table = tegra_pinmux_of_match,
- },
- .probe = tegra_pinmux_probe,
-};
-
-static int __init tegra_pinmux_init(void)
-{
- return platform_driver_register(&tegra_pinmux_driver);
-}
-postcore_initcall(tegra_pinmux_init);
-
-#ifdef CONFIG_DEBUG_FS
-
-#include <linux/debugfs.h>
-#include <linux/seq_file.h>
-
-static void dbg_pad_field(struct seq_file *s, int len)
-{
- seq_putc(s, ',');
-
- while (len-- > -1)
- seq_putc(s, ' ');
-}
-
-static int dbg_pinmux_show(struct seq_file *s, void *unused)
-{
- int i;
- int len;
-
- for (i = 0; i < pingroup_max; i++) {
- unsigned long reg;
- unsigned long tri;
- unsigned long mux;
- unsigned long pupd;
-
- seq_printf(s, "\t{TEGRA_PINGROUP_%s", pingroups[i].name);
- len = strlen(pingroups[i].name);
- dbg_pad_field(s, 5 - len);
-
- if (pingroups[i].mux_reg < 0) {
- seq_printf(s, "TEGRA_MUX_NONE");
- len = strlen("NONE");
- } else {
- reg = pg_readl(pingroups[i].mux_bank,
- pingroups[i].mux_reg);
- mux = (reg >> pingroups[i].mux_bit) & 0x3;
- if (pingroups[i].funcs[mux] == TEGRA_MUX_RSVD) {
- seq_printf(s, "TEGRA_MUX_RSVD%1lu", mux+1);
- len = 5;
- } else {
- seq_printf(s, "TEGRA_MUX_%s",
- tegra_mux_names[pingroups[i].funcs[mux]]);
- len = strlen(tegra_mux_names[pingroups[i].funcs[mux]]);
- }
- }
- dbg_pad_field(s, 13-len);
-
- if (pingroups[i].pupd_reg < 0) {
- seq_printf(s, "TEGRA_PUPD_NORMAL");
- len = strlen("NORMAL");
- } else {
- reg = pg_readl(pingroups[i].pupd_bank,
- pingroups[i].pupd_reg);
- pupd = (reg >> pingroups[i].pupd_bit) & 0x3;
- seq_printf(s, "TEGRA_PUPD_%s", pupd_name(pupd));
- len = strlen(pupd_name(pupd));
- }
- dbg_pad_field(s, 9 - len);
-
- if (pingroups[i].tri_reg < 0) {
- seq_printf(s, "TEGRA_TRI_NORMAL");
- } else {
- reg = pg_readl(pingroups[i].tri_bank,
- pingroups[i].tri_reg);
- tri = (reg >> pingroups[i].tri_bit) & 0x1;
-
- seq_printf(s, "TEGRA_TRI_%s", tri_name(tri));
- }
- seq_printf(s, "},\n");
- }
- return 0;
-}
-
-static int dbg_pinmux_open(struct inode *inode, struct file *file)
-{
- return single_open(file, dbg_pinmux_show, &inode->i_private);
-}
-
-static const struct file_operations debug_fops = {
- .open = dbg_pinmux_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int dbg_drive_pinmux_show(struct seq_file *s, void *unused)
-{
- int i;
- int len;
-
- for (i = 0; i < drive_max; i++) {
- u32 reg;
-
- seq_printf(s, "\t{TEGRA_DRIVE_PINGROUP_%s",
- drive_pingroups[i].name);
- len = strlen(drive_pingroups[i].name);
- dbg_pad_field(s, 7 - len);
-
-
- reg = pg_readl(drive_pingroups[i].reg_bank,
- drive_pingroups[i].reg);
- if (HSM_EN(reg)) {
- seq_printf(s, "TEGRA_HSM_ENABLE");
- len = 16;
- } else {
- seq_printf(s, "TEGRA_HSM_DISABLE");
- len = 17;
- }
- dbg_pad_field(s, 17 - len);
-
- if (SCHMT_EN(reg)) {
- seq_printf(s, "TEGRA_SCHMITT_ENABLE");
- len = 21;
- } else {
- seq_printf(s, "TEGRA_SCHMITT_DISABLE");
- len = 22;
- }
- dbg_pad_field(s, 22 - len);
-
- seq_printf(s, "TEGRA_DRIVE_%s", drive_name(LPMD(reg)));
- len = strlen(drive_name(LPMD(reg)));
- dbg_pad_field(s, 5 - len);
-
- seq_printf(s, "TEGRA_PULL_%d", DRVDN(reg));
- len = DRVDN(reg) < 10 ? 1 : 2;
- dbg_pad_field(s, 2 - len);
-
- seq_printf(s, "TEGRA_PULL_%d", DRVUP(reg));
- len = DRVUP(reg) < 10 ? 1 : 2;
- dbg_pad_field(s, 2 - len);
-
- seq_printf(s, "TEGRA_SLEW_%s", slew_name(SLWR(reg)));
- len = strlen(slew_name(SLWR(reg)));
- dbg_pad_field(s, 7 - len);
-
- seq_printf(s, "TEGRA_SLEW_%s", slew_name(SLWF(reg)));
-
- seq_printf(s, "},\n");
- }
- return 0;
-}
-
-static int dbg_drive_pinmux_open(struct inode *inode, struct file *file)
-{
- return single_open(file, dbg_drive_pinmux_show, &inode->i_private);
-}
-
-static const struct file_operations debug_drive_fops = {
- .open = dbg_drive_pinmux_open,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
-};
-
-static int __init tegra_pinmux_debuginit(void)
-{
- (void) debugfs_create_file("tegra_pinmux", S_IRUGO,
- NULL, NULL, &debug_fops);
- (void) debugfs_create_file("tegra_pinmux_drive", S_IRUGO,
- NULL, NULL, &debug_drive_fops);
- return 0;
-}
-late_initcall(tegra_pinmux_debuginit);
-#endif