[ARM] tegra: add pinmux support

v2: fixes from Russell King
	- include linux/io.h instead of asm/io.h
v3:
	- Add drive strength controls
	- Replace typedef enums with plain enums
Signed-off-by: Erik Gilling <konkers@android.com>
Signed-off-by: Colin Cross <ccross@android.com>

arch/arm/mach-tegra/Makefile

@@ -4,6 +4,8 @@ obj-y                                   += irq.o
 obj-y                                   += clock.o
 obj-y                                   += timer.o
 obj-y                                   += gpio.o
+obj-y                                   += pinmux.o
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC)         += clock.o
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)         += tegra2_clocks.o
 obj-$(CONFIG_SMP)                       += platsmp.o localtimer.o headsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)               += hotplug.o

arch/arm/mach-tegra/include/mach/pinmux.h

+/*
+ * linux/arch/arm/mach-tegra/include/mach/pinmux.h
+ *
+ * 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.
+ *
+ */
+
+#ifndef __MACH_TEGRA_PINMUX_H
+#define __MACH_TEGRA_PINMUX_H
+
+enum tegra_pingroup {
+	TEGRA_PINGROUP_ATA = 0,
+	TEGRA_PINGROUP_ATB,
+	TEGRA_PINGROUP_ATC,
+	TEGRA_PINGROUP_ATD,
+	TEGRA_PINGROUP_ATE,
+	TEGRA_PINGROUP_CDEV1,
+	TEGRA_PINGROUP_CDEV2,
+	TEGRA_PINGROUP_CRTP,
+	TEGRA_PINGROUP_CSUS,
+	TEGRA_PINGROUP_DAP1,
+	TEGRA_PINGROUP_DAP2,
+	TEGRA_PINGROUP_DAP3,
+	TEGRA_PINGROUP_DAP4,
+	TEGRA_PINGROUP_DDC,
+	TEGRA_PINGROUP_DTA,
+	TEGRA_PINGROUP_DTB,
+	TEGRA_PINGROUP_DTC,
+	TEGRA_PINGROUP_DTD,
+	TEGRA_PINGROUP_DTE,
+	TEGRA_PINGROUP_DTF,
+	TEGRA_PINGROUP_GMA,
+	TEGRA_PINGROUP_GMB,
+	TEGRA_PINGROUP_GMC,
+	TEGRA_PINGROUP_GMD,
+	TEGRA_PINGROUP_GME,
+	TEGRA_PINGROUP_GPU,
+	TEGRA_PINGROUP_GPU7,
+	TEGRA_PINGROUP_GPV,
+	TEGRA_PINGROUP_HDINT,
+	TEGRA_PINGROUP_I2CP,
+	TEGRA_PINGROUP_IRRX,
+	TEGRA_PINGROUP_IRTX,
+	TEGRA_PINGROUP_KBCA,
+	TEGRA_PINGROUP_KBCB,
+	TEGRA_PINGROUP_KBCC,
+	TEGRA_PINGROUP_KBCD,
+	TEGRA_PINGROUP_KBCE,
+	TEGRA_PINGROUP_KBCF,
+	TEGRA_PINGROUP_LCSN,
+	TEGRA_PINGROUP_LD0,
+	TEGRA_PINGROUP_LD1,
+	TEGRA_PINGROUP_LD10,
+	TEGRA_PINGROUP_LD11,
+	TEGRA_PINGROUP_LD12,
+	TEGRA_PINGROUP_LD13,
+	TEGRA_PINGROUP_LD14,
+	TEGRA_PINGROUP_LD15,
+	TEGRA_PINGROUP_LD16,
+	TEGRA_PINGROUP_LD17,
+	TEGRA_PINGROUP_LD2,
+	TEGRA_PINGROUP_LD3,
+	TEGRA_PINGROUP_LD4,
+	TEGRA_PINGROUP_LD5,
+	TEGRA_PINGROUP_LD6,
+	TEGRA_PINGROUP_LD7,
+	TEGRA_PINGROUP_LD8,
+	TEGRA_PINGROUP_LD9,
+	TEGRA_PINGROUP_LDC,
+	TEGRA_PINGROUP_LDI,
+	TEGRA_PINGROUP_LHP0,
+	TEGRA_PINGROUP_LHP1,
+	TEGRA_PINGROUP_LHP2,
+	TEGRA_PINGROUP_LHS,
+	TEGRA_PINGROUP_LM0,
+	TEGRA_PINGROUP_LM1,
+	TEGRA_PINGROUP_LPP,
+	TEGRA_PINGROUP_LPW0,
+	TEGRA_PINGROUP_LPW1,
+	TEGRA_PINGROUP_LPW2,
+	TEGRA_PINGROUP_LSC0,
+	TEGRA_PINGROUP_LSC1,
+	TEGRA_PINGROUP_LSCK,
+	TEGRA_PINGROUP_LSDA,
+	TEGRA_PINGROUP_LSDI,
+	TEGRA_PINGROUP_LSPI,
+	TEGRA_PINGROUP_LVP0,
+	TEGRA_PINGROUP_LVP1,
+	TEGRA_PINGROUP_LVS,
+	TEGRA_PINGROUP_OWC,
+	TEGRA_PINGROUP_PMC,
+	TEGRA_PINGROUP_PTA,
+	TEGRA_PINGROUP_RM,
+	TEGRA_PINGROUP_SDB,
+	TEGRA_PINGROUP_SDC,
+	TEGRA_PINGROUP_SDD,
+	TEGRA_PINGROUP_SDIO1,
+	TEGRA_PINGROUP_SLXA,
+	TEGRA_PINGROUP_SLXC,
+	TEGRA_PINGROUP_SLXD,
+	TEGRA_PINGROUP_SLXK,
+	TEGRA_PINGROUP_SPDI,
+	TEGRA_PINGROUP_SPDO,
+	TEGRA_PINGROUP_SPIA,
+	TEGRA_PINGROUP_SPIB,
+	TEGRA_PINGROUP_SPIC,
+	TEGRA_PINGROUP_SPID,
+	TEGRA_PINGROUP_SPIE,
+	TEGRA_PINGROUP_SPIF,
+	TEGRA_PINGROUP_SPIG,
+	TEGRA_PINGROUP_SPIH,
+	TEGRA_PINGROUP_UAA,
+	TEGRA_PINGROUP_UAB,
+	TEGRA_PINGROUP_UAC,
+	TEGRA_PINGROUP_UAD,
+	TEGRA_PINGROUP_UCA,
+	TEGRA_PINGROUP_UCB,
+	TEGRA_PINGROUP_UDA,
+	/* these pin groups only have pullup and pull down control */
+	TEGRA_PINGROUP_CK32,
+	TEGRA_PINGROUP_DDRC,
+	TEGRA_PINGROUP_PMCA,
+	TEGRA_PINGROUP_PMCB,
+	TEGRA_PINGROUP_PMCC,
+	TEGRA_PINGROUP_PMCD,
+	TEGRA_PINGROUP_PMCE,
+	TEGRA_PINGROUP_XM2C,
+	TEGRA_PINGROUP_XM2D,
+	TEGRA_MAX_PINGROUP,
+};
+
+enum tegra_mux_func {
+	TEGRA_MUX_RSVD = 0x8000,
+	TEGRA_MUX_RSVD1 = 0x8000,
+	TEGRA_MUX_RSVD2 = 0x8001,
+	TEGRA_MUX_RSVD3 = 0x8002,
+	TEGRA_MUX_RSVD4 = 0x8003,
+	TEGRA_MUX_NONE = -1,
+	TEGRA_MUX_AHB_CLK,
+	TEGRA_MUX_APB_CLK,
+	TEGRA_MUX_AUDIO_SYNC,
+	TEGRA_MUX_CRT,
+	TEGRA_MUX_DAP1,
+	TEGRA_MUX_DAP2,
+	TEGRA_MUX_DAP3,
+	TEGRA_MUX_DAP4,
+	TEGRA_MUX_DAP5,
+	TEGRA_MUX_DISPLAYA,
+	TEGRA_MUX_DISPLAYB,
+	TEGRA_MUX_EMC_TEST0_DLL,
+	TEGRA_MUX_EMC_TEST1_DLL,
+	TEGRA_MUX_GMI,
+	TEGRA_MUX_GMI_INT,
+	TEGRA_MUX_HDMI,
+	TEGRA_MUX_I2C,
+	TEGRA_MUX_I2C2,
+	TEGRA_MUX_I2C3,
+	TEGRA_MUX_IDE,
+	TEGRA_MUX_IRDA,
+	TEGRA_MUX_KBC,
+	TEGRA_MUX_MIO,
+	TEGRA_MUX_MIPI_HS,
+	TEGRA_MUX_NAND,
+	TEGRA_MUX_OSC,
+	TEGRA_MUX_OWR,
+	TEGRA_MUX_PCIE,
+	TEGRA_MUX_PLLA_OUT,
+	TEGRA_MUX_PLLC_OUT1,
+	TEGRA_MUX_PLLM_OUT1,
+	TEGRA_MUX_PLLP_OUT2,
+	TEGRA_MUX_PLLP_OUT3,
+	TEGRA_MUX_PLLP_OUT4,
+	TEGRA_MUX_PWM,
+	TEGRA_MUX_PWR_INTR,
+	TEGRA_MUX_PWR_ON,
+	TEGRA_MUX_RTCK,
+	TEGRA_MUX_SDIO1,
+	TEGRA_MUX_SDIO2,
+	TEGRA_MUX_SDIO3,
+	TEGRA_MUX_SDIO4,
+	TEGRA_MUX_SFLASH,
+	TEGRA_MUX_SPDIF,
+	TEGRA_MUX_SPI1,
+	TEGRA_MUX_SPI2,
+	TEGRA_MUX_SPI2_ALT,
+	TEGRA_MUX_SPI3,
+	TEGRA_MUX_SPI4,
+	TEGRA_MUX_TRACE,
+	TEGRA_MUX_TWC,
+	TEGRA_MUX_UARTA,
+	TEGRA_MUX_UARTB,
+	TEGRA_MUX_UARTC,
+	TEGRA_MUX_UARTD,
+	TEGRA_MUX_UARTE,
+	TEGRA_MUX_ULPI,
+	TEGRA_MUX_VI,
+	TEGRA_MUX_VI_SENSOR_CLK,
+	TEGRA_MUX_XIO,
+	TEGRA_MAX_MUX,
+};
+
+enum tegra_pullupdown {
+	TEGRA_PUPD_NORMAL = 0,
+	TEGRA_PUPD_PULL_DOWN,
+	TEGRA_PUPD_PULL_UP,
+};
+
+enum tegra_tristate {
+	TEGRA_TRI_NORMAL = 0,
+	TEGRA_TRI_TRISTATE = 1,
+};
+
+struct tegra_pingroup_config {
+	enum tegra_pingroup	pingroup;
+	enum tegra_mux_func	func;
+	enum tegra_pullupdown	pupd;
+	enum tegra_tristate	tristate;
+};
+
+enum tegra_slew {
+	TEGRA_SLEW_FASTEST = 0,
+	TEGRA_SLEW_FAST,
+	TEGRA_SLEW_SLOW,
+	TEGRA_SLEW_SLOWEST,
+	TEGRA_MAX_SLEW,
+};
+
+enum tegra_pull_strength {
+	TEGRA_PULL_0 = 0,
+	TEGRA_PULL_1,
+	TEGRA_PULL_2,
+	TEGRA_PULL_3,
+	TEGRA_PULL_4,
+	TEGRA_PULL_5,
+	TEGRA_PULL_6,
+	TEGRA_PULL_7,
+	TEGRA_PULL_8,
+	TEGRA_PULL_9,
+	TEGRA_PULL_10,
+	TEGRA_PULL_11,
+	TEGRA_PULL_12,
+	TEGRA_PULL_13,
+	TEGRA_PULL_14,
+	TEGRA_PULL_15,
+	TEGRA_PULL_16,
+	TEGRA_PULL_17,
+	TEGRA_PULL_18,
+	TEGRA_PULL_19,
+	TEGRA_PULL_20,
+	TEGRA_PULL_21,
+	TEGRA_PULL_22,
+	TEGRA_PULL_23,
+	TEGRA_PULL_24,
+	TEGRA_PULL_25,
+	TEGRA_PULL_26,
+	TEGRA_PULL_27,
+	TEGRA_PULL_28,
+	TEGRA_PULL_29,
+	TEGRA_PULL_30,
+	TEGRA_PULL_31,
+	TEGRA_MAX_PULL,
+};
+
+enum tegra_drive_pingroup {
+	TEGRA_DRIVE_PINGROUP_AO1 = 0,
+	TEGRA_DRIVE_PINGROUP_AO2,
+	TEGRA_DRIVE_PINGROUP_AT1,
+	TEGRA_DRIVE_PINGROUP_AT2,
+	TEGRA_DRIVE_PINGROUP_CDEV1,
+	TEGRA_DRIVE_PINGROUP_CDEV2,
+	TEGRA_DRIVE_PINGROUP_CSUS,
+	TEGRA_DRIVE_PINGROUP_DAP1,
+	TEGRA_DRIVE_PINGROUP_DAP2,
+	TEGRA_DRIVE_PINGROUP_DAP3,
+	TEGRA_DRIVE_PINGROUP_DAP4,
+	TEGRA_DRIVE_PINGROUP_DBG,
+	TEGRA_DRIVE_PINGROUP_LCD1,
+	TEGRA_DRIVE_PINGROUP_LCD2,
+	TEGRA_DRIVE_PINGROUP_SDMMC2,
+	TEGRA_DRIVE_PINGROUP_SDMMC3,
+	TEGRA_DRIVE_PINGROUP_SPI,
+	TEGRA_DRIVE_PINGROUP_UAA,
+	TEGRA_DRIVE_PINGROUP_UAB,
+	TEGRA_DRIVE_PINGROUP_UART2,
+	TEGRA_DRIVE_PINGROUP_UART3,
+	TEGRA_DRIVE_PINGROUP_VI1,
+	TEGRA_DRIVE_PINGROUP_VI2,
+	TEGRA_DRIVE_PINGROUP_XM2A,
+	TEGRA_DRIVE_PINGROUP_XM2C,
+	TEGRA_DRIVE_PINGROUP_XM2D,
+	TEGRA_DRIVE_PINGROUP_XM2CLK,
+	TEGRA_DRIVE_PINGROUP_MEMCOMP,
+	TEGRA_MAX_DRIVE_PINGROUP,
+};
+
+enum tegra_drive {
+	TEGRA_DRIVE_DIV_8 = 0,
+	TEGRA_DRIVE_DIV_4,
+	TEGRA_DRIVE_DIV_2,
+	TEGRA_DRIVE_DIV_1,
+	TEGRA_MAX_DRIVE,
+};
+
+enum tegra_hsm {
+	TEGRA_HSM_DISABLE = 0,
+	TEGRA_HSM_ENABLE,
+};
+
+enum tegra_schmitt {
+	TEGRA_SCHMITT_DISABLE = 0,
+	TEGRA_SCHMITT_ENABLE,
+};
+
+struct tegra_drive_pingroup_config {
+	enum tegra_drive_pingroup 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 tegra_pinmux_set_func(enum tegra_pingroup pg, enum tegra_mux_func func);
+int tegra_pinmux_set_tristate(enum tegra_pingroup pg, enum tegra_tristate tristate);
+int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg, enum tegra_pullupdown pupd);
+
+void tegra_pinmux_config_pingroup(enum tegra_pingroup pingroup,
+	enum tegra_mux_func func, enum tegra_pullupdown pupd,
+	enum tegra_tristate tristate);
+
+void tegra_pinmux_config_table(struct tegra_pingroup_config *config, int len);
+
+void tegra_drive_pinmux_config_table(struct tegra_drive_pingroup_config *config,
+	int len);
+
+#endif
+