1 files changed, 185 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch-tegra/pinmux.h b/arch/arm/include/asm/arch-tegra/pinmux.h
new file mode 100644
index 0000000000..035159d665
--- /dev/null
+++ b/arch/arm/include/asm/arch-tegra/pinmux.h
@@ -0,0 +1,185 @@
+/*
+ * (C) Copyright 2010-2014
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ */
+
+#ifndef _TEGRA_PINMUX_H_
+#define _TEGRA_PINMUX_H_
+
+#include <asm/arch/tegra.h>
+
+/* The pullup/pulldown state of a pin group */
+enum pmux_pull {
+	PMUX_PULL_NORMAL = 0,
+	PMUX_PULL_DOWN,
+	PMUX_PULL_UP,
+};
+
+/* Defines whether a pin group is tristated or in normal operation */
+enum pmux_tristate {
+	PMUX_TRI_NORMAL = 0,
+	PMUX_TRI_TRISTATE = 1,
+};
+
+#ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC
+enum pmux_pin_io {
+	PMUX_PIN_OUTPUT = 0,
+	PMUX_PIN_INPUT = 1,
+	PMUX_PIN_NONE,
+};
+
+enum pmux_pin_lock {
+	PMUX_PIN_LOCK_DEFAULT = 0,
+	PMUX_PIN_LOCK_DISABLE,
+	PMUX_PIN_LOCK_ENABLE,
+};
+
+enum pmux_pin_od {
+	PMUX_PIN_OD_DEFAULT = 0,
+	PMUX_PIN_OD_DISABLE,
+	PMUX_PIN_OD_ENABLE,
+};
+
+enum pmux_pin_ioreset {
+	PMUX_PIN_IO_RESET_DEFAULT = 0,
+	PMUX_PIN_IO_RESET_DISABLE,
+	PMUX_PIN_IO_RESET_ENABLE,
+};
+
+#ifdef TEGRA_PMX_HAS_RCV_SEL
+enum pmux_pin_rcv_sel {
+	PMUX_PIN_RCV_SEL_DEFAULT = 0,
+	PMUX_PIN_RCV_SEL_NORMAL,
+	PMUX_PIN_RCV_SEL_HIGH,
+};
+#endif /* TEGRA_PMX_HAS_RCV_SEL */
+#endif /* TEGRA_PMX_HAS_PIN_IO_BIT_ETC */
+
+/*
+ * This defines the configuration for a pin, including the function assigned,
+ * pull up/down settings and tristate settings. Having set up one of these
+ * you can call pinmux_config_pingroup() to configure a pin in one step. Also
+ * available is pinmux_config_table() to configure a list of pins.
+ */
+struct pmux_pingrp_config {
+	u32 pingrp:16;		/* pin group PMUX_PINGRP_...        */
+	u32 func:8;		/* function to assign PMUX_FUNC_... */
+	u32 pull:2;		/* pull up/down/normal PMUX_PULL_...*/
+	u32 tristate:2;		/* tristate or normal PMUX_TRI_...  */
+#ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC
+	u32 io:2;		/* input or output PMUX_PIN_...     */
+	u32 lock:2;		/* lock enable/disable PMUX_PIN...  */
+	u32 od:2;		/* open-drain or push-pull driver   */
+	u32 ioreset:2;		/* input/output reset PMUX_PIN...   */
+#ifdef TEGRA_PMX_HAS_RCV_SEL
+	u32 rcv_sel:2;		/* select between High and Normal  */
+				/* VIL/VIH receivers */
+#endif
+#endif
+};
+
+/* Set the mux function for a pin group */
+void pinmux_set_func(enum pmux_pingrp pin, enum pmux_func func);
+
+/* Set the pull up/down feature for a pin group */
+void pinmux_set_pullupdown(enum pmux_pingrp pin, enum pmux_pull pupd);
+
+/* Set a pin group to tristate */
+void pinmux_tristate_enable(enum pmux_pingrp pin);
+
+/* Set a pin group to normal (non tristate) */
+void pinmux_tristate_disable(enum pmux_pingrp pin);
+
+#ifdef TEGRA_PMX_HAS_PIN_IO_BIT_ETC
+/* Set a pin group as input or output */
+void pinmux_set_io(enum pmux_pingrp pin, enum pmux_pin_io io);
+#endif
+
+/**
+ * Configure a list of pin groups
+ *
+ * @param config	List of config items
+ * @param len		Number of config items in list
+ */
+void pinmux_config_pingrp_table(const struct pmux_pingrp_config *config,
+				int len);
+
+#ifdef TEGRA_PMX_HAS_DRVGRPS
+
+#define PMUX_SLWF_MIN	0
+#define PMUX_SLWF_MAX	3
+#define PMUX_SLWF_NONE	-1
+
+#define PMUX_SLWR_MIN	0
+#define PMUX_SLWR_MAX	3
+#define PMUX_SLWR_NONE	-1
+
+#define PMUX_DRVUP_MIN	0
+#define PMUX_DRVUP_MAX	127
+#define PMUX_DRVUP_NONE	-1
+
+#define PMUX_DRVDN_MIN	0
+#define PMUX_DRVDN_MAX	127
+#define PMUX_DRVDN_NONE	-1
+
+/* Defines a pin group cfg's low-power mode select */
+enum pmux_lpmd {
+	PMUX_LPMD_X8 = 0,
+	PMUX_LPMD_X4,
+	PMUX_LPMD_X2,
+	PMUX_LPMD_X,
+	PMUX_LPMD_NONE = -1,
+};
+
+/* Defines whether a pin group cfg's schmidt is enabled or not */
+enum pmux_schmt {
+	PMUX_SCHMT_DISABLE = 0,
+	PMUX_SCHMT_ENABLE = 1,
+	PMUX_SCHMT_NONE = -1,
+};
+
+/* Defines whether a pin group cfg's high-speed mode is enabled or not */
+enum pmux_hsm {
+	PMUX_HSM_DISABLE = 0,
+	PMUX_HSM_ENABLE = 1,
+	PMUX_HSM_NONE = -1,
+};
+
+/*
+ * This defines the configuration for a pin group's pad control config
+ */
+struct pmux_drvgrp_config {
+	u32 drvgrp:16;	/* pin group PMUX_DRVGRP_x   */
+	u32 slwf:3;		/* falling edge slew         */
+	u32 slwr:3;		/* rising edge slew          */
+	u32 drvup:8;		/* pull-up drive strength    */
+	u32 drvdn:8;		/* pull-down drive strength  */
+	u32 lpmd:3;		/* low-power mode selection  */
+	u32 schmt:2;		/* schmidt enable            */
+	u32 hsm:2;		/* high-speed mode enable    */
+};
+
+/**
+ * Set the GP pad configs
+ *
+ * @param config	List of config items
+ * @param len		Number of config items in list
+ */
+void pinmux_config_drvgrp_table(const struct pmux_drvgrp_config *config,
+				int len);
+
+#endif /* TEGRA_PMX_HAS_DRVGRPS */
+
+struct pmux_pingrp_desc {
+	u8 funcs[4];
+#if defined(CONFIG_TEGRA20)
+	u8 ctl_id;
+	u8 pull_id;
+#endif /* CONFIG_TEGRA20 */
+};
+
+extern const struct pmux_pingrp_desc *tegra_soc_pingroups;
+
+#endif /* _TEGRA_PINMUX_H_ */