--- /dev/null
+/*
+ * (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_ */
Code Review / kvmfornfv.git / blobdiff