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-rw-r--r--drivers/pinctrl/freescale/pinctrl-imx.h135
1 files changed, 135 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-imx.h b/drivers/pinctrl/freescale/pinctrl-imx.h
new file mode 100644
index 0000000000..f65ff45b40
--- /dev/null
+++ b/drivers/pinctrl/freescale/pinctrl-imx.h
@@ -0,0 +1,135 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * IMX pinmux core definitions
+ *
+ * Copyright (C) 2012 Freescale Semiconductor, Inc.
+ * Copyright (C) 2012 Linaro Ltd.
+ *
+ * Author: Dong Aisheng <dong.aisheng@linaro.org>
+ */
+
+#ifndef __DRIVERS_PINCTRL_IMX_H
+#define __DRIVERS_PINCTRL_IMX_H
+
+#include <linux/pinctrl/pinmux.h>
+
+struct platform_device;
+
+extern struct pinmux_ops imx_pmx_ops;
+extern const struct dev_pm_ops imx_pinctrl_pm_ops;
+
+/**
+ * struct imx_pin_mmio - MMIO pin configurations
+ * @mux_mode: the mux mode for this pin.
+ * @input_reg: the select input register offset for this pin if any
+ * 0 if no select input setting needed.
+ * @input_val: the select input value for this pin.
+ * @configs: the config for this pin.
+ */
+struct imx_pin_mmio {
+ unsigned int mux_mode;
+ u16 input_reg;
+ unsigned int input_val;
+ unsigned long config;
+};
+
+/**
+ * struct imx_pin_scu - SCU pin configurations
+ * @mux: the mux mode for this pin.
+ * @configs: the config for this pin.
+ */
+struct imx_pin_scu {
+ unsigned int mux_mode;
+ unsigned long config;
+};
+
+/**
+ * struct imx_pin - describes a single i.MX pin
+ * @pin: the pin_id of this pin
+ * @conf: config type of this pin, either mmio or scu
+ */
+struct imx_pin {
+ unsigned int pin;
+ union {
+ struct imx_pin_mmio mmio;
+ struct imx_pin_scu scu;
+ } conf;
+};
+
+/**
+ * struct imx_pin_reg - describe a pin reg map
+ * @mux_reg: mux register offset
+ * @conf_reg: config register offset
+ */
+struct imx_pin_reg {
+ s16 mux_reg;
+ s16 conf_reg;
+};
+
+/**
+ * @dev: a pointer back to containing device
+ * @base: the offset to the controller in virtual memory
+ */
+struct imx_pinctrl {
+ struct device *dev;
+ struct pinctrl_dev *pctl;
+ void __iomem *base;
+ void __iomem *input_sel_base;
+ const struct imx_pinctrl_soc_info *info;
+ struct imx_pin_reg *pin_regs;
+ unsigned int group_index;
+ struct mutex mutex;
+};
+
+struct imx_pinctrl_soc_info {
+ const struct pinctrl_pin_desc *pins;
+ unsigned int npins;
+ unsigned int flags;
+ const char *gpr_compatible;
+
+ /* MUX_MODE shift and mask in case SHARE_MUX_CONF_REG */
+ unsigned int mux_mask;
+ u8 mux_shift;
+
+ int (*gpio_set_direction)(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset,
+ bool input);
+ int (*imx_pinconf_get)(struct pinctrl_dev *pctldev, unsigned int pin_id,
+ unsigned long *config);
+ int (*imx_pinconf_set)(struct pinctrl_dev *pctldev, unsigned int pin_id,
+ unsigned long *configs, unsigned int num_configs);
+ void (*imx_pinctrl_parse_pin)(struct imx_pinctrl *ipctl,
+ unsigned int *pin_id, struct imx_pin *pin,
+ const __be32 **list_p);
+};
+
+#define SHARE_MUX_CONF_REG BIT(0)
+#define ZERO_OFFSET_VALID BIT(1)
+#define IMX_USE_SCU BIT(2)
+
+#define NO_MUX 0x0
+#define NO_PAD 0x0
+
+#define IMX_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin)
+
+#define PAD_CTL_MASK(len) ((1 << len) - 1)
+#define IMX_MUX_MASK 0x7
+#define IOMUXC_CONFIG_SION (0x1 << 4)
+
+int imx_pinctrl_probe(struct platform_device *pdev,
+ const struct imx_pinctrl_soc_info *info);
+
+#define BM_PAD_CTL_GP_ENABLE BIT(30)
+#define BM_PAD_CTL_IFMUX_ENABLE BIT(31)
+#define BP_PAD_CTL_IFMUX 27
+
+int imx_pinctrl_sc_ipc_init(struct platform_device *pdev);
+int imx_pinconf_get_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
+ unsigned long *config);
+int imx_pinconf_set_scu(struct pinctrl_dev *pctldev, unsigned pin_id,
+ unsigned long *configs, unsigned num_configs);
+void imx_pinctrl_parse_pin_scu(struct imx_pinctrl *ipctl,
+ unsigned int *pin_id, struct imx_pin *pin,
+ const __be32 **list_p);
+#endif /* __DRIVERS_PINCTRL_IMX_H */