2 * Copyright (C) 2015 Masahiro Yamada <yamada.masahiro@socionext.com>
4 * SPDX-License-Identifier: GPL-2.0+
7 #ifndef __PINCTRL_UNIPHIER_H__
8 #define __PINCTRL_UNIPHIER_H__
10 #include <linux/bitops.h>
11 #include <linux/bug.h>
12 #include <linux/kernel.h>
13 #include <linux/types.h>
15 #define UNIPHIER_PINCTRL_PINMUX_BASE 0x1000
16 #define UNIPHIER_PINCTRL_LOAD_PINMUX 0x1700
17 #define UNIPHIER_PINCTRL_IECTRL 0x1d00
19 #define UNIPHIER_PIN_ATTR_PACKED(iectrl) (iectrl)
21 static inline unsigned int uniphier_pin_get_iectrl(unsigned long data)
27 * struct uniphier_pinctrl_pin - pin data for UniPhier SoC
30 * @data: additional per-pin data
32 struct uniphier_pinctrl_pin {
38 * struct uniphier_pinctrl_group - pin group data for UniPhier SoC
40 * @name: pin group name
41 * @pins: array of pins that belong to the group
42 * @num_pins: number of pins in the group
43 * @muxvals: array of values to be set to pinmux registers
45 struct uniphier_pinctrl_group {
53 * struct uniphier_pinctrl_socdata - SoC data for UniPhier pin controller
55 * @pins: array of pin data
56 * @pins_count: number of pin data
57 * @groups: array of pin group data
58 * @groups_count: number of pin group data
59 * @functions: array of pinmux function names
60 * @functions_count: number of pinmux functions
61 * @mux_bits: bit width of each pinmux register
62 * @reg_stride: stride of pinmux register address
63 * @caps: SoC-specific capability flag
65 struct uniphier_pinctrl_socdata {
66 const struct uniphier_pinctrl_pin *pins;
68 const struct uniphier_pinctrl_group *groups;
70 const char * const *functions;
73 #define UNIPHIER_PINCTRL_CAPS_PERPIN_IECTRL BIT(1)
74 #define UNIPHIER_PINCTRL_CAPS_DBGMUX_SEPARATE BIT(0)
77 #define UNIPHIER_PINCTRL_PIN(a, b) \
80 .data = UNIPHIER_PIN_ATTR_PACKED(b), \
83 #define __UNIPHIER_PINCTRL_GROUP(grp) \
87 .num_pins = ARRAY_SIZE(grp##_pins), \
88 .muxvals = grp##_muxvals + \
89 BUILD_BUG_ON_ZERO(ARRAY_SIZE(grp##_pins) != \
90 ARRAY_SIZE(grp##_muxvals)), \
93 #define __UNIPHIER_PINMUX_FUNCTION(func) #func
95 #ifdef CONFIG_SPL_BUILD
96 #define UNIPHIER_PINCTRL_GROUP(grp) { .name = NULL }
97 #define UNIPHIER_PINMUX_FUNCTION(func) NULL
99 #define UNIPHIER_PINCTRL_GROUP(grp) __UNIPHIER_PINCTRL_GROUP(grp)
100 #define UNIPHIER_PINMUX_FUNCTION(func) __UNIPHIER_PINMUX_FUNCTION(func)
103 #define UNIPHIER_PINCTRL_GROUP_SPL(grp) __UNIPHIER_PINCTRL_GROUP(grp)
104 #define UNIPHIER_PINMUX_FUNCTION_SPL(func) __UNIPHIER_PINMUX_FUNCTION(func)
107 * struct uniphier_pinctrl_priv - private data for UniPhier pinctrl driver
109 * @base: base address of the pinctrl device
110 * @socdata: SoC specific data
112 struct uniphier_pinctrl_priv {
114 struct uniphier_pinctrl_socdata *socdata;
117 extern const struct pinctrl_ops uniphier_pinctrl_ops;
119 int uniphier_pinctrl_probe(struct udevice *dev,
120 struct uniphier_pinctrl_socdata *socdata);
122 int uniphier_pinctrl_remove(struct udevice *dev);
124 #endif /* __PINCTRL_UNIPHIER_H__ */