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fae43399 MD |
1 | /* |
2 | * SuperH Pin Function Controller Support | |
3 | * | |
4 | * Copyright (c) 2008 Magnus Damm | |
5 | * | |
6 | * This file is subject to the terms and conditions of the GNU General Public | |
7 | * License. See the file "COPYING" in the main directory of this archive | |
8 | * for more details. | |
9 | */ | |
10 | ||
11 | #ifndef __SH_PFC_H | |
12 | #define __SH_PFC_H | |
13 | ||
72c7afa1 | 14 | #include <linux/stringify.h> |
fae43399 MD |
15 | #include <asm-generic/gpio.h> |
16 | ||
17 | typedef unsigned short pinmux_enum_t; | |
18 | typedef unsigned short pinmux_flag_t; | |
19 | ||
06d5631f PM |
20 | enum { |
21 | PINMUX_TYPE_NONE, | |
fae43399 | 22 | |
06d5631f PM |
23 | PINMUX_TYPE_FUNCTION, |
24 | PINMUX_TYPE_GPIO, | |
25 | PINMUX_TYPE_OUTPUT, | |
26 | PINMUX_TYPE_INPUT, | |
27 | PINMUX_TYPE_INPUT_PULLUP, | |
28 | PINMUX_TYPE_INPUT_PULLDOWN, | |
29 | ||
30 | PINMUX_FLAG_TYPE, /* must be last */ | |
31 | }; | |
fae43399 MD |
32 | |
33 | #define PINMUX_FLAG_DBIT_SHIFT 5 | |
34 | #define PINMUX_FLAG_DBIT (0x1f << PINMUX_FLAG_DBIT_SHIFT) | |
35 | #define PINMUX_FLAG_DREG_SHIFT 10 | |
36 | #define PINMUX_FLAG_DREG (0x3f << PINMUX_FLAG_DREG_SHIFT) | |
37 | ||
a373ed0a | 38 | struct pinmux_pin { |
051fae4b | 39 | const pinmux_enum_t enum_id; |
fae43399 | 40 | pinmux_flag_t flags; |
72c7afa1 | 41 | const char *name; |
fae43399 MD |
42 | }; |
43 | ||
a373ed0a LP |
44 | struct pinmux_func { |
45 | const pinmux_enum_t enum_id; | |
46 | const char *name; | |
47 | }; | |
48 | ||
380c2ed9 LP |
49 | #define PINMUX_GPIO(gpio, data_or_mark) \ |
50 | [gpio] = { \ | |
51 | .name = __stringify(gpio), \ | |
52 | .enum_id = data_or_mark, \ | |
53 | .flags = PINMUX_TYPE_GPIO \ | |
54 | } | |
a373ed0a LP |
55 | #define PINMUX_GPIO_FN(gpio, base, data_or_mark) \ |
56 | [gpio - (base)] = { \ | |
380c2ed9 LP |
57 | .name = __stringify(gpio), \ |
58 | .enum_id = data_or_mark, \ | |
380c2ed9 | 59 | } |
06d5631f | 60 | |
fae43399 MD |
61 | #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0 |
62 | ||
63 | struct pinmux_cfg_reg { | |
64 | unsigned long reg, reg_width, field_width; | |
65 | unsigned long *cnt; | |
66 | pinmux_enum_t *enum_ids; | |
f78a26f5 | 67 | unsigned long *var_field_width; |
fae43399 MD |
68 | }; |
69 | ||
70 | #define PINMUX_CFG_REG(name, r, r_width, f_width) \ | |
71 | .reg = r, .reg_width = r_width, .field_width = f_width, \ | |
72 | .cnt = (unsigned long [r_width / f_width]) {}, \ | |
f78a26f5 MD |
73 | .enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) |
74 | ||
75 | #define PINMUX_CFG_REG_VAR(name, r, r_width, var_fw0, var_fwn...) \ | |
76 | .reg = r, .reg_width = r_width, \ | |
77 | .cnt = (unsigned long [r_width]) {}, \ | |
78 | .var_field_width = (unsigned long [r_width]) { var_fw0, var_fwn, 0 }, \ | |
79 | .enum_ids = (pinmux_enum_t []) | |
fae43399 MD |
80 | |
81 | struct pinmux_data_reg { | |
82 | unsigned long reg, reg_width, reg_shadow; | |
83 | pinmux_enum_t *enum_ids; | |
b0e10211 | 84 | void __iomem *mapped_reg; |
fae43399 MD |
85 | }; |
86 | ||
87 | #define PINMUX_DATA_REG(name, r, r_width) \ | |
88 | .reg = r, .reg_width = r_width, \ | |
89 | .enum_ids = (pinmux_enum_t [r_width]) \ | |
90 | ||
ad2a8e7e MD |
91 | struct pinmux_irq { |
92 | int irq; | |
93 | pinmux_enum_t *enum_ids; | |
94 | }; | |
95 | ||
96 | #define PINMUX_IRQ(irq_nr, ids...) \ | |
97 | { .irq = irq_nr, .enum_ids = (pinmux_enum_t []) { ids, 0 } } \ | |
98 | ||
fae43399 MD |
99 | struct pinmux_range { |
100 | pinmux_enum_t begin; | |
101 | pinmux_enum_t end; | |
102 | pinmux_enum_t force; | |
103 | }; | |
104 | ||
19bb7fe3 | 105 | struct sh_pfc_soc_info { |
fae43399 | 106 | char *name; |
fae43399 MD |
107 | struct pinmux_range input; |
108 | struct pinmux_range input_pd; | |
109 | struct pinmux_range input_pu; | |
110 | struct pinmux_range output; | |
fae43399 MD |
111 | struct pinmux_range function; |
112 | ||
a373ed0a | 113 | struct pinmux_pin *pins; |
caa5bac3 | 114 | unsigned int nr_pins; |
a373ed0a LP |
115 | struct pinmux_func *func_gpios; |
116 | unsigned int nr_func_gpios; | |
d7a7ca57 | 117 | |
fae43399 MD |
118 | struct pinmux_cfg_reg *cfg_regs; |
119 | struct pinmux_data_reg *data_regs; | |
120 | ||
121 | pinmux_enum_t *gpio_data; | |
122 | unsigned int gpio_data_size; | |
123 | ||
ad2a8e7e MD |
124 | struct pinmux_irq *gpio_irq; |
125 | unsigned int gpio_irq_size; | |
126 | ||
e499ada8 | 127 | unsigned long unlock_reg; |
fae43399 MD |
128 | }; |
129 | ||
b3c185a7 | 130 | enum { GPIO_CFG_DRYRUN, GPIO_CFG_REQ, GPIO_CFG_FREE }; |
fae43399 | 131 | |
972c3fb6 KM |
132 | /* helper macro for port */ |
133 | #define PORT_1(fn, pfx, sfx) fn(pfx, sfx) | |
134 | ||
135 | #define PORT_10(fn, pfx, sfx) \ | |
136 | PORT_1(fn, pfx##0, sfx), PORT_1(fn, pfx##1, sfx), \ | |
137 | PORT_1(fn, pfx##2, sfx), PORT_1(fn, pfx##3, sfx), \ | |
138 | PORT_1(fn, pfx##4, sfx), PORT_1(fn, pfx##5, sfx), \ | |
139 | PORT_1(fn, pfx##6, sfx), PORT_1(fn, pfx##7, sfx), \ | |
140 | PORT_1(fn, pfx##8, sfx), PORT_1(fn, pfx##9, sfx) | |
141 | ||
142 | #define PORT_90(fn, pfx, sfx) \ | |
143 | PORT_10(fn, pfx##1, sfx), PORT_10(fn, pfx##2, sfx), \ | |
144 | PORT_10(fn, pfx##3, sfx), PORT_10(fn, pfx##4, sfx), \ | |
145 | PORT_10(fn, pfx##5, sfx), PORT_10(fn, pfx##6, sfx), \ | |
146 | PORT_10(fn, pfx##7, sfx), PORT_10(fn, pfx##8, sfx), \ | |
147 | PORT_10(fn, pfx##9, sfx) | |
148 | ||
149 | #define _PORT_ALL(pfx, sfx) pfx##_##sfx | |
150 | #define _GPIO_PORT(pfx, sfx) PINMUX_GPIO(GPIO_PORT##pfx, PORT##pfx##_DATA) | |
151 | #define PORT_ALL(str) CPU_ALL_PORT(_PORT_ALL, PORT, str) | |
152 | #define GPIO_PORT_ALL() CPU_ALL_PORT(_GPIO_PORT, , unused) | |
a373ed0a | 153 | #define GPIO_FN(str) PINMUX_GPIO_FN(GPIO_FN_##str, PINMUX_FN_BASE, str##_MARK) |
972c3fb6 | 154 | |
bd8d0cba KM |
155 | /* helper macro for pinmux_enum_t */ |
156 | #define PORT_DATA_I(nr) \ | |
157 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_IN) | |
158 | ||
159 | #define PORT_DATA_I_PD(nr) \ | |
160 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ | |
161 | PORT##nr##_IN, PORT##nr##_IN_PD) | |
162 | ||
163 | #define PORT_DATA_I_PU(nr) \ | |
164 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ | |
165 | PORT##nr##_IN, PORT##nr##_IN_PU) | |
166 | ||
167 | #define PORT_DATA_I_PU_PD(nr) \ | |
168 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, \ | |
169 | PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU) | |
170 | ||
171 | #define PORT_DATA_O(nr) \ | |
172 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT) | |
173 | ||
174 | #define PORT_DATA_IO(nr) \ | |
175 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
176 | PORT##nr##_IN) | |
177 | ||
178 | #define PORT_DATA_IO_PD(nr) \ | |
179 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
180 | PORT##nr##_IN, PORT##nr##_IN_PD) | |
181 | ||
182 | #define PORT_DATA_IO_PU(nr) \ | |
183 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
184 | PORT##nr##_IN, PORT##nr##_IN_PU) | |
185 | ||
186 | #define PORT_DATA_IO_PU_PD(nr) \ | |
187 | PINMUX_DATA(PORT##nr##_DATA, PORT##nr##_FN0, PORT##nr##_OUT, \ | |
188 | PORT##nr##_IN, PORT##nr##_IN_PD, PORT##nr##_IN_PU) | |
189 | ||
9b49139b KM |
190 | /* helper macro for top 4 bits in PORTnCR */ |
191 | #define _PCRH(in, in_pd, in_pu, out) \ | |
192 | 0, (out), (in), 0, \ | |
193 | 0, 0, 0, 0, \ | |
194 | 0, 0, (in_pd), 0, \ | |
195 | 0, 0, (in_pu), 0 | |
196 | ||
197 | #define PORTCR(nr, reg) \ | |
198 | { \ | |
199 | PINMUX_CFG_REG("PORT" nr "CR", reg, 8, 4) { \ | |
200 | _PCRH(PORT##nr##_IN, PORT##nr##_IN_PD, \ | |
201 | PORT##nr##_IN_PU, PORT##nr##_OUT), \ | |
202 | PORT##nr##_FN0, PORT##nr##_FN1, \ | |
203 | PORT##nr##_FN2, PORT##nr##_FN3, \ | |
204 | PORT##nr##_FN4, PORT##nr##_FN5, \ | |
205 | PORT##nr##_FN6, PORT##nr##_FN7 } \ | |
206 | } | |
bd8d0cba | 207 | |
fae43399 | 208 | #endif /* __SH_PFC_H */ |