2 * SuperH Pin Function Controller Support
4 * Copyright (c) 2008 Magnus Damm
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
14 #include <linux/bug.h>
15 #include <linux/pinctrl/pinconf-generic.h>
16 #include <linux/stringify.h>
26 #define SH_PFC_PIN_CFG_INPUT (1 << 0)
27 #define SH_PFC_PIN_CFG_OUTPUT (1 << 1)
28 #define SH_PFC_PIN_CFG_PULL_UP (1 << 2)
29 #define SH_PFC_PIN_CFG_PULL_DOWN (1 << 3)
30 #define SH_PFC_PIN_CFG_IO_VOLTAGE (1 << 4)
31 #define SH_PFC_PIN_CFG_DRIVE_STRENGTH (1 << 5)
32 #define SH_PFC_PIN_CFG_NO_GPIO (1 << 31)
41 #define SH_PFC_PIN_GROUP(n) \
46 .nr_pins = ARRAY_SIZE(n##_pins), \
49 struct sh_pfc_pin_group
{
51 const unsigned int *pins
;
52 const unsigned int *mux
;
57 * Using union vin_data saves memory occupied by the VIN data pins.
58 * VIN_DATA_PIN_GROUP() is a macro used to describe the VIN pin groups
61 #define VIN_DATA_PIN_GROUP(n, s) \
64 .pins = n##_pins.data##s, \
65 .mux = n##_mux.data##s, \
66 .nr_pins = ARRAY_SIZE(n##_pins.data##s), \
70 unsigned int data24
[24];
71 unsigned int data20
[20];
72 unsigned int data16
[16];
73 unsigned int data12
[12];
74 unsigned int data10
[10];
75 unsigned int data8
[8];
76 unsigned int data4
[4];
79 #define SH_PFC_FUNCTION(n) \
82 .groups = n##_groups, \
83 .nr_groups = ARRAY_SIZE(n##_groups), \
86 struct sh_pfc_function
{
88 const char * const *groups
;
89 unsigned int nr_groups
;
97 struct pinmux_cfg_reg
{
99 u8 reg_width
, field_width
;
101 const u8
*var_field_width
;
105 * Describe a config register consisting of several fields of the same width
106 * - name: Register name (unused, for documentation purposes only)
107 * - r: Physical register address
108 * - r_width: Width of the register (in bits)
109 * - f_width: Width of the fixed-width register fields (in bits)
110 * This macro must be followed by initialization data: For each register field
111 * (from left to right, i.e. MSB to LSB), 2^f_width enum IDs must be specified,
112 * one for each possible combination of the register field bit values.
114 #define PINMUX_CFG_REG(name, r, r_width, f_width) \
115 .reg = r, .reg_width = r_width, .field_width = f_width, \
116 .enum_ids = (const u16 [(r_width / f_width) * (1 << f_width)])
119 * Describe a config register consisting of several fields of different widths
120 * - name: Register name (unused, for documentation purposes only)
121 * - r: Physical register address
122 * - r_width: Width of the register (in bits)
123 * - var_fw0, var_fwn...: List of widths of the register fields (in bits),
124 * From left to right (i.e. MSB to LSB)
125 * This macro must be followed by initialization data: For each register field
126 * (from left to right, i.e. MSB to LSB), 2^var_fwi enum IDs must be specified,
127 * one for each possible combination of the register field bit values.
129 #define PINMUX_CFG_REG_VAR(name, r, r_width, var_fw0, var_fwn...) \
130 .reg = r, .reg_width = r_width, \
131 .var_field_width = (const u8 [r_width]) \
132 { var_fw0, var_fwn, 0 }, \
133 .enum_ids = (const u16 [])
135 struct pinmux_drive_reg_field
{
141 struct pinmux_drive_reg
{
143 const struct pinmux_drive_reg_field fields
[8];
146 #define PINMUX_DRIVE_REG(name, r) \
150 struct pinmux_data_reg
{
157 * Describe a data register
158 * - name: Register name (unused, for documentation purposes only)
159 * - r: Physical register address
160 * - r_width: Width of the register (in bits)
161 * This macro must be followed by initialization data: For each register bit
162 * (from left to right, i.e. MSB to LSB), one enum ID must be specified.
164 #define PINMUX_DATA_REG(name, r, r_width) \
165 .reg = r, .reg_width = r_width, \
166 .enum_ids = (const u16 [r_width]) \
173 * Describe the mapping from GPIOs to a single IRQ
174 * - ids...: List of GPIOs that are mapped to the same IRQ
176 #define PINMUX_IRQ(ids...) \
177 { .gpios = (const short []) { ids, -1 } }
179 struct pinmux_range
{
187 struct sh_pfc_soc_operations
{
188 int (*init
)(struct sh_pfc
*pfc
);
189 unsigned int (*get_bias
)(struct sh_pfc
*pfc
, unsigned int pin
);
190 void (*set_bias
)(struct sh_pfc
*pfc
, unsigned int pin
,
192 int (*get_io_voltage
)(struct sh_pfc
*pfc
, unsigned int pin
);
193 int (*set_io_voltage
)(struct sh_pfc
*pfc
, unsigned int pin
,
197 struct sh_pfc_soc_info
{
199 const struct sh_pfc_soc_operations
*ops
;
201 struct pinmux_range input
;
202 struct pinmux_range output
;
203 struct pinmux_range function
;
205 const struct sh_pfc_pin
*pins
;
206 unsigned int nr_pins
;
207 const struct sh_pfc_pin_group
*groups
;
208 unsigned int nr_groups
;
209 const struct sh_pfc_function
*functions
;
210 unsigned int nr_functions
;
213 const struct pinmux_func
*func_gpios
;
214 unsigned int nr_func_gpios
;
217 const struct pinmux_cfg_reg
*cfg_regs
;
218 const struct pinmux_drive_reg
*drive_regs
;
219 const struct pinmux_data_reg
*data_regs
;
221 const u16
*pinmux_data
;
222 unsigned int pinmux_data_size
;
224 const struct pinmux_irq
*gpio_irq
;
225 unsigned int gpio_irq_size
;
230 /* -----------------------------------------------------------------------------
231 * Helper macros to create pin and port lists
235 * sh_pfc_soc_info pinmux_data array macros
239 * Describe generic pinmux data
240 * - data_or_mark: *_DATA or *_MARK enum ID
241 * - ids...: List of enum IDs to associate with data_or_mark
243 #define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0
246 * Describe a pinmux configuration without GPIO function that needs
247 * configuration in a Peripheral Function Select Register (IPSR)
248 * - ipsr: IPSR field (unused, for documentation purposes only)
249 * - fn: Function name, referring to a field in the IPSR
251 #define PINMUX_IPSR_NOGP(ipsr, fn) \
252 PINMUX_DATA(fn##_MARK, FN_##fn)
255 * Describe a pinmux configuration with GPIO function that needs configuration
256 * in both a Peripheral Function Select Register (IPSR) and in a
257 * GPIO/Peripheral Function Select Register (GPSR)
259 * - fn: Function name, also referring to the IPSR field
261 #define PINMUX_IPSR_GPSR(ipsr, fn) \
262 PINMUX_DATA(fn##_MARK, FN_##fn, FN_##ipsr)
265 * Describe a pinmux configuration without GPIO function that needs
266 * configuration in a Peripheral Function Select Register (IPSR), and where the
267 * pinmux function has a representation in a Module Select Register (MOD_SEL).
268 * - ipsr: IPSR field (unused, for documentation purposes only)
269 * - fn: Function name, also referring to the IPSR field
270 * - msel: Module selector
272 #define PINMUX_IPSR_NOGM(ipsr, fn, msel) \
273 PINMUX_DATA(fn##_MARK, FN_##fn, FN_##msel)
276 * Describe a pinmux configuration with GPIO function where the pinmux function
277 * has no representation in a Peripheral Function Select Register (IPSR), but
278 * instead solely depends on a group selection.
280 * - fn: Function name, also referring to the GPSR field
281 * - gsel: Group selector
283 #define PINMUX_IPSR_NOFN(gpsr, fn, gsel) \
284 PINMUX_DATA(fn##_MARK, FN_##gpsr, FN_##gsel)
287 * Describe a pinmux configuration with GPIO function that needs configuration
288 * in both a Peripheral Function Select Register (IPSR) and a GPIO/Peripheral
289 * Function Select Register (GPSR), and where the pinmux function has a
290 * representation in a Module Select Register (MOD_SEL).
292 * - fn: Function name, also referring to the IPSR field
293 * - msel: Module selector
295 #define PINMUX_IPSR_MSEL(ipsr, fn, msel) \
296 PINMUX_DATA(fn##_MARK, FN_##msel, FN_##fn, FN_##ipsr)
299 * Describe a pinmux configuration for a single-function pin with GPIO
301 * - fn: Function name
303 #define PINMUX_SINGLE(fn) \
304 PINMUX_DATA(fn##_MARK, FN_##fn)
307 * GP port style (32 ports banks)
310 #define PORT_GP_CFG_1(bank, pin, fn, sfx, cfg) fn(bank, pin, GP_##bank##_##pin, sfx, cfg)
311 #define PORT_GP_1(bank, pin, fn, sfx) PORT_GP_CFG_1(bank, pin, fn, sfx, 0)
313 #define PORT_GP_CFG_4(bank, fn, sfx, cfg) \
314 PORT_GP_CFG_1(bank, 0, fn, sfx, cfg), PORT_GP_CFG_1(bank, 1, fn, sfx, cfg), \
315 PORT_GP_CFG_1(bank, 2, fn, sfx, cfg), PORT_GP_CFG_1(bank, 3, fn, sfx, cfg)
316 #define PORT_GP_4(bank, fn, sfx) PORT_GP_CFG_4(bank, fn, sfx, 0)
318 #define PORT_GP_CFG_8(bank, fn, sfx, cfg) \
319 PORT_GP_CFG_4(bank, fn, sfx, cfg), \
320 PORT_GP_CFG_1(bank, 4, fn, sfx, cfg), PORT_GP_CFG_1(bank, 5, fn, sfx, cfg), \
321 PORT_GP_CFG_1(bank, 6, fn, sfx, cfg), PORT_GP_CFG_1(bank, 7, fn, sfx, cfg)
322 #define PORT_GP_8(bank, fn, sfx) PORT_GP_CFG_8(bank, fn, sfx, 0)
324 #define PORT_GP_CFG_9(bank, fn, sfx, cfg) \
325 PORT_GP_CFG_8(bank, fn, sfx, cfg), \
326 PORT_GP_CFG_1(bank, 8, fn, sfx, cfg)
327 #define PORT_GP_9(bank, fn, sfx) PORT_GP_CFG_9(bank, fn, sfx, 0)
329 #define PORT_GP_CFG_12(bank, fn, sfx, cfg) \
330 PORT_GP_CFG_8(bank, fn, sfx, cfg), \
331 PORT_GP_CFG_1(bank, 8, fn, sfx, cfg), PORT_GP_CFG_1(bank, 9, fn, sfx, cfg), \
332 PORT_GP_CFG_1(bank, 10, fn, sfx, cfg), PORT_GP_CFG_1(bank, 11, fn, sfx, cfg)
333 #define PORT_GP_12(bank, fn, sfx) PORT_GP_CFG_12(bank, fn, sfx, 0)
335 #define PORT_GP_CFG_14(bank, fn, sfx, cfg) \
336 PORT_GP_CFG_12(bank, fn, sfx, cfg), \
337 PORT_GP_CFG_1(bank, 12, fn, sfx, cfg), PORT_GP_CFG_1(bank, 13, fn, sfx, cfg)
338 #define PORT_GP_14(bank, fn, sfx) PORT_GP_CFG_14(bank, fn, sfx, 0)
340 #define PORT_GP_CFG_15(bank, fn, sfx, cfg) \
341 PORT_GP_CFG_14(bank, fn, sfx, cfg), \
342 PORT_GP_CFG_1(bank, 14, fn, sfx, cfg)
343 #define PORT_GP_15(bank, fn, sfx) PORT_GP_CFG_15(bank, fn, sfx, 0)
345 #define PORT_GP_CFG_16(bank, fn, sfx, cfg) \
346 PORT_GP_CFG_14(bank, fn, sfx, cfg), \
347 PORT_GP_CFG_1(bank, 14, fn, sfx, cfg), PORT_GP_CFG_1(bank, 15, fn, sfx, cfg)
348 #define PORT_GP_16(bank, fn, sfx) PORT_GP_CFG_16(bank, fn, sfx, 0)
350 #define PORT_GP_CFG_18(bank, fn, sfx, cfg) \
351 PORT_GP_CFG_16(bank, fn, sfx, cfg), \
352 PORT_GP_CFG_1(bank, 16, fn, sfx, cfg), PORT_GP_CFG_1(bank, 17, fn, sfx, cfg)
353 #define PORT_GP_18(bank, fn, sfx) PORT_GP_CFG_18(bank, fn, sfx, 0)
355 #define PORT_GP_CFG_26(bank, fn, sfx, cfg) \
356 PORT_GP_CFG_18(bank, fn, sfx, cfg), \
357 PORT_GP_CFG_1(bank, 18, fn, sfx, cfg), PORT_GP_CFG_1(bank, 19, fn, sfx, cfg), \
358 PORT_GP_CFG_1(bank, 20, fn, sfx, cfg), PORT_GP_CFG_1(bank, 21, fn, sfx, cfg), \
359 PORT_GP_CFG_1(bank, 22, fn, sfx, cfg), PORT_GP_CFG_1(bank, 23, fn, sfx, cfg), \
360 PORT_GP_CFG_1(bank, 24, fn, sfx, cfg), PORT_GP_CFG_1(bank, 25, fn, sfx, cfg)
361 #define PORT_GP_26(bank, fn, sfx) PORT_GP_CFG_26(bank, fn, sfx, 0)
363 #define PORT_GP_CFG_28(bank, fn, sfx, cfg) \
364 PORT_GP_CFG_26(bank, fn, sfx, cfg), \
365 PORT_GP_CFG_1(bank, 26, fn, sfx, cfg), PORT_GP_CFG_1(bank, 27, fn, sfx, cfg)
366 #define PORT_GP_28(bank, fn, sfx) PORT_GP_CFG_28(bank, fn, sfx, 0)
368 #define PORT_GP_CFG_30(bank, fn, sfx, cfg) \
369 PORT_GP_CFG_28(bank, fn, sfx, cfg), \
370 PORT_GP_CFG_1(bank, 28, fn, sfx, cfg), PORT_GP_CFG_1(bank, 29, fn, sfx, cfg)
371 #define PORT_GP_30(bank, fn, sfx) PORT_GP_CFG_30(bank, fn, sfx, 0)
373 #define PORT_GP_CFG_32(bank, fn, sfx, cfg) \
374 PORT_GP_CFG_30(bank, fn, sfx, cfg), \
375 PORT_GP_CFG_1(bank, 30, fn, sfx, cfg), PORT_GP_CFG_1(bank, 31, fn, sfx, cfg)
376 #define PORT_GP_32(bank, fn, sfx) PORT_GP_CFG_32(bank, fn, sfx, 0)
378 #define PORT_GP_32_REV(bank, fn, sfx) \
379 PORT_GP_1(bank, 31, fn, sfx), PORT_GP_1(bank, 30, fn, sfx), \
380 PORT_GP_1(bank, 29, fn, sfx), PORT_GP_1(bank, 28, fn, sfx), \
381 PORT_GP_1(bank, 27, fn, sfx), PORT_GP_1(bank, 26, fn, sfx), \
382 PORT_GP_1(bank, 25, fn, sfx), PORT_GP_1(bank, 24, fn, sfx), \
383 PORT_GP_1(bank, 23, fn, sfx), PORT_GP_1(bank, 22, fn, sfx), \
384 PORT_GP_1(bank, 21, fn, sfx), PORT_GP_1(bank, 20, fn, sfx), \
385 PORT_GP_1(bank, 19, fn, sfx), PORT_GP_1(bank, 18, fn, sfx), \
386 PORT_GP_1(bank, 17, fn, sfx), PORT_GP_1(bank, 16, fn, sfx), \
387 PORT_GP_1(bank, 15, fn, sfx), PORT_GP_1(bank, 14, fn, sfx), \
388 PORT_GP_1(bank, 13, fn, sfx), PORT_GP_1(bank, 12, fn, sfx), \
389 PORT_GP_1(bank, 11, fn, sfx), PORT_GP_1(bank, 10, fn, sfx), \
390 PORT_GP_1(bank, 9, fn, sfx), PORT_GP_1(bank, 8, fn, sfx), \
391 PORT_GP_1(bank, 7, fn, sfx), PORT_GP_1(bank, 6, fn, sfx), \
392 PORT_GP_1(bank, 5, fn, sfx), PORT_GP_1(bank, 4, fn, sfx), \
393 PORT_GP_1(bank, 3, fn, sfx), PORT_GP_1(bank, 2, fn, sfx), \
394 PORT_GP_1(bank, 1, fn, sfx), PORT_GP_1(bank, 0, fn, sfx)
396 /* GP_ALL(suffix) - Expand to a list of GP_#_#_suffix */
397 #define _GP_ALL(bank, pin, name, sfx, cfg) name##_##sfx
398 #define GP_ALL(str) CPU_ALL_PORT(_GP_ALL, str)
400 /* PINMUX_GPIO_GP_ALL - Expand to a list of sh_pfc_pin entries */
401 #define _GP_GPIO(bank, _pin, _name, sfx, cfg) \
403 .pin = (bank * 32) + _pin, \
404 .name = __stringify(_name), \
405 .enum_id = _name##_DATA, \
408 #define PINMUX_GPIO_GP_ALL() CPU_ALL_PORT(_GP_GPIO, unused)
410 /* PINMUX_DATA_GP_ALL - Expand to a list of name_DATA, name_FN marks */
411 #define _GP_DATA(bank, pin, name, sfx, cfg) PINMUX_DATA(name##_DATA, name##_FN)
412 #define PINMUX_DATA_GP_ALL() CPU_ALL_PORT(_GP_DATA, unused)
415 * PORT style (linear pin space)
418 #define PORT_1(pn, fn, pfx, sfx) fn(pn, pfx, sfx)
420 #define PORT_10(pn, fn, pfx, sfx) \
421 PORT_1(pn, fn, pfx##0, sfx), PORT_1(pn+1, fn, pfx##1, sfx), \
422 PORT_1(pn+2, fn, pfx##2, sfx), PORT_1(pn+3, fn, pfx##3, sfx), \
423 PORT_1(pn+4, fn, pfx##4, sfx), PORT_1(pn+5, fn, pfx##5, sfx), \
424 PORT_1(pn+6, fn, pfx##6, sfx), PORT_1(pn+7, fn, pfx##7, sfx), \
425 PORT_1(pn+8, fn, pfx##8, sfx), PORT_1(pn+9, fn, pfx##9, sfx)
427 #define PORT_90(pn, fn, pfx, sfx) \
428 PORT_10(pn+10, fn, pfx##1, sfx), PORT_10(pn+20, fn, pfx##2, sfx), \
429 PORT_10(pn+30, fn, pfx##3, sfx), PORT_10(pn+40, fn, pfx##4, sfx), \
430 PORT_10(pn+50, fn, pfx##5, sfx), PORT_10(pn+60, fn, pfx##6, sfx), \
431 PORT_10(pn+70, fn, pfx##7, sfx), PORT_10(pn+80, fn, pfx##8, sfx), \
432 PORT_10(pn+90, fn, pfx##9, sfx)
434 /* PORT_ALL(suffix) - Expand to a list of PORT_#_suffix */
435 #define _PORT_ALL(pn, pfx, sfx) pfx##_##sfx
436 #define PORT_ALL(str) CPU_ALL_PORT(_PORT_ALL, PORT, str)
438 /* PINMUX_GPIO - Expand to a sh_pfc_pin entry */
439 #define PINMUX_GPIO(_pin) \
442 .name = __stringify(GPIO_##_pin), \
443 .enum_id = _pin##_DATA, \
446 /* SH_PFC_PIN_CFG - Expand to a sh_pfc_pin entry (named PORT#) with config */
447 #define SH_PFC_PIN_CFG(_pin, cfgs) \
450 .name = __stringify(PORT##_pin), \
451 .enum_id = PORT##_pin##_DATA, \
455 /* SH_PFC_PIN_NAMED - Expand to a sh_pfc_pin entry with the given name */
456 #define SH_PFC_PIN_NAMED(row, col, _name) \
458 .pin = PIN_NUMBER(row, col), \
459 .name = __stringify(PIN_##_name), \
460 .configs = SH_PFC_PIN_CFG_NO_GPIO, \
463 /* PINMUX_DATA_ALL - Expand to a list of PORT_name_DATA, PORT_name_FN0,
464 * PORT_name_OUT, PORT_name_IN marks
466 #define _PORT_DATA(pn, pfx, sfx) \
467 PINMUX_DATA(PORT##pfx##_DATA, PORT##pfx##_FN0, \
468 PORT##pfx##_OUT, PORT##pfx##_IN)
469 #define PINMUX_DATA_ALL() CPU_ALL_PORT(_PORT_DATA, , unused)
471 /* GPIO_FN(name) - Expand to a sh_pfc_pin entry for a function GPIO */
472 #define PINMUX_GPIO_FN(gpio, base, data_or_mark) \
473 [gpio - (base)] = { \
474 .name = __stringify(gpio), \
475 .enum_id = data_or_mark, \
477 #define GPIO_FN(str) \
478 PINMUX_GPIO_FN(GPIO_FN_##str, PINMUX_FN_BASE, str##_MARK)
481 * PORTnCR helper macro for SH-Mobile/R-Mobile
483 #define PORTCR(nr, reg) \
485 PINMUX_CFG_REG_VAR("PORT" nr "CR", reg, 8, 2, 2, 1, 3) {\
486 /* PULMD[1:0], handled by .set_bias() */ \
489 0, PORT##nr##_OUT, PORT##nr##_IN, 0, \
490 /* SEC, not supported */ \
493 PORT##nr##_FN0, PORT##nr##_FN1, \
494 PORT##nr##_FN2, PORT##nr##_FN3, \
495 PORT##nr##_FN4, PORT##nr##_FN5, \
496 PORT##nr##_FN6, PORT##nr##_FN7 \
501 * GPIO number helper macro for R-Car
503 #define RCAR_GP_PIN(bank, pin) (((bank) * 32) + (pin))
505 #endif /* __SH_PFC_H */