1 // SPDX-License-Identifier: GPL-2.0-only
3 * Pistachio SoC pinctrl driver
5 * Copyright (C) 2014 Imagination Technologies Ltd.
6 * Copyright (C) 2014 Google, Inc.
9 #include <linux/gpio/driver.h>
10 #include <linux/interrupt.h>
12 #include <linux/irq.h>
14 #include <linux/of_irq.h>
15 #include <linux/pinctrl/pinconf.h>
16 #include <linux/pinctrl/pinconf-generic.h>
17 #include <linux/pinctrl/pinctrl.h>
18 #include <linux/pinctrl/pinmux.h>
19 #include <linux/platform_device.h>
20 #include <linux/slab.h>
21 #include <linux/spinlock.h>
23 #include "pinctrl-utils.h"
25 #define PADS_SCHMITT_EN0 0x000
26 #define PADS_SCHMITT_EN_REG(pin) (PADS_SCHMITT_EN0 + 0x4 * ((pin) / 32))
27 #define PADS_SCHMITT_EN_BIT(pin) BIT((pin) % 32)
29 #define PADS_PU_PD0 0x040
30 #define PADS_PU_PD_REG(pin) (PADS_PU_PD0 + 0x4 * ((pin) / 16))
31 #define PADS_PU_PD_SHIFT(pin) (2 * ((pin) % 16))
32 #define PADS_PU_PD_MASK 0x3
33 #define PADS_PU_PD_HIGHZ 0x0
34 #define PADS_PU_PD_UP 0x1
35 #define PADS_PU_PD_DOWN 0x2
36 #define PADS_PU_PD_BUS 0x3
38 #define PADS_FUNCTION_SELECT0 0x0c0
39 #define PADS_FUNCTION_SELECT1 0x0c4
40 #define PADS_FUNCTION_SELECT2 0x0c8
41 #define PADS_SCENARIO_SELECT 0x0f8
43 #define PADS_SLEW_RATE0 0x100
44 #define PADS_SLEW_RATE_REG(pin) (PADS_SLEW_RATE0 + 0x4 * ((pin) / 32))
45 #define PADS_SLEW_RATE_BIT(pin) BIT((pin) % 32)
47 #define PADS_DRIVE_STRENGTH0 0x120
48 #define PADS_DRIVE_STRENGTH_REG(pin) \
49 (PADS_DRIVE_STRENGTH0 + 0x4 * ((pin) / 16))
50 #define PADS_DRIVE_STRENGTH_SHIFT(pin) (2 * ((pin) % 16))
51 #define PADS_DRIVE_STRENGTH_MASK 0x3
52 #define PADS_DRIVE_STRENGTH_2MA 0x0
53 #define PADS_DRIVE_STRENGTH_4MA 0x1
54 #define PADS_DRIVE_STRENGTH_8MA 0x2
55 #define PADS_DRIVE_STRENGTH_12MA 0x3
57 #define GPIO_BANK_BASE(bank) (0x200 + 0x24 * (bank))
59 #define GPIO_BIT_EN 0x00
60 #define GPIO_OUTPUT_EN 0x04
61 #define GPIO_OUTPUT 0x08
62 #define GPIO_INPUT 0x0c
63 #define GPIO_INPUT_POLARITY 0x10
64 #define GPIO_INTERRUPT_TYPE 0x14
65 #define GPIO_INTERRUPT_TYPE_LEVEL 0x0
66 #define GPIO_INTERRUPT_TYPE_EDGE 0x1
67 #define GPIO_INTERRUPT_EDGE 0x18
68 #define GPIO_INTERRUPT_EDGE_SINGLE 0x0
69 #define GPIO_INTERRUPT_EDGE_DUAL 0x1
70 #define GPIO_INTERRUPT_EN 0x1c
71 #define GPIO_INTERRUPT_STATUS 0x20
73 struct pistachio_function {
75 const char * const *groups;
78 unsigned int nscenarios;
79 unsigned int scenario_reg;
80 unsigned int scenario_shift;
81 unsigned int scenario_mask;
84 struct pistachio_pin_group {
93 struct pistachio_gpio_bank {
94 struct pistachio_pinctrl *pctl;
96 unsigned int pin_base;
98 struct gpio_chip gpio_chip;
99 struct irq_chip irq_chip;
102 struct pistachio_pinctrl {
105 struct pinctrl_dev *pctldev;
106 const struct pinctrl_pin_desc *pins;
108 const struct pistachio_function *functions;
109 unsigned int nfunctions;
110 const struct pistachio_pin_group *groups;
111 unsigned int ngroups;
112 struct pistachio_gpio_bank *gpio_banks;
116 #define PISTACHIO_PIN_MFIO(p) (p)
117 #define PISTACHIO_PIN_TCK 90
118 #define PISTACHIO_PIN_TRSTN 91
119 #define PISTACHIO_PIN_TDI 92
120 #define PISTACHIO_PIN_TMS 93
121 #define PISTACHIO_PIN_TDO 94
122 #define PISTACHIO_PIN_JTAG_COMPLY 95
123 #define PISTACHIO_PIN_SAFE_MODE 96
124 #define PISTACHIO_PIN_POR_DISABLE 97
125 #define PISTACHIO_PIN_RESETN 98
127 #define MFIO_PIN_DESC(p) PINCTRL_PIN(PISTACHIO_PIN_MFIO(p), "mfio" #p)
129 static const struct pinctrl_pin_desc pistachio_pins[] = {
220 PINCTRL_PIN(PISTACHIO_PIN_TCK, "tck"),
221 PINCTRL_PIN(PISTACHIO_PIN_TRSTN, "trstn"),
222 PINCTRL_PIN(PISTACHIO_PIN_TDI, "tdi"),
223 PINCTRL_PIN(PISTACHIO_PIN_TMS, "tms"),
224 PINCTRL_PIN(PISTACHIO_PIN_TDO, "tdo"),
225 PINCTRL_PIN(PISTACHIO_PIN_JTAG_COMPLY, "jtag_comply"),
226 PINCTRL_PIN(PISTACHIO_PIN_SAFE_MODE, "safe_mode"),
227 PINCTRL_PIN(PISTACHIO_PIN_POR_DISABLE, "por_disable"),
228 PINCTRL_PIN(PISTACHIO_PIN_RESETN, "resetn"),
231 static const char * const pistachio_spim0_groups[] = {
232 "mfio1", "mfio2", "mfio8", "mfio9", "mfio10", "mfio28", "mfio29",
233 "mfio30", "mfio55", "mfio56", "mfio57",
236 static const char * const pistachio_spim1_groups[] = {
237 "mfio0", "mfio1", "mfio2", "mfio3", "mfio4", "mfio5", "mfio6",
238 "mfio7", "mfio31", "mfio55", "mfio56", "mfio57", "mfio58",
241 static const char * const pistachio_spis_groups[] = {
242 "mfio11", "mfio12", "mfio13", "mfio14",
245 static const char *const pistachio_sdhost_groups[] = {
246 "mfio15", "mfio16", "mfio17", "mfio18", "mfio19", "mfio20",
247 "mfio21", "mfio22", "mfio23", "mfio24", "mfio25", "mfio26",
251 static const char * const pistachio_i2c0_groups[] = {
255 static const char * const pistachio_i2c1_groups[] = {
259 static const char * const pistachio_i2c2_groups[] = {
263 static const char * const pistachio_i2c3_groups[] = {
267 static const char * const pistachio_audio_clk_in_groups[] = {
271 static const char * const pistachio_i2s_out_groups[] = {
272 "mfio36", "mfio37", "mfio38", "mfio39", "mfio40", "mfio41",
273 "mfio42", "mfio43", "mfio44",
276 static const char * const pistachio_debug_raw_cca_ind_groups[] = {
280 static const char * const pistachio_debug_ed_sec20_cca_ind_groups[] = {
284 static const char * const pistachio_debug_ed_sec40_cca_ind_groups[] = {
288 static const char * const pistachio_debug_agc_done_0_groups[] = {
292 static const char * const pistachio_debug_agc_done_1_groups[] = {
296 static const char * const pistachio_debug_ed_cca_ind_groups[] = {
300 static const char * const pistachio_debug_s2l_done_groups[] = {
304 static const char * const pistachio_i2s_dac_clk_groups[] = {
308 static const char * const pistachio_audio_sync_groups[] = {
312 static const char * const pistachio_audio_trigger_groups[] = {
316 static const char * const pistachio_i2s_in_groups[] = {
317 "mfio47", "mfio48", "mfio49", "mfio50", "mfio51", "mfio52",
321 static const char * const pistachio_uart0_groups[] = {
322 "mfio55", "mfio56", "mfio57", "mfio58",
325 static const char * const pistachio_uart1_groups[] = {
326 "mfio59", "mfio60", "mfio1", "mfio2",
329 static const char * const pistachio_spdif_out_groups[] = {
333 static const char * const pistachio_spdif_in_groups[] = {
336 static const int pistachio_spdif_in_scenarios[] = {
337 PISTACHIO_PIN_MFIO(62),
338 PISTACHIO_PIN_MFIO(54),
341 static const char * const pistachio_eth_groups[] = {
342 "mfio63", "mfio64", "mfio65", "mfio66", "mfio67", "mfio68",
343 "mfio69", "mfio70", "mfio71",
346 static const char * const pistachio_ir_groups[] = {
350 static const char * const pistachio_pwmpdm_groups[] = {
351 "mfio73", "mfio74", "mfio75", "mfio76",
354 static const char * const pistachio_mips_trace_clk_groups[] = {
355 "mfio15", "mfio63", "mfio73",
358 static const char * const pistachio_mips_trace_dint_groups[] = {
359 "mfio16", "mfio64", "mfio74",
361 static const int pistachio_mips_trace_dint_scenarios[] = {
362 PISTACHIO_PIN_MFIO(16),
363 PISTACHIO_PIN_MFIO(64),
364 PISTACHIO_PIN_MFIO(74),
367 static const char * const pistachio_mips_trace_trigout_groups[] = {
368 "mfio17", "mfio65", "mfio75",
371 static const char * const pistachio_mips_trace_trigin_groups[] = {
372 "mfio18", "mfio66", "mfio76",
374 static const int pistachio_mips_trace_trigin_scenarios[] = {
375 PISTACHIO_PIN_MFIO(18),
376 PISTACHIO_PIN_MFIO(66),
377 PISTACHIO_PIN_MFIO(76),
380 static const char * const pistachio_mips_trace_dm_groups[] = {
381 "mfio19", "mfio67", "mfio77",
384 static const char * const pistachio_mips_probe_n_groups[] = {
385 "mfio20", "mfio68", "mfio78",
387 static const int pistachio_mips_probe_n_scenarios[] = {
388 PISTACHIO_PIN_MFIO(20),
389 PISTACHIO_PIN_MFIO(68),
390 PISTACHIO_PIN_MFIO(78),
393 static const char * const pistachio_mips_trace_data_groups[] = {
394 "mfio15", "mfio16", "mfio17", "mfio18", "mfio19", "mfio20",
395 "mfio21", "mfio22", "mfio63", "mfio64", "mfio65", "mfio66",
396 "mfio67", "mfio68", "mfio69", "mfio70", "mfio79", "mfio80",
397 "mfio81", "mfio82", "mfio83", "mfio84", "mfio85", "mfio86",
400 static const char * const pistachio_sram_debug_groups[] = {
404 static const char * const pistachio_rom_debug_groups[] = {
408 static const char * const pistachio_rpu_debug_groups[] = {
412 static const char * const pistachio_mips_debug_groups[] = {
416 static const char * const pistachio_eth_debug_groups[] = {
420 static const char * const pistachio_usb_debug_groups[] = {
424 static const char * const pistachio_sdhost_debug_groups[] = {
428 static const char * const pistachio_socif_debug_groups[] = {
432 static const char * const pistachio_mdc_debug_groups[] = {
436 static const char * const pistachio_ddr_debug_groups[] = {
440 static const char * const pistachio_dreq0_groups[] = {
444 static const char * const pistachio_dreq1_groups[] = {
448 static const char * const pistachio_dreq2_groups[] = {
452 static const char * const pistachio_dreq3_groups[] = {
456 static const char * const pistachio_dreq4_groups[] = {
460 static const char * const pistachio_dreq5_groups[] = {
464 static const char * const pistachio_mips_pll_lock_groups[] = {
468 static const char * const pistachio_audio_pll_lock_groups[] = {
472 static const char * const pistachio_rpu_v_pll_lock_groups[] = {
476 static const char * const pistachio_rpu_l_pll_lock_groups[] = {
480 static const char * const pistachio_sys_pll_lock_groups[] = {
484 static const char * const pistachio_wifi_pll_lock_groups[] = {
488 static const char * const pistachio_bt_pll_lock_groups[] = {
492 #define FUNCTION(_name) \
495 .groups = pistachio_##_name##_groups, \
496 .ngroups = ARRAY_SIZE(pistachio_##_name##_groups), \
499 #define FUNCTION_SCENARIO(_name, _reg, _shift, _mask) \
502 .groups = pistachio_##_name##_groups, \
503 .ngroups = ARRAY_SIZE(pistachio_##_name##_groups), \
504 .scenarios = pistachio_##_name##_scenarios, \
505 .nscenarios = ARRAY_SIZE(pistachio_##_name##_scenarios),\
506 .scenario_reg = _reg, \
507 .scenario_shift = _shift, \
508 .scenario_mask = _mask, \
511 enum pistachio_mux_option {
512 PISTACHIO_FUNCTION_NONE = -1,
513 PISTACHIO_FUNCTION_SPIM0,
514 PISTACHIO_FUNCTION_SPIM1,
515 PISTACHIO_FUNCTION_SPIS,
516 PISTACHIO_FUNCTION_SDHOST,
517 PISTACHIO_FUNCTION_I2C0,
518 PISTACHIO_FUNCTION_I2C1,
519 PISTACHIO_FUNCTION_I2C2,
520 PISTACHIO_FUNCTION_I2C3,
521 PISTACHIO_FUNCTION_AUDIO_CLK_IN,
522 PISTACHIO_FUNCTION_I2S_OUT,
523 PISTACHIO_FUNCTION_I2S_DAC_CLK,
524 PISTACHIO_FUNCTION_AUDIO_SYNC,
525 PISTACHIO_FUNCTION_AUDIO_TRIGGER,
526 PISTACHIO_FUNCTION_I2S_IN,
527 PISTACHIO_FUNCTION_UART0,
528 PISTACHIO_FUNCTION_UART1,
529 PISTACHIO_FUNCTION_SPDIF_OUT,
530 PISTACHIO_FUNCTION_SPDIF_IN,
531 PISTACHIO_FUNCTION_ETH,
532 PISTACHIO_FUNCTION_IR,
533 PISTACHIO_FUNCTION_PWMPDM,
534 PISTACHIO_FUNCTION_MIPS_TRACE_CLK,
535 PISTACHIO_FUNCTION_MIPS_TRACE_DINT,
536 PISTACHIO_FUNCTION_MIPS_TRACE_TRIGOUT,
537 PISTACHIO_FUNCTION_MIPS_TRACE_TRIGIN,
538 PISTACHIO_FUNCTION_MIPS_TRACE_DM,
539 PISTACHIO_FUNCTION_MIPS_TRACE_PROBE_N,
540 PISTACHIO_FUNCTION_MIPS_TRACE_DATA,
541 PISTACHIO_FUNCTION_SRAM_DEBUG,
542 PISTACHIO_FUNCTION_ROM_DEBUG,
543 PISTACHIO_FUNCTION_RPU_DEBUG,
544 PISTACHIO_FUNCTION_MIPS_DEBUG,
545 PISTACHIO_FUNCTION_ETH_DEBUG,
546 PISTACHIO_FUNCTION_USB_DEBUG,
547 PISTACHIO_FUNCTION_SDHOST_DEBUG,
548 PISTACHIO_FUNCTION_SOCIF_DEBUG,
549 PISTACHIO_FUNCTION_MDC_DEBUG,
550 PISTACHIO_FUNCTION_DDR_DEBUG,
551 PISTACHIO_FUNCTION_DREQ0,
552 PISTACHIO_FUNCTION_DREQ1,
553 PISTACHIO_FUNCTION_DREQ2,
554 PISTACHIO_FUNCTION_DREQ3,
555 PISTACHIO_FUNCTION_DREQ4,
556 PISTACHIO_FUNCTION_DREQ5,
557 PISTACHIO_FUNCTION_MIPS_PLL_LOCK,
558 PISTACHIO_FUNCTION_AUDIO_PLL_LOCK,
559 PISTACHIO_FUNCTION_RPU_V_PLL_LOCK,
560 PISTACHIO_FUNCTION_RPU_L_PLL_LOCK,
561 PISTACHIO_FUNCTION_SYS_PLL_LOCK,
562 PISTACHIO_FUNCTION_WIFI_PLL_LOCK,
563 PISTACHIO_FUNCTION_BT_PLL_LOCK,
564 PISTACHIO_FUNCTION_DEBUG_RAW_CCA_IND,
565 PISTACHIO_FUNCTION_DEBUG_ED_SEC20_CCA_IND,
566 PISTACHIO_FUNCTION_DEBUG_ED_SEC40_CCA_IND,
567 PISTACHIO_FUNCTION_DEBUG_AGC_DONE_0,
568 PISTACHIO_FUNCTION_DEBUG_AGC_DONE_1,
569 PISTACHIO_FUNCTION_DEBUG_ED_CCA_IND,
570 PISTACHIO_FUNCTION_DEBUG_S2L_DONE,
573 static const struct pistachio_function pistachio_functions[] = {
582 FUNCTION(audio_clk_in),
584 FUNCTION(i2s_dac_clk),
585 FUNCTION(audio_sync),
586 FUNCTION(audio_trigger),
591 FUNCTION_SCENARIO(spdif_in, PADS_SCENARIO_SELECT, 0, 0x1),
595 FUNCTION(mips_trace_clk),
596 FUNCTION_SCENARIO(mips_trace_dint, PADS_SCENARIO_SELECT, 1, 0x3),
597 FUNCTION(mips_trace_trigout),
598 FUNCTION_SCENARIO(mips_trace_trigin, PADS_SCENARIO_SELECT, 3, 0x3),
599 FUNCTION(mips_trace_dm),
600 FUNCTION_SCENARIO(mips_probe_n, PADS_SCENARIO_SELECT, 5, 0x3),
601 FUNCTION(mips_trace_data),
602 FUNCTION(sram_debug),
605 FUNCTION(mips_debug),
608 FUNCTION(sdhost_debug),
609 FUNCTION(socif_debug),
618 FUNCTION(mips_pll_lock),
619 FUNCTION(audio_pll_lock),
620 FUNCTION(rpu_v_pll_lock),
621 FUNCTION(rpu_l_pll_lock),
622 FUNCTION(sys_pll_lock),
623 FUNCTION(wifi_pll_lock),
624 FUNCTION(bt_pll_lock),
625 FUNCTION(debug_raw_cca_ind),
626 FUNCTION(debug_ed_sec20_cca_ind),
627 FUNCTION(debug_ed_sec40_cca_ind),
628 FUNCTION(debug_agc_done_0),
629 FUNCTION(debug_agc_done_1),
630 FUNCTION(debug_ed_cca_ind),
631 FUNCTION(debug_s2l_done),
634 #define PIN_GROUP(_pin, _name) \
637 .pin = PISTACHIO_PIN_##_pin, \
639 PISTACHIO_FUNCTION_NONE, \
640 PISTACHIO_FUNCTION_NONE, \
641 PISTACHIO_FUNCTION_NONE, \
648 #define MFIO_PIN_GROUP(_pin, _func) \
650 .name = "mfio" #_pin, \
651 .pin = PISTACHIO_PIN_MFIO(_pin), \
653 PISTACHIO_FUNCTION_##_func, \
654 PISTACHIO_FUNCTION_NONE, \
655 PISTACHIO_FUNCTION_NONE, \
662 #define MFIO_MUX_PIN_GROUP(_pin, _f0, _f1, _f2, _reg, _shift, _mask) \
664 .name = "mfio" #_pin, \
665 .pin = PISTACHIO_PIN_MFIO(_pin), \
667 PISTACHIO_FUNCTION_##_f0, \
668 PISTACHIO_FUNCTION_##_f1, \
669 PISTACHIO_FUNCTION_##_f2, \
672 .mux_shift = _shift, \
676 static const struct pistachio_pin_group pistachio_groups[] = {
677 MFIO_PIN_GROUP(0, SPIM1),
678 MFIO_MUX_PIN_GROUP(1, SPIM1, SPIM0, UART1,
679 PADS_FUNCTION_SELECT0, 0, 0x3),
680 MFIO_MUX_PIN_GROUP(2, SPIM1, SPIM0, UART1,
681 PADS_FUNCTION_SELECT0, 2, 0x3),
682 MFIO_PIN_GROUP(3, SPIM1),
683 MFIO_PIN_GROUP(4, SPIM1),
684 MFIO_PIN_GROUP(5, SPIM1),
685 MFIO_PIN_GROUP(6, SPIM1),
686 MFIO_PIN_GROUP(7, SPIM1),
687 MFIO_PIN_GROUP(8, SPIM0),
688 MFIO_PIN_GROUP(9, SPIM0),
689 MFIO_PIN_GROUP(10, SPIM0),
690 MFIO_PIN_GROUP(11, SPIS),
691 MFIO_PIN_GROUP(12, SPIS),
692 MFIO_PIN_GROUP(13, SPIS),
693 MFIO_PIN_GROUP(14, SPIS),
694 MFIO_MUX_PIN_GROUP(15, SDHOST, MIPS_TRACE_CLK, MIPS_TRACE_DATA,
695 PADS_FUNCTION_SELECT0, 4, 0x3),
696 MFIO_MUX_PIN_GROUP(16, SDHOST, MIPS_TRACE_DINT, MIPS_TRACE_DATA,
697 PADS_FUNCTION_SELECT0, 6, 0x3),
698 MFIO_MUX_PIN_GROUP(17, SDHOST, MIPS_TRACE_TRIGOUT, MIPS_TRACE_DATA,
699 PADS_FUNCTION_SELECT0, 8, 0x3),
700 MFIO_MUX_PIN_GROUP(18, SDHOST, MIPS_TRACE_TRIGIN, MIPS_TRACE_DATA,
701 PADS_FUNCTION_SELECT0, 10, 0x3),
702 MFIO_MUX_PIN_GROUP(19, SDHOST, MIPS_TRACE_DM, MIPS_TRACE_DATA,
703 PADS_FUNCTION_SELECT0, 12, 0x3),
704 MFIO_MUX_PIN_GROUP(20, SDHOST, MIPS_TRACE_PROBE_N, MIPS_TRACE_DATA,
705 PADS_FUNCTION_SELECT0, 14, 0x3),
706 MFIO_MUX_PIN_GROUP(21, SDHOST, NONE, MIPS_TRACE_DATA,
707 PADS_FUNCTION_SELECT0, 16, 0x3),
708 MFIO_MUX_PIN_GROUP(22, SDHOST, NONE, MIPS_TRACE_DATA,
709 PADS_FUNCTION_SELECT0, 18, 0x3),
710 MFIO_PIN_GROUP(23, SDHOST),
711 MFIO_PIN_GROUP(24, SDHOST),
712 MFIO_PIN_GROUP(25, SDHOST),
713 MFIO_PIN_GROUP(26, SDHOST),
714 MFIO_PIN_GROUP(27, SDHOST),
715 MFIO_MUX_PIN_GROUP(28, I2C0, SPIM0, NONE,
716 PADS_FUNCTION_SELECT0, 20, 0x1),
717 MFIO_MUX_PIN_GROUP(29, I2C0, SPIM0, NONE,
718 PADS_FUNCTION_SELECT0, 21, 0x1),
719 MFIO_MUX_PIN_GROUP(30, I2C1, SPIM0, NONE,
720 PADS_FUNCTION_SELECT0, 22, 0x1),
721 MFIO_MUX_PIN_GROUP(31, I2C1, SPIM1, NONE,
722 PADS_FUNCTION_SELECT0, 23, 0x1),
723 MFIO_PIN_GROUP(32, I2C2),
724 MFIO_PIN_GROUP(33, I2C2),
725 MFIO_PIN_GROUP(34, I2C3),
726 MFIO_PIN_GROUP(35, I2C3),
727 MFIO_MUX_PIN_GROUP(36, I2S_OUT, AUDIO_CLK_IN, NONE,
728 PADS_FUNCTION_SELECT0, 24, 0x1),
729 MFIO_MUX_PIN_GROUP(37, I2S_OUT, DEBUG_RAW_CCA_IND, NONE,
730 PADS_FUNCTION_SELECT0, 25, 0x1),
731 MFIO_MUX_PIN_GROUP(38, I2S_OUT, DEBUG_ED_SEC20_CCA_IND, NONE,
732 PADS_FUNCTION_SELECT0, 26, 0x1),
733 MFIO_MUX_PIN_GROUP(39, I2S_OUT, DEBUG_ED_SEC40_CCA_IND, NONE,
734 PADS_FUNCTION_SELECT0, 27, 0x1),
735 MFIO_MUX_PIN_GROUP(40, I2S_OUT, DEBUG_AGC_DONE_0, NONE,
736 PADS_FUNCTION_SELECT0, 28, 0x1),
737 MFIO_MUX_PIN_GROUP(41, I2S_OUT, DEBUG_AGC_DONE_1, NONE,
738 PADS_FUNCTION_SELECT0, 29, 0x1),
739 MFIO_MUX_PIN_GROUP(42, I2S_OUT, DEBUG_ED_CCA_IND, NONE,
740 PADS_FUNCTION_SELECT0, 30, 0x1),
741 MFIO_MUX_PIN_GROUP(43, I2S_OUT, DEBUG_S2L_DONE, NONE,
742 PADS_FUNCTION_SELECT0, 31, 0x1),
743 MFIO_PIN_GROUP(44, I2S_OUT),
744 MFIO_MUX_PIN_GROUP(45, I2S_DAC_CLK, AUDIO_SYNC, NONE,
745 PADS_FUNCTION_SELECT1, 0, 0x1),
746 MFIO_PIN_GROUP(46, AUDIO_TRIGGER),
747 MFIO_PIN_GROUP(47, I2S_IN),
748 MFIO_PIN_GROUP(48, I2S_IN),
749 MFIO_PIN_GROUP(49, I2S_IN),
750 MFIO_PIN_GROUP(50, I2S_IN),
751 MFIO_PIN_GROUP(51, I2S_IN),
752 MFIO_PIN_GROUP(52, I2S_IN),
753 MFIO_PIN_GROUP(53, I2S_IN),
754 MFIO_MUX_PIN_GROUP(54, I2S_IN, NONE, SPDIF_IN,
755 PADS_FUNCTION_SELECT1, 1, 0x3),
756 MFIO_MUX_PIN_GROUP(55, UART0, SPIM0, SPIM1,
757 PADS_FUNCTION_SELECT1, 3, 0x3),
758 MFIO_MUX_PIN_GROUP(56, UART0, SPIM0, SPIM1,
759 PADS_FUNCTION_SELECT1, 5, 0x3),
760 MFIO_MUX_PIN_GROUP(57, UART0, SPIM0, SPIM1,
761 PADS_FUNCTION_SELECT1, 7, 0x3),
762 MFIO_MUX_PIN_GROUP(58, UART0, SPIM1, NONE,
763 PADS_FUNCTION_SELECT1, 9, 0x1),
764 MFIO_PIN_GROUP(59, UART1),
765 MFIO_PIN_GROUP(60, UART1),
766 MFIO_PIN_GROUP(61, SPDIF_OUT),
767 MFIO_PIN_GROUP(62, SPDIF_IN),
768 MFIO_MUX_PIN_GROUP(63, ETH, MIPS_TRACE_CLK, MIPS_TRACE_DATA,
769 PADS_FUNCTION_SELECT1, 10, 0x3),
770 MFIO_MUX_PIN_GROUP(64, ETH, MIPS_TRACE_DINT, MIPS_TRACE_DATA,
771 PADS_FUNCTION_SELECT1, 12, 0x3),
772 MFIO_MUX_PIN_GROUP(65, ETH, MIPS_TRACE_TRIGOUT, MIPS_TRACE_DATA,
773 PADS_FUNCTION_SELECT1, 14, 0x3),
774 MFIO_MUX_PIN_GROUP(66, ETH, MIPS_TRACE_TRIGIN, MIPS_TRACE_DATA,
775 PADS_FUNCTION_SELECT1, 16, 0x3),
776 MFIO_MUX_PIN_GROUP(67, ETH, MIPS_TRACE_DM, MIPS_TRACE_DATA,
777 PADS_FUNCTION_SELECT1, 18, 0x3),
778 MFIO_MUX_PIN_GROUP(68, ETH, MIPS_TRACE_PROBE_N, MIPS_TRACE_DATA,
779 PADS_FUNCTION_SELECT1, 20, 0x3),
780 MFIO_MUX_PIN_GROUP(69, ETH, NONE, MIPS_TRACE_DATA,
781 PADS_FUNCTION_SELECT1, 22, 0x3),
782 MFIO_MUX_PIN_GROUP(70, ETH, NONE, MIPS_TRACE_DATA,
783 PADS_FUNCTION_SELECT1, 24, 0x3),
784 MFIO_PIN_GROUP(71, ETH),
785 MFIO_PIN_GROUP(72, IR),
786 MFIO_MUX_PIN_GROUP(73, PWMPDM, MIPS_TRACE_CLK, SRAM_DEBUG,
787 PADS_FUNCTION_SELECT1, 26, 0x3),
788 MFIO_MUX_PIN_GROUP(74, PWMPDM, MIPS_TRACE_DINT, SRAM_DEBUG,
789 PADS_FUNCTION_SELECT1, 28, 0x3),
790 MFIO_MUX_PIN_GROUP(75, PWMPDM, MIPS_TRACE_TRIGOUT, ROM_DEBUG,
791 PADS_FUNCTION_SELECT1, 30, 0x3),
792 MFIO_MUX_PIN_GROUP(76, PWMPDM, MIPS_TRACE_TRIGIN, ROM_DEBUG,
793 PADS_FUNCTION_SELECT2, 0, 0x3),
794 MFIO_MUX_PIN_GROUP(77, MDC_DEBUG, MIPS_TRACE_DM, RPU_DEBUG,
795 PADS_FUNCTION_SELECT2, 2, 0x3),
796 MFIO_MUX_PIN_GROUP(78, MDC_DEBUG, MIPS_TRACE_PROBE_N, RPU_DEBUG,
797 PADS_FUNCTION_SELECT2, 4, 0x3),
798 MFIO_MUX_PIN_GROUP(79, DDR_DEBUG, MIPS_TRACE_DATA, MIPS_DEBUG,
799 PADS_FUNCTION_SELECT2, 6, 0x3),
800 MFIO_MUX_PIN_GROUP(80, DDR_DEBUG, MIPS_TRACE_DATA, MIPS_DEBUG,
801 PADS_FUNCTION_SELECT2, 8, 0x3),
802 MFIO_MUX_PIN_GROUP(81, DREQ0, MIPS_TRACE_DATA, ETH_DEBUG,
803 PADS_FUNCTION_SELECT2, 10, 0x3),
804 MFIO_MUX_PIN_GROUP(82, DREQ1, MIPS_TRACE_DATA, ETH_DEBUG,
805 PADS_FUNCTION_SELECT2, 12, 0x3),
806 MFIO_MUX_PIN_GROUP(83, MIPS_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
807 PADS_FUNCTION_SELECT2, 14, 0x3),
808 MFIO_MUX_PIN_GROUP(84, AUDIO_PLL_LOCK, MIPS_TRACE_DATA, USB_DEBUG,
809 PADS_FUNCTION_SELECT2, 16, 0x3),
810 MFIO_MUX_PIN_GROUP(85, RPU_V_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
811 PADS_FUNCTION_SELECT2, 18, 0x3),
812 MFIO_MUX_PIN_GROUP(86, RPU_L_PLL_LOCK, MIPS_TRACE_DATA, SDHOST_DEBUG,
813 PADS_FUNCTION_SELECT2, 20, 0x3),
814 MFIO_MUX_PIN_GROUP(87, SYS_PLL_LOCK, DREQ2, SOCIF_DEBUG,
815 PADS_FUNCTION_SELECT2, 22, 0x3),
816 MFIO_MUX_PIN_GROUP(88, WIFI_PLL_LOCK, DREQ3, SOCIF_DEBUG,
817 PADS_FUNCTION_SELECT2, 24, 0x3),
818 MFIO_MUX_PIN_GROUP(89, BT_PLL_LOCK, DREQ4, DREQ5,
819 PADS_FUNCTION_SELECT2, 26, 0x3),
820 PIN_GROUP(TCK, "tck"),
821 PIN_GROUP(TRSTN, "trstn"),
822 PIN_GROUP(TDI, "tdi"),
823 PIN_GROUP(TMS, "tms"),
824 PIN_GROUP(TDO, "tdo"),
825 PIN_GROUP(JTAG_COMPLY, "jtag_comply"),
826 PIN_GROUP(SAFE_MODE, "safe_mode"),
827 PIN_GROUP(POR_DISABLE, "por_disable"),
828 PIN_GROUP(RESETN, "resetn"),
831 static inline u32 pctl_readl(struct pistachio_pinctrl *pctl, u32 reg)
833 return readl(pctl->base + reg);
836 static inline void pctl_writel(struct pistachio_pinctrl *pctl, u32 val, u32 reg)
838 writel(val, pctl->base + reg);
841 static inline struct pistachio_gpio_bank *irqd_to_bank(struct irq_data *d)
843 return gpiochip_get_data(irq_data_get_irq_chip_data(d));
846 static inline u32 gpio_readl(struct pistachio_gpio_bank *bank, u32 reg)
848 return readl(bank->base + reg);
851 static inline void gpio_writel(struct pistachio_gpio_bank *bank, u32 val,
854 writel(val, bank->base + reg);
857 static inline void gpio_mask_writel(struct pistachio_gpio_bank *bank,
858 u32 reg, unsigned int bit, u32 val)
861 * For most of the GPIO registers, bit 16 + X must be set in order to
864 gpio_writel(bank, (0x10000 | val) << bit, reg);
867 static inline void gpio_enable(struct pistachio_gpio_bank *bank,
870 gpio_mask_writel(bank, GPIO_BIT_EN, offset, 1);
873 static inline void gpio_disable(struct pistachio_gpio_bank *bank,
876 gpio_mask_writel(bank, GPIO_BIT_EN, offset, 0);
879 static int pistachio_pinctrl_get_groups_count(struct pinctrl_dev *pctldev)
881 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
883 return pctl->ngroups;
886 static const char *pistachio_pinctrl_get_group_name(struct pinctrl_dev *pctldev,
889 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
891 return pctl->groups[group].name;
894 static int pistachio_pinctrl_get_group_pins(struct pinctrl_dev *pctldev,
896 const unsigned **pins,
899 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
901 *pins = &pctl->groups[group].pin;
907 static const struct pinctrl_ops pistachio_pinctrl_ops = {
908 .get_groups_count = pistachio_pinctrl_get_groups_count,
909 .get_group_name = pistachio_pinctrl_get_group_name,
910 .get_group_pins = pistachio_pinctrl_get_group_pins,
911 .dt_node_to_map = pinconf_generic_dt_node_to_map_pin,
912 .dt_free_map = pinctrl_utils_free_map,
915 static int pistachio_pinmux_get_functions_count(struct pinctrl_dev *pctldev)
917 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
919 return pctl->nfunctions;
923 pistachio_pinmux_get_function_name(struct pinctrl_dev *pctldev, unsigned func)
925 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
927 return pctl->functions[func].name;
930 static int pistachio_pinmux_get_function_groups(struct pinctrl_dev *pctldev,
932 const char * const **groups,
933 unsigned * const num_groups)
935 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
937 *groups = pctl->functions[func].groups;
938 *num_groups = pctl->functions[func].ngroups;
943 static int pistachio_pinmux_enable(struct pinctrl_dev *pctldev,
944 unsigned func, unsigned group)
946 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
947 const struct pistachio_pin_group *pg = &pctl->groups[group];
948 const struct pistachio_function *pf = &pctl->functions[func];
949 struct pinctrl_gpio_range *range;
953 if (pg->mux_reg > 0) {
954 for (i = 0; i < ARRAY_SIZE(pg->mux_option); i++) {
955 if (pg->mux_option[i] == func)
958 if (i == ARRAY_SIZE(pg->mux_option)) {
959 dev_err(pctl->dev, "Cannot mux pin %u to function %u\n",
964 val = pctl_readl(pctl, pg->mux_reg);
965 val &= ~(pg->mux_mask << pg->mux_shift);
966 val |= i << pg->mux_shift;
967 pctl_writel(pctl, val, pg->mux_reg);
970 for (i = 0; i < pf->nscenarios; i++) {
971 if (pf->scenarios[i] == group)
974 if (WARN_ON(i == pf->nscenarios))
977 val = pctl_readl(pctl, pf->scenario_reg);
978 val &= ~(pf->scenario_mask << pf->scenario_shift);
979 val |= i << pf->scenario_shift;
980 pctl_writel(pctl, val, pf->scenario_reg);
984 range = pinctrl_find_gpio_range_from_pin(pctl->pctldev, pg->pin);
986 gpio_disable(gpiochip_get_data(range->gc), pg->pin - range->pin_base);
991 static const struct pinmux_ops pistachio_pinmux_ops = {
992 .get_functions_count = pistachio_pinmux_get_functions_count,
993 .get_function_name = pistachio_pinmux_get_function_name,
994 .get_function_groups = pistachio_pinmux_get_function_groups,
995 .set_mux = pistachio_pinmux_enable,
998 static int pistachio_pinconf_get(struct pinctrl_dev *pctldev, unsigned pin,
999 unsigned long *config)
1001 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
1002 enum pin_config_param param = pinconf_to_config_param(*config);
1006 case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
1007 val = pctl_readl(pctl, PADS_SCHMITT_EN_REG(pin));
1008 arg = !!(val & PADS_SCHMITT_EN_BIT(pin));
1010 case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
1011 val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >>
1012 PADS_PU_PD_SHIFT(pin);
1013 arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_HIGHZ;
1015 case PIN_CONFIG_BIAS_PULL_UP:
1016 val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >>
1017 PADS_PU_PD_SHIFT(pin);
1018 arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_UP;
1020 case PIN_CONFIG_BIAS_PULL_DOWN:
1021 val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >>
1022 PADS_PU_PD_SHIFT(pin);
1023 arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_DOWN;
1025 case PIN_CONFIG_BIAS_BUS_HOLD:
1026 val = pctl_readl(pctl, PADS_PU_PD_REG(pin)) >>
1027 PADS_PU_PD_SHIFT(pin);
1028 arg = (val & PADS_PU_PD_MASK) == PADS_PU_PD_BUS;
1030 case PIN_CONFIG_SLEW_RATE:
1031 val = pctl_readl(pctl, PADS_SLEW_RATE_REG(pin));
1032 arg = !!(val & PADS_SLEW_RATE_BIT(pin));
1034 case PIN_CONFIG_DRIVE_STRENGTH:
1035 val = pctl_readl(pctl, PADS_DRIVE_STRENGTH_REG(pin)) >>
1036 PADS_DRIVE_STRENGTH_SHIFT(pin);
1037 switch (val & PADS_DRIVE_STRENGTH_MASK) {
1038 case PADS_DRIVE_STRENGTH_2MA:
1041 case PADS_DRIVE_STRENGTH_4MA:
1044 case PADS_DRIVE_STRENGTH_8MA:
1047 case PADS_DRIVE_STRENGTH_12MA:
1054 dev_dbg(pctl->dev, "Property %u not supported\n", param);
1058 *config = pinconf_to_config_packed(param, arg);
1063 static int pistachio_pinconf_set(struct pinctrl_dev *pctldev, unsigned pin,
1064 unsigned long *configs, unsigned num_configs)
1066 struct pistachio_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev);
1067 enum pin_config_param param;
1071 for (i = 0; i < num_configs; i++) {
1072 param = pinconf_to_config_param(configs[i]);
1073 arg = pinconf_to_config_argument(configs[i]);
1076 case PIN_CONFIG_INPUT_SCHMITT_ENABLE:
1077 val = pctl_readl(pctl, PADS_SCHMITT_EN_REG(pin));
1079 val |= PADS_SCHMITT_EN_BIT(pin);
1081 val &= ~PADS_SCHMITT_EN_BIT(pin);
1082 pctl_writel(pctl, val, PADS_SCHMITT_EN_REG(pin));
1084 case PIN_CONFIG_BIAS_HIGH_IMPEDANCE:
1085 val = pctl_readl(pctl, PADS_PU_PD_REG(pin));
1086 val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin));
1087 val |= PADS_PU_PD_HIGHZ << PADS_PU_PD_SHIFT(pin);
1088 pctl_writel(pctl, val, PADS_PU_PD_REG(pin));
1090 case PIN_CONFIG_BIAS_PULL_UP:
1091 val = pctl_readl(pctl, PADS_PU_PD_REG(pin));
1092 val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin));
1093 val |= PADS_PU_PD_UP << PADS_PU_PD_SHIFT(pin);
1094 pctl_writel(pctl, val, PADS_PU_PD_REG(pin));
1096 case PIN_CONFIG_BIAS_PULL_DOWN:
1097 val = pctl_readl(pctl, PADS_PU_PD_REG(pin));
1098 val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin));
1099 val |= PADS_PU_PD_DOWN << PADS_PU_PD_SHIFT(pin);
1100 pctl_writel(pctl, val, PADS_PU_PD_REG(pin));
1102 case PIN_CONFIG_BIAS_BUS_HOLD:
1103 val = pctl_readl(pctl, PADS_PU_PD_REG(pin));
1104 val &= ~(PADS_PU_PD_MASK << PADS_PU_PD_SHIFT(pin));
1105 val |= PADS_PU_PD_BUS << PADS_PU_PD_SHIFT(pin);
1106 pctl_writel(pctl, val, PADS_PU_PD_REG(pin));
1108 case PIN_CONFIG_SLEW_RATE:
1109 val = pctl_readl(pctl, PADS_SLEW_RATE_REG(pin));
1111 val |= PADS_SLEW_RATE_BIT(pin);
1113 val &= ~PADS_SLEW_RATE_BIT(pin);
1114 pctl_writel(pctl, val, PADS_SLEW_RATE_REG(pin));
1116 case PIN_CONFIG_DRIVE_STRENGTH:
1117 val = pctl_readl(pctl, PADS_DRIVE_STRENGTH_REG(pin));
1118 val &= ~(PADS_DRIVE_STRENGTH_MASK <<
1119 PADS_DRIVE_STRENGTH_SHIFT(pin));
1122 drv = PADS_DRIVE_STRENGTH_2MA;
1125 drv = PADS_DRIVE_STRENGTH_4MA;
1128 drv = PADS_DRIVE_STRENGTH_8MA;
1131 drv = PADS_DRIVE_STRENGTH_12MA;
1135 "Drive strength %umA not supported\n",
1139 val |= drv << PADS_DRIVE_STRENGTH_SHIFT(pin);
1140 pctl_writel(pctl, val, PADS_DRIVE_STRENGTH_REG(pin));
1143 dev_err(pctl->dev, "Property %u not supported\n",
1152 static const struct pinconf_ops pistachio_pinconf_ops = {
1153 .pin_config_get = pistachio_pinconf_get,
1154 .pin_config_set = pistachio_pinconf_set,
1158 static struct pinctrl_desc pistachio_pinctrl_desc = {
1159 .name = "pistachio-pinctrl",
1160 .pctlops = &pistachio_pinctrl_ops,
1161 .pmxops = &pistachio_pinmux_ops,
1162 .confops = &pistachio_pinconf_ops,
1165 static int pistachio_gpio_get_direction(struct gpio_chip *chip, unsigned offset)
1167 struct pistachio_gpio_bank *bank = gpiochip_get_data(chip);
1169 if (gpio_readl(bank, GPIO_OUTPUT_EN) & BIT(offset))
1170 return GPIO_LINE_DIRECTION_OUT;
1172 return GPIO_LINE_DIRECTION_IN;
1175 static int pistachio_gpio_get(struct gpio_chip *chip, unsigned offset)
1177 struct pistachio_gpio_bank *bank = gpiochip_get_data(chip);
1180 if (gpio_readl(bank, GPIO_OUTPUT_EN) & BIT(offset))
1185 return !!(gpio_readl(bank, reg) & BIT(offset));
1188 static void pistachio_gpio_set(struct gpio_chip *chip, unsigned offset,
1191 struct pistachio_gpio_bank *bank = gpiochip_get_data(chip);
1193 gpio_mask_writel(bank, GPIO_OUTPUT, offset, !!value);
1196 static int pistachio_gpio_direction_input(struct gpio_chip *chip,
1199 struct pistachio_gpio_bank *bank = gpiochip_get_data(chip);
1201 gpio_mask_writel(bank, GPIO_OUTPUT_EN, offset, 0);
1202 gpio_enable(bank, offset);
1207 static int pistachio_gpio_direction_output(struct gpio_chip *chip,
1208 unsigned offset, int value)
1210 struct pistachio_gpio_bank *bank = gpiochip_get_data(chip);
1212 pistachio_gpio_set(chip, offset, value);
1213 gpio_mask_writel(bank, GPIO_OUTPUT_EN, offset, 1);
1214 gpio_enable(bank, offset);
1219 static void pistachio_gpio_irq_ack(struct irq_data *data)
1221 struct pistachio_gpio_bank *bank = irqd_to_bank(data);
1223 gpio_mask_writel(bank, GPIO_INTERRUPT_STATUS, data->hwirq, 0);
1226 static void pistachio_gpio_irq_mask(struct irq_data *data)
1228 struct pistachio_gpio_bank *bank = irqd_to_bank(data);
1230 gpio_mask_writel(bank, GPIO_INTERRUPT_EN, data->hwirq, 0);
1233 static void pistachio_gpio_irq_unmask(struct irq_data *data)
1235 struct pistachio_gpio_bank *bank = irqd_to_bank(data);
1237 gpio_mask_writel(bank, GPIO_INTERRUPT_EN, data->hwirq, 1);
1240 static unsigned int pistachio_gpio_irq_startup(struct irq_data *data)
1242 struct gpio_chip *chip = irq_data_get_irq_chip_data(data);
1244 pistachio_gpio_direction_input(chip, data->hwirq);
1245 pistachio_gpio_irq_unmask(data);
1250 static int pistachio_gpio_irq_set_type(struct irq_data *data, unsigned int type)
1252 struct pistachio_gpio_bank *bank = irqd_to_bank(data);
1254 switch (type & IRQ_TYPE_SENSE_MASK) {
1255 case IRQ_TYPE_EDGE_RISING:
1256 gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 1);
1257 gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq,
1258 GPIO_INTERRUPT_TYPE_EDGE);
1259 gpio_mask_writel(bank, GPIO_INTERRUPT_EDGE, data->hwirq,
1260 GPIO_INTERRUPT_EDGE_SINGLE);
1262 case IRQ_TYPE_EDGE_FALLING:
1263 gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 0);
1264 gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq,
1265 GPIO_INTERRUPT_TYPE_EDGE);
1266 gpio_mask_writel(bank, GPIO_INTERRUPT_EDGE, data->hwirq,
1267 GPIO_INTERRUPT_EDGE_SINGLE);
1269 case IRQ_TYPE_EDGE_BOTH:
1270 gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq,
1271 GPIO_INTERRUPT_TYPE_EDGE);
1272 gpio_mask_writel(bank, GPIO_INTERRUPT_EDGE, data->hwirq,
1273 GPIO_INTERRUPT_EDGE_DUAL);
1275 case IRQ_TYPE_LEVEL_HIGH:
1276 gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 1);
1277 gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq,
1278 GPIO_INTERRUPT_TYPE_LEVEL);
1280 case IRQ_TYPE_LEVEL_LOW:
1281 gpio_mask_writel(bank, GPIO_INPUT_POLARITY, data->hwirq, 0);
1282 gpio_mask_writel(bank, GPIO_INTERRUPT_TYPE, data->hwirq,
1283 GPIO_INTERRUPT_TYPE_LEVEL);
1289 if (type & IRQ_TYPE_LEVEL_MASK)
1290 irq_set_handler_locked(data, handle_level_irq);
1292 irq_set_handler_locked(data, handle_edge_irq);
1297 static void pistachio_gpio_irq_handler(struct irq_desc *desc)
1299 struct gpio_chip *gc = irq_desc_get_handler_data(desc);
1300 struct pistachio_gpio_bank *bank = gpiochip_get_data(gc);
1301 struct irq_chip *chip = irq_desc_get_chip(desc);
1302 unsigned long pending;
1305 chained_irq_enter(chip, desc);
1306 pending = gpio_readl(bank, GPIO_INTERRUPT_STATUS) &
1307 gpio_readl(bank, GPIO_INTERRUPT_EN);
1308 for_each_set_bit(pin, &pending, 16)
1309 generic_handle_irq(irq_linear_revmap(gc->irq.domain, pin));
1310 chained_irq_exit(chip, desc);
1313 #define GPIO_BANK(_bank, _pin_base, _npins) \
1315 .pin_base = _pin_base, \
1318 .label = "GPIO" #_bank, \
1319 .request = gpiochip_generic_request, \
1320 .free = gpiochip_generic_free, \
1321 .get_direction = pistachio_gpio_get_direction, \
1322 .direction_input = pistachio_gpio_direction_input, \
1323 .direction_output = pistachio_gpio_direction_output, \
1324 .get = pistachio_gpio_get, \
1325 .set = pistachio_gpio_set, \
1326 .base = _pin_base, \
1330 .name = "GPIO" #_bank, \
1331 .irq_startup = pistachio_gpio_irq_startup, \
1332 .irq_ack = pistachio_gpio_irq_ack, \
1333 .irq_mask = pistachio_gpio_irq_mask, \
1334 .irq_unmask = pistachio_gpio_irq_unmask, \
1335 .irq_set_type = pistachio_gpio_irq_set_type, \
1339 static struct pistachio_gpio_bank pistachio_gpio_banks[] = {
1340 GPIO_BANK(0, PISTACHIO_PIN_MFIO(0), 16),
1341 GPIO_BANK(1, PISTACHIO_PIN_MFIO(16), 16),
1342 GPIO_BANK(2, PISTACHIO_PIN_MFIO(32), 16),
1343 GPIO_BANK(3, PISTACHIO_PIN_MFIO(48), 16),
1344 GPIO_BANK(4, PISTACHIO_PIN_MFIO(64), 16),
1345 GPIO_BANK(5, PISTACHIO_PIN_MFIO(80), 10),
1348 static int pistachio_gpio_register(struct pistachio_pinctrl *pctl)
1350 struct device_node *node = pctl->dev->of_node;
1351 struct pistachio_gpio_bank *bank;
1355 for (i = 0; i < pctl->nbanks; i++) {
1356 char child_name[sizeof("gpioXX")];
1357 struct device_node *child;
1358 struct gpio_irq_chip *girq;
1360 snprintf(child_name, sizeof(child_name), "gpio%d", i);
1361 child = of_get_child_by_name(node, child_name);
1363 dev_err(pctl->dev, "No node for bank %u\n", i);
1368 if (!of_find_property(child, "gpio-controller", NULL)) {
1370 "No gpio-controller property for bank %u\n", i);
1376 irq = irq_of_parse_and_map(child, 0);
1378 dev_err(pctl->dev, "No IRQ for bank %u: %d\n", i, irq);
1384 bank = &pctl->gpio_banks[i];
1386 bank->base = pctl->base + GPIO_BANK_BASE(i);
1388 bank->gpio_chip.parent = pctl->dev;
1389 bank->gpio_chip.of_node = child;
1391 girq = &bank->gpio_chip.irq;
1392 girq->chip = &bank->irq_chip;
1393 girq->parent_handler = pistachio_gpio_irq_handler;
1394 girq->num_parents = 1;
1395 girq->parents = devm_kcalloc(pctl->dev, 1,
1396 sizeof(*girq->parents),
1398 if (!girq->parents) {
1402 girq->parents[0] = irq;
1403 girq->default_type = IRQ_TYPE_NONE;
1404 girq->handler = handle_level_irq;
1406 ret = gpiochip_add_data(&bank->gpio_chip, bank);
1408 dev_err(pctl->dev, "Failed to add GPIO chip %u: %d\n",
1413 ret = gpiochip_add_pin_range(&bank->gpio_chip,
1414 dev_name(pctl->dev), 0,
1415 bank->pin_base, bank->npins);
1417 dev_err(pctl->dev, "Failed to add GPIO range %u: %d\n",
1419 gpiochip_remove(&bank->gpio_chip);
1426 for (; i > 0; i--) {
1427 bank = &pctl->gpio_banks[i - 1];
1428 gpiochip_remove(&bank->gpio_chip);
1433 static const struct of_device_id pistachio_pinctrl_of_match[] = {
1434 { .compatible = "img,pistachio-system-pinctrl", },
1438 static int pistachio_pinctrl_probe(struct platform_device *pdev)
1440 struct pistachio_pinctrl *pctl;
1442 pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL);
1445 pctl->dev = &pdev->dev;
1446 dev_set_drvdata(&pdev->dev, pctl);
1448 pctl->base = devm_platform_ioremap_resource(pdev, 0);
1449 if (IS_ERR(pctl->base))
1450 return PTR_ERR(pctl->base);
1452 pctl->pins = pistachio_pins;
1453 pctl->npins = ARRAY_SIZE(pistachio_pins);
1454 pctl->functions = pistachio_functions;
1455 pctl->nfunctions = ARRAY_SIZE(pistachio_functions);
1456 pctl->groups = pistachio_groups;
1457 pctl->ngroups = ARRAY_SIZE(pistachio_groups);
1458 pctl->gpio_banks = pistachio_gpio_banks;
1459 pctl->nbanks = ARRAY_SIZE(pistachio_gpio_banks);
1461 pistachio_pinctrl_desc.pins = pctl->pins;
1462 pistachio_pinctrl_desc.npins = pctl->npins;
1464 pctl->pctldev = devm_pinctrl_register(&pdev->dev, &pistachio_pinctrl_desc,
1466 if (IS_ERR(pctl->pctldev)) {
1467 dev_err(&pdev->dev, "Failed to register pinctrl device\n");
1468 return PTR_ERR(pctl->pctldev);
1471 return pistachio_gpio_register(pctl);
1474 static struct platform_driver pistachio_pinctrl_driver = {
1476 .name = "pistachio-pinctrl",
1477 .of_match_table = pistachio_pinctrl_of_match,
1478 .suppress_bind_attrs = true,
1480 .probe = pistachio_pinctrl_probe,
1483 static int __init pistachio_pinctrl_register(void)
1485 return platform_driver_register(&pistachio_pinctrl_driver);
1487 arch_initcall(pistachio_pinctrl_register);