drivers/pinctrl/mscc/pinctrl-jr2.c

   1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
   2 /*
   3  * Microsemi SoCs pinctrl driver
   4  *
   5  * Author: <horatiu.vultur@microchip.com>
   6  * Copyright (c) 2018 Microsemi Corporation
   7  */
   8
   9 #include <common.h>
  10 #include <config.h>
  11 #include <dm.h>
  12 #include <dm/device-internal.h>
  13 #include <dm/lists.h>
  14 #include <dm/pinctrl.h>
  15 #include <dm/root.h>
  16 #include <errno.h>
  17 #include <fdtdec.h>
  18 #include <linux/io.h>
  19 #include <asm/gpio.h>
  20 #include <asm/system.h>
  21 #include "mscc-common.h"
  22
  23 enum {
  24         FUNC_NONE,
  25         FUNC_GPIO,
  26         FUNC_IRQ0_IN,
  27         FUNC_IRQ0_OUT,
  28         FUNC_IRQ1_IN,
  29         FUNC_IRQ1_OUT,
  30         FUNC_MIIM1,
  31         FUNC_MIIM2,
  32         FUNC_PCI_WAKE,
  33         FUNC_PTP0,
  34         FUNC_PTP1,
  35         FUNC_PTP2,
  36         FUNC_PTP3,
  37         FUNC_PWM,
  38         FUNC_RECO_CLK0,
  39         FUNC_RECO_CLK1,
  40         FUNC_SFP0,
  41         FUNC_SFP1,
  42         FUNC_SFP2,
  43         FUNC_SFP3,
  44         FUNC_SFP4,
  45         FUNC_SFP5,
  46         FUNC_SFP6,
  47         FUNC_SFP7,
  48         FUNC_SFP8,
  49         FUNC_SFP9,
  50         FUNC_SFP10,
  51         FUNC_SFP11,
  52         FUNC_SFP12,
  53         FUNC_SFP13,
  54         FUNC_SFP14,
  55         FUNC_SFP15,
  56         FUNC_SG0,
  57         FUNC_SG1,
  58         FUNC_SG2,
  59         FUNC_SI,
  60         FUNC_TACHO,
  61         FUNC_TWI,
  62         FUNC_TWI2,
  63         FUNC_TWI_SCL_M,
  64         FUNC_UART,
  65         FUNC_UART2,
  66         FUNC_MAX
  67 };
  68
  69 static char * const jr2_function_names[] = {
  70         [FUNC_NONE]             = "none",
  71         [FUNC_GPIO]             = "gpio",
  72         [FUNC_IRQ0_IN]          = "irq0_in",
  73         [FUNC_IRQ0_OUT]         = "irq0_out",
  74         [FUNC_IRQ1_IN]          = "irq1_in",
  75         [FUNC_IRQ1_OUT]         = "irq1_out",
  76         [FUNC_MIIM1]            = "miim1",
  77         [FUNC_MIIM2]            = "miim2",
  78         [FUNC_PCI_WAKE]         = "pci_wake",
  79         [FUNC_PTP0]             = "ptp0",
  80         [FUNC_PTP1]             = "ptp1",
  81         [FUNC_PTP2]             = "ptp2",
  82         [FUNC_PTP3]             = "ptp3",
  83         [FUNC_PWM]              = "pwm",
  84         [FUNC_RECO_CLK0]        = "reco_clk0",
  85         [FUNC_RECO_CLK1]        = "reco_clk1",
  86         [FUNC_SFP0]             = "sfp0",
  87         [FUNC_SFP1]             = "sfp1",
  88         [FUNC_SFP2]             = "sfp2",
  89         [FUNC_SFP3]             = "sfp3",
  90         [FUNC_SFP4]             = "sfp4",
  91         [FUNC_SFP5]             = "sfp5",
  92         [FUNC_SFP6]             = "sfp6",
  93         [FUNC_SFP7]             = "sfp7",
  94         [FUNC_SFP8]             = "sfp8",
  95         [FUNC_SFP9]             = "sfp9",
  96         [FUNC_SFP10]            = "sfp10",
  97         [FUNC_SFP11]            = "sfp11",
  98         [FUNC_SFP12]            = "sfp12",
  99         [FUNC_SFP13]            = "sfp13",
 100         [FUNC_SFP14]            = "sfp14",
 101         [FUNC_SFP15]            = "sfp15",
 102         [FUNC_SG0]              = "sg0",
 103         [FUNC_SG1]              = "sg1",
 104         [FUNC_SG2]              = "sg2",
 105         [FUNC_SI]               = "si",
 106         [FUNC_TACHO]            = "tacho",
 107         [FUNC_TWI]              = "twi",
 108         [FUNC_TWI2]             = "twi2",
 109         [FUNC_TWI_SCL_M]        = "twi_scl_m",
 110         [FUNC_UART]             = "uart",
 111         [FUNC_UART2]            = "uart2",
 112 };
 113
 114 #define JR2_P(p, f0, f1)                                                \
 115 static struct mscc_pin_caps jr2_pin_##p = {                             \
 116         .pin = p,                                                       \
 117         .functions = {                                                  \
 118                         FUNC_GPIO, FUNC_##f0, FUNC_##f1, FUNC_NONE      \
 119         },                                                              \
 120 }
 121
 122 JR2_P(0,  SG0,       NONE);
 123 JR2_P(1,  SG0,       NONE);
 124 JR2_P(2,  SG0,       NONE);
 125 JR2_P(3,  SG0,       NONE);
 126 JR2_P(4,  SG1,       NONE);
 127 JR2_P(5,  SG1,       NONE);
 128 JR2_P(6,  IRQ0_IN,   IRQ0_OUT);
 129 JR2_P(7,  IRQ1_IN,   IRQ1_OUT);
 130 JR2_P(8,  PTP0,      NONE);
 131 JR2_P(9,  PTP1,      NONE);
 132 JR2_P(10, UART,      NONE);
 133 JR2_P(11, UART,      NONE);
 134 JR2_P(12, SG1,       NONE);
 135 JR2_P(13, SG1,       NONE);
 136 JR2_P(14, TWI,       TWI_SCL_M);
 137 JR2_P(15, TWI,       NONE);
 138 JR2_P(16, SI,        TWI_SCL_M);
 139 JR2_P(17, SI,        TWI_SCL_M);
 140 JR2_P(18, SI,        TWI_SCL_M);
 141 JR2_P(19, PCI_WAKE,  NONE);
 142 JR2_P(20, IRQ0_OUT,  TWI_SCL_M);
 143 JR2_P(21, IRQ1_OUT,  TWI_SCL_M);
 144 JR2_P(22, TACHO,     NONE);
 145 JR2_P(23, PWM,       NONE);
 146 JR2_P(24, UART2,     NONE);
 147 JR2_P(25, UART2,     SI);
 148 JR2_P(26, PTP2,      SI);
 149 JR2_P(27, PTP3,      SI);
 150 JR2_P(28, TWI2,      SI);
 151 JR2_P(29, TWI,       SI);
 152 JR2_P(30, SG2,       SI);
 153 JR2_P(31, SG2,       SI);
 154 JR2_P(32, SG2,       SI);
 155 JR2_P(33, SG2,       SI);
 156 JR2_P(34, NONE,      TWI_SCL_M);
 157 JR2_P(35, NONE,      TWI_SCL_M);
 158 JR2_P(36, NONE,      TWI_SCL_M);
 159 JR2_P(37, NONE,      TWI_SCL_M);
 160 JR2_P(38, NONE,      TWI_SCL_M);
 161 JR2_P(39, NONE,      TWI_SCL_M);
 162 JR2_P(40, NONE,      TWI_SCL_M);
 163 JR2_P(41, NONE,      TWI_SCL_M);
 164 JR2_P(42, NONE,      TWI_SCL_M);
 165 JR2_P(43, NONE,      TWI_SCL_M);
 166 JR2_P(44, NONE,      SFP8);
 167 JR2_P(45, NONE,      SFP9);
 168 JR2_P(46, NONE,      SFP10);
 169 JR2_P(47, NONE,      SFP11);
 170 JR2_P(48, SFP0,      NONE);
 171 JR2_P(49, SFP1,      SI);
 172 JR2_P(50, SFP2,      SI);
 173 JR2_P(51, SFP3,      SI);
 174 JR2_P(52, SFP4,      NONE);
 175 JR2_P(53, SFP5,      NONE);
 176 JR2_P(54, SFP6,      NONE);
 177 JR2_P(55, SFP7,      NONE);
 178 JR2_P(56, MIIM1,     SFP12);
 179 JR2_P(57, MIIM1,     SFP13);
 180 JR2_P(58, MIIM2,     SFP14);
 181 JR2_P(59, MIIM2,     SFP15);
 182 JR2_P(60, NONE,      NONE);
 183 JR2_P(61, NONE,      NONE);
 184 JR2_P(62, NONE,      NONE);
 185 JR2_P(63, NONE,      NONE);
 186
 187 #define JR2_PIN(n) {                                            \
 188         .name = "GPIO_"#n,                                      \
 189         .drv_data = &jr2_pin_##n                                \
 190 }
 191
 192 static const struct mscc_pin_data jr2_pins[] = {
 193         JR2_PIN(0),
 194         JR2_PIN(1),
 195         JR2_PIN(2),
 196         JR2_PIN(3),
 197         JR2_PIN(4),
 198         JR2_PIN(5),
 199         JR2_PIN(6),
 200         JR2_PIN(7),
 201         JR2_PIN(8),
 202         JR2_PIN(9),
 203         JR2_PIN(10),
 204         JR2_PIN(11),
 205         JR2_PIN(12),
 206         JR2_PIN(13),
 207         JR2_PIN(14),
 208         JR2_PIN(15),
 209         JR2_PIN(16),
 210         JR2_PIN(17),
 211         JR2_PIN(18),
 212         JR2_PIN(19),
 213         JR2_PIN(20),
 214         JR2_PIN(21),
 215         JR2_PIN(22),
 216         JR2_PIN(23),
 217         JR2_PIN(24),
 218         JR2_PIN(25),
 219         JR2_PIN(26),
 220         JR2_PIN(27),
 221         JR2_PIN(28),
 222         JR2_PIN(29),
 223         JR2_PIN(30),
 224         JR2_PIN(31),
 225         JR2_PIN(32),
 226         JR2_PIN(33),
 227         JR2_PIN(34),
 228         JR2_PIN(35),
 229         JR2_PIN(36),
 230         JR2_PIN(37),
 231         JR2_PIN(38),
 232         JR2_PIN(39),
 233         JR2_PIN(40),
 234         JR2_PIN(41),
 235         JR2_PIN(42),
 236         JR2_PIN(43),
 237         JR2_PIN(44),
 238         JR2_PIN(45),
 239         JR2_PIN(46),
 240         JR2_PIN(47),
 241         JR2_PIN(48),
 242         JR2_PIN(49),
 243         JR2_PIN(50),
 244         JR2_PIN(51),
 245         JR2_PIN(52),
 246         JR2_PIN(53),
 247         JR2_PIN(54),
 248         JR2_PIN(55),
 249         JR2_PIN(56),
 250         JR2_PIN(57),
 251         JR2_PIN(58),
 252         JR2_PIN(59),
 253         JR2_PIN(60),
 254         JR2_PIN(61),
 255         JR2_PIN(62),
 256         JR2_PIN(63),
 257 };
 258
 259 static const unsigned long jr2_gpios[] = {
 260         [MSCC_GPIO_OUT_SET] = 0x00,
 261         [MSCC_GPIO_OUT_CLR] = 0x08,
 262         [MSCC_GPIO_OUT] = 0x10,
 263         [MSCC_GPIO_IN] = 0x18,
 264         [MSCC_GPIO_OE] = 0x20,
 265         [MSCC_GPIO_INTR] = 0x28,
 266         [MSCC_GPIO_INTR_ENA] = 0x30,
 267         [MSCC_GPIO_INTR_IDENT] = 0x38,
 268         [MSCC_GPIO_ALT0] = 0x40,
 269         [MSCC_GPIO_ALT1] = 0x48,
 270 };
 271
 272 static int jr2_gpio_probe(struct udevice *dev)
 273 {
 274         struct gpio_dev_priv *uc_priv;
 275
 276         uc_priv = dev_get_uclass_priv(dev);
 277         uc_priv->bank_name = "jr2-gpio";
 278         uc_priv->gpio_count = ARRAY_SIZE(jr2_pins);
 279
 280         return 0;
 281 }
 282
 283 static struct driver jr2_gpio_driver = {
 284         .name   = "jr2-gpio",
 285         .id     = UCLASS_GPIO,
 286         .probe  = jr2_gpio_probe,
 287         .ops    = &mscc_gpio_ops,
 288 };
 289
 290 static int jr2_pinctrl_probe(struct udevice *dev)
 291 {
 292         int ret;
 293
 294         ret = mscc_pinctrl_probe(dev, FUNC_MAX, jr2_pins,
 295                                  ARRAY_SIZE(jr2_pins),
 296                                  jr2_function_names,
 297                                  jr2_gpios);
 298
 299         if (ret)
 300                 return ret;
 301
 302         ret = device_bind(dev, &jr2_gpio_driver, "jr2-gpio", NULL,
 303                           dev_of_offset(dev), NULL);
 304
 305         if (ret)
 306                 return ret;
 307
 308         return 0;
 309 }
 310
 311 static const struct udevice_id jr2_pinctrl_of_match[] = {
 312         { .compatible = "mscc,jaguar2-pinctrl" },
 313         {},
 314 };
 315
 316 U_BOOT_DRIVER(jr2_pinctrl) = {
 317         .name = "jr2-pinctrl",
 318         .id = UCLASS_PINCTRL,
 319         .of_match = of_match_ptr(jr2_pinctrl_of_match),
 320         .probe = jr2_pinctrl_probe,
 321         .priv_auto_alloc_size = sizeof(struct mscc_pinctrl),
 322         .ops = &mscc_pinctrl_ops,
 323 };