arch/arm/mach-omap1/gpio7xx.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * OMAP7xx specific gpio init
   4  *
   5  * Copyright (C) 2010 Texas Instruments Incorporated - https://www.ti.com/
   6  *
   7  * Author:
   8  *      Charulatha V <charu@ti.com>
   9  */
  10
  11 #include <linux/gpio.h>
  12 #include <linux/platform_data/gpio-omap.h>
  13
  14 #include "irqs.h"
  15 #include "soc.h"
  16
  17 #define OMAP7XX_GPIO1_BASE              0xfffbc000
  18 #define OMAP7XX_GPIO2_BASE              0xfffbc800
  19 #define OMAP7XX_GPIO3_BASE              0xfffbd000
  20 #define OMAP7XX_GPIO4_BASE              0xfffbd800
  21 #define OMAP7XX_GPIO5_BASE              0xfffbe000
  22 #define OMAP7XX_GPIO6_BASE              0xfffbe800
  23 #define OMAP1_MPUIO_VBASE               OMAP1_MPUIO_BASE
  24
  25 /* mpu gpio */
  26 static struct resource omap7xx_mpu_gpio_resources[] = {
  27         {
  28                 .start  = OMAP1_MPUIO_VBASE,
  29                 .end    = OMAP1_MPUIO_VBASE + SZ_2K - 1,
  30                 .flags  = IORESOURCE_MEM,
  31         },
  32         {
  33                 .start  = INT_7XX_MPUIO,
  34                 .flags  = IORESOURCE_IRQ,
  35         },
  36 };
  37
  38 static struct omap_gpio_reg_offs omap7xx_mpuio_regs = {
  39         .revision       = USHRT_MAX,
  40         .direction      = OMAP_MPUIO_IO_CNTL / 2,
  41         .datain         = OMAP_MPUIO_INPUT_LATCH / 2,
  42         .dataout        = OMAP_MPUIO_OUTPUT / 2,
  43         .irqstatus      = OMAP_MPUIO_GPIO_INT / 2,
  44         .irqenable      = OMAP_MPUIO_GPIO_MASKIT / 2,
  45         .irqenable_inv  = true,
  46         .irqctrl        = OMAP_MPUIO_GPIO_INT_EDGE >> 1,
  47 };
  48
  49 static struct omap_gpio_platform_data omap7xx_mpu_gpio_config = {
  50         .is_mpuio               = true,
  51         .bank_width             = 16,
  52         .bank_stride            = 2,
  53         .regs                   = &omap7xx_mpuio_regs,
  54 };
  55
  56 static struct platform_device omap7xx_mpu_gpio = {
  57         .name           = "omap_gpio",
  58         .id             = 0,
  59         .dev            = {
  60                 .platform_data = &omap7xx_mpu_gpio_config,
  61         },
  62         .num_resources = ARRAY_SIZE(omap7xx_mpu_gpio_resources),
  63         .resource = omap7xx_mpu_gpio_resources,
  64 };
  65
  66 /* gpio1 */
  67 static struct resource omap7xx_gpio1_resources[] = {
  68         {
  69                 .start  = OMAP7XX_GPIO1_BASE,
  70                 .end    = OMAP7XX_GPIO1_BASE + SZ_2K - 1,
  71                 .flags  = IORESOURCE_MEM,
  72         },
  73         {
  74                 .start  = INT_7XX_GPIO_BANK1,
  75                 .flags  = IORESOURCE_IRQ,
  76         },
  77 };
  78
  79 static struct omap_gpio_reg_offs omap7xx_gpio_regs = {
  80         .revision       = USHRT_MAX,
  81         .direction      = OMAP7XX_GPIO_DIR_CONTROL,
  82         .datain         = OMAP7XX_GPIO_DATA_INPUT,
  83         .dataout        = OMAP7XX_GPIO_DATA_OUTPUT,
  84         .irqstatus      = OMAP7XX_GPIO_INT_STATUS,
  85         .irqenable      = OMAP7XX_GPIO_INT_MASK,
  86         .irqenable_inv  = true,
  87         .irqctrl        = OMAP7XX_GPIO_INT_CONTROL,
  88 };
  89
  90 static struct omap_gpio_platform_data omap7xx_gpio1_config = {
  91         .bank_width             = 32,
  92         .regs                   = &omap7xx_gpio_regs,
  93 };
  94
  95 static struct platform_device omap7xx_gpio1 = {
  96         .name           = "omap_gpio",
  97         .id             = 1,
  98         .dev            = {
  99                 .platform_data = &omap7xx_gpio1_config,
 100         },
 101         .num_resources = ARRAY_SIZE(omap7xx_gpio1_resources),
 102         .resource = omap7xx_gpio1_resources,
 103 };
 104
 105 /* gpio2 */
 106 static struct resource omap7xx_gpio2_resources[] = {
 107         {
 108                 .start  = OMAP7XX_GPIO2_BASE,
 109                 .end    = OMAP7XX_GPIO2_BASE + SZ_2K - 1,
 110                 .flags  = IORESOURCE_MEM,
 111         },
 112         {
 113                 .start  = INT_7XX_GPIO_BANK2,
 114                 .flags  = IORESOURCE_IRQ,
 115         },
 116 };
 117
 118 static struct omap_gpio_platform_data omap7xx_gpio2_config = {
 119         .bank_width             = 32,
 120         .regs                   = &omap7xx_gpio_regs,
 121 };
 122
 123 static struct platform_device omap7xx_gpio2 = {
 124         .name           = "omap_gpio",
 125         .id             = 2,
 126         .dev            = {
 127                 .platform_data = &omap7xx_gpio2_config,
 128         },
 129         .num_resources = ARRAY_SIZE(omap7xx_gpio2_resources),
 130         .resource = omap7xx_gpio2_resources,
 131 };
 132
 133 /* gpio3 */
 134 static struct resource omap7xx_gpio3_resources[] = {
 135         {
 136                 .start  = OMAP7XX_GPIO3_BASE,
 137                 .end    = OMAP7XX_GPIO3_BASE + SZ_2K - 1,
 138                 .flags  = IORESOURCE_MEM,
 139         },
 140         {
 141                 .start  = INT_7XX_GPIO_BANK3,
 142                 .flags  = IORESOURCE_IRQ,
 143         },
 144 };
 145
 146 static struct omap_gpio_platform_data omap7xx_gpio3_config = {
 147         .bank_width             = 32,
 148         .regs                   = &omap7xx_gpio_regs,
 149 };
 150
 151 static struct platform_device omap7xx_gpio3 = {
 152         .name           = "omap_gpio",
 153         .id             = 3,
 154         .dev            = {
 155                 .platform_data = &omap7xx_gpio3_config,
 156         },
 157         .num_resources = ARRAY_SIZE(omap7xx_gpio3_resources),
 158         .resource = omap7xx_gpio3_resources,
 159 };
 160
 161 /* gpio4 */
 162 static struct resource omap7xx_gpio4_resources[] = {
 163         {
 164                 .start  = OMAP7XX_GPIO4_BASE,
 165                 .end    = OMAP7XX_GPIO4_BASE + SZ_2K - 1,
 166                 .flags  = IORESOURCE_MEM,
 167         },
 168         {
 169                 .start  = INT_7XX_GPIO_BANK4,
 170                 .flags  = IORESOURCE_IRQ,
 171         },
 172 };
 173
 174 static struct omap_gpio_platform_data omap7xx_gpio4_config = {
 175         .bank_width             = 32,
 176         .regs                   = &omap7xx_gpio_regs,
 177 };
 178
 179 static struct platform_device omap7xx_gpio4 = {
 180         .name           = "omap_gpio",
 181         .id             = 4,
 182         .dev            = {
 183                 .platform_data = &omap7xx_gpio4_config,
 184         },
 185         .num_resources = ARRAY_SIZE(omap7xx_gpio4_resources),
 186         .resource = omap7xx_gpio4_resources,
 187 };
 188
 189 /* gpio5 */
 190 static struct resource omap7xx_gpio5_resources[] = {
 191         {
 192                 .start  = OMAP7XX_GPIO5_BASE,
 193                 .end    = OMAP7XX_GPIO5_BASE + SZ_2K - 1,
 194                 .flags  = IORESOURCE_MEM,
 195         },
 196         {
 197                 .start  = INT_7XX_GPIO_BANK5,
 198                 .flags  = IORESOURCE_IRQ,
 199         },
 200 };
 201
 202 static struct omap_gpio_platform_data omap7xx_gpio5_config = {
 203         .bank_width             = 32,
 204         .regs                   = &omap7xx_gpio_regs,
 205 };
 206
 207 static struct platform_device omap7xx_gpio5 = {
 208         .name           = "omap_gpio",
 209         .id             = 5,
 210         .dev            = {
 211                 .platform_data = &omap7xx_gpio5_config,
 212         },
 213         .num_resources = ARRAY_SIZE(omap7xx_gpio5_resources),
 214         .resource = omap7xx_gpio5_resources,
 215 };
 216
 217 /* gpio6 */
 218 static struct resource omap7xx_gpio6_resources[] = {
 219         {
 220                 .start  = OMAP7XX_GPIO6_BASE,
 221                 .end    = OMAP7XX_GPIO6_BASE + SZ_2K - 1,
 222                 .flags  = IORESOURCE_MEM,
 223         },
 224         {
 225                 .start  = INT_7XX_GPIO_BANK6,
 226                 .flags  = IORESOURCE_IRQ,
 227         },
 228 };
 229
 230 static struct omap_gpio_platform_data omap7xx_gpio6_config = {
 231         .bank_width             = 32,
 232         .regs                   = &omap7xx_gpio_regs,
 233 };
 234
 235 static struct platform_device omap7xx_gpio6 = {
 236         .name           = "omap_gpio",
 237         .id             = 6,
 238         .dev            = {
 239                 .platform_data = &omap7xx_gpio6_config,
 240         },
 241         .num_resources = ARRAY_SIZE(omap7xx_gpio6_resources),
 242         .resource = omap7xx_gpio6_resources,
 243 };
 244
 245 static struct platform_device *omap7xx_gpio_dev[] __initdata = {
 246         &omap7xx_mpu_gpio,
 247         &omap7xx_gpio1,
 248         &omap7xx_gpio2,
 249         &omap7xx_gpio3,
 250         &omap7xx_gpio4,
 251         &omap7xx_gpio5,
 252         &omap7xx_gpio6,
 253 };
 254
 255 /*
 256  * omap7xx_gpio_init needs to be done before
 257  * machine_init functions access gpio APIs.
 258  * Hence omap7xx_gpio_init is a postcore_initcall.
 259  */
 260 static int __init omap7xx_gpio_init(void)
 261 {
 262         int i;
 263
 264         if (!cpu_is_omap7xx())
 265                 return -EINVAL;
 266
 267         for (i = 0; i < ARRAY_SIZE(omap7xx_gpio_dev); i++)
 268                 platform_device_register(omap7xx_gpio_dev[i]);
 269
 270         return 0;
 271 }
 272 postcore_initcall(omap7xx_gpio_init);