arch/arm/mach-s3c24xx/mach-vr1000.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 //
   3 // Copyright (c) 2003-2008 Simtec Electronics
   4 //   Ben Dooks <ben@simtec.co.uk>
   5 //
   6 // Machine support for Thorcom VR1000 board. Designed for Thorcom by
   7 // Simtec Electronics, http://www.simtec.co.uk/
   8
   9 #include <linux/kernel.h>
  10 #include <linux/types.h>
  11 #include <linux/interrupt.h>
  12 #include <linux/list.h>
  13 #include <linux/timer.h>
  14 #include <linux/init.h>
  15 #include <linux/gpio.h>
  16 #include <linux/gpio/machine.h>
  17 #include <linux/dm9000.h>
  18 #include <linux/i2c.h>
  19
  20 #include <linux/serial.h>
  21 #include <linux/tty.h>
  22 #include <linux/serial_8250.h>
  23 #include <linux/serial_reg.h>
  24 #include <linux/serial_s3c.h>
  25 #include <linux/io.h>
  26
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/irq.h>
  30
  31 #include <asm/irq.h>
  32 #include <asm/mach-types.h>
  33
  34 #include <linux/platform_data/leds-s3c24xx.h>
  35 #include <linux/platform_data/i2c-s3c2410.h>
  36 #include <linux/platform_data/asoc-s3c24xx_simtec.h>
  37
  38 #include <mach/hardware.h>
  39 #include <mach/regs-gpio.h>
  40 #include <mach/gpio-samsung.h>
  41
  42 #include <plat/cpu.h>
  43 #include <plat/devs.h>
  44 #include <plat/gpio-cfg.h>
  45 #include <plat/samsung-time.h>
  46
  47 #include "bast.h"
  48 #include "common.h"
  49 #include "simtec.h"
  50 #include "vr1000.h"
  51
  52 /* macros for virtual address mods for the io space entries */
  53 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  54 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  55 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  56 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  57
  58 /* macros to modify the physical addresses for io space */
  59
  60 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  61 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  62 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  63 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  64
  65 static struct map_desc vr1000_iodesc[] __initdata = {
  66   /* ISA IO areas */
  67   {
  68           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  69           .pfn          = PA_CS2(BAST_PA_ISAIO),
  70           .length       = SZ_16M,
  71           .type         = MT_DEVICE,
  72   }, {
  73           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  74           .pfn          = PA_CS3(BAST_PA_ISAIO),
  75           .length       = SZ_16M,
  76           .type         = MT_DEVICE,
  77   },
  78
  79   /*  CPLD control registers, and external interrupt controls */
  80   {
  81           .virtual      = (u32)VR1000_VA_CTRL1,
  82           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  83           .length       = SZ_1M,
  84           .type         = MT_DEVICE,
  85   }, {
  86           .virtual      = (u32)VR1000_VA_CTRL2,
  87           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  88           .length       = SZ_1M,
  89           .type         = MT_DEVICE,
  90   }, {
  91           .virtual      = (u32)VR1000_VA_CTRL3,
  92           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  93           .length       = SZ_1M,
  94           .type         = MT_DEVICE,
  95   }, {
  96           .virtual      = (u32)VR1000_VA_CTRL4,
  97           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
  98           .length       = SZ_1M,
  99           .type         = MT_DEVICE,
 100   },
 101 };
 102
 103 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 104 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 105 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 106
 107 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 108         [0] = {
 109                 .hwport      = 0,
 110                 .flags       = 0,
 111                 .ucon        = UCON,
 112                 .ulcon       = ULCON,
 113                 .ufcon       = UFCON,
 114         },
 115         [1] = {
 116                 .hwport      = 1,
 117                 .flags       = 0,
 118                 .ucon        = UCON,
 119                 .ulcon       = ULCON,
 120                 .ufcon       = UFCON,
 121         },
 122         /* port 2 is not actually used */
 123         [2] = {
 124                 .hwport      = 2,
 125                 .flags       = 0,
 126                 .ucon        = UCON,
 127                 .ulcon       = ULCON,
 128                 .ufcon       = UFCON,
 129         }
 130 };
 131
 132 /* definitions for the vr1000 extra 16550 serial ports */
 133
 134 #define VR1000_BAUDBASE (3692307)
 135
 136 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 137
 138 static struct plat_serial8250_port serial_platform_data[] = {
 139         [0] = {
 140                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 141                 .irq            = VR1000_IRQ_SERIAL + 0,
 142                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 143                 .iotype         = UPIO_MEM,
 144                 .regshift       = 0,
 145                 .uartclk        = VR1000_BAUDBASE,
 146         },
 147         [1] = {
 148                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 149                 .irq            = VR1000_IRQ_SERIAL + 1,
 150                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 151                 .iotype         = UPIO_MEM,
 152                 .regshift       = 0,
 153                 .uartclk        = VR1000_BAUDBASE,
 154         },
 155         [2] = {
 156                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 157                 .irq            = VR1000_IRQ_SERIAL + 2,
 158                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 159                 .iotype         = UPIO_MEM,
 160                 .regshift       = 0,
 161                 .uartclk        = VR1000_BAUDBASE,
 162         },
 163         [3] = {
 164                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 165                 .irq            = VR1000_IRQ_SERIAL + 3,
 166                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 167                 .iotype         = UPIO_MEM,
 168                 .regshift       = 0,
 169                 .uartclk        = VR1000_BAUDBASE,
 170         },
 171         { },
 172 };
 173
 174 static struct platform_device serial_device = {
 175         .name                   = "serial8250",
 176         .id                     = PLAT8250_DEV_PLATFORM,
 177         .dev                    = {
 178                 .platform_data  = serial_platform_data,
 179         },
 180 };
 181
 182 /* DM9000 ethernet devices */
 183
 184 static struct resource vr1000_dm9k0_resource[] = {
 185         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 186         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 187         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
 188                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 189 };
 190
 191 static struct resource vr1000_dm9k1_resource[] = {
 192         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 193         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 194         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
 195                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 196 };
 197
 198 /* for the moment we limit ourselves to 16bit IO until some
 199  * better IO routines can be written and tested
 200 */
 201
 202 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 203         .flags          = DM9000_PLATF_16BITONLY,
 204 };
 205
 206 static struct platform_device vr1000_dm9k0 = {
 207         .name           = "dm9000",
 208         .id             = 0,
 209         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 210         .resource       = vr1000_dm9k0_resource,
 211         .dev            = {
 212                 .platform_data = &vr1000_dm9k_platdata,
 213         }
 214 };
 215
 216 static struct platform_device vr1000_dm9k1 = {
 217         .name           = "dm9000",
 218         .id             = 1,
 219         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 220         .resource       = vr1000_dm9k1_resource,
 221         .dev            = {
 222                 .platform_data = &vr1000_dm9k_platdata,
 223         }
 224 };
 225
 226 /* LEDS */
 227
 228 static struct gpiod_lookup_table vr1000_led1_gpio_table = {
 229         .dev_id = "s3c24xx_led.1",
 230         .table = {
 231                 GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
 232                 { },
 233         },
 234 };
 235
 236 static struct gpiod_lookup_table vr1000_led2_gpio_table = {
 237         .dev_id = "s3c24xx_led.2",
 238         .table = {
 239                 GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
 240                 { },
 241         },
 242 };
 243
 244 static struct gpiod_lookup_table vr1000_led3_gpio_table = {
 245         .dev_id = "s3c24xx_led.3",
 246         .table = {
 247                 GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
 248                 { },
 249         },
 250 };
 251
 252 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 253         .name           = "led1",
 254         .def_trigger    = "",
 255 };
 256
 257 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 258         .name           = "led2",
 259         .def_trigger    = "",
 260 };
 261
 262 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 263         .name           = "led3",
 264         .def_trigger    = "",
 265 };
 266
 267 static struct platform_device vr1000_led1 = {
 268         .name           = "s3c24xx_led",
 269         .id             = 1,
 270         .dev            = {
 271                 .platform_data  = &vr1000_led1_pdata,
 272         },
 273 };
 274
 275 static struct platform_device vr1000_led2 = {
 276         .name           = "s3c24xx_led",
 277         .id             = 2,
 278         .dev            = {
 279                 .platform_data  = &vr1000_led2_pdata,
 280         },
 281 };
 282
 283 static struct platform_device vr1000_led3 = {
 284         .name           = "s3c24xx_led",
 285         .id             = 3,
 286         .dev            = {
 287                 .platform_data  = &vr1000_led3_pdata,
 288         },
 289 };
 290
 291 /* I2C devices. */
 292
 293 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 294         {
 295                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 296         }, {
 297                 I2C_BOARD_INFO("tmp101", 0x48),
 298         }, {
 299                 I2C_BOARD_INFO("m41st87", 0x68),
 300         },
 301 };
 302
 303 /* devices for this board */
 304
 305 static struct platform_device *vr1000_devices[] __initdata = {
 306         &s3c2410_device_dclk,
 307         &s3c_device_ohci,
 308         &s3c_device_lcd,
 309         &s3c_device_wdt,
 310         &s3c_device_i2c0,
 311         &s3c_device_adc,
 312         &serial_device,
 313         &vr1000_dm9k0,
 314         &vr1000_dm9k1,
 315         &vr1000_led1,
 316         &vr1000_led2,
 317         &vr1000_led3,
 318 };
 319
 320 static void vr1000_power_off(void)
 321 {
 322         gpio_direction_output(S3C2410_GPB(9), 1);
 323 }
 324
 325 static void __init vr1000_map_io(void)
 326 {
 327         pm_power_off = vr1000_power_off;
 328
 329         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 330         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 331         samsung_set_timer_source(SAMSUNG_PWM3, SAMSUNG_PWM4);
 332 }
 333
 334 static void __init vr1000_init_time(void)
 335 {
 336         s3c2410_init_clocks(12000000);
 337         samsung_timer_init();
 338 }
 339
 340 static void __init vr1000_init(void)
 341 {
 342         s3c_i2c0_set_platdata(NULL);
 343
 344         /* Disable pull-up on LED lines and register GPIO lookups */
 345         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 346         s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
 347         s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
 348         gpiod_add_lookup_table(&vr1000_led1_gpio_table);
 349         gpiod_add_lookup_table(&vr1000_led2_gpio_table);
 350         gpiod_add_lookup_table(&vr1000_led3_gpio_table);
 351
 352         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 353
 354         i2c_register_board_info(0, vr1000_i2c_devs,
 355                                 ARRAY_SIZE(vr1000_i2c_devs));
 356
 357         nor_simtec_init();
 358         simtec_audio_add(NULL, true, NULL);
 359
 360         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 361 }
 362
 363 MACHINE_START(VR1000, "Thorcom-VR1000")
 364         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 365         .atag_offset    = 0x100,
 366         .map_io         = vr1000_map_io,
 367         .init_machine   = vr1000_init,
 368         .init_irq       = s3c2410_init_irq,
 369         .init_time      = vr1000_init_time,
 370 MACHINE_END