arch/arm/mach-s3c/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 "regs-gpio.h"
  39 #include "gpio-samsung.h"
  40 #include "gpio-cfg.h"
  41
  42 #include "cpu.h"
  43 #include "devs.h"
  44
  45 #include "bast.h"
  46 #include "s3c24xx.h"
  47 #include "simtec.h"
  48 #include "vr1000.h"
  49
  50 /* macros for virtual address mods for the io space entries */
  51 #define VA_C5(item) ((unsigned long)(item) + BAST_VAM_CS5)
  52 #define VA_C4(item) ((unsigned long)(item) + BAST_VAM_CS4)
  53 #define VA_C3(item) ((unsigned long)(item) + BAST_VAM_CS3)
  54 #define VA_C2(item) ((unsigned long)(item) + BAST_VAM_CS2)
  55
  56 /* macros to modify the physical addresses for io space */
  57
  58 #define PA_CS2(item) (__phys_to_pfn((item) + S3C2410_CS2))
  59 #define PA_CS3(item) (__phys_to_pfn((item) + S3C2410_CS3))
  60 #define PA_CS4(item) (__phys_to_pfn((item) + S3C2410_CS4))
  61 #define PA_CS5(item) (__phys_to_pfn((item) + S3C2410_CS5))
  62
  63 static struct map_desc vr1000_iodesc[] __initdata = {
  64   /* ISA IO areas */
  65   {
  66           .virtual      = (u32)S3C24XX_VA_ISA_BYTE,
  67           .pfn          = PA_CS2(BAST_PA_ISAIO),
  68           .length       = SZ_16M,
  69           .type         = MT_DEVICE,
  70   }, {
  71           .virtual      = (u32)S3C24XX_VA_ISA_WORD,
  72           .pfn          = PA_CS3(BAST_PA_ISAIO),
  73           .length       = SZ_16M,
  74           .type         = MT_DEVICE,
  75   },
  76
  77   /*  CPLD control registers, and external interrupt controls */
  78   {
  79           .virtual      = (u32)VR1000_VA_CTRL1,
  80           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  81           .length       = SZ_1M,
  82           .type         = MT_DEVICE,
  83   }, {
  84           .virtual      = (u32)VR1000_VA_CTRL2,
  85           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  86           .length       = SZ_1M,
  87           .type         = MT_DEVICE,
  88   }, {
  89           .virtual      = (u32)VR1000_VA_CTRL3,
  90           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  91           .length       = SZ_1M,
  92           .type         = MT_DEVICE,
  93   }, {
  94           .virtual      = (u32)VR1000_VA_CTRL4,
  95           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
  96           .length       = SZ_1M,
  97           .type         = MT_DEVICE,
  98   },
  99 };
 100
 101 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
 102 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 103 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 104
 105 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 106         [0] = {
 107                 .hwport      = 0,
 108                 .flags       = 0,
 109                 .ucon        = UCON,
 110                 .ulcon       = ULCON,
 111                 .ufcon       = UFCON,
 112         },
 113         [1] = {
 114                 .hwport      = 1,
 115                 .flags       = 0,
 116                 .ucon        = UCON,
 117                 .ulcon       = ULCON,
 118                 .ufcon       = UFCON,
 119         },
 120         /* port 2 is not actually used */
 121         [2] = {
 122                 .hwport      = 2,
 123                 .flags       = 0,
 124                 .ucon        = UCON,
 125                 .ulcon       = ULCON,
 126                 .ufcon       = UFCON,
 127         }
 128 };
 129
 130 /* definitions for the vr1000 extra 16550 serial ports */
 131
 132 #define VR1000_BAUDBASE (3692307)
 133
 134 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 135
 136 static struct plat_serial8250_port serial_platform_data[] = {
 137         [0] = {
 138                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 139                 .irq            = VR1000_IRQ_SERIAL + 0,
 140                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 141                 .iotype         = UPIO_MEM,
 142                 .regshift       = 0,
 143                 .uartclk        = VR1000_BAUDBASE,
 144         },
 145         [1] = {
 146                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 147                 .irq            = VR1000_IRQ_SERIAL + 1,
 148                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 149                 .iotype         = UPIO_MEM,
 150                 .regshift       = 0,
 151                 .uartclk        = VR1000_BAUDBASE,
 152         },
 153         [2] = {
 154                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 155                 .irq            = VR1000_IRQ_SERIAL + 2,
 156                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 157                 .iotype         = UPIO_MEM,
 158                 .regshift       = 0,
 159                 .uartclk        = VR1000_BAUDBASE,
 160         },
 161         [3] = {
 162                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 163                 .irq            = VR1000_IRQ_SERIAL + 3,
 164                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 165                 .iotype         = UPIO_MEM,
 166                 .regshift       = 0,
 167                 .uartclk        = VR1000_BAUDBASE,
 168         },
 169         { },
 170 };
 171
 172 static struct platform_device serial_device = {
 173         .name                   = "serial8250",
 174         .id                     = PLAT8250_DEV_PLATFORM,
 175         .dev                    = {
 176                 .platform_data  = serial_platform_data,
 177         },
 178 };
 179
 180 /* DM9000 ethernet devices */
 181
 182 static struct resource vr1000_dm9k0_resource[] = {
 183         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 184         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 185         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
 186                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 187 };
 188
 189 static struct resource vr1000_dm9k1_resource[] = {
 190         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 191         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 192         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
 193                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 194 };
 195
 196 /* for the moment we limit ourselves to 16bit IO until some
 197  * better IO routines can be written and tested
 198 */
 199
 200 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 201         .flags          = DM9000_PLATF_16BITONLY,
 202 };
 203
 204 static struct platform_device vr1000_dm9k0 = {
 205         .name           = "dm9000",
 206         .id             = 0,
 207         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 208         .resource       = vr1000_dm9k0_resource,
 209         .dev            = {
 210                 .platform_data = &vr1000_dm9k_platdata,
 211         }
 212 };
 213
 214 static struct platform_device vr1000_dm9k1 = {
 215         .name           = "dm9000",
 216         .id             = 1,
 217         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 218         .resource       = vr1000_dm9k1_resource,
 219         .dev            = {
 220                 .platform_data = &vr1000_dm9k_platdata,
 221         }
 222 };
 223
 224 /* LEDS */
 225
 226 static struct gpiod_lookup_table vr1000_led1_gpio_table = {
 227         .dev_id = "s3c24xx_led.1",
 228         .table = {
 229                 GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
 230                 { },
 231         },
 232 };
 233
 234 static struct gpiod_lookup_table vr1000_led2_gpio_table = {
 235         .dev_id = "s3c24xx_led.2",
 236         .table = {
 237                 GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
 238                 { },
 239         },
 240 };
 241
 242 static struct gpiod_lookup_table vr1000_led3_gpio_table = {
 243         .dev_id = "s3c24xx_led.3",
 244         .table = {
 245                 GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
 246                 { },
 247         },
 248 };
 249
 250 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 251         .name           = "led1",
 252         .def_trigger    = "",
 253 };
 254
 255 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 256         .name           = "led2",
 257         .def_trigger    = "",
 258 };
 259
 260 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 261         .name           = "led3",
 262         .def_trigger    = "",
 263 };
 264
 265 static struct platform_device vr1000_led1 = {
 266         .name           = "s3c24xx_led",
 267         .id             = 1,
 268         .dev            = {
 269                 .platform_data  = &vr1000_led1_pdata,
 270         },
 271 };
 272
 273 static struct platform_device vr1000_led2 = {
 274         .name           = "s3c24xx_led",
 275         .id             = 2,
 276         .dev            = {
 277                 .platform_data  = &vr1000_led2_pdata,
 278         },
 279 };
 280
 281 static struct platform_device vr1000_led3 = {
 282         .name           = "s3c24xx_led",
 283         .id             = 3,
 284         .dev            = {
 285                 .platform_data  = &vr1000_led3_pdata,
 286         },
 287 };
 288
 289 /* I2C devices. */
 290
 291 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 292         {
 293                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 294         }, {
 295                 I2C_BOARD_INFO("tmp101", 0x48),
 296         }, {
 297                 I2C_BOARD_INFO("m41st87", 0x68),
 298         },
 299 };
 300
 301 /* devices for this board */
 302
 303 static struct platform_device *vr1000_devices[] __initdata = {
 304         &s3c2410_device_dclk,
 305         &s3c_device_ohci,
 306         &s3c_device_lcd,
 307         &s3c_device_wdt,
 308         &s3c_device_i2c0,
 309         &s3c_device_adc,
 310         &serial_device,
 311         &vr1000_dm9k0,
 312         &vr1000_dm9k1,
 313         &vr1000_led1,
 314         &vr1000_led2,
 315         &vr1000_led3,
 316 };
 317
 318 static void vr1000_power_off(void)
 319 {
 320         gpio_direction_output(S3C2410_GPB(9), 1);
 321 }
 322
 323 static void __init vr1000_map_io(void)
 324 {
 325         pm_power_off = vr1000_power_off;
 326
 327         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 328         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 329         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 330 }
 331
 332 static void __init vr1000_init_time(void)
 333 {
 334         s3c2410_init_clocks(12000000);
 335         s3c24xx_timer_init();
 336 }
 337
 338 static void __init vr1000_init(void)
 339 {
 340         s3c_i2c0_set_platdata(NULL);
 341
 342         /* Disable pull-up on LED lines and register GPIO lookups */
 343         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 344         s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
 345         s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
 346         gpiod_add_lookup_table(&vr1000_led1_gpio_table);
 347         gpiod_add_lookup_table(&vr1000_led2_gpio_table);
 348         gpiod_add_lookup_table(&vr1000_led3_gpio_table);
 349
 350         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 351
 352         i2c_register_board_info(0, vr1000_i2c_devs,
 353                                 ARRAY_SIZE(vr1000_i2c_devs));
 354
 355         nor_simtec_init();
 356         simtec_audio_add(NULL, true, NULL);
 357
 358         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 359 }
 360
 361 MACHINE_START(VR1000, "Thorcom-VR1000")
 362         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 363         .atag_offset    = 0x100,
 364         .map_io         = vr1000_map_io,
 365         .init_machine   = vr1000_init,
 366         .init_irq       = s3c2410_init_irq,
 367         .init_time      = vr1000_init_time,
 368 MACHINE_END