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