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
  72   /*  CPLD control registers, and external interrupt controls */
  73   {
  74           .virtual      = (u32)VR1000_VA_CTRL1,
  75           .pfn          = __phys_to_pfn(VR1000_PA_CTRL1),
  76           .length       = SZ_1M,
  77           .type         = MT_DEVICE,
  78   }, {
  79           .virtual      = (u32)VR1000_VA_CTRL2,
  80           .pfn          = __phys_to_pfn(VR1000_PA_CTRL2),
  81           .length       = SZ_1M,
  82           .type         = MT_DEVICE,
  83   }, {
  84           .virtual      = (u32)VR1000_VA_CTRL3,
  85           .pfn          = __phys_to_pfn(VR1000_PA_CTRL3),
  86           .length       = SZ_1M,
  87           .type         = MT_DEVICE,
  88   }, {
  89           .virtual      = (u32)VR1000_VA_CTRL4,
  90           .pfn          = __phys_to_pfn(VR1000_PA_CTRL4),
  91           .length       = SZ_1M,
  92           .type         = MT_DEVICE,
  93   },
  94 };
  95
  96 #define UCON S3C2410_UCON_DEFAULT | S3C2410_UCON_UCLK
  97 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
  98 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
  99
 100 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 101         [0] = {
 102                 .hwport      = 0,
 103                 .flags       = 0,
 104                 .ucon        = UCON,
 105                 .ulcon       = ULCON,
 106                 .ufcon       = UFCON,
 107         },
 108         [1] = {
 109                 .hwport      = 1,
 110                 .flags       = 0,
 111                 .ucon        = UCON,
 112                 .ulcon       = ULCON,
 113                 .ufcon       = UFCON,
 114         },
 115         /* port 2 is not actually used */
 116         [2] = {
 117                 .hwport      = 2,
 118                 .flags       = 0,
 119                 .ucon        = UCON,
 120                 .ulcon       = ULCON,
 121                 .ufcon       = UFCON,
 122         }
 123 };
 124
 125 /* definitions for the vr1000 extra 16550 serial ports */
 126
 127 #define VR1000_BAUDBASE (3692307)
 128
 129 #define VR1000_SERIAL_MAPBASE(x) (VR1000_PA_SERIAL + 0x80 + ((x) << 5))
 130
 131 static struct plat_serial8250_port serial_platform_data[] = {
 132         [0] = {
 133                 .mapbase        = VR1000_SERIAL_MAPBASE(0),
 134                 .irq            = VR1000_IRQ_SERIAL + 0,
 135                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 136                 .iotype         = UPIO_MEM,
 137                 .regshift       = 0,
 138                 .uartclk        = VR1000_BAUDBASE,
 139         },
 140         [1] = {
 141                 .mapbase        = VR1000_SERIAL_MAPBASE(1),
 142                 .irq            = VR1000_IRQ_SERIAL + 1,
 143                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 144                 .iotype         = UPIO_MEM,
 145                 .regshift       = 0,
 146                 .uartclk        = VR1000_BAUDBASE,
 147         },
 148         [2] = {
 149                 .mapbase        = VR1000_SERIAL_MAPBASE(2),
 150                 .irq            = VR1000_IRQ_SERIAL + 2,
 151                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 152                 .iotype         = UPIO_MEM,
 153                 .regshift       = 0,
 154                 .uartclk        = VR1000_BAUDBASE,
 155         },
 156         [3] = {
 157                 .mapbase        = VR1000_SERIAL_MAPBASE(3),
 158                 .irq            = VR1000_IRQ_SERIAL + 3,
 159                 .flags          = UPF_BOOT_AUTOCONF | UPF_IOREMAP,
 160                 .iotype         = UPIO_MEM,
 161                 .regshift       = 0,
 162                 .uartclk        = VR1000_BAUDBASE,
 163         },
 164         { },
 165 };
 166
 167 static struct platform_device serial_device = {
 168         .name                   = "serial8250",
 169         .id                     = PLAT8250_DEV_PLATFORM,
 170         .dev                    = {
 171                 .platform_data  = serial_platform_data,
 172         },
 173 };
 174
 175 /* DM9000 ethernet devices */
 176
 177 static struct resource vr1000_dm9k0_resource[] = {
 178         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000, 4),
 179         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x40, 0x40),
 180         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000A, 1, NULL, IORESOURCE_IRQ \
 181                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 182 };
 183
 184 static struct resource vr1000_dm9k1_resource[] = {
 185         [0] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0x80, 4),
 186         [1] = DEFINE_RES_MEM(S3C2410_CS5 + VR1000_PA_DM9000 + 0xC0, 0x40),
 187         [2] = DEFINE_RES_NAMED(VR1000_IRQ_DM9000N, 1, NULL, IORESOURCE_IRQ \
 188                                                 | IORESOURCE_IRQ_HIGHLEVEL),
 189 };
 190
 191 /* for the moment we limit ourselves to 16bit IO until some
 192  * better IO routines can be written and tested
 193 */
 194
 195 static struct dm9000_plat_data vr1000_dm9k_platdata = {
 196         .flags          = DM9000_PLATF_16BITONLY,
 197 };
 198
 199 static struct platform_device vr1000_dm9k0 = {
 200         .name           = "dm9000",
 201         .id             = 0,
 202         .num_resources  = ARRAY_SIZE(vr1000_dm9k0_resource),
 203         .resource       = vr1000_dm9k0_resource,
 204         .dev            = {
 205                 .platform_data = &vr1000_dm9k_platdata,
 206         }
 207 };
 208
 209 static struct platform_device vr1000_dm9k1 = {
 210         .name           = "dm9000",
 211         .id             = 1,
 212         .num_resources  = ARRAY_SIZE(vr1000_dm9k1_resource),
 213         .resource       = vr1000_dm9k1_resource,
 214         .dev            = {
 215                 .platform_data = &vr1000_dm9k_platdata,
 216         }
 217 };
 218
 219 /* LEDS */
 220
 221 static struct gpiod_lookup_table vr1000_led1_gpio_table = {
 222         .dev_id = "s3c24xx_led.1",
 223         .table = {
 224                 GPIO_LOOKUP("GPB", 0, NULL, GPIO_ACTIVE_HIGH),
 225                 { },
 226         },
 227 };
 228
 229 static struct gpiod_lookup_table vr1000_led2_gpio_table = {
 230         .dev_id = "s3c24xx_led.2",
 231         .table = {
 232                 GPIO_LOOKUP("GPB", 1, NULL, GPIO_ACTIVE_HIGH),
 233                 { },
 234         },
 235 };
 236
 237 static struct gpiod_lookup_table vr1000_led3_gpio_table = {
 238         .dev_id = "s3c24xx_led.3",
 239         .table = {
 240                 GPIO_LOOKUP("GPB", 2, NULL, GPIO_ACTIVE_HIGH),
 241                 { },
 242         },
 243 };
 244
 245 static struct s3c24xx_led_platdata vr1000_led1_pdata = {
 246         .name           = "led1",
 247         .def_trigger    = "",
 248 };
 249
 250 static struct s3c24xx_led_platdata vr1000_led2_pdata = {
 251         .name           = "led2",
 252         .def_trigger    = "",
 253 };
 254
 255 static struct s3c24xx_led_platdata vr1000_led3_pdata = {
 256         .name           = "led3",
 257         .def_trigger    = "",
 258 };
 259
 260 static struct platform_device vr1000_led1 = {
 261         .name           = "s3c24xx_led",
 262         .id             = 1,
 263         .dev            = {
 264                 .platform_data  = &vr1000_led1_pdata,
 265         },
 266 };
 267
 268 static struct platform_device vr1000_led2 = {
 269         .name           = "s3c24xx_led",
 270         .id             = 2,
 271         .dev            = {
 272                 .platform_data  = &vr1000_led2_pdata,
 273         },
 274 };
 275
 276 static struct platform_device vr1000_led3 = {
 277         .name           = "s3c24xx_led",
 278         .id             = 3,
 279         .dev            = {
 280                 .platform_data  = &vr1000_led3_pdata,
 281         },
 282 };
 283
 284 /* I2C devices. */
 285
 286 static struct i2c_board_info vr1000_i2c_devs[] __initdata = {
 287         {
 288                 I2C_BOARD_INFO("tlv320aic23", 0x1a),
 289         }, {
 290                 I2C_BOARD_INFO("tmp101", 0x48),
 291         }, {
 292                 I2C_BOARD_INFO("m41st87", 0x68),
 293         },
 294 };
 295
 296 /* devices for this board */
 297
 298 static struct platform_device *vr1000_devices[] __initdata = {
 299         &s3c2410_device_dclk,
 300         &s3c_device_ohci,
 301         &s3c_device_lcd,
 302         &s3c_device_wdt,
 303         &s3c_device_i2c0,
 304         &s3c_device_adc,
 305         &serial_device,
 306         &vr1000_dm9k0,
 307         &vr1000_dm9k1,
 308         &vr1000_led1,
 309         &vr1000_led2,
 310         &vr1000_led3,
 311 };
 312
 313 static void vr1000_power_off(void)
 314 {
 315         gpio_direction_output(S3C2410_GPB(9), 1);
 316 }
 317
 318 static void __init vr1000_map_io(void)
 319 {
 320         pm_power_off = vr1000_power_off;
 321
 322         s3c24xx_init_io(vr1000_iodesc, ARRAY_SIZE(vr1000_iodesc));
 323         s3c24xx_init_uarts(vr1000_uartcfgs, ARRAY_SIZE(vr1000_uartcfgs));
 324         s3c24xx_set_timer_source(S3C24XX_PWM3, S3C24XX_PWM4);
 325 }
 326
 327 static void __init vr1000_init_time(void)
 328 {
 329         s3c2410_init_clocks(12000000);
 330         s3c24xx_timer_init();
 331 }
 332
 333 static void __init vr1000_init(void)
 334 {
 335         s3c_i2c0_set_platdata(NULL);
 336
 337         /* Disable pull-up on LED lines and register GPIO lookups */
 338         s3c_gpio_setpull(S3C2410_GPB(0), S3C_GPIO_PULL_NONE);
 339         s3c_gpio_setpull(S3C2410_GPB(1), S3C_GPIO_PULL_NONE);
 340         s3c_gpio_setpull(S3C2410_GPB(2), S3C_GPIO_PULL_NONE);
 341         gpiod_add_lookup_table(&vr1000_led1_gpio_table);
 342         gpiod_add_lookup_table(&vr1000_led2_gpio_table);
 343         gpiod_add_lookup_table(&vr1000_led3_gpio_table);
 344
 345         platform_add_devices(vr1000_devices, ARRAY_SIZE(vr1000_devices));
 346
 347         i2c_register_board_info(0, vr1000_i2c_devs,
 348                                 ARRAY_SIZE(vr1000_i2c_devs));
 349
 350         nor_simtec_init();
 351         simtec_audio_add(NULL, true, NULL);
 352
 353         WARN_ON(gpio_request(S3C2410_GPB(9), "power off"));
 354 }
 355
 356 MACHINE_START(VR1000, "Thorcom-VR1000")
 357         /* Maintainer: Ben Dooks <ben@simtec.co.uk> */
 358         .atag_offset    = 0x100,
 359         .nr_irqs        = NR_IRQS_S3C2410,
 360         .map_io         = vr1000_map_io,
 361         .init_machine   = vr1000_init,
 362         .init_irq       = s3c2410_init_irq,
 363         .init_time      = vr1000_init_time,
 364 MACHINE_END