arch/arm/mach-clps711x/board-p720t.c

   1 /*
   2  *  linux/arch/arm/mach-clps711x/p720t.c
   3  *
   4  *  Copyright (C) 2000-2001 Deep Blue Solutions Ltd
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20 #include <linux/kernel.h>
  21 #include <linux/init.h>
  22 #include <linux/types.h>
  23 #include <linux/string.h>
  24 #include <linux/mm.h>
  25 #include <linux/io.h>
  26 #include <linux/gpio.h>
  27 #include <linux/slab.h>
  28 #include <linux/leds.h>
  29 #include <linux/sizes.h>
  30 #include <linux/backlight.h>
  31 #include <linux/basic_mmio_gpio.h>
  32 #include <linux/platform_device.h>
  33 #include <linux/mtd/partitions.h>
  34 #include <linux/mtd/nand-gpio.h>
  35
  36 #include <mach/hardware.h>
  37 #include <asm/pgtable.h>
  38 #include <asm/page.h>
  39 #include <asm/setup.h>
  40 #include <asm/mach-types.h>
  41 #include <asm/mach/arch.h>
  42 #include <asm/mach/map.h>
  43
  44 #include <video/platform_lcd.h>
  45
  46 #include "common.h"
  47 #include "devices.h"
  48
  49 #define P720T_USERLED           CLPS711X_GPIO(3, 0)
  50 #define P720T_NAND_CLE          CLPS711X_GPIO(4, 0)
  51 #define P720T_NAND_ALE          CLPS711X_GPIO(4, 1)
  52 #define P720T_NAND_NCE          CLPS711X_GPIO(4, 2)
  53
  54 #define P720T_NAND_BASE         (CLPS711X_SDRAM1_BASE)
  55
  56 #define P720T_MMGPIO_BASE       (CLPS711X_NR_GPIO)
  57
  58 #define SYSPLD_PHYS_BASE        IOMEM(CS1_PHYS_BASE)
  59
  60 #define PLD_INT                 (SYSPLD_PHYS_BASE + 0x000000)
  61 #define PLD_INT_MMGPIO_BASE     (P720T_MMGPIO_BASE + 0)
  62 #define PLD_INT_PENIRQ          (PLD_INT_MMGPIO_BASE + 5)
  63 #define PLD_INT_UCB_IRQ         (PLD_INT_MMGPIO_BASE + 1)
  64 #define PLD_INT_KBD_ATN         (PLD_INT_MMGPIO_BASE + 0) /* EINT1 */
  65
  66 #define PLD_PWR                 (SYSPLD_PHYS_BASE + 0x000004)
  67 #define PLD_PWR_MMGPIO_BASE     (P720T_MMGPIO_BASE + 8)
  68 #define PLD_PWR_EXT             (PLD_PWR_MMGPIO_BASE + 5)
  69 #define PLD_PWR_MODE            (PLD_PWR_MMGPIO_BASE + 4) /* 1 = PWM, 0 = PFM */
  70 #define PLD_S4_ON               (PLD_PWR_MMGPIO_BASE + 3) /* LCD bias voltage enable */
  71 #define PLD_S3_ON               (PLD_PWR_MMGPIO_BASE + 2) /* LCD backlight enable */
  72 #define PLD_S2_ON               (PLD_PWR_MMGPIO_BASE + 1) /* LCD 3V3 supply enable */
  73 #define PLD_S1_ON               (PLD_PWR_MMGPIO_BASE + 0) /* LCD 3V supply enable */
  74
  75 #define PLD_KBD                 (SYSPLD_PHYS_BASE + 0x000008)
  76 #define PLD_KBD_MMGPIO_BASE     (P720T_MMGPIO_BASE + 16)
  77 #define PLD_KBD_WAKE            (PLD_KBD_MMGPIO_BASE + 1)
  78 #define PLD_KBD_EN              (PLD_KBD_MMGPIO_BASE + 0)
  79
  80 #define PLD_SPI                 (SYSPLD_PHYS_BASE + 0x00000c)
  81 #define PLD_SPI_MMGPIO_BASE     (P720T_MMGPIO_BASE + 24)
  82 #define PLD_SPI_EN              (PLD_SPI_MMGPIO_BASE + 0)
  83
  84 #define PLD_IO                  (SYSPLD_PHYS_BASE + 0x000010)
  85 #define PLD_IO_MMGPIO_BASE      (P720T_MMGPIO_BASE + 32)
  86 #define PLD_IO_BOOTSEL          (PLD_IO_MMGPIO_BASE + 6) /* Boot sel switch */
  87 #define PLD_IO_USER             (PLD_IO_MMGPIO_BASE + 5) /* User defined switch */
  88 #define PLD_IO_LED3             (PLD_IO_MMGPIO_BASE + 4)
  89 #define PLD_IO_LED2             (PLD_IO_MMGPIO_BASE + 3)
  90 #define PLD_IO_LED1             (PLD_IO_MMGPIO_BASE + 2)
  91 #define PLD_IO_LED0             (PLD_IO_MMGPIO_BASE + 1)
  92 #define PLD_IO_LEDEN            (PLD_IO_MMGPIO_BASE + 0)
  93
  94 #define PLD_IRDA                (SYSPLD_PHYS_BASE + 0x000014)
  95 #define PLD_IRDA_MMGPIO_BASE    (P720T_MMGPIO_BASE + 40)
  96 #define PLD_IRDA_EN             (PLD_IRDA_MMGPIO_BASE + 0)
  97
  98 #define PLD_COM2                (SYSPLD_PHYS_BASE + 0x000018)
  99 #define PLD_COM2_MMGPIO_BASE    (P720T_MMGPIO_BASE + 48)
 100 #define PLD_COM2_EN             (PLD_COM2_MMGPIO_BASE + 0)
 101
 102 #define PLD_COM1                (SYSPLD_PHYS_BASE + 0x00001c)
 103 #define PLD_COM1_MMGPIO_BASE    (P720T_MMGPIO_BASE + 56)
 104 #define PLD_COM1_EN             (PLD_COM1_MMGPIO_BASE + 0)
 105
 106 #define PLD_AUD                 (SYSPLD_PHYS_BASE + 0x000020)
 107 #define PLD_AUD_MMGPIO_BASE     (P720T_MMGPIO_BASE + 64)
 108 #define PLD_AUD_DIV1            (PLD_AUD_MMGPIO_BASE + 6)
 109 #define PLD_AUD_DIV0            (PLD_AUD_MMGPIO_BASE + 5)
 110 #define PLD_AUD_CLK_SEL1        (PLD_AUD_MMGPIO_BASE + 4)
 111 #define PLD_AUD_CLK_SEL0        (PLD_AUD_MMGPIO_BASE + 3)
 112 #define PLD_AUD_MIC_PWR         (PLD_AUD_MMGPIO_BASE + 2)
 113 #define PLD_AUD_MIC_GAIN        (PLD_AUD_MMGPIO_BASE + 1)
 114 #define PLD_AUD_CODEC_EN        (PLD_AUD_MMGPIO_BASE + 0)
 115
 116 #define PLD_CF                  (SYSPLD_PHYS_BASE + 0x000024)
 117 #define PLD_CF_MMGPIO_BASE      (P720T_MMGPIO_BASE + 72)
 118 #define PLD_CF2_SLEEP           (PLD_CF_MMGPIO_BASE + 5)
 119 #define PLD_CF1_SLEEP           (PLD_CF_MMGPIO_BASE + 4)
 120 #define PLD_CF2_nPDREQ          (PLD_CF_MMGPIO_BASE + 3)
 121 #define PLD_CF1_nPDREQ          (PLD_CF_MMGPIO_BASE + 2)
 122 #define PLD_CF2_nIRQ            (PLD_CF_MMGPIO_BASE + 1)
 123 #define PLD_CF1_nIRQ            (PLD_CF_MMGPIO_BASE + 0)
 124
 125 #define PLD_SDC                 (SYSPLD_PHYS_BASE + 0x000028)
 126 #define PLD_SDC_MMGPIO_BASE     (P720T_MMGPIO_BASE + 80)
 127 #define PLD_SDC_INT_EN          (PLD_SDC_MMGPIO_BASE + 2)
 128 #define PLD_SDC_WP              (PLD_SDC_MMGPIO_BASE + 1)
 129 #define PLD_SDC_CD              (PLD_SDC_MMGPIO_BASE + 0)
 130
 131 #define PLD_CODEC               (SYSPLD_PHYS_BASE + 0x400000)
 132 #define PLD_CODEC_MMGPIO_BASE   (P720T_MMGPIO_BASE + 88)
 133 #define PLD_CODEC_IRQ3          (PLD_CODEC_MMGPIO_BASE + 4)
 134 #define PLD_CODEC_IRQ2          (PLD_CODEC_MMGPIO_BASE + 3)
 135 #define PLD_CODEC_IRQ1          (PLD_CODEC_MMGPIO_BASE + 2)
 136 #define PLD_CODEC_EN            (PLD_CODEC_MMGPIO_BASE + 0)
 137
 138 #define PLD_BRITE               (SYSPLD_PHYS_BASE + 0x400004)
 139 #define PLD_BRITE_MMGPIO_BASE   (P720T_MMGPIO_BASE + 96)
 140 #define PLD_BRITE_UP            (PLD_BRITE_MMGPIO_BASE + 1)
 141 #define PLD_BRITE_DN            (PLD_BRITE_MMGPIO_BASE + 0)
 142
 143 #define PLD_LCDEN               (SYSPLD_PHYS_BASE + 0x400008)
 144 #define PLD_LCDEN_MMGPIO_BASE   (P720T_MMGPIO_BASE + 104)
 145 #define PLD_LCDEN_EN            (PLD_LCDEN_MMGPIO_BASE + 0)
 146
 147 #define PLD_TCH                 (SYSPLD_PHYS_BASE + 0x400010)
 148 #define PLD_TCH_MMGPIO_BASE     (P720T_MMGPIO_BASE + 112)
 149 #define PLD_TCH_PENIRQ          (PLD_TCH_MMGPIO_BASE + 1)
 150 #define PLD_TCH_EN              (PLD_TCH_MMGPIO_BASE + 0)
 151
 152 #define PLD_GPIO                (SYSPLD_PHYS_BASE + 0x400014)
 153 #define PLD_GPIO_MMGPIO_BASE    (P720T_MMGPIO_BASE + 120)
 154 #define PLD_GPIO2               (PLD_GPIO_MMGPIO_BASE + 2)
 155 #define PLD_GPIO1               (PLD_GPIO_MMGPIO_BASE + 1)
 156 #define PLD_GPIO0               (PLD_GPIO_MMGPIO_BASE + 0)
 157
 158 static struct gpio p720t_gpios[] __initconst = {
 159         { PLD_S1_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S1_ON" },
 160         { PLD_S2_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S2_ON" },
 161         { PLD_S3_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S3_ON" },
 162         { PLD_S4_ON,    GPIOF_OUT_INIT_LOW,     "PLD_S4_ON" },
 163         { PLD_KBD_EN,   GPIOF_OUT_INIT_LOW,     "PLD_KBD_EN" },
 164         { PLD_SPI_EN,   GPIOF_OUT_INIT_LOW,     "PLD_SPI_EN" },
 165         { PLD_IO_USER,  GPIOF_OUT_INIT_LOW,     "PLD_IO_USER" },
 166         { PLD_IO_LED0,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED0" },
 167         { PLD_IO_LED1,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED1" },
 168         { PLD_IO_LED2,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED2" },
 169         { PLD_IO_LED3,  GPIOF_OUT_INIT_LOW,     "PLD_IO_LED3" },
 170         { PLD_IO_LEDEN, GPIOF_OUT_INIT_LOW,     "PLD_IO_LEDEN" },
 171         { PLD_IRDA_EN,  GPIOF_OUT_INIT_LOW,     "PLD_IRDA_EN" },
 172         { PLD_COM1_EN,  GPIOF_OUT_INIT_HIGH,    "PLD_COM1_EN" },
 173         { PLD_COM2_EN,  GPIOF_OUT_INIT_HIGH,    "PLD_COM2_EN" },
 174         { PLD_CODEC_EN, GPIOF_OUT_INIT_LOW,     "PLD_CODEC_EN" },
 175         { PLD_LCDEN_EN, GPIOF_OUT_INIT_LOW,     "PLD_LCDEN_EN" },
 176         { PLD_TCH_EN,   GPIOF_OUT_INIT_LOW,     "PLD_TCH_EN" },
 177         { P720T_USERLED,GPIOF_OUT_INIT_LOW,     "USER_LED" },
 178 };
 179
 180 static struct resource p720t_mmgpio_resource[] __initdata = {
 181         DEFINE_RES_MEM_NAMED(0, 4, "dat"),
 182 };
 183
 184 static struct bgpio_pdata p720t_mmgpio_pdata = {
 185         .ngpio  = 8,
 186 };
 187
 188 static struct platform_device p720t_mmgpio __initdata = {
 189         .name           = "basic-mmio-gpio",
 190         .id             = -1,
 191         .resource       = p720t_mmgpio_resource,
 192         .num_resources  = ARRAY_SIZE(p720t_mmgpio_resource),
 193         .dev            = {
 194                 .platform_data  = &p720t_mmgpio_pdata,
 195         },
 196 };
 197
 198 static void __init p720t_mmgpio_init(void __iomem *addrbase, int gpiobase)
 199 {
 200         p720t_mmgpio_resource[0].start = (unsigned long)addrbase;
 201         p720t_mmgpio_pdata.base = gpiobase;
 202
 203         platform_device_register(&p720t_mmgpio);
 204 }
 205
 206 static struct {
 207         void __iomem    *addrbase;
 208         int             gpiobase;
 209 } mmgpios[] __initconst = {
 210         { PLD_INT,      PLD_INT_MMGPIO_BASE },
 211         { PLD_PWR,      PLD_PWR_MMGPIO_BASE },
 212         { PLD_KBD,      PLD_KBD_MMGPIO_BASE },
 213         { PLD_SPI,      PLD_SPI_MMGPIO_BASE },
 214         { PLD_IO,       PLD_IO_MMGPIO_BASE },
 215         { PLD_IRDA,     PLD_IRDA_MMGPIO_BASE },
 216         { PLD_COM2,     PLD_COM2_MMGPIO_BASE },
 217         { PLD_COM1,     PLD_COM1_MMGPIO_BASE },
 218         { PLD_AUD,      PLD_AUD_MMGPIO_BASE },
 219         { PLD_CF,       PLD_CF_MMGPIO_BASE },
 220         { PLD_SDC,      PLD_SDC_MMGPIO_BASE },
 221         { PLD_CODEC,    PLD_CODEC_MMGPIO_BASE },
 222         { PLD_BRITE,    PLD_BRITE_MMGPIO_BASE },
 223         { PLD_LCDEN,    PLD_LCDEN_MMGPIO_BASE },
 224         { PLD_TCH,      PLD_TCH_MMGPIO_BASE },
 225         { PLD_GPIO,     PLD_GPIO_MMGPIO_BASE },
 226 };
 227
 228 static struct resource p720t_nand_resource[] __initdata = {
 229         DEFINE_RES_MEM(P720T_NAND_BASE, SZ_4),
 230 };
 231
 232 static struct mtd_partition p720t_nand_parts[] __initdata = {
 233         {
 234                 .name   = "Flash partition 1",
 235                 .offset = 0,
 236                 .size   = SZ_2M,
 237         },
 238         {
 239                 .name   = "Flash partition 2",
 240                 .offset = MTDPART_OFS_APPEND,
 241                 .size   = MTDPART_SIZ_FULL,
 242         },
 243 };
 244
 245 static struct gpio_nand_platdata p720t_nand_pdata __initdata = {
 246         .gpio_rdy       = -1,
 247         .gpio_nce       = P720T_NAND_NCE,
 248         .gpio_ale       = P720T_NAND_ALE,
 249         .gpio_cle       = P720T_NAND_CLE,
 250         .gpio_nwp       = -1,
 251         .chip_delay     = 15,
 252         .parts          = p720t_nand_parts,
 253         .num_parts      = ARRAY_SIZE(p720t_nand_parts),
 254 };
 255
 256 static struct platform_device p720t_nand_pdev __initdata = {
 257         .name           = "gpio-nand",
 258         .id             = -1,
 259         .resource       = p720t_nand_resource,
 260         .num_resources  = ARRAY_SIZE(p720t_nand_resource),
 261         .dev            = {
 262                 .platform_data = &p720t_nand_pdata,
 263         },
 264 };
 265
 266 static void p720t_lcd_power_set(struct plat_lcd_data *pd, unsigned int power)
 267 {
 268         if (power) {
 269                 gpio_set_value(PLD_LCDEN_EN, 1);
 270                 gpio_set_value(PLD_S1_ON, 1);
 271                 gpio_set_value(PLD_S2_ON, 1);
 272                 gpio_set_value(PLD_S4_ON, 1);
 273         } else {
 274                 gpio_set_value(PLD_S1_ON, 0);
 275                 gpio_set_value(PLD_S2_ON, 0);
 276                 gpio_set_value(PLD_S4_ON, 0);
 277                 gpio_set_value(PLD_LCDEN_EN, 0);
 278         }
 279 }
 280
 281 static struct plat_lcd_data p720t_lcd_power_pdata = {
 282         .set_power      = p720t_lcd_power_set,
 283 };
 284
 285 static void p720t_lcd_backlight_set_intensity(int intensity)
 286 {
 287         gpio_set_value(PLD_S3_ON, intensity);
 288 }
 289
 290 static struct generic_bl_info p720t_lcd_backlight_pdata = {
 291         .name                   = "lcd-backlight.0",
 292         .default_intensity      = 0x01,
 293         .max_intensity          = 0x01,
 294         .set_bl_intensity       = p720t_lcd_backlight_set_intensity,
 295 };
 296
 297 static void __init
 298 fixup_p720t(struct tag *tag, char **cmdline, struct meminfo *mi)
 299 {
 300         /*
 301          * Our bootloader doesn't setup any tags (yet).
 302          */
 303         if (tag->hdr.tag != ATAG_CORE) {
 304                 tag->hdr.tag = ATAG_CORE;
 305                 tag->hdr.size = tag_size(tag_core);
 306                 tag->u.core.flags = 0;
 307                 tag->u.core.pagesize = PAGE_SIZE;
 308                 tag->u.core.rootdev = 0x0100;
 309
 310                 tag = tag_next(tag);
 311                 tag->hdr.tag = ATAG_MEM;
 312                 tag->hdr.size = tag_size(tag_mem32);
 313                 tag->u.mem.size = 4096;
 314                 tag->u.mem.start = PHYS_OFFSET;
 315
 316                 tag = tag_next(tag);
 317                 tag->hdr.tag = ATAG_NONE;
 318                 tag->hdr.size = 0;
 319         }
 320 }
 321
 322 static struct gpio_led p720t_gpio_leds[] = {
 323         {
 324                 .name                   = "User LED",
 325                 .default_trigger        = "heartbeat",
 326                 .gpio                   = P720T_USERLED,
 327         },
 328 };
 329
 330 static struct gpio_led_platform_data p720t_gpio_led_pdata __initdata = {
 331         .leds           = p720t_gpio_leds,
 332         .num_leds       = ARRAY_SIZE(p720t_gpio_leds),
 333 };
 334
 335 static void __init p720t_init(void)
 336 {
 337         int i;
 338
 339         clps711x_devices_init();
 340
 341         for (i = 0; i < ARRAY_SIZE(mmgpios); i++)
 342                 p720t_mmgpio_init(mmgpios[i].addrbase, mmgpios[i].gpiobase);
 343
 344         platform_device_register(&p720t_nand_pdev);
 345 }
 346
 347 static void __init p720t_init_late(void)
 348 {
 349         WARN_ON(gpio_request_array(p720t_gpios, ARRAY_SIZE(p720t_gpios)));
 350
 351         platform_device_register_data(&platform_bus, "platform-lcd", 0,
 352                                       &p720t_lcd_power_pdata,
 353                                       sizeof(p720t_lcd_power_pdata));
 354         platform_device_register_data(&platform_bus, "generic-bl", 0,
 355                                       &p720t_lcd_backlight_pdata,
 356                                       sizeof(p720t_lcd_backlight_pdata));
 357         platform_device_register_simple("video-clps711x", 0, NULL, 0);
 358         platform_device_register_data(&platform_bus, "leds-gpio", 0,
 359                                       &p720t_gpio_led_pdata,
 360                                       sizeof(p720t_gpio_led_pdata));
 361 }
 362
 363 MACHINE_START(P720T, "ARM-Prospector720T")
 364         /* Maintainer: ARM Ltd/Deep Blue Solutions Ltd */
 365         .atag_offset    = 0x100,
 366         .nr_irqs        = CLPS711X_NR_IRQS,
 367         .fixup          = fixup_p720t,
 368         .map_io         = clps711x_map_io,
 369         .init_early     = clps711x_init_early,
 370         .init_irq       = clps711x_init_irq,
 371         .init_time      = clps711x_timer_init,
 372         .init_machine   = p720t_init,
 373         .init_late      = p720t_init_late,
 374         .handle_irq     = clps711x_handle_irq,
 375         .restart        = clps711x_restart,
 376 MACHINE_END