arch/arm/mach-pxa/corgi.c

   1 /*
   2  * Support for Sharp SL-C7xx PDAs
   3  * Models: SL-C700 (Corgi), SL-C750 (Shepherd), SL-C760 (Husky)
   4  *
   5  * Copyright (c) 2004-2005 Richard Purdie
   6  *
   7  * Based on Sharp's 2.4 kernel patches/lubbock.c
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License version 2 as
  11  * published by the Free Software Foundation.
  12  *
  13  */
  14
  15 #include <linux/kernel.h>
  16 #include <linux/init.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/major.h>
  19 #include <linux/fs.h>
  20 #include <linux/interrupt.h>
  21 #include <linux/mmc/host.h>
  22 #include <linux/pm.h>
  23 #include <linux/backlight.h>
  24
  25 #include <asm/setup.h>
  26 #include <asm/memory.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/hardware.h>
  29 #include <asm/irq.h>
  30 #include <asm/io.h>
  31 #include <asm/system.h>
  32
  33 #include <asm/mach/arch.h>
  34 #include <asm/mach/map.h>
  35 #include <asm/mach/irq.h>
  36
  37 #include <asm/arch/pxa-regs.h>
  38 #include <asm/arch/irda.h>
  39 #include <asm/arch/mmc.h>
  40 #include <asm/arch/udc.h>
  41 #include <asm/arch/corgi.h>
  42 #include <asm/arch/sharpsl.h>
  43
  44 #include <asm/mach/sharpsl_param.h>
  45 #include <asm/hardware/scoop.h>
  46
  47 #include "generic.h"
  48 #include "devices.h"
  49 #include "sharpsl.h"
  50
  51
  52 /*
  53  * Corgi SCOOP Device
  54  */
  55 static struct resource corgi_scoop_resources[] = {
  56         [0] = {
  57                 .start          = 0x10800000,
  58                 .end            = 0x10800fff,
  59                 .flags          = IORESOURCE_MEM,
  60         },
  61 };
  62
  63 static struct scoop_config corgi_scoop_setup = {
  64         .io_dir         = CORGI_SCOOP_IO_DIR,
  65         .io_out         = CORGI_SCOOP_IO_OUT,
  66 };
  67
  68 struct platform_device corgiscoop_device = {
  69         .name           = "sharp-scoop",
  70         .id             = -1,
  71         .dev            = {
  72                 .platform_data  = &corgi_scoop_setup,
  73         },
  74         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
  75         .resource       = corgi_scoop_resources,
  76 };
  77
  78 static void corgi_pcmcia_init(void)
  79 {
  80         /* Setup default state of GPIO outputs
  81            before we enable them as outputs. */
  82         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  83                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  84                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  85                 GPIO_bit(GPIO53_nPCE_2);
  86
  87         pxa_gpio_mode(GPIO48_nPOE_MD);
  88         pxa_gpio_mode(GPIO49_nPWE_MD);
  89         pxa_gpio_mode(GPIO50_nPIOR_MD);
  90         pxa_gpio_mode(GPIO51_nPIOW_MD);
  91         pxa_gpio_mode(GPIO55_nPREG_MD);
  92         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  93         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  94         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  95         pxa_gpio_mode(GPIO53_nPCE_2_MD);
  96         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
  97 }
  98
  99 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
 100 {
 101         .dev        = &corgiscoop_device.dev,
 102         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
 103         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 104         .cd_irq_str = "PCMCIA0 CD",
 105 },
 106 };
 107
 108 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 109         .devs         = &corgi_pcmcia_scoop[0],
 110         .num_devs     = 1,
 111         .pcmcia_init  = corgi_pcmcia_init,
 112 };
 113
 114 EXPORT_SYMBOL(corgiscoop_device);
 115
 116
 117 /*
 118  * Corgi SSP Device
 119  *
 120  * Set the parent as the scoop device because a lot of SSP devices
 121  * also use scoop functions and this makes the power up/down order
 122  * work correctly.
 123  */
 124 struct platform_device corgissp_device = {
 125         .name           = "corgi-ssp",
 126         .dev            = {
 127                 .parent = &corgiscoop_device.dev,
 128         },
 129         .id             = -1,
 130 };
 131
 132 struct corgissp_machinfo corgi_ssp_machinfo = {
 133         .port           = 1,
 134         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
 135         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
 136         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
 137         .clk_lcdcon     = 76,
 138         .clk_ads7846    = 2,
 139         .clk_max1111    = 8,
 140 };
 141
 142
 143 /*
 144  * Corgi Backlight Device
 145  */
 146 static void corgi_bl_kick_battery(void)
 147 {
 148         void (*kick_batt)(void);
 149
 150         kick_batt = symbol_get(sharpsl_battery_kick);
 151         if (kick_batt) {
 152                 kick_batt();
 153                 symbol_put(sharpsl_battery_kick);
 154         }
 155 }
 156
 157 static struct generic_bl_info corgi_bl_machinfo = {
 158         .name = "corgi-bl",
 159         .max_intensity = 0x2f,
 160         .default_intensity = 0x1f,
 161         .limit_mask = 0x0b,
 162         .set_bl_intensity = corgi_bl_set_intensity,
 163         .kick_battery = corgi_bl_kick_battery,
 164 };
 165
 166 static struct platform_device corgibl_device = {
 167         .name           = "generic-bl",
 168         .dev            = {
 169                 .parent = &corgifb_device.dev,
 170                 .platform_data  = &corgi_bl_machinfo,
 171         },
 172         .id             = -1,
 173 };
 174
 175
 176 /*
 177  * Corgi Keyboard Device
 178  */
 179 static struct platform_device corgikbd_device = {
 180         .name           = "corgi-keyboard",
 181         .id             = -1,
 182 };
 183
 184
 185 /*
 186  * Corgi LEDs
 187  */
 188 static struct platform_device corgiled_device = {
 189         .name           = "corgi-led",
 190         .id             = -1,
 191 };
 192
 193 /*
 194  * Corgi Touch Screen Device
 195  */
 196 static struct resource corgits_resources[] = {
 197         [0] = {
 198                 .start          = CORGI_IRQ_GPIO_TP_INT,
 199                 .end            = CORGI_IRQ_GPIO_TP_INT,
 200                 .flags          = IORESOURCE_IRQ,
 201         },
 202 };
 203
 204 static struct corgits_machinfo  corgi_ts_machinfo = {
 205         .get_hsync_len   = corgi_get_hsync_len,
 206         .put_hsync       = corgi_put_hsync,
 207         .wait_hsync      = corgi_wait_hsync,
 208 };
 209
 210 static struct platform_device corgits_device = {
 211         .name           = "corgi-ts",
 212         .dev            = {
 213                 .parent = &corgissp_device.dev,
 214                 .platform_data  = &corgi_ts_machinfo,
 215         },
 216         .id             = -1,
 217         .num_resources  = ARRAY_SIZE(corgits_resources),
 218         .resource       = corgits_resources,
 219 };
 220
 221
 222 /*
 223  * MMC/SD Device
 224  *
 225  * The card detect interrupt isn't debounced so we delay it by 250ms
 226  * to give the card a chance to fully insert/eject.
 227  */
 228 static struct pxamci_platform_data corgi_mci_platform_data;
 229
 230 static int corgi_mci_init(struct device *dev, irq_handler_t corgi_detect_int, void *data)
 231 {
 232         int err;
 233
 234         /* setup GPIO for PXA25x MMC controller */
 235         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 236         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 237         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 238         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 239
 240         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 241
 242         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 243                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 244                           "MMC card detect", data);
 245         if (err) {
 246                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 247                 return -1;
 248         }
 249
 250         return 0;
 251 }
 252
 253 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 254 {
 255         struct pxamci_platform_data* p_d = dev->platform_data;
 256
 257         if (( 1 << vdd) & p_d->ocr_mask)
 258                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 259         else
 260                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 261 }
 262
 263 static int corgi_mci_get_ro(struct device *dev)
 264 {
 265         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 266 }
 267
 268 static void corgi_mci_exit(struct device *dev, void *data)
 269 {
 270         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 271 }
 272
 273 static struct pxamci_platform_data corgi_mci_platform_data = {
 274         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 275         .init           = corgi_mci_init,
 276         .get_ro         = corgi_mci_get_ro,
 277         .setpower       = corgi_mci_setpower,
 278         .exit           = corgi_mci_exit,
 279 };
 280
 281
 282 /*
 283  * Irda
 284  */
 285 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 286 {
 287         if (mode & IR_OFF)
 288                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 289         else
 290                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 291 }
 292
 293 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 294         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 295         .transceiver_mode = corgi_irda_transceiver_mode,
 296 };
 297
 298
 299 /*
 300  * USB Device Controller
 301  */
 302 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 303         /* no connect GPIO; corgi can't tell connection status */
 304         .gpio_pullup            = CORGI_GPIO_USB_PULLUP,
 305 };
 306
 307
 308 static struct platform_device *devices[] __initdata = {
 309         &corgiscoop_device,
 310         &corgissp_device,
 311         &corgifb_device,
 312         &corgikbd_device,
 313         &corgibl_device,
 314         &corgits_device,
 315         &corgiled_device,
 316 };
 317
 318 static void corgi_poweroff(void)
 319 {
 320         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 321
 322         if (!machine_is_corgi())
 323                 /* Green LED off tells the bootloader to halt */
 324                 reset_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 325         arm_machine_restart('h');
 326 }
 327
 328 static void corgi_restart(char mode)
 329 {
 330         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 331
 332         if (!machine_is_corgi())
 333                 /* Green LED on tells the bootloader to reboot */
 334                 set_scoop_gpio(&corgiscoop_device.dev, CORGI_SCP_LED_GREEN);
 335         arm_machine_restart('h');
 336 }
 337
 338 static void __init corgi_init(void)
 339 {
 340         pm_power_off = corgi_poweroff;
 341         arm_pm_restart = corgi_restart;
 342
 343         /* setup sleep mode values */
 344         PWER  = 0x00000002;
 345         PFER  = 0x00000000;
 346         PRER  = 0x00000002;
 347         PGSR0 = 0x0158C000;
 348         PGSR1 = 0x00FF0080;
 349         PGSR2 = 0x0001C004;
 350         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 351         PCFR |= PCFR_OPDE;
 352
 353         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 354
 355         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 356         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
 357
 358         pxa_set_udc_info(&udc_info);
 359         pxa_set_mci_info(&corgi_mci_platform_data);
 360         pxa_set_ficp_info(&corgi_ficp_platform_data);
 361
 362         platform_scoop_config = &corgi_pcmcia_config;
 363
 364         platform_add_devices(devices, ARRAY_SIZE(devices));
 365 }
 366
 367 static void __init fixup_corgi(struct machine_desc *desc,
 368                 struct tag *tags, char **cmdline, struct meminfo *mi)
 369 {
 370         sharpsl_save_param();
 371         mi->nr_banks=1;
 372         mi->bank[0].start = 0xa0000000;
 373         mi->bank[0].node = 0;
 374         if (machine_is_corgi())
 375                 mi->bank[0].size = (32*1024*1024);
 376         else
 377                 mi->bank[0].size = (64*1024*1024);
 378 }
 379
 380 #ifdef CONFIG_MACH_CORGI
 381 MACHINE_START(CORGI, "SHARP Corgi")
 382         .phys_io        = 0x40000000,
 383         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 384         .fixup          = fixup_corgi,
 385         .map_io         = pxa_map_io,
 386         .init_irq       = pxa25x_init_irq,
 387         .init_machine   = corgi_init,
 388         .timer          = &pxa_timer,
 389 MACHINE_END
 390 #endif
 391
 392 #ifdef CONFIG_MACH_SHEPHERD
 393 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 394         .phys_io        = 0x40000000,
 395         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 396         .fixup          = fixup_corgi,
 397         .map_io         = pxa_map_io,
 398         .init_irq       = pxa25x_init_irq,
 399         .init_machine   = corgi_init,
 400         .timer          = &pxa_timer,
 401 MACHINE_END
 402 #endif
 403
 404 #ifdef CONFIG_MACH_HUSKY
 405 MACHINE_START(HUSKY, "SHARP Husky")
 406         .phys_io        = 0x40000000,
 407         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 408         .fixup          = fixup_corgi,
 409         .map_io         = pxa_map_io,
 410         .init_irq       = pxa25x_init_irq,
 411         .init_machine   = corgi_init,
 412         .timer          = &pxa_timer,
 413 MACHINE_END
 414 #endif
 415