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
  23 #include <asm/setup.h>
  24 #include <asm/memory.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/hardware.h>
  27 #include <asm/irq.h>
  28 #include <asm/io.h>
  29
  30 #include <asm/mach/arch.h>
  31 #include <asm/mach/map.h>
  32 #include <asm/mach/irq.h>
  33
  34 #include <asm/arch/pxa-regs.h>
  35 #include <asm/arch/irda.h>
  36 #include <asm/arch/mmc.h>
  37 #include <asm/arch/udc.h>
  38 #include <asm/arch/corgi.h>
  39 #include <asm/arch/sharpsl.h>
  40
  41 #include <asm/mach/sharpsl_param.h>
  42 #include <asm/hardware/scoop.h>
  43
  44 #include "generic.h"
  45 #include "sharpsl.h"
  46
  47
  48 /*
  49  * Corgi SCOOP Device
  50  */
  51 static struct resource corgi_scoop_resources[] = {
  52         [0] = {
  53                 .start          = 0x10800000,
  54                 .end            = 0x10800fff,
  55                 .flags          = IORESOURCE_MEM,
  56         },
  57 };
  58
  59 static struct scoop_config corgi_scoop_setup = {
  60         .io_dir         = CORGI_SCOOP_IO_DIR,
  61         .io_out         = CORGI_SCOOP_IO_OUT,
  62 };
  63
  64 struct platform_device corgiscoop_device = {
  65         .name           = "sharp-scoop",
  66         .id             = -1,
  67         .dev            = {
  68                 .platform_data  = &corgi_scoop_setup,
  69         },
  70         .num_resources  = ARRAY_SIZE(corgi_scoop_resources),
  71         .resource       = corgi_scoop_resources,
  72 };
  73
  74 static void corgi_pcmcia_init(void)
  75 {
  76         /* Setup default state of GPIO outputs
  77            before we enable them as outputs. */
  78         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  79                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  80                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  81                 GPIO_bit(GPIO53_nPCE_2);
  82
  83         pxa_gpio_mode(GPIO48_nPOE_MD);
  84         pxa_gpio_mode(GPIO49_nPWE_MD);
  85         pxa_gpio_mode(GPIO50_nPIOR_MD);
  86         pxa_gpio_mode(GPIO51_nPIOW_MD);
  87         pxa_gpio_mode(GPIO55_nPREG_MD);
  88         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  89         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  90         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  91         pxa_gpio_mode(GPIO53_nPCE_2_MD);
  92         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
  93 }
  94
  95 static struct scoop_pcmcia_dev corgi_pcmcia_scoop[] = {
  96 {
  97         .dev        = &corgiscoop_device.dev,
  98         .irq        = CORGI_IRQ_GPIO_CF_IRQ,
  99         .cd_irq     = CORGI_IRQ_GPIO_CF_CD,
 100         .cd_irq_str = "PCMCIA0 CD",
 101 },
 102 };
 103
 104 static struct scoop_pcmcia_config corgi_pcmcia_config = {
 105         .devs         = &corgi_pcmcia_scoop[0],
 106         .num_devs     = 1,
 107         .pcmcia_init  = corgi_pcmcia_init,
 108 };
 109
 110 EXPORT_SYMBOL(corgiscoop_device);
 111
 112
 113 /*
 114  * Corgi SSP Device
 115  *
 116  * Set the parent as the scoop device because a lot of SSP devices
 117  * also use scoop functions and this makes the power up/down order
 118  * work correctly.
 119  */
 120 struct platform_device corgissp_device = {
 121         .name           = "corgi-ssp",
 122         .dev            = {
 123                 .parent = &corgiscoop_device.dev,
 124         },
 125         .id             = -1,
 126 };
 127
 128 struct corgissp_machinfo corgi_ssp_machinfo = {
 129         .port           = 1,
 130         .cs_lcdcon      = CORGI_GPIO_LCDCON_CS,
 131         .cs_ads7846     = CORGI_GPIO_ADS7846_CS,
 132         .cs_max1111     = CORGI_GPIO_MAX1111_CS,
 133         .clk_lcdcon     = 76,
 134         .clk_ads7846    = 2,
 135         .clk_max1111    = 8,
 136 };
 137
 138
 139 /*
 140  * Corgi Backlight Device
 141  */
 142 static struct corgibl_machinfo corgi_bl_machinfo = {
 143         .max_intensity = 0x2f,
 144         .default_intensity = 0x1f,
 145         .limit_mask = 0x0b,
 146         .set_bl_intensity = corgi_bl_set_intensity,
 147 };
 148
 149 static struct platform_device corgibl_device = {
 150         .name           = "corgi-bl",
 151         .dev            = {
 152                 .parent = &corgifb_device.dev,
 153                 .platform_data  = &corgi_bl_machinfo,
 154         },
 155         .id             = -1,
 156 };
 157
 158
 159 /*
 160  * Corgi Keyboard Device
 161  */
 162 static struct platform_device corgikbd_device = {
 163         .name           = "corgi-keyboard",
 164         .id             = -1,
 165 };
 166
 167
 168 /*
 169  * Corgi LEDs
 170  */
 171 static struct platform_device corgiled_device = {
 172         .name           = "corgi-led",
 173         .id             = -1,
 174 };
 175
 176 /*
 177  * Corgi Touch Screen Device
 178  */
 179 static struct resource corgits_resources[] = {
 180         [0] = {
 181                 .start          = CORGI_IRQ_GPIO_TP_INT,
 182                 .end            = CORGI_IRQ_GPIO_TP_INT,
 183                 .flags          = IORESOURCE_IRQ,
 184         },
 185 };
 186
 187 static struct corgits_machinfo  corgi_ts_machinfo = {
 188         .get_hsync_len   = corgi_get_hsync_len,
 189         .put_hsync       = corgi_put_hsync,
 190         .wait_hsync      = corgi_wait_hsync,
 191 };
 192
 193 static struct platform_device corgits_device = {
 194         .name           = "corgi-ts",
 195         .dev            = {
 196                 .parent = &corgissp_device.dev,
 197                 .platform_data  = &corgi_ts_machinfo,
 198         },
 199         .id             = -1,
 200         .num_resources  = ARRAY_SIZE(corgits_resources),
 201         .resource       = corgits_resources,
 202 };
 203
 204
 205 /*
 206  * MMC/SD Device
 207  *
 208  * The card detect interrupt isn't debounced so we delay it by 250ms
 209  * to give the card a chance to fully insert/eject.
 210  */
 211 static struct pxamci_platform_data corgi_mci_platform_data;
 212
 213 static int corgi_mci_init(struct device *dev, irqreturn_t (*corgi_detect_int)(int, void *, struct pt_regs *), void *data)
 214 {
 215         int err;
 216
 217         /* setup GPIO for PXA25x MMC controller */
 218         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 219         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 220         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 221         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 222
 223         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 224
 225         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 226                           SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
 227                           "MMC card detect", data);
 228         if (err) {
 229                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 230                 return -1;
 231         }
 232
 233         return 0;
 234 }
 235
 236 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 237 {
 238         struct pxamci_platform_data* p_d = dev->platform_data;
 239
 240         if (( 1 << vdd) & p_d->ocr_mask)
 241                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 242         else
 243                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 244 }
 245
 246 static int corgi_mci_get_ro(struct device *dev)
 247 {
 248         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 249 }
 250
 251 static void corgi_mci_exit(struct device *dev, void *data)
 252 {
 253         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 254 }
 255
 256 static struct pxamci_platform_data corgi_mci_platform_data = {
 257         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 258         .init           = corgi_mci_init,
 259         .get_ro         = corgi_mci_get_ro,
 260         .setpower       = corgi_mci_setpower,
 261         .exit           = corgi_mci_exit,
 262 };
 263
 264
 265 /*
 266  * Irda
 267  */
 268 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 269 {
 270         if (mode & IR_OFF)
 271                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 272         else
 273                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 274 }
 275
 276 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 277         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 278         .transceiver_mode = corgi_irda_transceiver_mode,
 279 };
 280
 281
 282 /*
 283  * USB Device Controller
 284  */
 285 static void corgi_udc_command(int cmd)
 286 {
 287         switch(cmd)     {
 288         case PXA2XX_UDC_CMD_CONNECT:
 289                 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
 290                 break;
 291         case PXA2XX_UDC_CMD_DISCONNECT:
 292                 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
 293                 break;
 294         }
 295 }
 296
 297 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 298         /* no connect GPIO; corgi can't tell connection status */
 299         .udc_command            = corgi_udc_command,
 300 };
 301
 302
 303 static struct platform_device *devices[] __initdata = {
 304         &corgiscoop_device,
 305         &corgissp_device,
 306         &corgifb_device,
 307         &corgikbd_device,
 308         &corgibl_device,
 309         &corgits_device,
 310         &corgiled_device,
 311 };
 312
 313 static void __init corgi_init(void)
 314 {
 315         /* setup sleep mode values */
 316         PWER  = 0x00000002;
 317         PFER  = 0x00000000;
 318         PRER  = 0x00000002;
 319         PGSR0 = 0x0158C000;
 320         PGSR1 = 0x00FF0080;
 321         PGSR2 = 0x0001C004;
 322         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 323         PCFR |= PCFR_OPDE;
 324
 325         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 326
 327         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 328         pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
 329         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
 330
 331         pxa_set_udc_info(&udc_info);
 332         pxa_set_mci_info(&corgi_mci_platform_data);
 333         pxa_set_ficp_info(&corgi_ficp_platform_data);
 334
 335         platform_scoop_config = &corgi_pcmcia_config;
 336
 337         platform_add_devices(devices, ARRAY_SIZE(devices));
 338 }
 339
 340 static void __init fixup_corgi(struct machine_desc *desc,
 341                 struct tag *tags, char **cmdline, struct meminfo *mi)
 342 {
 343         sharpsl_save_param();
 344         mi->nr_banks=1;
 345         mi->bank[0].start = 0xa0000000;
 346         mi->bank[0].node = 0;
 347         if (machine_is_corgi())
 348                 mi->bank[0].size = (32*1024*1024);
 349         else
 350                 mi->bank[0].size = (64*1024*1024);
 351 }
 352
 353 #ifdef CONFIG_MACH_CORGI
 354 MACHINE_START(CORGI, "SHARP Corgi")
 355         .phys_io        = 0x40000000,
 356         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 357         .fixup          = fixup_corgi,
 358         .map_io         = pxa_map_io,
 359         .init_irq       = pxa_init_irq,
 360         .init_machine   = corgi_init,
 361         .timer          = &pxa_timer,
 362 MACHINE_END
 363 #endif
 364
 365 #ifdef CONFIG_MACH_SHEPHERD
 366 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 367         .phys_io        = 0x40000000,
 368         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 369         .fixup          = fixup_corgi,
 370         .map_io         = pxa_map_io,
 371         .init_irq       = pxa_init_irq,
 372         .init_machine   = corgi_init,
 373         .timer          = &pxa_timer,
 374 MACHINE_END
 375 #endif
 376
 377 #ifdef CONFIG_MACH_HUSKY
 378 MACHINE_START(HUSKY, "SHARP Husky")
 379         .phys_io        = 0x40000000,
 380         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 381         .fixup          = fixup_corgi,
 382         .map_io         = pxa_map_io,
 383         .init_irq       = pxa_init_irq,
 384         .init_machine   = corgi_init,
 385         .timer          = &pxa_timer,
 386 MACHINE_END
 387 #endif
 388