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         .set_bl_intensity = corgi_bl_set_intensity,
 145 };
 146
 147 static struct platform_device corgibl_device = {
 148         .name           = "corgi-bl",
 149         .dev            = {
 150                 .parent = &corgifb_device.dev,
 151                 .platform_data  = &corgi_bl_machinfo,
 152         },
 153         .id             = -1,
 154 };
 155
 156
 157 /*
 158  * Corgi Keyboard Device
 159  */
 160 static struct platform_device corgikbd_device = {
 161         .name           = "corgi-keyboard",
 162         .id             = -1,
 163 };
 164
 165
 166 /*
 167  * Corgi Touch Screen Device
 168  */
 169 static struct resource corgits_resources[] = {
 170         [0] = {
 171                 .start          = CORGI_IRQ_GPIO_TP_INT,
 172                 .end            = CORGI_IRQ_GPIO_TP_INT,
 173                 .flags          = IORESOURCE_IRQ,
 174         },
 175 };
 176
 177 static struct corgits_machinfo  corgi_ts_machinfo = {
 178         .get_hsync_len   = corgi_get_hsync_len,
 179         .put_hsync       = corgi_put_hsync,
 180         .wait_hsync      = corgi_wait_hsync,
 181 };
 182
 183 static struct platform_device corgits_device = {
 184         .name           = "corgi-ts",
 185         .dev            = {
 186                 .parent = &corgissp_device.dev,
 187                 .platform_data  = &corgi_ts_machinfo,
 188         },
 189         .id             = -1,
 190         .num_resources  = ARRAY_SIZE(corgits_resources),
 191         .resource       = corgits_resources,
 192 };
 193
 194
 195 /*
 196  * MMC/SD Device
 197  *
 198  * The card detect interrupt isn't debounced so we delay it by 250ms
 199  * to give the card a chance to fully insert/eject.
 200  */
 201 static struct pxamci_platform_data corgi_mci_platform_data;
 202
 203 static int corgi_mci_init(struct device *dev, irqreturn_t (*corgi_detect_int)(int, void *, struct pt_regs *), void *data)
 204 {
 205         int err;
 206
 207         /* setup GPIO for PXA25x MMC controller */
 208         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 209         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 210         pxa_gpio_mode(CORGI_GPIO_nSD_DETECT | GPIO_IN);
 211         pxa_gpio_mode(CORGI_GPIO_SD_PWR | GPIO_OUT);
 212
 213         corgi_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 214
 215         err = request_irq(CORGI_IRQ_GPIO_nSD_DETECT, corgi_detect_int,
 216                           SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
 217                           "MMC card detect", data);
 218         if (err) {
 219                 printk(KERN_ERR "corgi_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 220                 return -1;
 221         }
 222
 223         return 0;
 224 }
 225
 226 static void corgi_mci_setpower(struct device *dev, unsigned int vdd)
 227 {
 228         struct pxamci_platform_data* p_d = dev->platform_data;
 229
 230         if (( 1 << vdd) & p_d->ocr_mask)
 231                 GPSR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 232         else
 233                 GPCR1 = GPIO_bit(CORGI_GPIO_SD_PWR);
 234 }
 235
 236 static int corgi_mci_get_ro(struct device *dev)
 237 {
 238         return GPLR(CORGI_GPIO_nSD_WP) & GPIO_bit(CORGI_GPIO_nSD_WP);
 239 }
 240
 241 static void corgi_mci_exit(struct device *dev, void *data)
 242 {
 243         free_irq(CORGI_IRQ_GPIO_nSD_DETECT, data);
 244 }
 245
 246 static struct pxamci_platform_data corgi_mci_platform_data = {
 247         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 248         .init           = corgi_mci_init,
 249         .get_ro         = corgi_mci_get_ro,
 250         .setpower       = corgi_mci_setpower,
 251         .exit           = corgi_mci_exit,
 252 };
 253
 254
 255 /*
 256  * Irda
 257  */
 258 static void corgi_irda_transceiver_mode(struct device *dev, int mode)
 259 {
 260         if (mode & IR_OFF)
 261                 GPSR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 262         else
 263                 GPCR(CORGI_GPIO_IR_ON) = GPIO_bit(CORGI_GPIO_IR_ON);
 264 }
 265
 266 static struct pxaficp_platform_data corgi_ficp_platform_data = {
 267         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 268         .transceiver_mode = corgi_irda_transceiver_mode,
 269 };
 270
 271
 272 /*
 273  * USB Device Controller
 274  */
 275 static void corgi_udc_command(int cmd)
 276 {
 277         switch(cmd)     {
 278         case PXA2XX_UDC_CMD_CONNECT:
 279                 GPSR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
 280                 break;
 281         case PXA2XX_UDC_CMD_DISCONNECT:
 282                 GPCR(CORGI_GPIO_USB_PULLUP) = GPIO_bit(CORGI_GPIO_USB_PULLUP);
 283                 break;
 284         }
 285 }
 286
 287 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 288         /* no connect GPIO; corgi can't tell connection status */
 289         .udc_command            = corgi_udc_command,
 290 };
 291
 292
 293 static struct platform_device *devices[] __initdata = {
 294         &corgiscoop_device,
 295         &corgissp_device,
 296         &corgifb_device,
 297         &corgikbd_device,
 298         &corgibl_device,
 299         &corgits_device,
 300 };
 301
 302 static void __init corgi_init(void)
 303 {
 304         /* setup sleep mode values */
 305         PWER  = 0x00000002;
 306         PFER  = 0x00000000;
 307         PRER  = 0x00000002;
 308         PGSR0 = 0x0158C000;
 309         PGSR1 = 0x00FF0080;
 310         PGSR2 = 0x0001C004;
 311         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 312         PCFR |= PCFR_OPDE;
 313
 314         corgi_ssp_set_machinfo(&corgi_ssp_machinfo);
 315
 316         pxa_gpio_mode(CORGI_GPIO_IR_ON | GPIO_OUT);
 317         pxa_gpio_mode(CORGI_GPIO_USB_PULLUP | GPIO_OUT);
 318         pxa_gpio_mode(CORGI_GPIO_HSYNC | GPIO_IN);
 319
 320         pxa_set_udc_info(&udc_info);
 321         pxa_set_mci_info(&corgi_mci_platform_data);
 322         pxa_set_ficp_info(&corgi_ficp_platform_data);
 323
 324         platform_scoop_config = &corgi_pcmcia_config;
 325
 326         platform_add_devices(devices, ARRAY_SIZE(devices));
 327 }
 328
 329 static void __init fixup_corgi(struct machine_desc *desc,
 330                 struct tag *tags, char **cmdline, struct meminfo *mi)
 331 {
 332         sharpsl_save_param();
 333         mi->nr_banks=1;
 334         mi->bank[0].start = 0xa0000000;
 335         mi->bank[0].node = 0;
 336         if (machine_is_corgi())
 337                 mi->bank[0].size = (32*1024*1024);
 338         else
 339                 mi->bank[0].size = (64*1024*1024);
 340 }
 341
 342 #ifdef CONFIG_MACH_CORGI
 343 MACHINE_START(CORGI, "SHARP Corgi")
 344         .phys_io        = 0x40000000,
 345         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 346         .fixup          = fixup_corgi,
 347         .map_io         = pxa_map_io,
 348         .init_irq       = pxa_init_irq,
 349         .init_machine   = corgi_init,
 350         .timer          = &pxa_timer,
 351 MACHINE_END
 352 #endif
 353
 354 #ifdef CONFIG_MACH_SHEPHERD
 355 MACHINE_START(SHEPHERD, "SHARP Shepherd")
 356         .phys_io        = 0x40000000,
 357         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 358         .fixup          = fixup_corgi,
 359         .map_io         = pxa_map_io,
 360         .init_irq       = pxa_init_irq,
 361         .init_machine   = corgi_init,
 362         .timer          = &pxa_timer,
 363 MACHINE_END
 364 #endif
 365
 366 #ifdef CONFIG_MACH_HUSKY
 367 MACHINE_START(HUSKY, "SHARP Husky")
 368         .phys_io        = 0x40000000,
 369         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 370         .fixup          = fixup_corgi,
 371         .map_io         = pxa_map_io,
 372         .init_irq       = pxa_init_irq,
 373         .init_machine   = corgi_init,
 374         .timer          = &pxa_timer,
 375 MACHINE_END
 376 #endif
 377