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