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