arch/arm/mach-pxa/poodle.c

   1 /*
   2  * linux/arch/arm/mach-pxa/poodle.c
   3  *
   4  *  Support for the SHARP Poodle Board.
   5  *
   6  * Based on:
   7  *  linux/arch/arm/mach-pxa/lubbock.c Author:   Nicolas Pitre
   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  * Change Log
  14  *  12-Dec-2002 Sharp Corporation for Poodle
  15  *  John Lenz <lenz@cs.wisc.edu> updates to 2.6
  16  */
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/platform_device.h>
  20 #include <linux/fb.h>
  21 #include <linux/pm.h>
  22 #include <linux/delay.h>
  23
  24 #include <asm/hardware.h>
  25 #include <asm/mach-types.h>
  26 #include <asm/irq.h>
  27 #include <asm/setup.h>
  28 #include <asm/system.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/mmc.h>
  36 #include <asm/arch/udc.h>
  37 #include <asm/arch/irda.h>
  38 #include <asm/arch/poodle.h>
  39 #include <asm/arch/pxafb.h>
  40
  41 #include <asm/hardware/scoop.h>
  42 #include <asm/hardware/locomo.h>
  43 #include <asm/mach/sharpsl_param.h>
  44
  45 #include "generic.h"
  46
  47 static struct resource poodle_scoop_resources[] = {
  48         [0] = {
  49                 .start          = 0x10800000,
  50                 .end            = 0x10800fff,
  51                 .flags          = IORESOURCE_MEM,
  52         },
  53 };
  54
  55 static struct scoop_config poodle_scoop_setup = {
  56         .io_dir         = POODLE_SCOOP_IO_DIR,
  57         .io_out         = POODLE_SCOOP_IO_OUT,
  58 };
  59
  60 struct platform_device poodle_scoop_device = {
  61         .name           = "sharp-scoop",
  62         .id             = -1,
  63         .dev            = {
  64                 .platform_data  = &poodle_scoop_setup,
  65         },
  66         .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
  67         .resource       = poodle_scoop_resources,
  68 };
  69
  70 static void poodle_pcmcia_init(void)
  71 {
  72         /* Setup default state of GPIO outputs
  73            before we enable them as outputs. */
  74         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
  75                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
  76                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
  77                 GPIO_bit(GPIO53_nPCE_2);
  78
  79         pxa_gpio_mode(GPIO48_nPOE_MD);
  80         pxa_gpio_mode(GPIO49_nPWE_MD);
  81         pxa_gpio_mode(GPIO50_nPIOR_MD);
  82         pxa_gpio_mode(GPIO51_nPIOW_MD);
  83         pxa_gpio_mode(GPIO55_nPREG_MD);
  84         pxa_gpio_mode(GPIO56_nPWAIT_MD);
  85         pxa_gpio_mode(GPIO57_nIOIS16_MD);
  86         pxa_gpio_mode(GPIO52_nPCE_1_MD);
  87         pxa_gpio_mode(GPIO53_nPCE_2_MD);
  88         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
  89 }
  90
  91 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
  92 {
  93         .dev        = &poodle_scoop_device.dev,
  94         .irq        = POODLE_IRQ_GPIO_CF_IRQ,
  95         .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
  96         .cd_irq_str = "PCMCIA0 CD",
  97 },
  98 };
  99
 100 static struct scoop_pcmcia_config poodle_pcmcia_config = {
 101         .devs         = &poodle_pcmcia_scoop[0],
 102         .num_devs     = 1,
 103         .pcmcia_init  = poodle_pcmcia_init,
 104 };
 105
 106 EXPORT_SYMBOL(poodle_scoop_device);
 107
 108
 109 /* LoCoMo device */
 110 static struct resource locomo_resources[] = {
 111         [0] = {
 112                 .start          = 0x10000000,
 113                 .end            = 0x10001fff,
 114                 .flags          = IORESOURCE_MEM,
 115         },
 116         [1] = {
 117                 .start          = IRQ_GPIO(10),
 118                 .end            = IRQ_GPIO(10),
 119                 .flags          = IORESOURCE_IRQ,
 120         },
 121 };
 122
 123 static struct platform_device locomo_device = {
 124         .name           = "locomo",
 125         .id             = 0,
 126         .num_resources  = ARRAY_SIZE(locomo_resources),
 127         .resource       = locomo_resources,
 128 };
 129
 130
 131 /*
 132  * MMC/SD Device
 133  *
 134  * The card detect interrupt isn't debounced so we delay it by 250ms
 135  * to give the card a chance to fully insert/eject.
 136  */
 137 static struct pxamci_platform_data poodle_mci_platform_data;
 138
 139 static int poodle_mci_init(struct device *dev, irqreturn_t (*poodle_detect_int)(int, void *, struct pt_regs *), void *data)
 140 {
 141         int err;
 142
 143         /* setup GPIO for PXA25x MMC controller */
 144         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 145         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 146         pxa_gpio_mode(POODLE_GPIO_nSD_DETECT | GPIO_IN);
 147         pxa_gpio_mode(POODLE_GPIO_nSD_WP | GPIO_IN);
 148         pxa_gpio_mode(POODLE_GPIO_SD_PWR | GPIO_OUT);
 149         pxa_gpio_mode(POODLE_GPIO_SD_PWR1 | GPIO_OUT);
 150
 151         poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 152
 153         err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int,
 154                           SA_INTERRUPT | SA_TRIGGER_RISING | SA_TRIGGER_FALLING,
 155                           "MMC card detect", data);
 156         if (err) {
 157                 printk(KERN_ERR "poodle_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 158                 return -1;
 159         }
 160
 161         return 0;
 162 }
 163
 164 static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
 165 {
 166         struct pxamci_platform_data* p_d = dev->platform_data;
 167
 168         if (( 1 << vdd) & p_d->ocr_mask) {
 169                 GPSR(POODLE_GPIO_SD_PWR) = GPIO_bit(POODLE_GPIO_SD_PWR);
 170                 mdelay(2);
 171                 GPSR(POODLE_GPIO_SD_PWR1) = GPIO_bit(POODLE_GPIO_SD_PWR1);
 172         } else {
 173                 GPCR(POODLE_GPIO_SD_PWR1) = GPIO_bit(POODLE_GPIO_SD_PWR1);
 174                 GPCR(POODLE_GPIO_SD_PWR) = GPIO_bit(POODLE_GPIO_SD_PWR);
 175         }
 176 }
 177
 178 static int poodle_mci_get_ro(struct device *dev)
 179 {
 180         return GPLR(POODLE_GPIO_nSD_WP) & GPIO_bit(POODLE_GPIO_nSD_WP);
 181 }
 182
 183
 184 static void poodle_mci_exit(struct device *dev, void *data)
 185 {
 186         free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);
 187 }
 188
 189 static struct pxamci_platform_data poodle_mci_platform_data = {
 190         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 191         .init           = poodle_mci_init,
 192         .get_ro         = poodle_mci_get_ro,
 193         .setpower       = poodle_mci_setpower,
 194         .exit           = poodle_mci_exit,
 195 };
 196
 197
 198 /*
 199  * Irda
 200  */
 201 static void poodle_irda_transceiver_mode(struct device *dev, int mode)
 202 {
 203         if (mode & IR_OFF) {
 204                 GPSR(POODLE_GPIO_IR_ON) = GPIO_bit(POODLE_GPIO_IR_ON);
 205         } else {
 206                 GPCR(POODLE_GPIO_IR_ON) = GPIO_bit(POODLE_GPIO_IR_ON);
 207         }
 208 }
 209
 210 static struct pxaficp_platform_data poodle_ficp_platform_data = {
 211         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 212         .transceiver_mode = poodle_irda_transceiver_mode,
 213 };
 214
 215
 216 /*
 217  * USB Device Controller
 218  */
 219 static void poodle_udc_command(int cmd)
 220 {
 221         switch(cmd)     {
 222         case PXA2XX_UDC_CMD_CONNECT:
 223                 GPSR(POODLE_GPIO_USB_PULLUP) = GPIO_bit(POODLE_GPIO_USB_PULLUP);
 224                 break;
 225         case PXA2XX_UDC_CMD_DISCONNECT:
 226                 GPCR(POODLE_GPIO_USB_PULLUP) = GPIO_bit(POODLE_GPIO_USB_PULLUP);
 227                 break;
 228         }
 229 }
 230
 231 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 232         /* no connect GPIO; poodle can't tell connection status */
 233         .udc_command            = poodle_udc_command,
 234 };
 235
 236
 237 /* PXAFB device */
 238 static struct pxafb_mach_info poodle_fb_info __initdata = {
 239         .pixclock       = 144700,
 240
 241         .xres           = 320,
 242         .yres           = 240,
 243         .bpp            = 16,
 244
 245         .hsync_len      = 7,
 246         .left_margin    = 11,
 247         .right_margin   = 30,
 248
 249         .vsync_len      = 2,
 250         .upper_margin   = 2,
 251         .lower_margin   = 0,
 252         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 253
 254         .lccr0          = LCCR0_Act | LCCR0_Sngl | LCCR0_Color,
 255         .lccr3          = 0,
 256
 257         .pxafb_backlight_power  = NULL,
 258         .pxafb_lcd_power        = NULL,
 259 };
 260
 261 static struct platform_device *devices[] __initdata = {
 262         &locomo_device,
 263         &poodle_scoop_device,
 264 };
 265
 266 static void poodle_poweroff(void)
 267 {
 268         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 269         arm_machine_restart('h');
 270 }
 271
 272 static void poodle_restart(char mode)
 273 {
 274         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 275         arm_machine_restart('h');
 276 }
 277
 278 static void __init poodle_init(void)
 279 {
 280         int ret = 0;
 281
 282         pm_power_off = poodle_poweroff;
 283         arm_pm_restart = poodle_restart;
 284
 285         /* setup sleep mode values */
 286         PWER  = 0x00000002;
 287         PFER  = 0x00000000;
 288         PRER  = 0x00000002;
 289         PGSR0 = 0x00008000;
 290         PGSR1 = 0x003F0202;
 291         PGSR2 = 0x0001C000;
 292         PCFR |= PCFR_OPDE;
 293
 294         /* cpu initialize */
 295         /* Pgsr Register */
 296         PGSR0 = 0x0146dd80;
 297         PGSR1 = 0x03bf0890;
 298         PGSR2 = 0x0001c000;
 299
 300         /* Alternate Register */
 301         GAFR0_L = 0x01001000;
 302         GAFR0_U = 0x591a8010;
 303         GAFR1_L = 0x900a8451;
 304         GAFR1_U = 0xaaa5aaaa;
 305         GAFR2_L = 0x8aaaaaaa;
 306         GAFR2_U = 0x00000002;
 307
 308         /* Direction Register */
 309         GPDR0 = 0xd3f0904c;
 310         GPDR1 = 0xfcffb7d3;
 311         GPDR2 = 0x0001ffff;
 312
 313         /* Output Register */
 314         GPCR0 = 0x00000000;
 315         GPCR1 = 0x00000000;
 316         GPCR2 = 0x00000000;
 317
 318         GPSR0 = 0x00400000;
 319         GPSR1 = 0x00000000;
 320         GPSR2 = 0x00000000;
 321
 322         set_pxa_fb_info(&poodle_fb_info);
 323         pxa_gpio_mode(POODLE_GPIO_USB_PULLUP | GPIO_OUT);
 324         pxa_gpio_mode(POODLE_GPIO_IR_ON | GPIO_OUT);
 325         pxa_set_udc_info(&udc_info);
 326         pxa_set_mci_info(&poodle_mci_platform_data);
 327         pxa_set_ficp_info(&poodle_ficp_platform_data);
 328
 329         platform_scoop_config = &poodle_pcmcia_config;
 330
 331         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 332         if (ret) {
 333                 printk(KERN_WARNING "poodle: Unable to register LoCoMo device\n");
 334         }
 335 }
 336
 337 static void __init fixup_poodle(struct machine_desc *desc,
 338                 struct tag *tags, char **cmdline, struct meminfo *mi)
 339 {
 340         sharpsl_save_param();
 341         mi->nr_banks=1;
 342         mi->bank[0].start = 0xa0000000;
 343         mi->bank[0].node = 0;
 344         mi->bank[0].size = (32*1024*1024);
 345 }
 346
 347 MACHINE_START(POODLE, "SHARP Poodle")
 348         .phys_io        = 0x40000000,
 349         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 350         .fixup          = fixup_poodle,
 351         .map_io         = pxa_map_io,
 352         .init_irq       = pxa_init_irq,
 353         .timer          = &pxa_timer,
 354         .init_machine   = poodle_init,
 355 MACHINE_END