arch/arm/mach-pxa/spitz.c

   1 /*
   2  * Support for Sharp SL-Cxx00 Series of PDAs
   3  * Models: SL-C3000 (Spitz), SL-C1000 (Akita) and SL-C3100 (Borzoi)
   4  *
   5  * Copyright (c) 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/device.h>
  18 #include <linux/delay.h>
  19 #include <linux/major.h>
  20 #include <linux/fs.h>
  21 #include <linux/interrupt.h>
  22 #include <linux/mmc/host.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
  31 #include <asm/mach/arch.h>
  32 #include <asm/mach/map.h>
  33 #include <asm/mach/irq.h>
  34
  35 #include <asm/arch/pxa-regs.h>
  36 #include <asm/arch/irq.h>
  37 #include <asm/arch/irda.h>
  38 #include <asm/arch/mmc.h>
  39 #include <asm/arch/udc.h>
  40 #include <asm/arch/pxafb.h>
  41 #include <asm/arch/akita.h>
  42 #include <asm/arch/spitz.h>
  43 #include <asm/arch/sharpsl.h>
  44
  45 #include <asm/mach/sharpsl_param.h>
  46 #include <asm/hardware/scoop.h>
  47
  48 #include "generic.h"
  49 #include "sharpsl.h"
  50
  51 /*
  52  * Spitz SCOOP Device #1
  53  */
  54 static struct resource spitz_scoop_resources[] = {
  55         [0] = {
  56                 .start          = 0x10800000,
  57                 .end            = 0x10800fff,
  58                 .flags          = IORESOURCE_MEM,
  59         },
  60 };
  61
  62 static struct scoop_config spitz_scoop_setup = {
  63         .io_dir         = SPITZ_SCP_IO_DIR,
  64         .io_out         = SPITZ_SCP_IO_OUT,
  65         .suspend_clr = SPITZ_SCP_SUS_CLR,
  66         .suspend_set = SPITZ_SCP_SUS_SET,
  67 };
  68
  69 struct platform_device spitzscoop_device = {
  70         .name           = "sharp-scoop",
  71         .id             = 0,
  72         .dev            = {
  73                 .platform_data  = &spitz_scoop_setup,
  74         },
  75         .num_resources  = ARRAY_SIZE(spitz_scoop_resources),
  76         .resource       = spitz_scoop_resources,
  77 };
  78
  79 /*
  80  * Spitz SCOOP Device #2
  81  */
  82 static struct resource spitz_scoop2_resources[] = {
  83         [0] = {
  84                 .start          = 0x08800040,
  85                 .end            = 0x08800fff,
  86                 .flags          = IORESOURCE_MEM,
  87         },
  88 };
  89
  90 static struct scoop_config spitz_scoop2_setup = {
  91         .io_dir         = SPITZ_SCP2_IO_DIR,
  92         .io_out         = SPITZ_SCP2_IO_OUT,
  93         .suspend_clr = SPITZ_SCP2_SUS_CLR,
  94         .suspend_set = SPITZ_SCP2_SUS_SET,
  95 };
  96
  97 struct platform_device spitzscoop2_device = {
  98         .name           = "sharp-scoop",
  99         .id             = 1,
 100         .dev            = {
 101                 .platform_data  = &spitz_scoop2_setup,
 102         },
 103         .num_resources  = ARRAY_SIZE(spitz_scoop2_resources),
 104         .resource       = spitz_scoop2_resources,
 105 };
 106
 107 static struct scoop_pcmcia_dev spitz_pcmcia_scoop[] = {
 108 {
 109         .dev        = &spitzscoop_device.dev,
 110         .irq        = SPITZ_IRQ_GPIO_CF_IRQ,
 111         .cd_irq     = SPITZ_IRQ_GPIO_CF_CD,
 112         .cd_irq_str = "PCMCIA0 CD",
 113 },{
 114         .dev        = &spitzscoop2_device.dev,
 115         .irq        = SPITZ_IRQ_GPIO_CF2_IRQ,
 116         .cd_irq     = -1,
 117 },
 118 };
 119
 120
 121 /*
 122  * Spitz SSP Device
 123  *
 124  * Set the parent as the scoop device because a lot of SSP devices
 125  * also use scoop functions and this makes the power up/down order
 126  * work correctly.
 127  */
 128 struct platform_device spitzssp_device = {
 129         .name           = "corgi-ssp",
 130         .dev            = {
 131                 .parent = &spitzscoop_device.dev,
 132         },
 133         .id             = -1,
 134 };
 135
 136 struct corgissp_machinfo spitz_ssp_machinfo = {
 137         .port           = 2,
 138         .cs_lcdcon      = SPITZ_GPIO_LCDCON_CS,
 139         .cs_ads7846     = SPITZ_GPIO_ADS7846_CS,
 140         .cs_max1111     = SPITZ_GPIO_MAX1111_CS,
 141         .clk_lcdcon     = 520,
 142         .clk_ads7846    = 14,
 143         .clk_max1111    = 56,
 144 };
 145
 146
 147 /*
 148  * Spitz Backlight Device
 149  */
 150 static struct corgibl_machinfo spitz_bl_machinfo = {
 151         .max_intensity = 0x2f,
 152 };
 153
 154 static struct platform_device spitzbl_device = {
 155         .name           = "corgi-bl",
 156         .dev            = {
 157                 .platform_data  = &spitz_bl_machinfo,
 158         },
 159         .id             = -1,
 160 };
 161
 162
 163 /*
 164  * Spitz Keyboard Device
 165  */
 166 static struct platform_device spitzkbd_device = {
 167         .name           = "spitz-keyboard",
 168         .id             = -1,
 169 };
 170
 171
 172 /*
 173  * Spitz Touch Screen Device
 174  */
 175 static struct resource spitzts_resources[] = {
 176         [0] = {
 177                 .start          = SPITZ_IRQ_GPIO_TP_INT,
 178                 .end            = SPITZ_IRQ_GPIO_TP_INT,
 179                 .flags          = IORESOURCE_IRQ,
 180         },
 181 };
 182
 183 static struct corgits_machinfo  spitz_ts_machinfo = {
 184         .get_hsync_len   = spitz_get_hsync_len,
 185         .put_hsync       = spitz_put_hsync,
 186         .wait_hsync      = spitz_wait_hsync,
 187 };
 188
 189 static struct platform_device spitzts_device = {
 190         .name           = "corgi-ts",
 191         .dev            = {
 192                 .parent = &spitzssp_device.dev,
 193                 .platform_data  = &spitz_ts_machinfo,
 194         },
 195         .id             = -1,
 196         .num_resources  = ARRAY_SIZE(spitzts_resources),
 197         .resource       = spitzts_resources,
 198 };
 199
 200
 201 /*
 202  * MMC/SD Device
 203  *
 204  * The card detect interrupt isn't debounced so we delay it by 250ms
 205  * to give the card a chance to fully insert/eject.
 206  */
 207
 208 static struct pxamci_platform_data spitz_mci_platform_data;
 209
 210 static int spitz_mci_init(struct device *dev, irqreturn_t (*spitz_detect_int)(int, void *, struct pt_regs *), void *data)
 211 {
 212         int err;
 213
 214         /* setup GPIO for PXA27x MMC controller */
 215         pxa_gpio_mode(GPIO32_MMCCLK_MD);
 216         pxa_gpio_mode(GPIO112_MMCCMD_MD);
 217         pxa_gpio_mode(GPIO92_MMCDAT0_MD);
 218         pxa_gpio_mode(GPIO109_MMCDAT1_MD);
 219         pxa_gpio_mode(GPIO110_MMCDAT2_MD);
 220         pxa_gpio_mode(GPIO111_MMCDAT3_MD);
 221         pxa_gpio_mode(SPITZ_GPIO_nSD_DETECT | GPIO_IN);
 222         pxa_gpio_mode(SPITZ_GPIO_nSD_WP | GPIO_IN);
 223
 224         spitz_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 225
 226         err = request_irq(SPITZ_IRQ_GPIO_nSD_DETECT, spitz_detect_int, SA_INTERRUPT,
 227                              "MMC card detect", data);
 228         if (err) {
 229                 printk(KERN_ERR "spitz_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 230                 return -1;
 231         }
 232
 233         set_irq_type(SPITZ_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
 234
 235         return 0;
 236 }
 237
 238 /* Power control is shared with one of the CF slots so we have a mess */
 239 static void spitz_mci_setpower(struct device *dev, unsigned int vdd)
 240 {
 241         struct pxamci_platform_data* p_d = dev->platform_data;
 242
 243         unsigned short cpr = read_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR);
 244
 245         if (( 1 << vdd) & p_d->ocr_mask) {
 246                 /* printk(KERN_DEBUG "%s: on\n", __FUNCTION__); */
 247                 set_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
 248                 mdelay(2);
 249                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr | 0x04);
 250         } else {
 251                 /* printk(KERN_DEBUG "%s: off\n", __FUNCTION__); */
 252                 write_scoop_reg(&spitzscoop_device.dev, SCOOP_CPR, cpr & ~0x04);
 253
 254                 if (!(cpr | 0x02)) {
 255                         mdelay(1);
 256                         reset_scoop_gpio(&spitzscoop_device.dev, SPITZ_SCP_CF_POWER);
 257                 }
 258         }
 259 }
 260
 261 static int spitz_mci_get_ro(struct device *dev)
 262 {
 263         return GPLR(SPITZ_GPIO_nSD_WP) & GPIO_bit(SPITZ_GPIO_nSD_WP);
 264 }
 265
 266 static void spitz_mci_exit(struct device *dev, void *data)
 267 {
 268         free_irq(SPITZ_IRQ_GPIO_nSD_DETECT, data);
 269 }
 270
 271 static struct pxamci_platform_data spitz_mci_platform_data = {
 272         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 273         .init           = spitz_mci_init,
 274         .get_ro         = spitz_mci_get_ro,
 275         .setpower       = spitz_mci_setpower,
 276         .exit           = spitz_mci_exit,
 277 };
 278
 279
 280 /*
 281  * Irda
 282  */
 283 static void spitz_irda_transceiver_mode(struct device *dev, int mode)
 284 {
 285         if (mode & IR_OFF)
 286                 set_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 287         else
 288                 reset_scoop_gpio(&spitzscoop2_device.dev, SPITZ_SCP2_IR_ON);
 289 }
 290
 291 static struct pxaficp_platform_data spitz_ficp_platform_data = {
 292         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 293         .transceiver_mode = spitz_irda_transceiver_mode,
 294 };
 295
 296
 297 /*
 298  * Spitz PXA Framebuffer
 299  */
 300 static struct pxafb_mach_info spitz_pxafb_info __initdata = {
 301         .pixclock       = 19231,
 302         .xres           = 480,
 303         .yres           = 640,
 304         .bpp            = 16,
 305         .hsync_len      = 40,
 306         .left_margin    = 46,
 307         .right_margin   = 125,
 308         .vsync_len      = 3,
 309         .upper_margin   = 1,
 310         .lower_margin   = 0,
 311         .sync           = 0,
 312         .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act | LCCR0_LDDALT | LCCR0_OUC | LCCR0_CMDIM | LCCR0_RDSTM,
 313         .lccr3          = LCCR3_PixRsEdg | LCCR3_OutEnH,
 314         .pxafb_lcd_power = spitz_lcd_power,
 315 };
 316
 317
 318 static struct platform_device *devices[] __initdata = {
 319         &spitzscoop_device,
 320         &spitzssp_device,
 321         &spitzkbd_device,
 322         &spitzts_device,
 323         &spitzbl_device,
 324 };
 325
 326 static void __init common_init(void)
 327 {
 328         PMCR = 0x00;
 329
 330         /* setup sleep mode values */
 331         PWER  = 0x00000002;
 332         PFER  = 0x00000000;
 333         PRER  = 0x00000002;
 334         PGSR0 = 0x0158C000;
 335         PGSR1 = 0x00FF0080;
 336         PGSR2 = 0x0001C004;
 337
 338         /* Stop 3.6MHz and drive HIGH to PCMCIA and CS */
 339         PCFR |= PCFR_OPDE;
 340
 341         corgi_ssp_set_machinfo(&spitz_ssp_machinfo);
 342
 343         pxa_gpio_mode(SPITZ_GPIO_HSYNC | GPIO_IN);
 344
 345         platform_add_devices(devices, ARRAY_SIZE(devices));
 346         pxa_set_mci_info(&spitz_mci_platform_data);
 347         pxa_set_ficp_info(&spitz_ficp_platform_data);
 348         set_pxa_fb_parent(&spitzssp_device.dev);
 349         set_pxa_fb_info(&spitz_pxafb_info);
 350 }
 351
 352 static void __init spitz_init(void)
 353 {
 354         scoop_num = 2;
 355         scoop_devs = &spitz_pcmcia_scoop[0];
 356         spitz_bl_machinfo.set_bl_intensity = spitz_bl_set_intensity;
 357
 358         common_init();
 359
 360         platform_device_register(&spitzscoop2_device);
 361 }
 362
 363 static void __init fixup_spitz(struct machine_desc *desc,
 364                 struct tag *tags, char **cmdline, struct meminfo *mi)
 365 {
 366         sharpsl_save_param();
 367         mi->nr_banks = 1;
 368         mi->bank[0].start = 0xa0000000;
 369         mi->bank[0].node = 0;
 370         mi->bank[0].size = (64*1024*1024);
 371 }
 372
 373 #ifdef CONFIG_MACH_SPITZ
 374 MACHINE_START(SPITZ, "SHARP Spitz")
 375         .phys_ram       = 0xa0000000,
 376         .phys_io        = 0x40000000,
 377         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 378         .fixup          = fixup_spitz,
 379         .map_io         = pxa_map_io,
 380         .init_irq       = pxa_init_irq,
 381         .init_machine   = spitz_init,
 382         .timer          = &pxa_timer,
 383 MACHINE_END
 384 #endif
 385
 386 #ifdef CONFIG_MACH_BORZOI
 387 MACHINE_START(BORZOI, "SHARP Borzoi")
 388         .phys_ram       = 0xa0000000,
 389         .phys_io        = 0x40000000,
 390         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 391         .fixup          = fixup_spitz,
 392         .map_io         = pxa_map_io,
 393         .init_irq       = pxa_init_irq,
 394         .init_machine   = spitz_init,
 395         .timer          = &pxa_timer,
 396 MACHINE_END
 397 #endif