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