arch/arm/mach-pxa/tosa.c

   1 /*
   2  *  Support for Sharp SL-C6000x PDAs
   3  *  Model: (Tosa)
   4  *
   5  *  Copyright (c) 2005 Dirk Opfer
   6  *
   7  *      Based on code written by Sharp/Lineo for 2.4 kernels
   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/arch/irda.h>
  29 #include <asm/arch/mmc.h>
  30 #include <asm/arch/udc.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/irq.h>
  38 #include <asm/arch/tosa.h>
  39
  40 #include <asm/hardware/scoop.h>
  41 #include <asm/mach/sharpsl_param.h>
  42
  43 #include "generic.h"
  44
  45
  46 /*
  47  * SCOOP Device
  48  */
  49 static struct resource tosa_scoop_resources[] = {
  50         [0] = {
  51                 .start  = TOSA_CF_PHYS,
  52                 .end    = TOSA_CF_PHYS + 0xfff,
  53                 .flags  = IORESOURCE_MEM,
  54         },
  55 };
  56
  57 static struct scoop_config tosa_scoop_setup = {
  58         .io_dir         = TOSA_SCOOP_IO_DIR,
  59         .io_out         = TOSA_SCOOP_IO_OUT,
  60
  61 };
  62
  63 struct platform_device tosascoop_device = {
  64         .name           = "sharp-scoop",
  65         .id             = 0,
  66         .dev            = {
  67                 .platform_data  = &tosa_scoop_setup,
  68         },
  69         .num_resources  = ARRAY_SIZE(tosa_scoop_resources),
  70         .resource       = tosa_scoop_resources,
  71 };
  72
  73
  74 /*
  75  * SCOOP Device Jacket
  76  */
  77 static struct resource tosa_scoop_jc_resources[] = {
  78         [0] = {
  79                 .start          = TOSA_SCOOP_PHYS + 0x40,
  80                 .end            = TOSA_SCOOP_PHYS + 0xfff,
  81                 .flags          = IORESOURCE_MEM,
  82         },
  83 };
  84
  85 static struct scoop_config tosa_scoop_jc_setup = {
  86         .io_dir         = TOSA_SCOOP_JC_IO_DIR,
  87         .io_out         = TOSA_SCOOP_JC_IO_OUT,
  88 };
  89
  90 struct platform_device tosascoop_jc_device = {
  91         .name           = "sharp-scoop",
  92         .id             = 1,
  93         .dev            = {
  94                 .platform_data  = &tosa_scoop_jc_setup,
  95                 .parent         = &tosascoop_device.dev,
  96         },
  97         .num_resources  = ARRAY_SIZE(tosa_scoop_jc_resources),
  98         .resource       = tosa_scoop_jc_resources,
  99 };
 100
 101 /*
 102  * PCMCIA
 103  */
 104 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 105 {
 106         .dev        = &tosascoop_device.dev,
 107         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 108         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 109         .cd_irq_str = "PCMCIA0 CD",
 110 },{
 111         .dev        = &tosascoop_jc_device.dev,
 112         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 113         .cd_irq     = -1,
 114 },
 115 };
 116
 117 static void tosa_pcmcia_init(void)
 118 {
 119         /* Setup default state of GPIO outputs
 120            before we enable them as outputs. */
 121         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
 122                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
 123                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
 124                 GPIO_bit(GPIO53_nPCE_2);
 125
 126         pxa_gpio_mode(GPIO48_nPOE_MD);
 127         pxa_gpio_mode(GPIO49_nPWE_MD);
 128         pxa_gpio_mode(GPIO50_nPIOR_MD);
 129         pxa_gpio_mode(GPIO51_nPIOW_MD);
 130         pxa_gpio_mode(GPIO55_nPREG_MD);
 131         pxa_gpio_mode(GPIO56_nPWAIT_MD);
 132         pxa_gpio_mode(GPIO57_nIOIS16_MD);
 133         pxa_gpio_mode(GPIO52_nPCE_1_MD);
 134         pxa_gpio_mode(GPIO53_nPCE_2_MD);
 135         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
 136 }
 137
 138 static struct scoop_pcmcia_config tosa_pcmcia_config = {
 139         .devs         = &tosa_pcmcia_scoop[0],
 140         .num_devs     = 2,
 141         .pcmcia_init  = tosa_pcmcia_init,
 142 };
 143
 144 /*
 145  * USB Device Controller
 146  */
 147 static void tosa_udc_command(int cmd)
 148 {
 149         switch(cmd)     {
 150                 case PXA2XX_UDC_CMD_CONNECT:
 151                         set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 152                         break;
 153                 case PXA2XX_UDC_CMD_DISCONNECT:
 154                         reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 155                         break;
 156         }
 157 }
 158
 159 static int tosa_udc_is_connected(void)
 160 {
 161         return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0);
 162 }
 163
 164
 165 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 166         .udc_command            = tosa_udc_command,
 167         .udc_is_connected       = tosa_udc_is_connected,
 168 };
 169
 170 /*
 171  * MMC/SD Device
 172  */
 173 static struct pxamci_platform_data tosa_mci_platform_data;
 174
 175 static int tosa_mci_init(struct device *dev, irqreturn_t (*tosa_detect_int)(int, void *, struct pt_regs *), void *data)
 176 {
 177         int err;
 178
 179         /* setup GPIO for PXA25x MMC controller */
 180         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 181         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 182         pxa_gpio_mode(TOSA_GPIO_nSD_DETECT | GPIO_IN);
 183
 184         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 185
 186         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int, SA_INTERRUPT,
 187                                 "MMC/SD card detect", data);
 188         if (err) {
 189                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 190                 return -1;
 191         }
 192
 193         set_irq_type(TOSA_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
 194
 195         return 0;
 196 }
 197
 198 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 199 {
 200         struct pxamci_platform_data* p_d = dev->platform_data;
 201
 202         if (( 1 << vdd) & p_d->ocr_mask) {
 203                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 204         } else {
 205                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 206         }
 207 }
 208
 209 static int tosa_mci_get_ro(struct device *dev)
 210 {
 211         return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP);
 212 }
 213
 214 static void tosa_mci_exit(struct device *dev, void *data)
 215 {
 216         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 217 }
 218
 219 static struct pxamci_platform_data tosa_mci_platform_data = {
 220         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 221         .init           = tosa_mci_init,
 222         .get_ro         = tosa_mci_get_ro,
 223         .setpower       = tosa_mci_setpower,
 224         .exit           = tosa_mci_exit,
 225 };
 226
 227 /*
 228  * Irda
 229  */
 230 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 231 {
 232         if (mode & IR_OFF) {
 233                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 234                 pxa_gpio_mode(GPIO47_STTXD|GPIO_DFLT_LOW);
 235                 pxa_gpio_mode(GPIO47_STTXD|GPIO_OUT);
 236         } else {
 237                 pxa_gpio_mode(GPIO47_STTXD_MD);
 238                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 239         }
 240 }
 241
 242 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 243         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 244         .transceiver_mode = tosa_irda_transceiver_mode,
 245 };
 246
 247 /*
 248  * Tosa Keyboard
 249  */
 250 static struct platform_device tosakbd_device = {
 251         .name           = "tosa-keyboard",
 252         .id             = -1,
 253 };
 254
 255 static struct platform_device *devices[] __initdata = {
 256         &tosascoop_device,
 257         &tosascoop_jc_device,
 258         &tosakbd_device,
 259 };
 260
 261 static void __init tosa_init(void)
 262 {
 263         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN);
 264         pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN);
 265         pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN);
 266
 267         /* setup sleep mode values */
 268         PWER  = 0x00000002;
 269         PFER  = 0x00000000;
 270         PRER  = 0x00000002;
 271         PGSR0 = 0x00000000;
 272         PGSR1 = 0x00FF0002;
 273         PGSR2 = 0x00014000;
 274         PCFR |= PCFR_OPDE;
 275
 276         /* enable batt_fault */
 277         PMCR = 0x01;
 278
 279         pxa_set_mci_info(&tosa_mci_platform_data);
 280         pxa_set_udc_info(&udc_info);
 281         pxa_set_ficp_info(&tosa_ficp_platform_data);
 282         platform_scoop_config = &tosa_pcmcia_config;
 283
 284         platform_add_devices(devices, ARRAY_SIZE(devices));
 285 }
 286
 287 static void __init fixup_tosa(struct machine_desc *desc,
 288                 struct tag *tags, char **cmdline, struct meminfo *mi)
 289 {
 290         sharpsl_save_param();
 291         mi->nr_banks=1;
 292         mi->bank[0].start = 0xa0000000;
 293         mi->bank[0].node = 0;
 294         mi->bank[0].size = (64*1024*1024);
 295 }
 296
 297 MACHINE_START(TOSA, "SHARP Tosa")
 298         .phys_io        = 0x40000000,
 299         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 300         .fixup          = fixup_tosa,
 301         .map_io         = pxa_map_io,
 302         .init_irq       = pxa_init_irq,
 303         .init_machine   = tosa_init,
 304         .timer          = &pxa_timer,
 305 MACHINE_END