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 #include <linux/pm.h>
  23 #include <linux/delay.h>
  24
  25 #include <asm/setup.h>
  26 #include <asm/memory.h>
  27 #include <asm/mach-types.h>
  28 #include <asm/hardware.h>
  29 #include <asm/irq.h>
  30 #include <asm/system.h>
  31 #include <asm/arch/pxa-regs.h>
  32 #include <asm/arch/pxa2xx-regs.h>
  33 #include <asm/arch/irda.h>
  34 #include <asm/arch/mmc.h>
  35 #include <asm/arch/udc.h>
  36
  37 #include <asm/mach/arch.h>
  38 #include <asm/mach/map.h>
  39 #include <asm/mach/irq.h>
  40 #include <asm/arch/tosa.h>
  41
  42 #include <asm/hardware/scoop.h>
  43 #include <asm/mach/sharpsl_param.h>
  44
  45 #include "generic.h"
  46 #include "devices.h"
  47
  48 /*
  49  * SCOOP Device
  50  */
  51 static struct resource tosa_scoop_resources[] = {
  52         [0] = {
  53                 .start  = TOSA_CF_PHYS,
  54                 .end    = TOSA_CF_PHYS + 0xfff,
  55                 .flags  = IORESOURCE_MEM,
  56         },
  57 };
  58
  59 static struct scoop_config tosa_scoop_setup = {
  60         .io_dir         = TOSA_SCOOP_IO_DIR,
  61         .io_out         = TOSA_SCOOP_IO_OUT,
  62
  63 };
  64
  65 struct platform_device tosascoop_device = {
  66         .name           = "sharp-scoop",
  67         .id             = 0,
  68         .dev            = {
  69                 .platform_data  = &tosa_scoop_setup,
  70         },
  71         .num_resources  = ARRAY_SIZE(tosa_scoop_resources),
  72         .resource       = tosa_scoop_resources,
  73 };
  74
  75
  76 /*
  77  * SCOOP Device Jacket
  78  */
  79 static struct resource tosa_scoop_jc_resources[] = {
  80         [0] = {
  81                 .start          = TOSA_SCOOP_PHYS + 0x40,
  82                 .end            = TOSA_SCOOP_PHYS + 0xfff,
  83                 .flags          = IORESOURCE_MEM,
  84         },
  85 };
  86
  87 static struct scoop_config tosa_scoop_jc_setup = {
  88         .io_dir         = TOSA_SCOOP_JC_IO_DIR,
  89         .io_out         = TOSA_SCOOP_JC_IO_OUT,
  90 };
  91
  92 struct platform_device tosascoop_jc_device = {
  93         .name           = "sharp-scoop",
  94         .id             = 1,
  95         .dev            = {
  96                 .platform_data  = &tosa_scoop_jc_setup,
  97                 .parent         = &tosascoop_device.dev,
  98         },
  99         .num_resources  = ARRAY_SIZE(tosa_scoop_jc_resources),
 100         .resource       = tosa_scoop_jc_resources,
 101 };
 102
 103 /*
 104  * PCMCIA
 105  */
 106 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 107 {
 108         .dev        = &tosascoop_device.dev,
 109         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 110         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 111         .cd_irq_str = "PCMCIA0 CD",
 112 },{
 113         .dev        = &tosascoop_jc_device.dev,
 114         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 115         .cd_irq     = -1,
 116 },
 117 };
 118
 119 static void tosa_pcmcia_init(void)
 120 {
 121         /* Setup default state of GPIO outputs
 122            before we enable them as outputs. */
 123         GPSR(GPIO48_nPOE) = GPIO_bit(GPIO48_nPOE) |
 124                 GPIO_bit(GPIO49_nPWE) | GPIO_bit(GPIO50_nPIOR) |
 125                 GPIO_bit(GPIO51_nPIOW) | GPIO_bit(GPIO52_nPCE_1) |
 126                 GPIO_bit(GPIO53_nPCE_2);
 127
 128         pxa_gpio_mode(GPIO48_nPOE_MD);
 129         pxa_gpio_mode(GPIO49_nPWE_MD);
 130         pxa_gpio_mode(GPIO50_nPIOR_MD);
 131         pxa_gpio_mode(GPIO51_nPIOW_MD);
 132         pxa_gpio_mode(GPIO55_nPREG_MD);
 133         pxa_gpio_mode(GPIO56_nPWAIT_MD);
 134         pxa_gpio_mode(GPIO57_nIOIS16_MD);
 135         pxa_gpio_mode(GPIO52_nPCE_1_MD);
 136         pxa_gpio_mode(GPIO53_nPCE_2_MD);
 137         pxa_gpio_mode(GPIO54_pSKTSEL_MD);
 138 }
 139
 140 static struct scoop_pcmcia_config tosa_pcmcia_config = {
 141         .devs         = &tosa_pcmcia_scoop[0],
 142         .num_devs     = 2,
 143         .pcmcia_init  = tosa_pcmcia_init,
 144 };
 145
 146 /*
 147  * USB Device Controller
 148  */
 149 static void tosa_udc_command(int cmd)
 150 {
 151         switch(cmd)     {
 152                 case PXA2XX_UDC_CMD_CONNECT:
 153                         set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 154                         break;
 155                 case PXA2XX_UDC_CMD_DISCONNECT:
 156                         reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 157                         break;
 158         }
 159 }
 160
 161 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 162         .udc_command            = tosa_udc_command,
 163         .gpio_vbus              = TOSA_GPIO_USB_IN,
 164         .gpio_vbus_inverted     = 1,
 165 };
 166
 167 /*
 168  * MMC/SD Device
 169  */
 170 static struct pxamci_platform_data tosa_mci_platform_data;
 171
 172 static int tosa_mci_init(struct device *dev, irq_handler_t tosa_detect_int, void *data)
 173 {
 174         int err;
 175
 176         /* setup GPIO for PXA25x MMC controller */
 177         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 178         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 179         pxa_gpio_mode(TOSA_GPIO_nSD_DETECT | GPIO_IN);
 180
 181         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 182
 183         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int,
 184                           IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 185                                 "MMC/SD card detect", data);
 186         if (err)
 187                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 188
 189         return err;
 190 }
 191
 192 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 193 {
 194         struct pxamci_platform_data* p_d = dev->platform_data;
 195
 196         if (( 1 << vdd) & p_d->ocr_mask) {
 197                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 198         } else {
 199                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 200         }
 201 }
 202
 203 static int tosa_mci_get_ro(struct device *dev)
 204 {
 205         return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP);
 206 }
 207
 208 static void tosa_mci_exit(struct device *dev, void *data)
 209 {
 210         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 211 }
 212
 213 static struct pxamci_platform_data tosa_mci_platform_data = {
 214         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 215         .init           = tosa_mci_init,
 216         .get_ro         = tosa_mci_get_ro,
 217         .setpower       = tosa_mci_setpower,
 218         .exit           = tosa_mci_exit,
 219 };
 220
 221 /*
 222  * Irda
 223  */
 224 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 225 {
 226         if (mode & IR_OFF) {
 227                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 228                 pxa_gpio_mode(GPIO47_STTXD|GPIO_DFLT_LOW);
 229                 pxa_gpio_mode(GPIO47_STTXD|GPIO_OUT);
 230         } else {
 231                 pxa_gpio_mode(GPIO47_STTXD_MD);
 232                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 233         }
 234 }
 235
 236 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 237         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 238         .transceiver_mode = tosa_irda_transceiver_mode,
 239 };
 240
 241 /*
 242  * Tosa Keyboard
 243  */
 244 static struct platform_device tosakbd_device = {
 245         .name           = "tosa-keyboard",
 246         .id             = -1,
 247 };
 248
 249 /*
 250  * Tosa LEDs
 251  */
 252 static struct platform_device tosaled_device = {
 253     .name   = "tosa-led",
 254     .id     = -1,
 255 };
 256
 257 static struct platform_device *devices[] __initdata = {
 258         &tosascoop_device,
 259         &tosascoop_jc_device,
 260         &tosakbd_device,
 261         &tosaled_device,
 262 };
 263
 264 static void tosa_poweroff(void)
 265 {
 266         RCSR = RCSR_HWR | RCSR_WDR | RCSR_SMR | RCSR_GPR;
 267
 268         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_OUT);
 269         GPSR(TOSA_GPIO_ON_RESET) = GPIO_bit(TOSA_GPIO_ON_RESET);
 270
 271         mdelay(1000);
 272         arm_machine_restart('h');
 273 }
 274
 275 static void tosa_restart(char mode)
 276 {
 277         /* Bootloader magic for a reboot */
 278         if((MSC0 & 0xffff0000) == 0x7ff00000)
 279                 MSC0 = (MSC0 & 0xffff) | 0x7ee00000;
 280
 281         tosa_poweroff();
 282 }
 283
 284 static void __init tosa_init(void)
 285 {
 286         pm_power_off = tosa_poweroff;
 287         arm_pm_restart = tosa_restart;
 288
 289         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN);
 290         pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN);
 291         pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN);
 292
 293         /* setup sleep mode values */
 294         PWER  = 0x00000002;
 295         PFER  = 0x00000000;
 296         PRER  = 0x00000002;
 297         PGSR0 = 0x00000000;
 298         PGSR1 = 0x00FF0002;
 299         PGSR2 = 0x00014000;
 300         PCFR |= PCFR_OPDE;
 301
 302         /* enable batt_fault */
 303         PMCR = 0x01;
 304
 305         pxa_set_mci_info(&tosa_mci_platform_data);
 306         pxa_set_udc_info(&udc_info);
 307         pxa_set_ficp_info(&tosa_ficp_platform_data);
 308         platform_scoop_config = &tosa_pcmcia_config;
 309
 310         platform_add_devices(devices, ARRAY_SIZE(devices));
 311 }
 312
 313 static void __init fixup_tosa(struct machine_desc *desc,
 314                 struct tag *tags, char **cmdline, struct meminfo *mi)
 315 {
 316         sharpsl_save_param();
 317         mi->nr_banks=1;
 318         mi->bank[0].start = 0xa0000000;
 319         mi->bank[0].node = 0;
 320         mi->bank[0].size = (64*1024*1024);
 321 }
 322
 323 MACHINE_START(TOSA, "SHARP Tosa")
 324         .phys_io        = 0x40000000,
 325         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 326         .fixup          = fixup_tosa,
 327         .map_io         = pxa_map_io,
 328         .init_irq       = pxa25x_init_irq,
 329         .init_machine   = tosa_init,
 330         .timer          = &pxa_timer,
 331 MACHINE_END