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