err.no Git - linux-2.6/blob - 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/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 static struct scoop_pcmcia_dev tosa_pcmcia_scoop[] = {
 102 {
 103         .dev        = &tosascoop_device.dev,
 104         .irq        = TOSA_IRQ_GPIO_CF_IRQ,
 105         .cd_irq     = TOSA_IRQ_GPIO_CF_CD,
 106         .cd_irq_str = "PCMCIA0 CD",
 107 },{
 108         .dev        = &tosascoop_jc_device.dev,
 109         .irq        = TOSA_IRQ_GPIO_JC_CF_IRQ,
 110         .cd_irq     = -1,
 111 },
 112 };
 113
 114 /*
 115  * USB Device Controller
 116  */
 117 static void tosa_udc_command(int cmd)
 118 {
 119         switch(cmd)     {
 120                 case PXA2XX_UDC_CMD_CONNECT:
 121                         set_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 122                         break;
 123                 case PXA2XX_UDC_CMD_DISCONNECT:
 124                         reset_scoop_gpio(&tosascoop_jc_device.dev,TOSA_SCOOP_JC_USB_PULLUP);
 125                         break;
 126         }
 127 }
 128
 129 static int tosa_udc_is_connected(void)
 130 {
 131         return ((GPLR(TOSA_GPIO_USB_IN) & GPIO_bit(TOSA_GPIO_USB_IN)) == 0);
 132 }
 133
 134
 135 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 136         .udc_command            = tosa_udc_command,
 137         .udc_is_connected       = tosa_udc_is_connected,
 138 };
 139
 140 /*
 141  * MMC/SD Device
 142  */
 143 static struct pxamci_platform_data tosa_mci_platform_data;
 144
 145 static int tosa_mci_init(struct device *dev, irqreturn_t (*tosa_detect_int)(int, void *, struct pt_regs *), void *data)
 146 {
 147         int err;
 148
 149         /* setup GPIO for PXA25x MMC controller */
 150         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 151         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 152         pxa_gpio_mode(TOSA_GPIO_nSD_DETECT | GPIO_IN);
 153
 154         tosa_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 155
 156         err = request_irq(TOSA_IRQ_GPIO_nSD_DETECT, tosa_detect_int, SA_INTERRUPT,
 157                                 "MMC/SD card detect", data);
 158         if (err) {
 159                 printk(KERN_ERR "tosa_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 160                 return -1;
 161         }
 162
 163         set_irq_type(TOSA_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
 164
 165         return 0;
 166 }
 167
 168 static void tosa_mci_setpower(struct device *dev, unsigned int vdd)
 169 {
 170         struct pxamci_platform_data* p_d = dev->platform_data;
 171
 172         if (( 1 << vdd) & p_d->ocr_mask) {
 173                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 174         } else {
 175                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_PWR_ON);
 176         }
 177 }
 178
 179 static int tosa_mci_get_ro(struct device *dev)
 180 {
 181         return (read_scoop_reg(&tosascoop_device.dev, SCOOP_GPWR)&TOSA_SCOOP_SD_WP);
 182 }
 183
 184 static void tosa_mci_exit(struct device *dev, void *data)
 185 {
 186         free_irq(TOSA_IRQ_GPIO_nSD_DETECT, data);
 187 }
 188
 189 static struct pxamci_platform_data tosa_mci_platform_data = {
 190         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 191         .init           = tosa_mci_init,
 192         .get_ro         = tosa_mci_get_ro,
 193         .setpower       = tosa_mci_setpower,
 194         .exit           = tosa_mci_exit,
 195 };
 196
 197 /*
 198  * Irda
 199  */
 200 static void tosa_irda_transceiver_mode(struct device *dev, int mode)
 201 {
 202         if (mode & IR_OFF) {
 203                 reset_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 204                 pxa_gpio_mode(GPIO47_STTXD|GPIO_DFLT_LOW);
 205                 pxa_gpio_mode(GPIO47_STTXD|GPIO_OUT);
 206         } else {
 207                 pxa_gpio_mode(GPIO47_STTXD_MD);
 208                 set_scoop_gpio(&tosascoop_device.dev,TOSA_SCOOP_IR_POWERDWN);
 209         }
 210 }
 211
 212 static struct pxaficp_platform_data tosa_ficp_platform_data = {
 213         .transceiver_cap  = IR_SIRMODE | IR_OFF,
 214         .transceiver_mode = tosa_irda_transceiver_mode,
 215 };
 216
 217 /*
 218  * Tosa Keyboard
 219  */
 220 static struct platform_device tosakbd_device = {
 221         .name           = "tosa-keyboard",
 222         .id             = -1,
 223 };
 224
 225 static struct platform_device *devices[] __initdata = {
 226         &tosascoop_device,
 227         &tosascoop_jc_device,
 228         &tosakbd_device,
 229 };
 230
 231 static void __init tosa_init(void)
 232 {
 233         pxa_gpio_mode(TOSA_GPIO_ON_RESET | GPIO_IN);
 234         pxa_gpio_mode(TOSA_GPIO_TC6393_INT | GPIO_IN);
 235         pxa_gpio_mode(TOSA_GPIO_USB_IN | GPIO_IN);
 236
 237         /* setup sleep mode values */
 238         PWER  = 0x00000002;
 239         PFER  = 0x00000000;
 240         PRER  = 0x00000002;
 241         PGSR0 = 0x00000000;
 242         PGSR1 = 0x00FF0002;
 243         PGSR2 = 0x00014000;
 244         PCFR |= PCFR_OPDE;
 245
 246         /* enable batt_fault */
 247         PMCR = 0x01;
 248
 249         pxa_set_mci_info(&tosa_mci_platform_data);
 250         pxa_set_udc_info(&udc_info);
 251         pxa_set_ficp_info(&tosa_ficp_platform_data);
 252         platform_add_devices(devices, ARRAY_SIZE(devices));
 253
 254         scoop_num = 2;
 255         scoop_devs = &tosa_pcmcia_scoop[0];
 256 }
 257
 258 static void __init fixup_tosa(struct machine_desc *desc,
 259                 struct tag *tags, char **cmdline, struct meminfo *mi)
 260 {
 261         sharpsl_save_param();
 262         mi->nr_banks=1;
 263         mi->bank[0].start = 0xa0000000;
 264         mi->bank[0].node = 0;
 265         mi->bank[0].size = (64*1024*1024);
 266 }
 267
 268 MACHINE_START(TOSA, "SHARP Tosa")
 269         .phys_ram       = 0xa0000000,
 270         .phys_io        = 0x40000000,
 271         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 272         .fixup          = fixup_tosa,
 273         .map_io         = pxa_map_io,
 274         .init_irq       = pxa_init_irq,
 275         .init_machine   = tosa_init,
 276         .timer          = &pxa_timer,
 277 MACHINE_END