arch/arm/mach-pxa/poodle.c

   1 /*
   2  * linux/arch/arm/mach-pxa/poodle.c
   3  *
   4  *  Support for the SHARP Poodle Board.
   5  *
   6  * Based on:
   7  *  linux/arch/arm/mach-pxa/lubbock.c Author:   Nicolas Pitre
   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  * Change Log
  14  *  12-Dec-2002 Sharp Corporation for Poodle
  15  *  John Lenz <lenz@cs.wisc.edu> updates to 2.6
  16  */
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/device.h>
  20 #include <linux/fb.h>
  21
  22 #include <asm/hardware.h>
  23 #include <asm/mach-types.h>
  24 #include <asm/irq.h>
  25 #include <asm/setup.h>
  26
  27 #include <asm/mach/arch.h>
  28 #include <asm/mach/map.h>
  29 #include <asm/mach/irq.h>
  30
  31 #include <asm/arch/pxa-regs.h>
  32 #include <asm/arch/irq.h>
  33 #include <asm/arch/mmc.h>
  34 #include <asm/arch/udc.h>
  35 #include <asm/arch/poodle.h>
  36 #include <asm/arch/pxafb.h>
  37
  38 #include <asm/hardware/scoop.h>
  39 #include <asm/hardware/locomo.h>
  40 #include <asm/mach/sharpsl_param.h>
  41
  42 #include "generic.h"
  43
  44 static struct resource poodle_scoop_resources[] = {
  45         [0] = {
  46                 .start          = 0x10800000,
  47                 .end            = 0x10800fff,
  48                 .flags          = IORESOURCE_MEM,
  49         },
  50 };
  51
  52 static struct scoop_config poodle_scoop_setup = {
  53         .io_dir         = POODLE_SCOOP_IO_DIR,
  54         .io_out         = POODLE_SCOOP_IO_OUT,
  55 };
  56
  57 struct platform_device poodle_scoop_device = {
  58         .name           = "sharp-scoop",
  59         .id             = -1,
  60         .dev            = {
  61                 .platform_data  = &poodle_scoop_setup,
  62         },
  63         .num_resources  = ARRAY_SIZE(poodle_scoop_resources),
  64         .resource       = poodle_scoop_resources,
  65 };
  66
  67 static struct scoop_pcmcia_dev poodle_pcmcia_scoop[] = {
  68 {
  69         .dev        = &poodle_scoop_device.dev,
  70         .irq        = POODLE_IRQ_GPIO_CF_IRQ,
  71         .cd_irq     = POODLE_IRQ_GPIO_CF_CD,
  72         .cd_irq_str = "PCMCIA0 CD",
  73 },
  74 };
  75
  76
  77 /* LoCoMo device */
  78 static struct resource locomo_resources[] = {
  79         [0] = {
  80                 .start          = 0x10000000,
  81                 .end            = 0x10001fff,
  82                 .flags          = IORESOURCE_MEM,
  83         },
  84         [1] = {
  85                 .start          = IRQ_GPIO(10),
  86                 .end            = IRQ_GPIO(10),
  87                 .flags          = IORESOURCE_IRQ,
  88         },
  89 };
  90
  91 static struct platform_device locomo_device = {
  92         .name           = "locomo",
  93         .id             = 0,
  94         .num_resources  = ARRAY_SIZE(locomo_resources),
  95         .resource       = locomo_resources,
  96 };
  97
  98
  99 /*
 100  * MMC/SD Device
 101  *
 102  * The card detect interrupt isn't debounced so we delay it by 250ms
 103  * to give the card a chance to fully insert/eject.
 104  */
 105 static struct pxamci_platform_data poodle_mci_platform_data;
 106
 107 static int poodle_mci_init(struct device *dev, irqreturn_t (*poodle_detect_int)(int, void *, struct pt_regs *), void *data)
 108 {
 109         int err;
 110
 111         /* setup GPIO for PXA25x MMC controller */
 112         pxa_gpio_mode(GPIO6_MMCCLK_MD);
 113         pxa_gpio_mode(GPIO8_MMCCS0_MD);
 114         pxa_gpio_mode(POODLE_GPIO_nSD_DETECT | GPIO_IN);
 115         pxa_gpio_mode(POODLE_GPIO_SD_PWR | GPIO_OUT);
 116
 117         poodle_mci_platform_data.detect_delay = msecs_to_jiffies(250);
 118
 119         err = request_irq(POODLE_IRQ_GPIO_nSD_DETECT, poodle_detect_int, SA_INTERRUPT,
 120                              "MMC card detect", data);
 121         if (err) {
 122                 printk(KERN_ERR "poodle_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
 123                 return -1;
 124         }
 125
 126         set_irq_type(POODLE_IRQ_GPIO_nSD_DETECT, IRQT_BOTHEDGE);
 127
 128         return 0;
 129 }
 130
 131 static void poodle_mci_setpower(struct device *dev, unsigned int vdd)
 132 {
 133         struct pxamci_platform_data* p_d = dev->platform_data;
 134
 135         if (( 1 << vdd) & p_d->ocr_mask)
 136                 GPSR1 = GPIO_bit(POODLE_GPIO_SD_PWR);
 137         else
 138                 GPCR1 = GPIO_bit(POODLE_GPIO_SD_PWR);
 139 }
 140
 141 static void poodle_mci_exit(struct device *dev, void *data)
 142 {
 143         free_irq(POODLE_IRQ_GPIO_nSD_DETECT, data);
 144 }
 145
 146 static struct pxamci_platform_data poodle_mci_platform_data = {
 147         .ocr_mask       = MMC_VDD_32_33|MMC_VDD_33_34,
 148         .init           = poodle_mci_init,
 149         .setpower       = poodle_mci_setpower,
 150         .exit           = poodle_mci_exit,
 151 };
 152
 153
 154 /*
 155  * USB Device Controller
 156  */
 157 static void poodle_udc_command(int cmd)
 158 {
 159         switch(cmd)     {
 160         case PXA2XX_UDC_CMD_CONNECT:
 161                 GPSR(POODLE_GPIO_USB_PULLUP) = GPIO_bit(POODLE_GPIO_USB_PULLUP);
 162                 break;
 163         case PXA2XX_UDC_CMD_DISCONNECT:
 164                 GPCR(POODLE_GPIO_USB_PULLUP) = GPIO_bit(POODLE_GPIO_USB_PULLUP);
 165                 break;
 166         }
 167 }
 168
 169 static struct pxa2xx_udc_mach_info udc_info __initdata = {
 170         /* no connect GPIO; poodle can't tell connection status */
 171         .udc_command            = poodle_udc_command,
 172 };
 173
 174
 175 /* PXAFB device */
 176 static struct pxafb_mach_info poodle_fb_info __initdata = {
 177         .pixclock       = 144700,
 178
 179         .xres           = 320,
 180         .yres           = 240,
 181         .bpp            = 16,
 182
 183         .hsync_len      = 7,
 184         .left_margin    = 11,
 185         .right_margin   = 30,
 186
 187         .vsync_len      = 2,
 188         .upper_margin   = 2,
 189         .lower_margin   = 0,
 190         .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 191
 192         .lccr0          = LCCR0_Act | LCCR0_Sngl | LCCR0_Color,
 193         .lccr3          = 0,
 194
 195         .pxafb_backlight_power  = NULL,
 196         .pxafb_lcd_power        = NULL,
 197 };
 198
 199 static struct platform_device *devices[] __initdata = {
 200         &locomo_device,
 201         &poodle_scoop_device,
 202 };
 203
 204 static void __init poodle_init(void)
 205 {
 206         int ret = 0;
 207
 208         /* setup sleep mode values */
 209         PWER  = 0x00000002;
 210         PFER  = 0x00000000;
 211         PRER  = 0x00000002;
 212         PGSR0 = 0x00008000;
 213         PGSR1 = 0x003F0202;
 214         PGSR2 = 0x0001C000;
 215         PCFR |= PCFR_OPDE;
 216
 217         /* cpu initialize */
 218         /* Pgsr Register */
 219         PGSR0 = 0x0146dd80;
 220         PGSR1 = 0x03bf0890;
 221         PGSR2 = 0x0001c000;
 222
 223         /* Alternate Register */
 224         GAFR0_L = 0x01001000;
 225         GAFR0_U = 0x591a8010;
 226         GAFR1_L = 0x900a8451;
 227         GAFR1_U = 0xaaa5aaaa;
 228         GAFR2_L = 0x8aaaaaaa;
 229         GAFR2_U = 0x00000002;
 230
 231         /* Direction Register */
 232         GPDR0 = 0xd3f0904c;
 233         GPDR1 = 0xfcffb7d3;
 234         GPDR2 = 0x0001ffff;
 235
 236         /* Output Register */
 237         GPCR0 = 0x00000000;
 238         GPCR1 = 0x00000000;
 239         GPCR2 = 0x00000000;
 240
 241         GPSR0 = 0x00400000;
 242         GPSR1 = 0x00000000;
 243         GPSR2 = 0x00000000;
 244
 245         set_pxa_fb_info(&poodle_fb_info);
 246         pxa_gpio_mode(POODLE_GPIO_USB_PULLUP | GPIO_OUT);
 247         pxa_set_udc_info(&udc_info);
 248         pxa_set_mci_info(&poodle_mci_platform_data);
 249
 250         scoop_num = 1;
 251         scoop_devs = &poodle_pcmcia_scoop[0];
 252
 253         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 254         if (ret) {
 255                 printk(KERN_WARNING "poodle: Unable to register LoCoMo device\n");
 256         }
 257 }
 258
 259 static void __init fixup_poodle(struct machine_desc *desc,
 260                 struct tag *tags, char **cmdline, struct meminfo *mi)
 261 {
 262         sharpsl_save_param();
 263 }
 264
 265 MACHINE_START(POODLE, "SHARP Poodle")
 266         .phys_ram       = 0xa0000000,
 267         .phys_io        = 0x40000000,
 268         .io_pg_offst    = (io_p2v(0x40000000) >> 18) & 0xfffc,
 269         .fixup          = fixup_poodle,
 270         .map_io         = pxa_map_io,
 271         .init_irq       = pxa_init_irq,
 272         .timer          = &pxa_timer,
 273         .init_machine   = poodle_init,
 274 MACHINE_END