linux/arch/arm/mach-sa1100/collie.c
<<
>>
Prefs
   1/*
   2 * linux/arch/arm/mach-sa1100/collie.c
   3 *
   4 * May be copied or modified under the terms of the GNU General Public
   5 * License.  See linux/COPYING for more information.
   6 *
   7 * This file contains all Collie-specific tweaks.
   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 * ChangeLog:
  14 *  2006 Pavel Machek <pavel@ucw.cz>
  15 *  03-06-2004 John Lenz <lenz@cs.wisc.edu>
  16 *  06-04-2002 Chris Larson <kergoth@digitalnemesis.net>
  17 *  04-16-2001 Lineo Japan,Inc. ...
  18 */
  19
  20#include <linux/init.h>
  21#include <linux/kernel.h>
  22#include <linux/tty.h>
  23#include <linux/delay.h>
  24#include <linux/platform_data/sa11x0-serial.h>
  25#include <linux/platform_device.h>
  26#include <linux/mfd/ucb1x00.h>
  27#include <linux/mtd/mtd.h>
  28#include <linux/mtd/partitions.h>
  29#include <linux/timer.h>
  30#include <linux/gpio_keys.h>
  31#include <linux/input.h>
  32#include <linux/gpio.h>
  33#include <linux/gpio/machine.h>
  34#include <linux/power/gpio-charger.h>
  35
  36#include <video/sa1100fb.h>
  37
  38#include <mach/hardware.h>
  39#include <asm/mach-types.h>
  40#include <asm/page.h>
  41#include <asm/setup.h>
  42#include <mach/collie.h>
  43
  44#include <asm/mach/arch.h>
  45#include <asm/mach/flash.h>
  46#include <asm/mach/map.h>
  47#include <linux/platform_data/irda-sa11x0.h>
  48
  49#include <asm/hardware/scoop.h>
  50#include <asm/mach/sharpsl_param.h>
  51#include <asm/hardware/locomo.h>
  52#include <linux/platform_data/mfd-mcp-sa11x0.h>
  53#include <mach/irqs.h>
  54
  55#include "generic.h"
  56
  57static struct resource collie_scoop_resources[] = {
  58        [0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
  59};
  60
  61static struct scoop_config collie_scoop_setup = {
  62        .io_dir         = COLLIE_SCOOP_IO_DIR,
  63        .io_out         = COLLIE_SCOOP_IO_OUT,
  64        .gpio_base      = COLLIE_SCOOP_GPIO_BASE,
  65};
  66
  67struct platform_device colliescoop_device = {
  68        .name           = "sharp-scoop",
  69        .id             = -1,
  70        .dev            = {
  71                .platform_data  = &collie_scoop_setup,
  72        },
  73        .num_resources  = ARRAY_SIZE(collie_scoop_resources),
  74        .resource       = collie_scoop_resources,
  75};
  76
  77static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
  78        {
  79        .dev            = &colliescoop_device.dev,
  80        .irq            = COLLIE_IRQ_GPIO_CF_IRQ,
  81        .cd_irq         = COLLIE_IRQ_GPIO_CF_CD,
  82        .cd_irq_str     = "PCMCIA0 CD",
  83        },
  84};
  85
  86static struct scoop_pcmcia_config collie_pcmcia_config = {
  87        .devs           = &collie_pcmcia_scoop[0],
  88        .num_devs       = 1,
  89};
  90
  91static struct ucb1x00_plat_data collie_ucb1x00_data = {
  92        .gpio_base      = COLLIE_TC35143_GPIO_BASE,
  93};
  94
  95static struct mcp_plat_data collie_mcp_data = {
  96        .mccr0          = MCCR0_ADM | MCCR0_ExtClk,
  97        .sclk_rate      = 9216000,
  98        .codec_pdata    = &collie_ucb1x00_data,
  99};
 100
 101/* Battery management GPIOs */
 102static struct gpiod_lookup_table collie_battery_gpiod_table = {
 103        /* the MCP codec mcp0 has the ucb1x00 as attached device */
 104        .dev_id = "ucb1x00",
 105        .table = {
 106                /* This is found on the main GPIO on the SA1100 */
 107                GPIO_LOOKUP("gpio", COLLIE_GPIO_CO,
 108                            "main battery full", GPIO_ACTIVE_HIGH),
 109                GPIO_LOOKUP("gpio", COLLIE_GPIO_MAIN_BAT_LOW,
 110                            "main battery low", GPIO_ACTIVE_HIGH),
 111                /*
 112                 * This is GPIO 0 on the Scoop expander, which is registered
 113                 * from common/scoop.c with this gpio chip label.
 114                 */
 115                GPIO_LOOKUP("sharp-scoop", 0,
 116                            "main charge on", GPIO_ACTIVE_HIGH),
 117                { },
 118        },
 119};
 120
 121static int collie_ir_startup(struct device *dev)
 122{
 123        int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA");
 124        if (rc)
 125                return rc;
 126        rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1);
 127
 128        if (!rc)
 129                return 0;
 130
 131        gpio_free(COLLIE_GPIO_IR_ON);
 132        return rc;
 133}
 134
 135static void collie_ir_shutdown(struct device *dev)
 136{
 137        gpio_free(COLLIE_GPIO_IR_ON);
 138}
 139
 140static int collie_ir_set_power(struct device *dev, unsigned int state)
 141{
 142        gpio_set_value(COLLIE_GPIO_IR_ON, !state);
 143        return 0;
 144}
 145
 146static struct irda_platform_data collie_ir_data = {
 147        .startup = collie_ir_startup,
 148        .shutdown = collie_ir_shutdown,
 149        .set_power = collie_ir_set_power,
 150};
 151
 152/*
 153 * Collie AC IN
 154 */
 155static struct gpiod_lookup_table collie_power_gpiod_table = {
 156        .dev_id = "gpio-charger",
 157        .table = {
 158                GPIO_LOOKUP("gpio", COLLIE_GPIO_AC_IN,
 159                            NULL, GPIO_ACTIVE_HIGH),
 160                { },
 161        },
 162};
 163
 164static char *collie_ac_supplied_to[] = {
 165        "main-battery",
 166        "backup-battery",
 167};
 168
 169static struct gpio_charger_platform_data collie_power_data = {
 170        .name                   = "charger",
 171        .type                   = POWER_SUPPLY_TYPE_MAINS,
 172        .supplied_to            = collie_ac_supplied_to,
 173        .num_supplicants        = ARRAY_SIZE(collie_ac_supplied_to),
 174};
 175
 176static struct platform_device collie_power_device = {
 177        .name                   = "gpio-charger",
 178        .id                     = -1,
 179        .dev.platform_data      = &collie_power_data,
 180};
 181
 182#ifdef CONFIG_SHARP_LOCOMO
 183/*
 184 * low-level UART features.
 185 */
 186struct platform_device collie_locomo_device;
 187
 188static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
 189{
 190        if (mctrl & TIOCM_RTS)
 191                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
 192        else
 193                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
 194
 195        if (mctrl & TIOCM_DTR)
 196                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
 197        else
 198                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
 199}
 200
 201static u_int collie_uart_get_mctrl(struct uart_port *port)
 202{
 203        int ret = TIOCM_CD;
 204        unsigned int r;
 205
 206        r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
 207        if (r == -ENODEV)
 208                return ret;
 209        if (r & LOCOMO_GPIO_CTS)
 210                ret |= TIOCM_CTS;
 211        if (r & LOCOMO_GPIO_DSR)
 212                ret |= TIOCM_DSR;
 213
 214        return ret;
 215}
 216
 217static struct sa1100_port_fns collie_port_fns __initdata = {
 218        .set_mctrl      = collie_uart_set_mctrl,
 219        .get_mctrl      = collie_uart_get_mctrl,
 220};
 221
 222static int collie_uart_probe(struct locomo_dev *dev)
 223{
 224        return 0;
 225}
 226
 227static struct locomo_driver collie_uart_driver = {
 228        .drv = {
 229                .name = "collie_uart",
 230        },
 231        .devid  = LOCOMO_DEVID_UART,
 232        .probe  = collie_uart_probe,
 233};
 234
 235static int __init collie_uart_init(void)
 236{
 237        return locomo_driver_register(&collie_uart_driver);
 238}
 239device_initcall(collie_uart_init);
 240
 241#endif
 242
 243
 244static struct resource locomo_resources[] = {
 245        [0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
 246        [1] = DEFINE_RES_IRQ(IRQ_GPIO25),
 247};
 248
 249static struct locomo_platform_data locomo_info = {
 250        .irq_base       = IRQ_BOARD_START,
 251};
 252
 253struct platform_device collie_locomo_device = {
 254        .name           = "locomo",
 255        .id             = 0,
 256        .dev            = {
 257                .platform_data  = &locomo_info,
 258        },
 259        .num_resources  = ARRAY_SIZE(locomo_resources),
 260        .resource       = locomo_resources,
 261};
 262
 263static struct gpio_keys_button collie_gpio_keys[] = {
 264        {
 265                .type   = EV_PWR,
 266                .code   = KEY_RESERVED,
 267                .gpio   = COLLIE_GPIO_ON_KEY,
 268                .desc   = "On key",
 269                .wakeup = 1,
 270                .active_low = 1,
 271        },
 272        {
 273                .type   = EV_PWR,
 274                .code   = KEY_WAKEUP,
 275                .gpio   = COLLIE_GPIO_WAKEUP,
 276                .desc   = "Sync",
 277                .wakeup = 1,
 278                .active_low = 1,
 279        },
 280};
 281
 282static struct gpio_keys_platform_data collie_gpio_keys_data = {
 283        .buttons        = collie_gpio_keys,
 284        .nbuttons       = ARRAY_SIZE(collie_gpio_keys),
 285};
 286
 287static struct platform_device collie_gpio_keys_device = {
 288        .name   = "gpio-keys",
 289        .id     = -1,
 290        .dev    = {
 291                .platform_data = &collie_gpio_keys_data,
 292        },
 293};
 294
 295static struct platform_device *devices[] __initdata = {
 296        &collie_locomo_device,
 297        &colliescoop_device,
 298        &collie_power_device,
 299        &collie_gpio_keys_device,
 300};
 301
 302static struct mtd_partition collie_partitions[] = {
 303        {
 304                .name           = "bootloader",
 305                .offset         = 0,
 306                .size           = 0x000C0000,
 307                .mask_flags     = MTD_WRITEABLE
 308        }, {
 309                .name           = "kernel",
 310                .offset         = MTDPART_OFS_APPEND,
 311                .size           = 0x00100000,
 312        }, {
 313                .name           = "rootfs",
 314                .offset         = MTDPART_OFS_APPEND,
 315                .size           = 0x00e20000,
 316        }, {
 317                .name           = "bootblock",
 318                .offset         = MTDPART_OFS_APPEND,
 319                .size           = 0x00020000,
 320                .mask_flags     = MTD_WRITEABLE
 321        }
 322};
 323
 324static int collie_flash_init(void)
 325{
 326        int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
 327        if (rc)
 328                return rc;
 329
 330        rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
 331        if (rc)
 332                gpio_free(COLLIE_GPIO_VPEN);
 333
 334        return rc;
 335}
 336
 337static void collie_set_vpp(int vpp)
 338{
 339        gpio_set_value(COLLIE_GPIO_VPEN, vpp);
 340}
 341
 342static void collie_flash_exit(void)
 343{
 344        gpio_free(COLLIE_GPIO_VPEN);
 345}
 346
 347static struct flash_platform_data collie_flash_data = {
 348        .map_name       = "cfi_probe",
 349        .init           = collie_flash_init,
 350        .set_vpp        = collie_set_vpp,
 351        .exit           = collie_flash_exit,
 352        .parts          = collie_partitions,
 353        .nr_parts       = ARRAY_SIZE(collie_partitions),
 354};
 355
 356static struct resource collie_flash_resources[] = {
 357        DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
 358};
 359
 360static struct sa1100fb_mach_info collie_lcd_info = {
 361        .pixclock       = 171521,       .bpp            = 16,
 362        .xres           = 320,          .yres           = 240,
 363
 364        .hsync_len      = 5,            .vsync_len      = 1,
 365        .left_margin    = 11,           .upper_margin   = 2,
 366        .right_margin   = 30,           .lower_margin   = 0,
 367
 368        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 369
 370        .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
 371        .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
 372
 373#ifdef CONFIG_BACKLIGHT_LOCOMO
 374        .lcd_power      = locomolcd_power
 375#endif
 376};
 377
 378static void __init collie_init(void)
 379{
 380        int ret = 0;
 381
 382        /* cpu initialize */
 383        GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
 384                GPIO_MCP_CLK | GPIO_32_768kHz;
 385
 386        GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
 387                GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
 388                GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
 389                _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
 390                _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
 391
 392        PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
 393                PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
 394                PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
 395
 396        PWER = 0;
 397
 398        PGSR = _COLLIE_GPIO_nREMOCON_ON;
 399
 400        PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
 401
 402        PCFR = PCFR_OPDE;
 403
 404        GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
 405
 406        sa11x0_ppc_configure_mcp();
 407
 408
 409        platform_scoop_config = &collie_pcmcia_config;
 410
 411        gpiod_add_lookup_table(&collie_power_gpiod_table);
 412        gpiod_add_lookup_table(&collie_battery_gpiod_table);
 413
 414        ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 415        if (ret) {
 416                printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
 417        }
 418
 419        sa11x0_register_lcd(&collie_lcd_info);
 420        sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
 421                            ARRAY_SIZE(collie_flash_resources));
 422        sa11x0_register_mcp(&collie_mcp_data);
 423        sa11x0_register_irda(&collie_ir_data);
 424
 425        sharpsl_save_param();
 426}
 427
 428static struct map_desc collie_io_desc[] __initdata = {
 429        {       /* 32M main flash (cs0) */
 430                .virtual        = 0xe8000000,
 431                .pfn            = __phys_to_pfn(0x00000000),
 432                .length         = 0x02000000,
 433                .type           = MT_DEVICE
 434        }, {    /* 32M boot flash (cs1) */
 435                .virtual        = 0xea000000,
 436                .pfn            = __phys_to_pfn(0x08000000),
 437                .length         = 0x02000000,
 438                .type           = MT_DEVICE
 439        }
 440};
 441
 442static void __init collie_map_io(void)
 443{
 444        sa1100_map_io();
 445        iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
 446
 447#ifdef CONFIG_SHARP_LOCOMO
 448        sa1100_register_uart_fns(&collie_port_fns);
 449#endif
 450        sa1100_register_uart(0, 3);
 451        sa1100_register_uart(1, 1);
 452}
 453
 454MACHINE_START(COLLIE, "Sharp-Collie")
 455        .map_io         = collie_map_io,
 456        .nr_irqs        = SA1100_NR_IRQS,
 457        .init_irq       = sa1100_init_irq,
 458        .init_time      = sa1100_timer_init,
 459        .init_machine   = collie_init,
 460        .init_late      = sa11x0_init_late,
 461        .restart        = sa11x0_restart,
 462MACHINE_END
 463