linux/arch/arm/mach-sa1100/collie.c
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   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.h>
  31#include <linux/pda_power.h>
  32
  33#include <video/sa1100fb.h>
  34
  35#include <mach/hardware.h>
  36#include <asm/mach-types.h>
  37#include <asm/page.h>
  38#include <asm/setup.h>
  39#include <mach/collie.h>
  40
  41#include <asm/mach/arch.h>
  42#include <asm/mach/flash.h>
  43#include <asm/mach/map.h>
  44
  45#include <asm/hardware/scoop.h>
  46#include <asm/mach/sharpsl_param.h>
  47#include <asm/hardware/locomo.h>
  48#include <linux/platform_data/mfd-mcp-sa11x0.h>
  49#include <mach/irqs.h>
  50
  51#include "generic.h"
  52
  53static struct resource collie_scoop_resources[] = {
  54        [0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
  55};
  56
  57static struct scoop_config collie_scoop_setup = {
  58        .io_dir         = COLLIE_SCOOP_IO_DIR,
  59        .io_out         = COLLIE_SCOOP_IO_OUT,
  60        .gpio_base      = COLLIE_SCOOP_GPIO_BASE,
  61};
  62
  63struct platform_device colliescoop_device = {
  64        .name           = "sharp-scoop",
  65        .id             = -1,
  66        .dev            = {
  67                .platform_data  = &collie_scoop_setup,
  68        },
  69        .num_resources  = ARRAY_SIZE(collie_scoop_resources),
  70        .resource       = collie_scoop_resources,
  71};
  72
  73static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
  74        {
  75        .dev            = &colliescoop_device.dev,
  76        .irq            = COLLIE_IRQ_GPIO_CF_IRQ,
  77        .cd_irq         = COLLIE_IRQ_GPIO_CF_CD,
  78        .cd_irq_str     = "PCMCIA0 CD",
  79        },
  80};
  81
  82static struct scoop_pcmcia_config collie_pcmcia_config = {
  83        .devs           = &collie_pcmcia_scoop[0],
  84        .num_devs       = 1,
  85};
  86
  87static struct ucb1x00_plat_data collie_ucb1x00_data = {
  88        .gpio_base      = COLLIE_TC35143_GPIO_BASE,
  89};
  90
  91static struct mcp_plat_data collie_mcp_data = {
  92        .mccr0          = MCCR0_ADM | MCCR0_ExtClk,
  93        .sclk_rate      = 9216000,
  94        .codec_pdata    = &collie_ucb1x00_data,
  95};
  96
  97/*
  98 * Collie AC IN
  99 */
 100static int collie_power_init(struct device *dev)
 101{
 102        int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
 103        if (ret)
 104                goto err_gpio_req;
 105
 106        ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
 107        if (ret)
 108                goto err_gpio_in;
 109
 110        return 0;
 111
 112err_gpio_in:
 113        gpio_free(COLLIE_GPIO_AC_IN);
 114err_gpio_req:
 115        return ret;
 116}
 117
 118static void collie_power_exit(struct device *dev)
 119{
 120        gpio_free(COLLIE_GPIO_AC_IN);
 121}
 122
 123static int collie_power_ac_online(void)
 124{
 125        return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
 126}
 127
 128static char *collie_ac_supplied_to[] = {
 129        "main-battery",
 130        "backup-battery",
 131};
 132
 133static struct pda_power_pdata collie_power_data = {
 134        .init                   = collie_power_init,
 135        .is_ac_online           = collie_power_ac_online,
 136        .exit                   = collie_power_exit,
 137        .supplied_to            = collie_ac_supplied_to,
 138        .num_supplicants        = ARRAY_SIZE(collie_ac_supplied_to),
 139};
 140
 141static struct resource collie_power_resource[] = {
 142        {
 143                .name           = "ac",
 144                .flags          = IORESOURCE_IRQ |
 145                                  IORESOURCE_IRQ_HIGHEDGE |
 146                                  IORESOURCE_IRQ_LOWEDGE,
 147        },
 148};
 149
 150static struct platform_device collie_power_device = {
 151        .name                   = "pda-power",
 152        .id                     = -1,
 153        .dev.platform_data      = &collie_power_data,
 154        .resource               = collie_power_resource,
 155        .num_resources          = ARRAY_SIZE(collie_power_resource),
 156};
 157
 158#ifdef CONFIG_SHARP_LOCOMO
 159/*
 160 * low-level UART features.
 161 */
 162struct platform_device collie_locomo_device;
 163
 164static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
 165{
 166        if (mctrl & TIOCM_RTS)
 167                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
 168        else
 169                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
 170
 171        if (mctrl & TIOCM_DTR)
 172                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
 173        else
 174                locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
 175}
 176
 177static u_int collie_uart_get_mctrl(struct uart_port *port)
 178{
 179        int ret = TIOCM_CD;
 180        unsigned int r;
 181
 182        r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
 183        if (r == -ENODEV)
 184                return ret;
 185        if (r & LOCOMO_GPIO_CTS)
 186                ret |= TIOCM_CTS;
 187        if (r & LOCOMO_GPIO_DSR)
 188                ret |= TIOCM_DSR;
 189
 190        return ret;
 191}
 192
 193static struct sa1100_port_fns collie_port_fns __initdata = {
 194        .set_mctrl      = collie_uart_set_mctrl,
 195        .get_mctrl      = collie_uart_get_mctrl,
 196};
 197
 198static int collie_uart_probe(struct locomo_dev *dev)
 199{
 200        return 0;
 201}
 202
 203static int collie_uart_remove(struct locomo_dev *dev)
 204{
 205        return 0;
 206}
 207
 208static struct locomo_driver collie_uart_driver = {
 209        .drv = {
 210                .name = "collie_uart",
 211        },
 212        .devid  = LOCOMO_DEVID_UART,
 213        .probe  = collie_uart_probe,
 214        .remove = collie_uart_remove,
 215};
 216
 217static int __init collie_uart_init(void)
 218{
 219        return locomo_driver_register(&collie_uart_driver);
 220}
 221device_initcall(collie_uart_init);
 222
 223#endif
 224
 225
 226static struct resource locomo_resources[] = {
 227        [0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
 228        [1] = DEFINE_RES_IRQ(IRQ_GPIO25),
 229};
 230
 231static struct locomo_platform_data locomo_info = {
 232        .irq_base       = IRQ_BOARD_START,
 233};
 234
 235struct platform_device collie_locomo_device = {
 236        .name           = "locomo",
 237        .id             = 0,
 238        .dev            = {
 239                .platform_data  = &locomo_info,
 240        },
 241        .num_resources  = ARRAY_SIZE(locomo_resources),
 242        .resource       = locomo_resources,
 243};
 244
 245static struct platform_device *devices[] __initdata = {
 246        &collie_locomo_device,
 247        &colliescoop_device,
 248        &collie_power_device,
 249};
 250
 251static struct mtd_partition collie_partitions[] = {
 252        {
 253                .name           = "bootloader",
 254                .offset         = 0,
 255                .size           = 0x000C0000,
 256                .mask_flags     = MTD_WRITEABLE
 257        }, {
 258                .name           = "kernel",
 259                .offset         = MTDPART_OFS_APPEND,
 260                .size           = 0x00100000,
 261        }, {
 262                .name           = "rootfs",
 263                .offset         = MTDPART_OFS_APPEND,
 264                .size           = 0x00e20000,
 265        }
 266};
 267
 268static int collie_flash_init(void)
 269{
 270        int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
 271        if (rc)
 272                return rc;
 273
 274        rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
 275        if (rc)
 276                gpio_free(COLLIE_GPIO_VPEN);
 277
 278        return rc;
 279}
 280
 281static void collie_set_vpp(int vpp)
 282{
 283        gpio_set_value(COLLIE_GPIO_VPEN, vpp);
 284}
 285
 286static void collie_flash_exit(void)
 287{
 288        gpio_free(COLLIE_GPIO_VPEN);
 289}
 290
 291static struct flash_platform_data collie_flash_data = {
 292        .map_name       = "jedec_probe",
 293        .init           = collie_flash_init,
 294        .set_vpp        = collie_set_vpp,
 295        .exit           = collie_flash_exit,
 296        .parts          = collie_partitions,
 297        .nr_parts       = ARRAY_SIZE(collie_partitions),
 298};
 299
 300static struct resource collie_flash_resources[] = {
 301        DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
 302};
 303
 304static struct sa1100fb_mach_info collie_lcd_info = {
 305        .pixclock       = 171521,       .bpp            = 16,
 306        .xres           = 320,          .yres           = 240,
 307
 308        .hsync_len      = 5,            .vsync_len      = 1,
 309        .left_margin    = 11,           .upper_margin   = 2,
 310        .right_margin   = 30,           .lower_margin   = 0,
 311
 312        .sync           = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,
 313
 314        .lccr0          = LCCR0_Color | LCCR0_Sngl | LCCR0_Act,
 315        .lccr3          = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2),
 316
 317#ifdef CONFIG_BACKLIGHT_LOCOMO
 318        .lcd_power      = locomolcd_power
 319#endif
 320};
 321
 322static void __init collie_init(void)
 323{
 324        int ret = 0;
 325
 326        /* cpu initialize */
 327        GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
 328                GPIO_MCP_CLK | GPIO_32_768kHz;
 329
 330        GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
 331                GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
 332                GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
 333                _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
 334                _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
 335
 336        PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
 337                PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
 338                PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
 339
 340        PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
 341                _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
 342
 343        PGSR = _COLLIE_GPIO_nREMOCON_ON;
 344
 345        PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
 346
 347        PCFR = PCFR_OPDE;
 348
 349        GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
 350
 351        collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
 352        collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
 353
 354        sa11x0_ppc_configure_mcp();
 355
 356
 357        platform_scoop_config = &collie_pcmcia_config;
 358
 359        ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 360        if (ret) {
 361                printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
 362        }
 363
 364        sa11x0_register_lcd(&collie_lcd_info);
 365        sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
 366                            ARRAY_SIZE(collie_flash_resources));
 367        sa11x0_register_mcp(&collie_mcp_data);
 368
 369        sharpsl_save_param();
 370}
 371
 372static struct map_desc collie_io_desc[] __initdata = {
 373        {       /* 32M main flash (cs0) */
 374                .virtual        = 0xe8000000,
 375                .pfn            = __phys_to_pfn(0x00000000),
 376                .length         = 0x02000000,
 377                .type           = MT_DEVICE
 378        }, {    /* 32M boot flash (cs1) */
 379                .virtual        = 0xea000000,
 380                .pfn            = __phys_to_pfn(0x08000000),
 381                .length         = 0x02000000,
 382                .type           = MT_DEVICE
 383        }
 384};
 385
 386static void __init collie_map_io(void)
 387{
 388        sa1100_map_io();
 389        iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
 390
 391#ifdef CONFIG_SHARP_LOCOMO
 392        sa1100_register_uart_fns(&collie_port_fns);
 393#endif
 394        sa1100_register_uart(0, 3);
 395        sa1100_register_uart(1, 1);
 396}
 397
 398MACHINE_START(COLLIE, "Sharp-Collie")
 399        .map_io         = collie_map_io,
 400        .nr_irqs        = SA1100_NR_IRQS,
 401        .init_irq       = sa1100_init_irq,
 402        .init_time      = sa1100_timer_init,
 403        .init_machine   = collie_init,
 404        .init_late      = sa11x0_init_late,
 405        .restart        = sa11x0_restart,
 406MACHINE_END
 407