arch/arm/mach-sa1100/collie.c

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