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_device.h>
  25 #include <linux/mtd/mtd.h>
  26 #include <linux/mtd/partitions.h>
  27 #include <linux/timer.h>
  28 #include <linux/gpio.h>
  29 #include <linux/pda_power.h>
  30
  31 #include <mach/hardware.h>
  32 #include <asm/mach-types.h>
  33 #include <asm/irq.h>
  34 #include <asm/page.h>
  35 #include <asm/setup.h>
  36 #include <mach/collie.h>
  37
  38 #include <asm/mach/arch.h>
  39 #include <asm/mach/flash.h>
  40 #include <asm/mach/map.h>
  41 #include <asm/mach/serial_sa1100.h>
  42
  43 #include <asm/hardware/scoop.h>
  44 #include <asm/mach/sharpsl_param.h>
  45 #include <asm/hardware/locomo.h>
  46 #include <mach/mcp.h>
  47
  48 #include "generic.h"
  49
  50 static struct resource collie_scoop_resources[] = {
  51         [0] = {
  52                 .start          = 0x40800000,
  53                 .end            = 0x40800fff,
  54                 .flags          = IORESOURCE_MEM,
  55         },
  56 };
  57
  58 static struct scoop_config collie_scoop_setup = {
  59         .io_dir         = COLLIE_SCOOP_IO_DIR,
  60         .io_out         = COLLIE_SCOOP_IO_OUT,
  61         .gpio_base      = COLLIE_SCOOP_GPIO_BASE,
  62 };
  63
  64 struct platform_device colliescoop_device = {
  65         .name           = "sharp-scoop",
  66         .id             = -1,
  67         .dev            = {
  68                 .platform_data  = &collie_scoop_setup,
  69         },
  70         .num_resources  = ARRAY_SIZE(collie_scoop_resources),
  71         .resource       = collie_scoop_resources,
  72 };
  73
  74 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = {
  75         {
  76         .dev            = &colliescoop_device.dev,
  77         .irq            = COLLIE_IRQ_GPIO_CF_IRQ,
  78         .cd_irq         = COLLIE_IRQ_GPIO_CF_CD,
  79         .cd_irq_str     = "PCMCIA0 CD",
  80         },
  81 };
  82
  83 static struct scoop_pcmcia_config collie_pcmcia_config = {
  84         .devs           = &collie_pcmcia_scoop[0],
  85         .num_devs       = 1,
  86 };
  87
  88 static struct mcp_plat_data collie_mcp_data = {
  89         .mccr0          = MCCR0_ADM | MCCR0_ExtClk,
  90         .sclk_rate      = 9216000,
  91         .gpio_base      = COLLIE_TC35143_GPIO_BASE,
  92 };
  93
  94 /*
  95  * Collie AC IN
  96  */
  97 static int collie_power_init(struct device *dev)
  98 {
  99         int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in");
 100         if (ret)
 101                 goto err_gpio_req;
 102
 103         ret = gpio_direction_input(COLLIE_GPIO_AC_IN);
 104         if (ret)
 105                 goto err_gpio_in;
 106
 107         return 0;
 108
 109 err_gpio_in:
 110         gpio_free(COLLIE_GPIO_AC_IN);
 111 err_gpio_req:
 112         return ret;
 113 }
 114
 115 static void collie_power_exit(struct device *dev)
 116 {
 117         gpio_free(COLLIE_GPIO_AC_IN);
 118 }
 119
 120 static int collie_power_ac_online(void)
 121 {
 122         return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
 123 }
 124
 125 static char *collie_ac_supplied_to[] = {
 126         "main-battery",
 127         "backup-battery",
 128 };
 129
 130 static struct pda_power_pdata collie_power_data = {
 131         .init                   = collie_power_init,
 132         .is_ac_online           = collie_power_ac_online,
 133         .exit                   = collie_power_exit,
 134         .supplied_to            = collie_ac_supplied_to,
 135         .num_supplicants        = ARRAY_SIZE(collie_ac_supplied_to),
 136 };
 137
 138 static struct resource collie_power_resource[] = {
 139         {
 140                 .name           = "ac",
 141                 .flags          = IORESOURCE_IRQ |
 142                                   IORESOURCE_IRQ_HIGHEDGE |
 143                                   IORESOURCE_IRQ_LOWEDGE,
 144         },
 145 };
 146
 147 static struct platform_device collie_power_device = {
 148         .name                   = "pda-power",
 149         .id                     = -1,
 150         .dev.platform_data      = &collie_power_data,
 151         .resource               = collie_power_resource,
 152         .num_resources          = ARRAY_SIZE(collie_power_resource),
 153 };
 154
 155 #ifdef CONFIG_SHARP_LOCOMO
 156 /*
 157  * low-level UART features.
 158  */
 159 struct platform_device collie_locomo_device;
 160
 161 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl)
 162 {
 163         if (mctrl & TIOCM_RTS)
 164                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0);
 165         else
 166                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1);
 167
 168         if (mctrl & TIOCM_DTR)
 169                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0);
 170         else
 171                 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1);
 172 }
 173
 174 static u_int collie_uart_get_mctrl(struct uart_port *port)
 175 {
 176         int ret = TIOCM_CD;
 177         unsigned int r;
 178
 179         r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR);
 180         if (r == -ENODEV)
 181                 return ret;
 182         if (r & LOCOMO_GPIO_CTS)
 183                 ret |= TIOCM_CTS;
 184         if (r & LOCOMO_GPIO_DSR)
 185                 ret |= TIOCM_DSR;
 186
 187         return ret;
 188 }
 189
 190 static struct sa1100_port_fns collie_port_fns __initdata = {
 191         .set_mctrl      = collie_uart_set_mctrl,
 192         .get_mctrl      = collie_uart_get_mctrl,
 193 };
 194
 195 static int collie_uart_probe(struct locomo_dev *dev)
 196 {
 197         return 0;
 198 }
 199
 200 static int collie_uart_remove(struct locomo_dev *dev)
 201 {
 202         return 0;
 203 }
 204
 205 static struct locomo_driver collie_uart_driver = {
 206         .drv = {
 207                 .name = "collie_uart",
 208         },
 209         .devid  = LOCOMO_DEVID_UART,
 210         .probe  = collie_uart_probe,
 211         .remove = collie_uart_remove,
 212 };
 213
 214 static int __init collie_uart_init(void)
 215 {
 216         return locomo_driver_register(&collie_uart_driver);
 217 }
 218 device_initcall(collie_uart_init);
 219
 220 #endif
 221
 222
 223 static struct resource locomo_resources[] = {
 224         [0] = {
 225                 .start          = 0x40000000,
 226                 .end            = 0x40001fff,
 227                 .flags          = IORESOURCE_MEM,
 228         },
 229         [1] = {
 230                 .start          = IRQ_GPIO25,
 231                 .end            = IRQ_GPIO25,
 232                 .flags          = IORESOURCE_IRQ,
 233         },
 234 };
 235
 236 static struct locomo_platform_data locomo_info = {
 237         .irq_base       = IRQ_BOARD_START,
 238 };
 239
 240 struct platform_device collie_locomo_device = {
 241         .name           = "locomo",
 242         .id             = 0,
 243         .dev            = {
 244                 .platform_data  = &locomo_info,
 245         },
 246         .num_resources  = ARRAY_SIZE(locomo_resources),
 247         .resource       = locomo_resources,
 248 };
 249
 250 static struct platform_device *devices[] __initdata = {
 251         &collie_locomo_device,
 252         &colliescoop_device,
 253         &collie_power_device,
 254 };
 255
 256 static struct mtd_partition collie_partitions[] = {
 257         {
 258                 .name           = "bootloader",
 259                 .offset         = 0,
 260                 .size           = 0x000C0000,
 261                 .mask_flags     = MTD_WRITEABLE
 262         }, {
 263                 .name           = "kernel",
 264                 .offset         = MTDPART_OFS_APPEND,
 265                 .size           = 0x00100000,
 266         }, {
 267                 .name           = "rootfs",
 268                 .offset         = MTDPART_OFS_APPEND,
 269                 .size           = 0x00e20000,
 270         }
 271 };
 272
 273 static int collie_flash_init(void)
 274 {
 275         int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable");
 276         if (rc)
 277                 return rc;
 278
 279         rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1);
 280         if (rc)
 281                 gpio_free(COLLIE_GPIO_VPEN);
 282
 283         return rc;
 284 }
 285
 286 static void collie_set_vpp(int vpp)
 287 {
 288         gpio_set_value(COLLIE_GPIO_VPEN, vpp);
 289 }
 290
 291 static void collie_flash_exit(void)
 292 {
 293         gpio_free(COLLIE_GPIO_VPEN);
 294 }
 295
 296 static struct flash_platform_data collie_flash_data = {
 297         .map_name       = "cfi_probe",
 298         .init           = collie_flash_init,
 299         .set_vpp        = collie_set_vpp,
 300         .exit           = collie_flash_exit,
 301         .parts          = collie_partitions,
 302         .nr_parts       = ARRAY_SIZE(collie_partitions),
 303 };
 304
 305 static struct resource collie_flash_resources[] = {
 306         {
 307                 .start  = SA1100_CS0_PHYS,
 308                 .end    = SA1100_CS0_PHYS + SZ_32M - 1,
 309                 .flags  = IORESOURCE_MEM,
 310         }
 311 };
 312
 313 static void __init collie_init(void)
 314 {
 315         int ret = 0;
 316
 317         /* cpu initialize */
 318         GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK |
 319                 GPIO_MCP_CLK | GPIO_32_768kHz;
 320
 321         GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 |
 322                 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD |
 323                 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK |
 324                 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON |
 325                 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz;
 326
 327         PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 |
 328                 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS |
 329                 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM;
 330
 331         PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY |
 332                 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC;
 333
 334         PGSR = _COLLIE_GPIO_nREMOCON_ON;
 335
 336         PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4;
 337
 338         PCFR = PCFR_OPDE;
 339
 340         GPSR |= _COLLIE_GPIO_UCB1x00_RESET;
 341
 342         collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN);
 343         collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN);
 344         platform_scoop_config = &collie_pcmcia_config;
 345
 346         ret = platform_add_devices(devices, ARRAY_SIZE(devices));
 347         if (ret) {
 348                 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n");
 349         }
 350
 351         sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
 352                             ARRAY_SIZE(collie_flash_resources));
 353         sa11x0_register_mcp(&collie_mcp_data);
 354
 355         sharpsl_save_param();
 356 }
 357
 358 static struct map_desc collie_io_desc[] __initdata = {
 359         {       /* 32M main flash (cs0) */
 360                 .virtual        = 0xe8000000,
 361                 .pfn            = __phys_to_pfn(0x00000000),
 362                 .length         = 0x02000000,
 363                 .type           = MT_DEVICE
 364         }, {    /* 32M boot flash (cs1) */
 365                 .virtual        = 0xea000000,
 366                 .pfn            = __phys_to_pfn(0x08000000),
 367                 .length         = 0x02000000,
 368                 .type           = MT_DEVICE
 369         }
 370 };
 371
 372 static void __init collie_map_io(void)
 373 {
 374         sa1100_map_io();
 375         iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc));
 376
 377 #ifdef CONFIG_SHARP_LOCOMO
 378         sa1100_register_uart_fns(&collie_port_fns);
 379 #endif
 380         sa1100_register_uart(0, 3);
 381         sa1100_register_uart(1, 1);
 382 }
 383
 384 MACHINE_START(COLLIE, "Sharp-Collie")
 385         .map_io         = collie_map_io,
 386         .init_irq       = sa1100_init_irq,
 387         .timer          = &sa1100_timer,
 388         .init_machine   = collie_init,
 389         .restart        = sa11x0_restart,
 390 MACHINE_END