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.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
  53 static struct resource collie_scoop_resources[] = {
  54         [0] = DEFINE_RES_MEM(0x40800000, SZ_4K),
  55 };
  56
  57 static 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
  63 struct 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
  73 static 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
  82 static struct scoop_pcmcia_config collie_pcmcia_config = {
  83         .devs           = &collie_pcmcia_scoop[0],
  84         .num_devs       = 1,
  85 };
  86
  87 static struct ucb1x00_plat_data collie_ucb1x00_data = {
  88         .gpio_base      = COLLIE_TC35143_GPIO_BASE,
  89 };
  90
  91 static 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  */
 100 static 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
 112 err_gpio_in:
 113         gpio_free(COLLIE_GPIO_AC_IN);
 114 err_gpio_req:
 115         return ret;
 116 }
 117
 118 static void collie_power_exit(struct device *dev)
 119 {
 120         gpio_free(COLLIE_GPIO_AC_IN);
 121 }
 122
 123 static int collie_power_ac_online(void)
 124 {
 125         return gpio_get_value(COLLIE_GPIO_AC_IN) == 2;
 126 }
 127
 128 static char *collie_ac_supplied_to[] = {
 129         "main-battery",
 130         "backup-battery",
 131 };
 132
 133 static 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
 141 static struct resource collie_power_resource[] = {
 142         {
 143                 .name           = "ac",
 144                 .flags          = IORESOURCE_IRQ |
 145                                   IORESOURCE_IRQ_HIGHEDGE |
 146                                   IORESOURCE_IRQ_LOWEDGE,
 147         },
 148 };
 149
 150 static 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  */
 162 struct platform_device collie_locomo_device;
 163
 164 static 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
 177 static 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
 193 static struct sa1100_port_fns collie_port_fns __initdata = {
 194         .set_mctrl      = collie_uart_set_mctrl,
 195         .get_mctrl      = collie_uart_get_mctrl,
 196 };
 197
 198 static int collie_uart_probe(struct locomo_dev *dev)
 199 {
 200         return 0;
 201 }
 202
 203 static int collie_uart_remove(struct locomo_dev *dev)
 204 {
 205         return 0;
 206 }
 207
 208 static 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
 217 static int __init collie_uart_init(void)
 218 {
 219         return locomo_driver_register(&collie_uart_driver);
 220 }
 221 device_initcall(collie_uart_init);
 222
 223 #endif
 224
 225
 226 static struct resource locomo_resources[] = {
 227         [0] = DEFINE_RES_MEM(0x40000000, SZ_8K),
 228         [1] = DEFINE_RES_IRQ(IRQ_GPIO25),
 229 };
 230
 231 static struct locomo_platform_data locomo_info = {
 232         .irq_base       = IRQ_BOARD_START,
 233 };
 234
 235 struct 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
 245 static struct platform_device *devices[] __initdata = {
 246         &collie_locomo_device,
 247         &colliescoop_device,
 248         &collie_power_device,
 249 };
 250
 251 static 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
 268 static 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
 281 static void collie_set_vpp(int vpp)
 282 {
 283         gpio_set_value(COLLIE_GPIO_VPEN, vpp);
 284 }
 285
 286 static void collie_flash_exit(void)
 287 {
 288         gpio_free(COLLIE_GPIO_VPEN);
 289 }
 290
 291 static 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
 300 static struct resource collie_flash_resources[] = {
 301         DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M),
 302 };
 303
 304 static 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
 322 static 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
 372 static 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
 386 static 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
 398 MACHINE_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,
 406 MACHINE_END