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/pda_power.h> 34 35 #include <video/sa1100fb.h> 36 37 #include <mach/hardware.h> 38 #include <asm/mach-types.h> 39 #include <asm/page.h> 40 #include <asm/setup.h> 41 #include <mach/collie.h> 42 43 #include <asm/mach/arch.h> 44 #include <asm/mach/flash.h> 45 #include <asm/mach/map.h> 46 #include <asm/mach/irda.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 static int collie_ir_startup(struct device *dev) 101 { 102 int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA"); 103 if (rc) 104 return rc; 105 rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1); 106 107 if (!rc) 108 return 0; 109 110 gpio_free(COLLIE_GPIO_IR_ON); 111 return rc; 112 } 113 114 static void collie_ir_shutdown(struct device *dev) 115 { 116 gpio_free(COLLIE_GPIO_IR_ON); 117 } 118 119 static int collie_ir_set_power(struct device *dev, unsigned int state) 120 { 121 gpio_set_value(COLLIE_GPIO_IR_ON, !state); 122 return 0; 123 } 124 125 static struct irda_platform_data collie_ir_data = { 126 .startup = collie_ir_startup, 127 .shutdown = collie_ir_shutdown, 128 .set_power = collie_ir_set_power, 129 }; 130 131 /* 132 * Collie AC IN 133 */ 134 static int collie_power_init(struct device *dev) 135 { 136 int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in"); 137 if (ret) 138 goto err_gpio_req; 139 140 ret = gpio_direction_input(COLLIE_GPIO_AC_IN); 141 if (ret) 142 goto err_gpio_in; 143 144 return 0; 145 146 err_gpio_in: 147 gpio_free(COLLIE_GPIO_AC_IN); 148 err_gpio_req: 149 return ret; 150 } 151 152 static void collie_power_exit(struct device *dev) 153 { 154 gpio_free(COLLIE_GPIO_AC_IN); 155 } 156 157 static int collie_power_ac_online(void) 158 { 159 return gpio_get_value(COLLIE_GPIO_AC_IN) == 2; 160 } 161 162 static char *collie_ac_supplied_to[] = { 163 "main-battery", 164 "backup-battery", 165 }; 166 167 static struct pda_power_pdata collie_power_data = { 168 .init = collie_power_init, 169 .is_ac_online = collie_power_ac_online, 170 .exit = collie_power_exit, 171 .supplied_to = collie_ac_supplied_to, 172 .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to), 173 }; 174 175 static struct resource collie_power_resource[] = { 176 { 177 .name = "ac", 178 .flags = IORESOURCE_IRQ | 179 IORESOURCE_IRQ_HIGHEDGE | 180 IORESOURCE_IRQ_LOWEDGE, 181 }, 182 }; 183 184 static struct platform_device collie_power_device = { 185 .name = "pda-power", 186 .id = -1, 187 .dev.platform_data = &collie_power_data, 188 .resource = collie_power_resource, 189 .num_resources = ARRAY_SIZE(collie_power_resource), 190 }; 191 192 #ifdef CONFIG_SHARP_LOCOMO 193 /* 194 * low-level UART features. 195 */ 196 struct platform_device collie_locomo_device; 197 198 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl) 199 { 200 if (mctrl & TIOCM_RTS) 201 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0); 202 else 203 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1); 204 205 if (mctrl & TIOCM_DTR) 206 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0); 207 else 208 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1); 209 } 210 211 static u_int collie_uart_get_mctrl(struct uart_port *port) 212 { 213 int ret = TIOCM_CD; 214 unsigned int r; 215 216 r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR); 217 if (r == -ENODEV) 218 return ret; 219 if (r & LOCOMO_GPIO_CTS) 220 ret |= TIOCM_CTS; 221 if (r & LOCOMO_GPIO_DSR) 222 ret |= TIOCM_DSR; 223 224 return ret; 225 } 226 227 static struct sa1100_port_fns collie_port_fns __initdata = { 228 .set_mctrl = collie_uart_set_mctrl, 229 .get_mctrl = collie_uart_get_mctrl, 230 }; 231 232 static int collie_uart_probe(struct locomo_dev *dev) 233 { 234 return 0; 235 } 236 237 static int collie_uart_remove(struct locomo_dev *dev) 238 { 239 return 0; 240 } 241 242 static struct locomo_driver collie_uart_driver = { 243 .drv = { 244 .name = "collie_uart", 245 }, 246 .devid = LOCOMO_DEVID_UART, 247 .probe = collie_uart_probe, 248 .remove = collie_uart_remove, 249 }; 250 251 static int __init collie_uart_init(void) 252 { 253 return locomo_driver_register(&collie_uart_driver); 254 } 255 device_initcall(collie_uart_init); 256 257 #endif 258 259 260 static struct resource locomo_resources[] = { 261 [0] = DEFINE_RES_MEM(0x40000000, SZ_8K), 262 [1] = DEFINE_RES_IRQ(IRQ_GPIO25), 263 }; 264 265 static struct locomo_platform_data locomo_info = { 266 .irq_base = IRQ_BOARD_START, 267 }; 268 269 struct platform_device collie_locomo_device = { 270 .name = "locomo", 271 .id = 0, 272 .dev = { 273 .platform_data = &locomo_info, 274 }, 275 .num_resources = ARRAY_SIZE(locomo_resources), 276 .resource = locomo_resources, 277 }; 278 279 static struct gpio_keys_button collie_gpio_keys[] = { 280 { 281 .type = EV_PWR, 282 .code = KEY_RESERVED, 283 .gpio = COLLIE_GPIO_ON_KEY, 284 .desc = "On key", 285 .wakeup = 1, 286 .active_low = 1, 287 }, 288 { 289 .type = EV_PWR, 290 .code = KEY_WAKEUP, 291 .gpio = COLLIE_GPIO_WAKEUP, 292 .desc = "Sync", 293 .wakeup = 1, 294 .active_low = 1, 295 }, 296 }; 297 298 static struct gpio_keys_platform_data collie_gpio_keys_data = { 299 .buttons = collie_gpio_keys, 300 .nbuttons = ARRAY_SIZE(collie_gpio_keys), 301 }; 302 303 static struct platform_device collie_gpio_keys_device = { 304 .name = "gpio-keys", 305 .id = -1, 306 .dev = { 307 .platform_data = &collie_gpio_keys_data, 308 }, 309 }; 310 311 static struct platform_device *devices[] __initdata = { 312 &collie_locomo_device, 313 &colliescoop_device, 314 &collie_power_device, 315 &collie_gpio_keys_device, 316 }; 317 318 static struct mtd_partition collie_partitions[] = { 319 { 320 .name = "bootloader", 321 .offset = 0, 322 .size = 0x000C0000, 323 .mask_flags = MTD_WRITEABLE 324 }, { 325 .name = "kernel", 326 .offset = MTDPART_OFS_APPEND, 327 .size = 0x00100000, 328 }, { 329 .name = "rootfs", 330 .offset = MTDPART_OFS_APPEND, 331 .size = 0x00e20000, 332 }, { 333 .name = "bootblock", 334 .offset = MTDPART_OFS_APPEND, 335 .size = 0x00020000, 336 .mask_flags = MTD_WRITEABLE 337 } 338 }; 339 340 static int collie_flash_init(void) 341 { 342 int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable"); 343 if (rc) 344 return rc; 345 346 rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1); 347 if (rc) 348 gpio_free(COLLIE_GPIO_VPEN); 349 350 return rc; 351 } 352 353 static void collie_set_vpp(int vpp) 354 { 355 gpio_set_value(COLLIE_GPIO_VPEN, vpp); 356 } 357 358 static void collie_flash_exit(void) 359 { 360 gpio_free(COLLIE_GPIO_VPEN); 361 } 362 363 static struct flash_platform_data collie_flash_data = { 364 .map_name = "cfi_probe", 365 .init = collie_flash_init, 366 .set_vpp = collie_set_vpp, 367 .exit = collie_flash_exit, 368 .parts = collie_partitions, 369 .nr_parts = ARRAY_SIZE(collie_partitions), 370 }; 371 372 static struct resource collie_flash_resources[] = { 373 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M), 374 }; 375 376 static struct sa1100fb_mach_info collie_lcd_info = { 377 .pixclock = 171521, .bpp = 16, 378 .xres = 320, .yres = 240, 379 380 .hsync_len = 5, .vsync_len = 1, 381 .left_margin = 11, .upper_margin = 2, 382 .right_margin = 30, .lower_margin = 0, 383 384 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 385 386 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, 387 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), 388 389 #ifdef CONFIG_BACKLIGHT_LOCOMO 390 .lcd_power = locomolcd_power 391 #endif 392 }; 393 394 static void __init collie_init(void) 395 { 396 int ret = 0; 397 398 /* cpu initialize */ 399 GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | 400 GPIO_MCP_CLK | GPIO_32_768kHz; 401 402 GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | 403 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | 404 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | 405 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON | 406 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz; 407 408 PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | 409 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | 410 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM; 411 412 PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY | 413 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC; 414 415 PGSR = _COLLIE_GPIO_nREMOCON_ON; 416 417 PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4; 418 419 PCFR = PCFR_OPDE; 420 421 GPSR |= _COLLIE_GPIO_UCB1x00_RESET; 422 423 collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN); 424 collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN); 425 426 sa11x0_ppc_configure_mcp(); 427 428 429 platform_scoop_config = &collie_pcmcia_config; 430 431 ret = platform_add_devices(devices, ARRAY_SIZE(devices)); 432 if (ret) { 433 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); 434 } 435 436 sa11x0_register_lcd(&collie_lcd_info); 437 sa11x0_register_mtd(&collie_flash_data, collie_flash_resources, 438 ARRAY_SIZE(collie_flash_resources)); 439 sa11x0_register_mcp(&collie_mcp_data); 440 sa11x0_register_irda(&collie_ir_data); 441 442 sharpsl_save_param(); 443 } 444 445 static struct map_desc collie_io_desc[] __initdata = { 446 { /* 32M main flash (cs0) */ 447 .virtual = 0xe8000000, 448 .pfn = __phys_to_pfn(0x00000000), 449 .length = 0x02000000, 450 .type = MT_DEVICE 451 }, { /* 32M boot flash (cs1) */ 452 .virtual = 0xea000000, 453 .pfn = __phys_to_pfn(0x08000000), 454 .length = 0x02000000, 455 .type = MT_DEVICE 456 } 457 }; 458 459 static void __init collie_map_io(void) 460 { 461 sa1100_map_io(); 462 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); 463 464 #ifdef CONFIG_SHARP_LOCOMO 465 sa1100_register_uart_fns(&collie_port_fns); 466 #endif 467 sa1100_register_uart(0, 3); 468 sa1100_register_uart(1, 1); 469 } 470 471 MACHINE_START(COLLIE, "Sharp-Collie") 472 .map_io = collie_map_io, 473 .nr_irqs = SA1100_NR_IRQS, 474 .init_irq = sa1100_init_irq, 475 .init_time = sa1100_timer_init, 476 .init_machine = collie_init, 477 .init_late = sa11x0_init_late, 478 .restart = sa11x0_restart, 479 MACHINE_END 480