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 47 #include <asm/hardware/scoop.h> 48 #include <asm/mach/sharpsl_param.h> 49 #include <asm/hardware/locomo.h> 50 #include <linux/platform_data/mfd-mcp-sa11x0.h> 51 #include <mach/irqs.h> 52 53 #include "generic.h" 54 55 static struct resource collie_scoop_resources[] = { 56 [0] = DEFINE_RES_MEM(0x40800000, SZ_4K), 57 }; 58 59 static struct scoop_config collie_scoop_setup = { 60 .io_dir = COLLIE_SCOOP_IO_DIR, 61 .io_out = COLLIE_SCOOP_IO_OUT, 62 .gpio_base = COLLIE_SCOOP_GPIO_BASE, 63 }; 64 65 struct platform_device colliescoop_device = { 66 .name = "sharp-scoop", 67 .id = -1, 68 .dev = { 69 .platform_data = &collie_scoop_setup, 70 }, 71 .num_resources = ARRAY_SIZE(collie_scoop_resources), 72 .resource = collie_scoop_resources, 73 }; 74 75 static struct scoop_pcmcia_dev collie_pcmcia_scoop[] = { 76 { 77 .dev = &colliescoop_device.dev, 78 .irq = COLLIE_IRQ_GPIO_CF_IRQ, 79 .cd_irq = COLLIE_IRQ_GPIO_CF_CD, 80 .cd_irq_str = "PCMCIA0 CD", 81 }, 82 }; 83 84 static struct scoop_pcmcia_config collie_pcmcia_config = { 85 .devs = &collie_pcmcia_scoop[0], 86 .num_devs = 1, 87 }; 88 89 static struct ucb1x00_plat_data collie_ucb1x00_data = { 90 .gpio_base = COLLIE_TC35143_GPIO_BASE, 91 }; 92 93 static struct mcp_plat_data collie_mcp_data = { 94 .mccr0 = MCCR0_ADM | MCCR0_ExtClk, 95 .sclk_rate = 9216000, 96 .codec_pdata = &collie_ucb1x00_data, 97 }; 98 99 /* 100 * Collie AC IN 101 */ 102 static int collie_power_init(struct device *dev) 103 { 104 int ret = gpio_request(COLLIE_GPIO_AC_IN, "ac in"); 105 if (ret) 106 goto err_gpio_req; 107 108 ret = gpio_direction_input(COLLIE_GPIO_AC_IN); 109 if (ret) 110 goto err_gpio_in; 111 112 return 0; 113 114 err_gpio_in: 115 gpio_free(COLLIE_GPIO_AC_IN); 116 err_gpio_req: 117 return ret; 118 } 119 120 static void collie_power_exit(struct device *dev) 121 { 122 gpio_free(COLLIE_GPIO_AC_IN); 123 } 124 125 static int collie_power_ac_online(void) 126 { 127 return gpio_get_value(COLLIE_GPIO_AC_IN) == 2; 128 } 129 130 static char *collie_ac_supplied_to[] = { 131 "main-battery", 132 "backup-battery", 133 }; 134 135 static struct pda_power_pdata collie_power_data = { 136 .init = collie_power_init, 137 .is_ac_online = collie_power_ac_online, 138 .exit = collie_power_exit, 139 .supplied_to = collie_ac_supplied_to, 140 .num_supplicants = ARRAY_SIZE(collie_ac_supplied_to), 141 }; 142 143 static struct resource collie_power_resource[] = { 144 { 145 .name = "ac", 146 .flags = IORESOURCE_IRQ | 147 IORESOURCE_IRQ_HIGHEDGE | 148 IORESOURCE_IRQ_LOWEDGE, 149 }, 150 }; 151 152 static struct platform_device collie_power_device = { 153 .name = "pda-power", 154 .id = -1, 155 .dev.platform_data = &collie_power_data, 156 .resource = collie_power_resource, 157 .num_resources = ARRAY_SIZE(collie_power_resource), 158 }; 159 160 #ifdef CONFIG_SHARP_LOCOMO 161 /* 162 * low-level UART features. 163 */ 164 struct platform_device collie_locomo_device; 165 166 static void collie_uart_set_mctrl(struct uart_port *port, u_int mctrl) 167 { 168 if (mctrl & TIOCM_RTS) 169 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 0); 170 else 171 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_RTS, 1); 172 173 if (mctrl & TIOCM_DTR) 174 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 0); 175 else 176 locomo_gpio_write(&collie_locomo_device.dev, LOCOMO_GPIO_DTR, 1); 177 } 178 179 static u_int collie_uart_get_mctrl(struct uart_port *port) 180 { 181 int ret = TIOCM_CD; 182 unsigned int r; 183 184 r = locomo_gpio_read_output(&collie_locomo_device.dev, LOCOMO_GPIO_CTS & LOCOMO_GPIO_DSR); 185 if (r == -ENODEV) 186 return ret; 187 if (r & LOCOMO_GPIO_CTS) 188 ret |= TIOCM_CTS; 189 if (r & LOCOMO_GPIO_DSR) 190 ret |= TIOCM_DSR; 191 192 return ret; 193 } 194 195 static struct sa1100_port_fns collie_port_fns __initdata = { 196 .set_mctrl = collie_uart_set_mctrl, 197 .get_mctrl = collie_uart_get_mctrl, 198 }; 199 200 static int collie_uart_probe(struct locomo_dev *dev) 201 { 202 return 0; 203 } 204 205 static int collie_uart_remove(struct locomo_dev *dev) 206 { 207 return 0; 208 } 209 210 static struct locomo_driver collie_uart_driver = { 211 .drv = { 212 .name = "collie_uart", 213 }, 214 .devid = LOCOMO_DEVID_UART, 215 .probe = collie_uart_probe, 216 .remove = collie_uart_remove, 217 }; 218 219 static int __init collie_uart_init(void) 220 { 221 return locomo_driver_register(&collie_uart_driver); 222 } 223 device_initcall(collie_uart_init); 224 225 #endif 226 227 228 static struct resource locomo_resources[] = { 229 [0] = DEFINE_RES_MEM(0x40000000, SZ_8K), 230 [1] = DEFINE_RES_IRQ(IRQ_GPIO25), 231 }; 232 233 static struct locomo_platform_data locomo_info = { 234 .irq_base = IRQ_BOARD_START, 235 }; 236 237 struct platform_device collie_locomo_device = { 238 .name = "locomo", 239 .id = 0, 240 .dev = { 241 .platform_data = &locomo_info, 242 }, 243 .num_resources = ARRAY_SIZE(locomo_resources), 244 .resource = locomo_resources, 245 }; 246 247 static struct gpio_keys_button collie_gpio_keys[] = { 248 { 249 .type = EV_PWR, 250 .code = KEY_RESERVED, 251 .gpio = COLLIE_GPIO_ON_KEY, 252 .desc = "On key", 253 .wakeup = 1, 254 .active_low = 1, 255 }, 256 { 257 .type = EV_PWR, 258 .code = KEY_WAKEUP, 259 .gpio = COLLIE_GPIO_WAKEUP, 260 .desc = "Sync", 261 .wakeup = 1, 262 .active_low = 1, 263 }, 264 }; 265 266 static struct gpio_keys_platform_data collie_gpio_keys_data = { 267 .buttons = collie_gpio_keys, 268 .nbuttons = ARRAY_SIZE(collie_gpio_keys), 269 }; 270 271 static struct platform_device collie_gpio_keys_device = { 272 .name = "gpio-keys", 273 .id = -1, 274 .dev = { 275 .platform_data = &collie_gpio_keys_data, 276 }, 277 }; 278 279 static struct platform_device *devices[] __initdata = { 280 &collie_locomo_device, 281 &colliescoop_device, 282 &collie_power_device, 283 &collie_gpio_keys_device, 284 }; 285 286 static struct mtd_partition collie_partitions[] = { 287 { 288 .name = "bootloader", 289 .offset = 0, 290 .size = 0x000C0000, 291 .mask_flags = MTD_WRITEABLE 292 }, { 293 .name = "kernel", 294 .offset = MTDPART_OFS_APPEND, 295 .size = 0x00100000, 296 }, { 297 .name = "rootfs", 298 .offset = MTDPART_OFS_APPEND, 299 .size = 0x00e20000, 300 } 301 }; 302 303 static int collie_flash_init(void) 304 { 305 int rc = gpio_request(COLLIE_GPIO_VPEN, "flash Vpp enable"); 306 if (rc) 307 return rc; 308 309 rc = gpio_direction_output(COLLIE_GPIO_VPEN, 1); 310 if (rc) 311 gpio_free(COLLIE_GPIO_VPEN); 312 313 return rc; 314 } 315 316 static void collie_set_vpp(int vpp) 317 { 318 gpio_set_value(COLLIE_GPIO_VPEN, vpp); 319 } 320 321 static void collie_flash_exit(void) 322 { 323 gpio_free(COLLIE_GPIO_VPEN); 324 } 325 326 static struct flash_platform_data collie_flash_data = { 327 .map_name = "jedec_probe", 328 .init = collie_flash_init, 329 .set_vpp = collie_set_vpp, 330 .exit = collie_flash_exit, 331 .parts = collie_partitions, 332 .nr_parts = ARRAY_SIZE(collie_partitions), 333 }; 334 335 static struct resource collie_flash_resources[] = { 336 DEFINE_RES_MEM(SA1100_CS0_PHYS, SZ_32M), 337 }; 338 339 static struct sa1100fb_mach_info collie_lcd_info = { 340 .pixclock = 171521, .bpp = 16, 341 .xres = 320, .yres = 240, 342 343 .hsync_len = 5, .vsync_len = 1, 344 .left_margin = 11, .upper_margin = 2, 345 .right_margin = 30, .lower_margin = 0, 346 347 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 348 349 .lccr0 = LCCR0_Color | LCCR0_Sngl | LCCR0_Act, 350 .lccr3 = LCCR3_OutEnH | LCCR3_PixRsEdg | LCCR3_ACBsDiv(2), 351 352 #ifdef CONFIG_BACKLIGHT_LOCOMO 353 .lcd_power = locomolcd_power 354 #endif 355 }; 356 357 static void __init collie_init(void) 358 { 359 int ret = 0; 360 361 /* cpu initialize */ 362 GAFR = GPIO_SSP_TXD | GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SSP_CLK | 363 GPIO_MCP_CLK | GPIO_32_768kHz; 364 365 GPDR = GPIO_LDD8 | GPIO_LDD9 | GPIO_LDD10 | GPIO_LDD11 | GPIO_LDD12 | 366 GPIO_LDD13 | GPIO_LDD14 | GPIO_LDD15 | GPIO_SSP_TXD | 367 GPIO_SSP_SCLK | GPIO_SSP_SFRM | GPIO_SDLC_SCLK | 368 _COLLIE_GPIO_UCB1x00_RESET | _COLLIE_GPIO_nMIC_ON | 369 _COLLIE_GPIO_nREMOCON_ON | GPIO_32_768kHz; 370 371 PPDR = PPC_LDD0 | PPC_LDD1 | PPC_LDD2 | PPC_LDD3 | PPC_LDD4 | PPC_LDD5 | 372 PPC_LDD6 | PPC_LDD7 | PPC_L_PCLK | PPC_L_LCLK | PPC_L_FCLK | PPC_L_BIAS | 373 PPC_TXD1 | PPC_TXD2 | PPC_TXD3 | PPC_TXD4 | PPC_SCLK | PPC_SFRM; 374 375 PWER = _COLLIE_GPIO_AC_IN | _COLLIE_GPIO_CO | _COLLIE_GPIO_ON_KEY | 376 _COLLIE_GPIO_WAKEUP | _COLLIE_GPIO_nREMOCON_INT | PWER_RTC; 377 378 PGSR = _COLLIE_GPIO_nREMOCON_ON; 379 380 PSDR = PPC_RXD1 | PPC_RXD2 | PPC_RXD3 | PPC_RXD4; 381 382 PCFR = PCFR_OPDE; 383 384 GPSR |= _COLLIE_GPIO_UCB1x00_RESET; 385 386 collie_power_resource[0].start = gpio_to_irq(COLLIE_GPIO_AC_IN); 387 collie_power_resource[0].end = gpio_to_irq(COLLIE_GPIO_AC_IN); 388 389 sa11x0_ppc_configure_mcp(); 390 391 392 platform_scoop_config = &collie_pcmcia_config; 393 394 ret = platform_add_devices(devices, ARRAY_SIZE(devices)); 395 if (ret) { 396 printk(KERN_WARNING "collie: Unable to register LoCoMo device\n"); 397 } 398 399 sa11x0_register_lcd(&collie_lcd_info); 400 sa11x0_register_mtd(&collie_flash_data, collie_flash_resources, 401 ARRAY_SIZE(collie_flash_resources)); 402 sa11x0_register_mcp(&collie_mcp_data); 403 404 sharpsl_save_param(); 405 } 406 407 static struct map_desc collie_io_desc[] __initdata = { 408 { /* 32M main flash (cs0) */ 409 .virtual = 0xe8000000, 410 .pfn = __phys_to_pfn(0x00000000), 411 .length = 0x02000000, 412 .type = MT_DEVICE 413 }, { /* 32M boot flash (cs1) */ 414 .virtual = 0xea000000, 415 .pfn = __phys_to_pfn(0x08000000), 416 .length = 0x02000000, 417 .type = MT_DEVICE 418 } 419 }; 420 421 static void __init collie_map_io(void) 422 { 423 sa1100_map_io(); 424 iotable_init(collie_io_desc, ARRAY_SIZE(collie_io_desc)); 425 426 #ifdef CONFIG_SHARP_LOCOMO 427 sa1100_register_uart_fns(&collie_port_fns); 428 #endif 429 sa1100_register_uart(0, 3); 430 sa1100_register_uart(1, 1); 431 } 432 433 MACHINE_START(COLLIE, "Sharp-Collie") 434 .map_io = collie_map_io, 435 .nr_irqs = SA1100_NR_IRQS, 436 .init_irq = sa1100_init_irq, 437 .init_time = sa1100_timer_init, 438 .init_machine = collie_init, 439 .init_late = sa11x0_init_late, 440 .restart = sa11x0_restart, 441 MACHINE_END 442