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 430