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 391