1 /* 2 * Hardware definitions for Compaq iPAQ H3xxx Handheld Computers 3 * 4 * Copyright 2000,1 Compaq Computer Corporation. 5 * 6 * Use consistent with the GNU GPL is permitted, 7 * provided that this copyright notice is 8 * preserved in its entirety in all copies and derived works. 9 * 10 * COMPAQ COMPUTER CORPORATION MAKES NO WARRANTIES, EXPRESSED OR IMPLIED, 11 * AS TO THE USEFULNESS OR CORRECTNESS OF THIS CODE OR ITS 12 * FITNESS FOR ANY PARTICULAR PURPOSE. 13 * 14 * Author: Jamey Hicks. 15 * 16 * History: 17 * 18 * 2001-10-?? Andrew Christian Added support for iPAQ H3800 19 * and abstracted EGPIO interface. 20 * 21 */ 22 #include <linux/module.h> 23 #include <linux/init.h> 24 #include <linux/kernel.h> 25 #include <linux/tty.h> 26 #include <linux/pm.h> 27 #include <linux/device.h> 28 #include <linux/mtd/mtd.h> 29 #include <linux/mtd/partitions.h> 30 #include <linux/serial_core.h> 31 32 #include <asm/irq.h> 33 #include <mach/hardware.h> 34 #include <asm/mach-types.h> 35 #include <asm/setup.h> 36 37 #include <asm/mach/irq.h> 38 #include <asm/mach/arch.h> 39 #include <asm/mach/flash.h> 40 #include <asm/mach/irda.h> 41 #include <asm/mach/map.h> 42 #include <asm/mach/serial_sa1100.h> 43 44 #include <mach/h3600.h> 45 #include <mach/h3600_gpio.h> 46 47 #include "generic.h" 48 49 void (*assign_h3600_egpio)(enum ipaq_egpio_type x, int level); 50 EXPORT_SYMBOL(assign_h3600_egpio); 51 52 static struct mtd_partition h3xxx_partitions[] = { 53 { 54 .name = "H3XXX boot firmware", 55 .size = 0x00040000, 56 .offset = 0, 57 .mask_flags = MTD_WRITEABLE, /* force read-only */ 58 }, { 59 .name = "H3XXX rootfs", 60 .size = MTDPART_SIZ_FULL, 61 .offset = 0x00040000, 62 } 63 }; 64 65 static void h3xxx_set_vpp(int vpp) 66 { 67 assign_h3600_egpio(IPAQ_EGPIO_VPP_ON, vpp); 68 } 69 70 static struct flash_platform_data h3xxx_flash_data = { 71 .map_name = "cfi_probe", 72 .set_vpp = h3xxx_set_vpp, 73 .parts = h3xxx_partitions, 74 .nr_parts = ARRAY_SIZE(h3xxx_partitions), 75 }; 76 77 static struct resource h3xxx_flash_resource = { 78 .start = SA1100_CS0_PHYS, 79 .end = SA1100_CS0_PHYS + SZ_32M - 1, 80 .flags = IORESOURCE_MEM, 81 }; 82 83 /* 84 * This turns the IRDA power on or off on the Compaq H3600 85 */ 86 static int h3600_irda_set_power(struct device *dev, unsigned int state) 87 { 88 assign_h3600_egpio( IPAQ_EGPIO_IR_ON, state ); 89 90 return 0; 91 } 92 93 static void h3600_irda_set_speed(struct device *dev, unsigned int speed) 94 { 95 assign_h3600_egpio(IPAQ_EGPIO_IR_FSEL, !(speed < 4000000)); 96 } 97 98 static struct irda_platform_data h3600_irda_data = { 99 .set_power = h3600_irda_set_power, 100 .set_speed = h3600_irda_set_speed, 101 }; 102 103 static void h3xxx_mach_init(void) 104 { 105 sa11x0_set_flash_data(&h3xxx_flash_data, &h3xxx_flash_resource, 1); 106 sa11x0_set_irda_data(&h3600_irda_data); 107 } 108 109 /* 110 * low-level UART features 111 */ 112 113 static void h3600_uart_set_mctrl(struct uart_port *port, u_int mctrl) 114 { 115 if (port->mapbase == _Ser3UTCR0) { 116 if (mctrl & TIOCM_RTS) 117 GPCR = GPIO_H3600_COM_RTS; 118 else 119 GPSR = GPIO_H3600_COM_RTS; 120 } 121 } 122 123 static u_int h3600_uart_get_mctrl(struct uart_port *port) 124 { 125 u_int ret = TIOCM_CD | TIOCM_CTS | TIOCM_DSR; 126 127 if (port->mapbase == _Ser3UTCR0) { 128 int gplr = GPLR; 129 /* DCD and CTS bits are inverted in GPLR by RS232 transceiver */ 130 if (gplr & GPIO_H3600_COM_DCD) 131 ret &= ~TIOCM_CD; 132 if (gplr & GPIO_H3600_COM_CTS) 133 ret &= ~TIOCM_CTS; 134 } 135 136 return ret; 137 } 138 139 static void h3600_uart_pm(struct uart_port *port, u_int state, u_int oldstate) 140 { 141 if (port->mapbase == _Ser2UTCR0) { /* TODO: REMOVE THIS */ 142 assign_h3600_egpio(IPAQ_EGPIO_IR_ON, !state); 143 } else if (port->mapbase == _Ser3UTCR0) { 144 assign_h3600_egpio(IPAQ_EGPIO_RS232_ON, !state); 145 } 146 } 147 148 /* 149 * Enable/Disable wake up events for this serial port. 150 * Obviously, we only support this on the normal COM port. 151 */ 152 static int h3600_uart_set_wake(struct uart_port *port, u_int enable) 153 { 154 int err = -EINVAL; 155 156 if (port->mapbase == _Ser3UTCR0) { 157 if (enable) 158 PWER |= PWER_GPIO23 | PWER_GPIO25; /* DCD and CTS */ 159 else 160 PWER &= ~(PWER_GPIO23 | PWER_GPIO25); /* DCD and CTS */ 161 err = 0; 162 } 163 return err; 164 } 165 166 static struct sa1100_port_fns h3600_port_fns __initdata = { 167 .set_mctrl = h3600_uart_set_mctrl, 168 .get_mctrl = h3600_uart_get_mctrl, 169 .pm = h3600_uart_pm, 170 .set_wake = h3600_uart_set_wake, 171 }; 172 173 /* 174 * helper for sa1100fb 175 */ 176 static void h3xxx_lcd_power(int enable) 177 { 178 assign_h3600_egpio(IPAQ_EGPIO_LCD_POWER, enable); 179 } 180 181 static struct map_desc h3600_io_desc[] __initdata = { 182 { /* static memory bank 2 CS#2 */ 183 .virtual = H3600_BANK_2_VIRT, 184 .pfn = __phys_to_pfn(SA1100_CS2_PHYS), 185 .length = 0x02800000, 186 .type = MT_DEVICE 187 }, { /* static memory bank 4 CS#4 */ 188 .virtual = H3600_BANK_4_VIRT, 189 .pfn = __phys_to_pfn(SA1100_CS4_PHYS), 190 .length = 0x00800000, 191 .type = MT_DEVICE 192 }, { /* EGPIO 0 CS#5 */ 193 .virtual = H3600_EGPIO_VIRT, 194 .pfn = __phys_to_pfn(H3600_EGPIO_PHYS), 195 .length = 0x01000000, 196 .type = MT_DEVICE 197 } 198 }; 199 200 /* 201 * Common map_io initialization 202 */ 203 204 static void __init h3xxx_map_io(void) 205 { 206 sa1100_map_io(); 207 iotable_init(h3600_io_desc, ARRAY_SIZE(h3600_io_desc)); 208 209 sa1100_register_uart_fns(&h3600_port_fns); 210 sa1100_register_uart(0, 3); /* Common serial port */ 211 // sa1100_register_uart(1, 1); /* Microcontroller on 3100/3600 */ 212 213 /* Ensure those pins are outputs and driving low */ 214 PPDR |= PPC_TXD4 | PPC_SCLK | PPC_SFRM; 215 PPSR &= ~(PPC_TXD4 | PPC_SCLK | PPC_SFRM); 216 217 /* Configure suspend conditions */ 218 PGSR = 0; 219 PWER = PWER_GPIO0 | PWER_RTC; 220 PCFR = PCFR_OPDE; 221 PSDR = 0; 222 223 sa1100fb_lcd_power = h3xxx_lcd_power; 224 } 225 226 /************************* H3100 *************************/ 227 228 #ifdef CONFIG_SA1100_H3100 229 230 #define H3100_EGPIO (*(volatile unsigned int *)H3600_EGPIO_VIRT) 231 static unsigned int h3100_egpio = 0; 232 233 static void h3100_control_egpio(enum ipaq_egpio_type x, int setp) 234 { 235 unsigned int egpio = 0; 236 long gpio = 0; 237 unsigned long flags; 238 239 switch (x) { 240 case IPAQ_EGPIO_LCD_POWER: 241 egpio |= EGPIO_H3600_LCD_ON; 242 gpio |= GPIO_H3100_LCD_3V_ON; 243 break; 244 case IPAQ_EGPIO_LCD_ENABLE: 245 break; 246 case IPAQ_EGPIO_CODEC_NRESET: 247 egpio |= EGPIO_H3600_CODEC_NRESET; 248 break; 249 case IPAQ_EGPIO_AUDIO_ON: 250 gpio |= GPIO_H3100_AUD_PWR_ON 251 | GPIO_H3100_AUD_ON; 252 break; 253 case IPAQ_EGPIO_QMUTE: 254 gpio |= GPIO_H3100_QMUTE; 255 break; 256 case IPAQ_EGPIO_OPT_NVRAM_ON: 257 egpio |= EGPIO_H3600_OPT_NVRAM_ON; 258 break; 259 case IPAQ_EGPIO_OPT_ON: 260 egpio |= EGPIO_H3600_OPT_ON; 261 break; 262 case IPAQ_EGPIO_CARD_RESET: 263 egpio |= EGPIO_H3600_CARD_RESET; 264 break; 265 case IPAQ_EGPIO_OPT_RESET: 266 egpio |= EGPIO_H3600_OPT_RESET; 267 break; 268 case IPAQ_EGPIO_IR_ON: 269 gpio |= GPIO_H3100_IR_ON; 270 break; 271 case IPAQ_EGPIO_IR_FSEL: 272 gpio |= GPIO_H3100_IR_FSEL; 273 break; 274 case IPAQ_EGPIO_RS232_ON: 275 egpio |= EGPIO_H3600_RS232_ON; 276 break; 277 case IPAQ_EGPIO_VPP_ON: 278 egpio |= EGPIO_H3600_VPP_ON; 279 break; 280 } 281 282 if (egpio || gpio) { 283 local_irq_save(flags); 284 if (setp) { 285 h3100_egpio |= egpio; 286 GPSR = gpio; 287 } else { 288 h3100_egpio &= ~egpio; 289 GPCR = gpio; 290 } 291 H3100_EGPIO = h3100_egpio; 292 local_irq_restore(flags); 293 } 294 } 295 296 #define H3100_DIRECT_EGPIO (GPIO_H3100_BT_ON \ 297 | GPIO_H3100_GPIO3 \ 298 | GPIO_H3100_QMUTE \ 299 | GPIO_H3100_LCD_3V_ON \ 300 | GPIO_H3100_AUD_ON \ 301 | GPIO_H3100_AUD_PWR_ON \ 302 | GPIO_H3100_IR_ON \ 303 | GPIO_H3100_IR_FSEL) 304 305 static void __init h3100_map_io(void) 306 { 307 h3xxx_map_io(); 308 309 /* Initialize h3100-specific values here */ 310 GPCR = 0x0fffffff; /* All outputs are set low by default */ 311 GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK | 312 GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA | 313 GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 | 314 H3100_DIRECT_EGPIO; 315 316 /* Older bootldrs put GPIO2-9 in alternate mode on the 317 assumption that they are used for video */ 318 GAFR &= ~H3100_DIRECT_EGPIO; 319 320 H3100_EGPIO = h3100_egpio; 321 assign_h3600_egpio = h3100_control_egpio; 322 } 323 324 MACHINE_START(H3100, "Compaq iPAQ H3100") 325 .phys_io = 0x80000000, 326 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, 327 .boot_params = 0xc0000100, 328 .map_io = h3100_map_io, 329 .init_irq = sa1100_init_irq, 330 .timer = &sa1100_timer, 331 .init_machine = h3xxx_mach_init, 332 MACHINE_END 333 334 #endif /* CONFIG_SA1100_H3100 */ 335 336 /************************* H3600 *************************/ 337 338 #ifdef CONFIG_SA1100_H3600 339 340 #define H3600_EGPIO (*(volatile unsigned int *)H3600_EGPIO_VIRT) 341 static unsigned int h3600_egpio = EGPIO_H3600_RS232_ON; 342 343 static void h3600_control_egpio(enum ipaq_egpio_type x, int setp) 344 { 345 unsigned int egpio = 0; 346 unsigned long flags; 347 348 switch (x) { 349 case IPAQ_EGPIO_LCD_POWER: 350 egpio |= EGPIO_H3600_LCD_ON | 351 EGPIO_H3600_LCD_PCI | 352 EGPIO_H3600_LCD_5V_ON | 353 EGPIO_H3600_LVDD_ON; 354 break; 355 case IPAQ_EGPIO_LCD_ENABLE: 356 break; 357 case IPAQ_EGPIO_CODEC_NRESET: 358 egpio |= EGPIO_H3600_CODEC_NRESET; 359 break; 360 case IPAQ_EGPIO_AUDIO_ON: 361 egpio |= EGPIO_H3600_AUD_AMP_ON | 362 EGPIO_H3600_AUD_PWR_ON; 363 break; 364 case IPAQ_EGPIO_QMUTE: 365 egpio |= EGPIO_H3600_QMUTE; 366 break; 367 case IPAQ_EGPIO_OPT_NVRAM_ON: 368 egpio |= EGPIO_H3600_OPT_NVRAM_ON; 369 break; 370 case IPAQ_EGPIO_OPT_ON: 371 egpio |= EGPIO_H3600_OPT_ON; 372 break; 373 case IPAQ_EGPIO_CARD_RESET: 374 egpio |= EGPIO_H3600_CARD_RESET; 375 break; 376 case IPAQ_EGPIO_OPT_RESET: 377 egpio |= EGPIO_H3600_OPT_RESET; 378 break; 379 case IPAQ_EGPIO_IR_ON: 380 egpio |= EGPIO_H3600_IR_ON; 381 break; 382 case IPAQ_EGPIO_IR_FSEL: 383 egpio |= EGPIO_H3600_IR_FSEL; 384 break; 385 case IPAQ_EGPIO_RS232_ON: 386 egpio |= EGPIO_H3600_RS232_ON; 387 break; 388 case IPAQ_EGPIO_VPP_ON: 389 egpio |= EGPIO_H3600_VPP_ON; 390 break; 391 } 392 393 if (egpio) { 394 local_irq_save(flags); 395 if (setp) 396 h3600_egpio |= egpio; 397 else 398 h3600_egpio &= ~egpio; 399 H3600_EGPIO = h3600_egpio; 400 local_irq_restore(flags); 401 } 402 } 403 404 static void __init h3600_map_io(void) 405 { 406 h3xxx_map_io(); 407 408 /* Initialize h3600-specific values here */ 409 410 GPCR = 0x0fffffff; /* All outputs are set low by default */ 411 GPDR = GPIO_H3600_COM_RTS | GPIO_H3600_L3_CLOCK | 412 GPIO_H3600_L3_MODE | GPIO_H3600_L3_DATA | 413 GPIO_H3600_CLK_SET1 | GPIO_H3600_CLK_SET0 | 414 GPIO_LDD15 | GPIO_LDD14 | GPIO_LDD13 | GPIO_LDD12 | 415 GPIO_LDD11 | GPIO_LDD10 | GPIO_LDD9 | GPIO_LDD8; 416 417 H3600_EGPIO = h3600_egpio; /* Maintains across sleep? */ 418 assign_h3600_egpio = h3600_control_egpio; 419 } 420 421 MACHINE_START(H3600, "Compaq iPAQ H3600") 422 .phys_io = 0x80000000, 423 .io_pg_offst = ((0xf8000000) >> 18) & 0xfffc, 424 .boot_params = 0xc0000100, 425 .map_io = h3600_map_io, 426 .init_irq = sa1100_init_irq, 427 .timer = &sa1100_timer, 428 .init_machine = h3xxx_mach_init, 429 MACHINE_END 430 431 #endif /* CONFIG_SA1100_H3600 */ 432 433