1/* 2 * linux/arch/arm/mach-pxa/saar.c 3 * 4 * Support for the Marvell PXA930 Handheld Platform (aka SAAR) 5 * 6 * Copyright (C) 2007-2008 Marvell International Ltd. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License version 2 as 10 * publishhed by the Free Software Foundation. 11 */ 12 13#include <linux/module.h> 14#include <linux/kernel.h> 15#include <linux/interrupt.h> 16#include <linux/init.h> 17#include <linux/platform_device.h> 18#include <linux/clk.h> 19#include <linux/gpio.h> 20#include <linux/delay.h> 21#include <linux/fb.h> 22#include <linux/i2c.h> 23#include <linux/smc91x.h> 24#include <linux/mfd/da903x.h> 25#include <linux/mtd/mtd.h> 26#include <linux/mtd/partitions.h> 27#include <linux/mtd/onenand.h> 28 29#include <asm/mach-types.h> 30#include <asm/mach/arch.h> 31#include <asm/mach/flash.h> 32 33#include <mach/pxa930.h> 34#include <plat/i2c.h> 35#include <mach/pxafb.h> 36 37#include "devices.h" 38#include "generic.h" 39 40#define GPIO_LCD_RESET (16) 41 42/* SAAR MFP configurations */ 43static mfp_cfg_t saar_mfp_cfg[] __initdata = { 44 /* LCD */ 45 GPIO23_LCD_DD0, 46 GPIO24_LCD_DD1, 47 GPIO25_LCD_DD2, 48 GPIO26_LCD_DD3, 49 GPIO27_LCD_DD4, 50 GPIO28_LCD_DD5, 51 GPIO29_LCD_DD6, 52 GPIO44_LCD_DD7, 53 GPIO21_LCD_CS, 54 GPIO22_LCD_VSYNC, 55 GPIO17_LCD_FCLK_RD, 56 GPIO18_LCD_LCLK_A0, 57 GPIO19_LCD_PCLK_WR, 58 GPIO16_GPIO, /* LCD reset */ 59 60 /* Ethernet */ 61 DF_nCS1_nCS3, 62 GPIO97_GPIO, 63 64 /* DFI */ 65 DF_INT_RnB_ND_INT_RnB, 66 DF_nRE_nOE_ND_nRE, 67 DF_nWE_ND_nWE, 68 DF_CLE_nOE_ND_CLE, 69 DF_nADV1_ALE_ND_ALE, 70 DF_nADV2_ALE_nCS3, 71 DF_nCS0_ND_nCS0, 72 DF_IO0_ND_IO0, 73 DF_IO1_ND_IO1, 74 DF_IO2_ND_IO2, 75 DF_IO3_ND_IO3, 76 DF_IO4_ND_IO4, 77 DF_IO5_ND_IO5, 78 DF_IO6_ND_IO6, 79 DF_IO7_ND_IO7, 80 DF_IO8_ND_IO8, 81 DF_IO9_ND_IO9, 82 DF_IO10_ND_IO10, 83 DF_IO11_ND_IO11, 84 DF_IO12_ND_IO12, 85 DF_IO13_ND_IO13, 86 DF_IO14_ND_IO14, 87 DF_IO15_ND_IO15, 88}; 89 90#define SAAR_ETH_PHYS (0x14000000) 91 92static struct resource smc91x_resources[] = { 93 [0] = { 94 .start = (SAAR_ETH_PHYS + 0x300), 95 .end = (SAAR_ETH_PHYS + 0xfffff), 96 .flags = IORESOURCE_MEM, 97 }, 98 [1] = { 99 .start = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)), 100 .end = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)), 101 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE, 102 } 103}; 104 105static struct smc91x_platdata saar_smc91x_info = { 106 .flags = SMC91X_USE_16BIT | SMC91X_NOWAIT | SMC91X_USE_DMA, 107}; 108 109static struct platform_device smc91x_device = { 110 .name = "smc91x", 111 .id = 0, 112 .num_resources = ARRAY_SIZE(smc91x_resources), 113 .resource = smc91x_resources, 114 .dev = { 115 .platform_data = &saar_smc91x_info, 116 }, 117}; 118 119#if defined(CONFIG_FB_PXA) || CONFIG_FB_PXA_MODULE 120static uint16_t lcd_power_on[] = { 121 /* single frame */ 122 SMART_CMD_NOOP, 123 SMART_CMD(0x00), 124 SMART_DELAY(0), 125 126 SMART_CMD_NOOP, 127 SMART_CMD(0x00), 128 SMART_DELAY(0), 129 130 SMART_CMD_NOOP, 131 SMART_CMD(0x00), 132 SMART_DELAY(0), 133 134 SMART_CMD_NOOP, 135 SMART_CMD(0x00), 136 SMART_DELAY(10), 137 138 /* calibration control */ 139 SMART_CMD(0x00), 140 SMART_CMD(0xA4), 141 SMART_DAT(0x80), 142 SMART_DAT(0x01), 143 SMART_DELAY(150), 144 145 /*Power-On Init sequence*/ 146 SMART_CMD(0x00), /* output ctrl */ 147 SMART_CMD(0x01), 148 SMART_DAT(0x01), 149 SMART_DAT(0x00), 150 SMART_CMD(0x00), /* wave ctrl */ 151 SMART_CMD(0x02), 152 SMART_DAT(0x07), 153 SMART_DAT(0x00), 154 SMART_CMD(0x00), 155 SMART_CMD(0x03), /* entry mode */ 156 SMART_DAT(0xD0), 157 SMART_DAT(0x30), 158 SMART_CMD(0x00), 159 SMART_CMD(0x08), /* display ctrl 2 */ 160 SMART_DAT(0x08), 161 SMART_DAT(0x08), 162 SMART_CMD(0x00), 163 SMART_CMD(0x09), /* display ctrl 3 */ 164 SMART_DAT(0x04), 165 SMART_DAT(0x2F), 166 SMART_CMD(0x00), 167 SMART_CMD(0x0A), /* display ctrl 4 */ 168 SMART_DAT(0x00), 169 SMART_DAT(0x08), 170 SMART_CMD(0x00), 171 SMART_CMD(0x0D), /* Frame Marker position */ 172 SMART_DAT(0x00), 173 SMART_DAT(0x08), 174 SMART_CMD(0x00), 175 SMART_CMD(0x60), /* Driver output control */ 176 SMART_DAT(0x27), 177 SMART_DAT(0x00), 178 SMART_CMD(0x00), 179 SMART_CMD(0x61), /* Base image display control */ 180 SMART_DAT(0x00), 181 SMART_DAT(0x01), 182 SMART_CMD(0x00), 183 SMART_CMD(0x30), /* Y settings 30h-3Dh */ 184 SMART_DAT(0x07), 185 SMART_DAT(0x07), 186 SMART_CMD(0x00), 187 SMART_CMD(0x31), 188 SMART_DAT(0x00), 189 SMART_DAT(0x07), 190 SMART_CMD(0x00), 191 SMART_CMD(0x32), /* Timing(3), ASW HOLD=0.5CLK */ 192 SMART_DAT(0x04), 193 SMART_DAT(0x00), 194 SMART_CMD(0x00), 195 SMART_CMD(0x33), /* Timing(4), CKV ST=0CLK, CKV ED=1CLK */ 196 SMART_DAT(0x03), 197 SMART_DAT(0x03), 198 SMART_CMD(0x00), 199 SMART_CMD(0x34), 200 SMART_DAT(0x00), 201 SMART_DAT(0x00), 202 SMART_CMD(0x00), 203 SMART_CMD(0x35), 204 SMART_DAT(0x02), 205 SMART_DAT(0x05), 206 SMART_CMD(0x00), 207 SMART_CMD(0x36), 208 SMART_DAT(0x1F), 209 SMART_DAT(0x1F), 210 SMART_CMD(0x00), 211 SMART_CMD(0x37), 212 SMART_DAT(0x07), 213 SMART_DAT(0x07), 214 SMART_CMD(0x00), 215 SMART_CMD(0x38), 216 SMART_DAT(0x00), 217 SMART_DAT(0x07), 218 SMART_CMD(0x00), 219 SMART_CMD(0x39), 220 SMART_DAT(0x04), 221 SMART_DAT(0x00), 222 SMART_CMD(0x00), 223 SMART_CMD(0x3A), 224 SMART_DAT(0x03), 225 SMART_DAT(0x03), 226 SMART_CMD(0x00), 227 SMART_CMD(0x3B), 228 SMART_DAT(0x00), 229 SMART_DAT(0x00), 230 SMART_CMD(0x00), 231 SMART_CMD(0x3C), 232 SMART_DAT(0x02), 233 SMART_DAT(0x05), 234 SMART_CMD(0x00), 235 SMART_CMD(0x3D), 236 SMART_DAT(0x1F), 237 SMART_DAT(0x1F), 238 SMART_CMD(0x00), /* Display control 1 */ 239 SMART_CMD(0x07), 240 SMART_DAT(0x00), 241 SMART_DAT(0x01), 242 SMART_CMD(0x00), /* Power control 5 */ 243 SMART_CMD(0x17), 244 SMART_DAT(0x00), 245 SMART_DAT(0x01), 246 SMART_CMD(0x00), /* Power control 1 */ 247 SMART_CMD(0x10), 248 SMART_DAT(0x10), 249 SMART_DAT(0xB0), 250 SMART_CMD(0x00), /* Power control 2 */ 251 SMART_CMD(0x11), 252 SMART_DAT(0x01), 253 SMART_DAT(0x30), 254 SMART_CMD(0x00), /* Power control 3 */ 255 SMART_CMD(0x12), 256 SMART_DAT(0x01), 257 SMART_DAT(0x9E), 258 SMART_CMD(0x00), /* Power control 4 */ 259 SMART_CMD(0x13), 260 SMART_DAT(0x17), 261 SMART_DAT(0x00), 262 SMART_CMD(0x00), /* Power control 3 */ 263 SMART_CMD(0x12), 264 SMART_DAT(0x01), 265 SMART_DAT(0xBE), 266 SMART_DELAY(100), 267 268 /* display mode : 240*320 */ 269 SMART_CMD(0x00), /* RAM address set(H) 0*/ 270 SMART_CMD(0x20), 271 SMART_DAT(0x00), 272 SMART_DAT(0x00), 273 SMART_CMD(0x00), /* RAM address set(V) 4*/ 274 SMART_CMD(0x21), 275 SMART_DAT(0x00), 276 SMART_DAT(0x00), 277 SMART_CMD(0x00), /* Start of Window RAM address set(H) 8*/ 278 SMART_CMD(0x50), 279 SMART_DAT(0x00), 280 SMART_DAT(0x00), 281 SMART_CMD(0x00), /* End of Window RAM address set(H) 12*/ 282 SMART_CMD(0x51), 283 SMART_DAT(0x00), 284 SMART_DAT(0xEF), 285 SMART_CMD(0x00), /* Start of Window RAM address set(V) 16*/ 286 SMART_CMD(0x52), 287 SMART_DAT(0x00), 288 SMART_DAT(0x00), 289 SMART_CMD(0x00), /* End of Window RAM address set(V) 20*/ 290 SMART_CMD(0x53), 291 SMART_DAT(0x01), 292 SMART_DAT(0x3F), 293 SMART_CMD(0x00), /* Panel interface control 1 */ 294 SMART_CMD(0x90), 295 SMART_DAT(0x00), 296 SMART_DAT(0x1A), 297 SMART_CMD(0x00), /* Panel interface control 2 */ 298 SMART_CMD(0x92), 299 SMART_DAT(0x04), 300 SMART_DAT(0x00), 301 SMART_CMD(0x00), /* Panel interface control 3 */ 302 SMART_CMD(0x93), 303 SMART_DAT(0x00), 304 SMART_DAT(0x05), 305 SMART_DELAY(20), 306}; 307 308static uint16_t lcd_panel_on[] = { 309 SMART_CMD(0x00), 310 SMART_CMD(0x07), 311 SMART_DAT(0x00), 312 SMART_DAT(0x21), 313 SMART_DELAY(1), 314 315 SMART_CMD(0x00), 316 SMART_CMD(0x07), 317 SMART_DAT(0x00), 318 SMART_DAT(0x61), 319 SMART_DELAY(100), 320 321 SMART_CMD(0x00), 322 SMART_CMD(0x07), 323 SMART_DAT(0x01), 324 SMART_DAT(0x73), 325 SMART_DELAY(1), 326}; 327 328static uint16_t lcd_panel_off[] = { 329 SMART_CMD(0x00), 330 SMART_CMD(0x07), 331 SMART_DAT(0x00), 332 SMART_DAT(0x72), 333 SMART_DELAY(40), 334 335 SMART_CMD(0x00), 336 SMART_CMD(0x07), 337 SMART_DAT(0x00), 338 SMART_DAT(0x01), 339 SMART_DELAY(1), 340 341 SMART_CMD(0x00), 342 SMART_CMD(0x07), 343 SMART_DAT(0x00), 344 SMART_DAT(0x00), 345 SMART_DELAY(1), 346}; 347 348static uint16_t lcd_power_off[] = { 349 SMART_CMD(0x00), 350 SMART_CMD(0x10), 351 SMART_DAT(0x00), 352 SMART_DAT(0x80), 353 354 SMART_CMD(0x00), 355 SMART_CMD(0x11), 356 SMART_DAT(0x01), 357 SMART_DAT(0x60), 358 359 SMART_CMD(0x00), 360 SMART_CMD(0x12), 361 SMART_DAT(0x01), 362 SMART_DAT(0xAE), 363 SMART_DELAY(40), 364 365 SMART_CMD(0x00), 366 SMART_CMD(0x10), 367 SMART_DAT(0x00), 368 SMART_DAT(0x00), 369}; 370 371static uint16_t update_framedata[] = { 372 /* set display ram: 240*320 */ 373 SMART_CMD(0x00), /* RAM address set(H) 0*/ 374 SMART_CMD(0x20), 375 SMART_DAT(0x00), 376 SMART_DAT(0x00), 377 SMART_CMD(0x00), /* RAM address set(V) 4*/ 378 SMART_CMD(0x21), 379 SMART_DAT(0x00), 380 SMART_DAT(0x00), 381 SMART_CMD(0x00), /* Start of Window RAM address set(H) 8 */ 382 SMART_CMD(0x50), 383 SMART_DAT(0x00), 384 SMART_DAT(0x00), 385 SMART_CMD(0x00), /* End of Window RAM address set(H) 12 */ 386 SMART_CMD(0x51), 387 SMART_DAT(0x00), 388 SMART_DAT(0xEF), 389 SMART_CMD(0x00), /* Start of Window RAM address set(V) 16 */ 390 SMART_CMD(0x52), 391 SMART_DAT(0x00), 392 SMART_DAT(0x00), 393 SMART_CMD(0x00), /* End of Window RAM address set(V) 20 */ 394 SMART_CMD(0x53), 395 SMART_DAT(0x01), 396 SMART_DAT(0x3F), 397 398 /* wait for vsync cmd before transferring frame data */ 399 SMART_CMD_WAIT_FOR_VSYNC, 400 401 /* write ram */ 402 SMART_CMD(0x00), 403 SMART_CMD(0x22), 404 405 /* write frame data */ 406 SMART_CMD_WRITE_FRAME, 407}; 408 409static void ltm022a97a_lcd_power(int on, struct fb_var_screeninfo *var) 410{ 411 static int pin_requested = 0; 412 struct fb_info *info = container_of(var, struct fb_info, var); 413 int err; 414 415 if (!pin_requested) { 416 err = gpio_request(GPIO_LCD_RESET, "lcd reset"); 417 if (err) { 418 pr_err("failed to request gpio for LCD reset\n"); 419 return; 420 } 421 422 gpio_direction_output(GPIO_LCD_RESET, 0); 423 pin_requested = 1; 424 } 425 426 if (on) { 427 gpio_set_value(GPIO_LCD_RESET, 0); msleep(100); 428 gpio_set_value(GPIO_LCD_RESET, 1); msleep(10); 429 430 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_on)); 431 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_on)); 432 } else { 433 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_panel_off)); 434 pxafb_smart_queue(info, ARRAY_AND_SIZE(lcd_power_off)); 435 } 436 437 err = pxafb_smart_flush(info); 438 if (err) 439 pr_err("%s: timed out\n", __func__); 440} 441 442static void ltm022a97a_update(struct fb_info *info) 443{ 444 pxafb_smart_queue(info, ARRAY_AND_SIZE(update_framedata)); 445 pxafb_smart_flush(info); 446} 447 448static struct pxafb_mode_info toshiba_ltm022a97a_modes[] = { 449 [0] = { 450 .xres = 240, 451 .yres = 320, 452 .bpp = 16, 453 .a0csrd_set_hld = 30, 454 .a0cswr_set_hld = 30, 455 .wr_pulse_width = 30, 456 .rd_pulse_width = 30, 457 .op_hold_time = 30, 458 .cmd_inh_time = 60, 459 460 /* L_LCLK_A0 and L_LCLK_RD active low */ 461 .sync = FB_SYNC_HOR_HIGH_ACT | 462 FB_SYNC_VERT_HIGH_ACT, 463 }, 464}; 465 466static struct pxafb_mach_info saar_lcd_info = { 467 .modes = toshiba_ltm022a97a_modes, 468 .num_modes = 1, 469 .lcd_conn = LCD_SMART_PANEL_8BPP | LCD_PCLK_EDGE_FALL, 470 .pxafb_lcd_power = ltm022a97a_lcd_power, 471 .smart_update = ltm022a97a_update, 472}; 473 474static void __init saar_init_lcd(void) 475{ 476 set_pxa_fb_info(&saar_lcd_info); 477} 478#else 479static inline void saar_init_lcd(void) {} 480#endif 481 482#if defined(CONFIG_I2C_PXA) || defined(CONFIG_I2C_PXA_MODULE) 483static struct da9034_backlight_pdata saar_da9034_backlight = { 484 .output_current = 4, /* 4mA */ 485}; 486 487static struct da903x_subdev_info saar_da9034_subdevs[] = { 488 [0] = { 489 .name = "da903x-backlight", 490 .id = DA9034_ID_WLED, 491 .platform_data = &saar_da9034_backlight, 492 }, 493}; 494 495static struct da903x_platform_data saar_da9034_info = { 496 .num_subdevs = ARRAY_SIZE(saar_da9034_subdevs), 497 .subdevs = saar_da9034_subdevs, 498}; 499 500static struct i2c_board_info saar_i2c_info[] = { 501 [0] = { 502 .type = "da9034", 503 .addr = 0x34, 504 .platform_data = &saar_da9034_info, 505 .irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)), 506 }, 507}; 508 509static void __init saar_init_i2c(void) 510{ 511 pxa_set_i2c_info(NULL); 512 i2c_register_board_info(0, ARRAY_AND_SIZE(saar_i2c_info)); 513} 514#else 515static inline void saar_init_i2c(void) {} 516#endif 517 518#if defined(CONFIG_MTD_ONENAND) || defined(CONFIG_MTD_ONENAND_MODULE) 519static struct mtd_partition saar_onenand_partitions[] = { 520 { 521 .name = "bootloader", 522 .offset = 0, 523 .size = SZ_1M, 524 .mask_flags = MTD_WRITEABLE, 525 }, { 526 .name = "reserved", 527 .offset = MTDPART_OFS_APPEND, 528 .size = SZ_128K, 529 .mask_flags = MTD_WRITEABLE, 530 }, { 531 .name = "reserved", 532 .offset = MTDPART_OFS_APPEND, 533 .size = SZ_8M, 534 .mask_flags = MTD_WRITEABLE, 535 }, { 536 .name = "kernel", 537 .offset = MTDPART_OFS_APPEND, 538 .size = (SZ_2M + SZ_1M), 539 .mask_flags = 0, 540 }, { 541 .name = "filesystem", 542 .offset = MTDPART_OFS_APPEND, 543 .size = SZ_48M, 544 .mask_flags = 0, 545 } 546}; 547 548static struct onenand_platform_data saar_onenand_info = { 549 .parts = saar_onenand_partitions, 550 .nr_parts = ARRAY_SIZE(saar_onenand_partitions), 551}; 552 553#define SMC_CS0_PHYS_BASE (0x10000000) 554 555static struct resource saar_resource_onenand[] = { 556 [0] = { 557 .start = SMC_CS0_PHYS_BASE, 558 .end = SMC_CS0_PHYS_BASE + SZ_1M, 559 .flags = IORESOURCE_MEM, 560 }, 561}; 562 563static struct platform_device saar_device_onenand = { 564 .name = "onenand-flash", 565 .id = -1, 566 .dev = { 567 .platform_data = &saar_onenand_info, 568 }, 569 .resource = saar_resource_onenand, 570 .num_resources = ARRAY_SIZE(saar_resource_onenand), 571}; 572 573static void __init saar_init_onenand(void) 574{ 575 platform_device_register(&saar_device_onenand); 576} 577#else 578static void __init saar_init_onenand(void) {} 579#endif 580 581static void __init saar_init(void) 582{ 583 /* initialize MFP configurations */ 584 pxa3xx_mfp_config(ARRAY_AND_SIZE(saar_mfp_cfg)); 585 586 pxa_set_ffuart_info(NULL); 587 pxa_set_btuart_info(NULL); 588 pxa_set_stuart_info(NULL); 589 590 platform_device_register(&smc91x_device); 591 saar_init_onenand(); 592 593 saar_init_i2c(); 594 saar_init_lcd(); 595} 596 597MACHINE_START(SAAR, "PXA930 Handheld Platform (aka SAAR)") 598 /* Maintainer: Eric Miao <eric.miao@marvell.com> */ 599 .phys_io = 0x40000000, 600 .boot_params = 0xa0000100, 601 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc, 602 .map_io = pxa_map_io, 603 .init_irq = pxa3xx_init_irq, 604 .timer = &pxa_timer, 605 .init_machine = saar_init, 606MACHINE_END 607