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[tomato.git] / release / src-rt-6.x.4708 / linux / linux-2.6.36 / arch / arm / mach-pxa / mainstone.c
blobc49b133c301f7bfa2817e14f7901cfd4b4d784d9
1 /*
2 * linux/arch/arm/mach-pxa/mainstone.c
4 * Support for the Intel HCDDBBVA0 Development Platform.
5 * (go figure how they came up with such name...)
7 * Author: Nicolas Pitre
8 * Created: Nov 05, 2002
9 * Copyright: MontaVista Software Inc.
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License version 2 as
13 * published by the Free Software Foundation.
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/sysdev.h>
19 #include <linux/interrupt.h>
20 #include <linux/sched.h>
21 #include <linux/bitops.h>
22 #include <linux/fb.h>
23 #include <linux/ioport.h>
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/partitions.h>
26 #include <linux/input.h>
27 #include <linux/gpio_keys.h>
28 #include <linux/pwm_backlight.h>
29 #include <linux/smc91x.h>
31 #include <asm/types.h>
32 #include <asm/setup.h>
33 #include <asm/memory.h>
34 #include <asm/mach-types.h>
35 #include <mach/hardware.h>
36 #include <asm/irq.h>
37 #include <asm/sizes.h>
39 #include <asm/mach/arch.h>
40 #include <asm/mach/map.h>
41 #include <asm/mach/irq.h>
42 #include <asm/mach/flash.h>
44 #include <mach/pxa27x.h>
45 #include <mach/gpio.h>
46 #include <mach/mainstone.h>
47 #include <mach/audio.h>
48 #include <mach/pxafb.h>
49 #include <plat/i2c.h>
50 #include <mach/mmc.h>
51 #include <mach/irda.h>
52 #include <mach/ohci.h>
53 #include <mach/pxa27x_keypad.h>
55 #include "generic.h"
56 #include "devices.h"
58 static unsigned long mainstone_pin_config[] = {
59 /* Chip Select */
60 GPIO15_nCS_1,
62 /* LCD - 16bpp Active TFT */
63 GPIOxx_LCD_TFT_16BPP,
64 GPIO16_PWM0_OUT, /* Backlight */
66 /* MMC */
67 GPIO32_MMC_CLK,
68 GPIO112_MMC_CMD,
69 GPIO92_MMC_DAT_0,
70 GPIO109_MMC_DAT_1,
71 GPIO110_MMC_DAT_2,
72 GPIO111_MMC_DAT_3,
74 /* USB Host Port 1 */
75 GPIO88_USBH1_PWR,
76 GPIO89_USBH1_PEN,
78 /* PC Card */
79 GPIO48_nPOE,
80 GPIO49_nPWE,
81 GPIO50_nPIOR,
82 GPIO51_nPIOW,
83 GPIO85_nPCE_1,
84 GPIO54_nPCE_2,
85 GPIO79_PSKTSEL,
86 GPIO55_nPREG,
87 GPIO56_nPWAIT,
88 GPIO57_nIOIS16,
90 /* AC97 */
91 GPIO28_AC97_BITCLK,
92 GPIO29_AC97_SDATA_IN_0,
93 GPIO30_AC97_SDATA_OUT,
94 GPIO31_AC97_SYNC,
95 GPIO45_AC97_SYSCLK,
97 /* Keypad */
98 GPIO93_KP_DKIN_0,
99 GPIO94_KP_DKIN_1,
100 GPIO95_KP_DKIN_2,
101 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
102 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
103 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
104 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
105 GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
106 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
107 GPIO103_KP_MKOUT_0,
108 GPIO104_KP_MKOUT_1,
109 GPIO105_KP_MKOUT_2,
110 GPIO106_KP_MKOUT_3,
111 GPIO107_KP_MKOUT_4,
112 GPIO108_KP_MKOUT_5,
113 GPIO96_KP_MKOUT_6,
115 /* I2C */
116 GPIO117_I2C_SCL,
117 GPIO118_I2C_SDA,
119 /* GPIO */
120 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
123 static unsigned long mainstone_irq_enabled;
125 static void mainstone_mask_irq(unsigned int irq)
127 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
128 MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
131 static void mainstone_unmask_irq(unsigned int irq)
133 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
134 /* the irq can be acknowledged only if deasserted, so it's done here */
135 MST_INTSETCLR &= ~(1 << mainstone_irq);
136 MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
139 static struct irq_chip mainstone_irq_chip = {
140 .name = "FPGA",
141 .ack = mainstone_mask_irq,
142 .mask = mainstone_mask_irq,
143 .unmask = mainstone_unmask_irq,
146 static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
148 unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
149 do {
150 desc->chip->ack(irq); /* clear useless edge notification */
151 if (likely(pending)) {
152 irq = MAINSTONE_IRQ(0) + __ffs(pending);
153 generic_handle_irq(irq);
155 pending = MST_INTSETCLR & mainstone_irq_enabled;
156 } while (pending);
159 static void __init mainstone_init_irq(void)
161 int irq;
163 pxa27x_init_irq();
165 /* setup extra Mainstone irqs */
166 for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
167 set_irq_chip(irq, &mainstone_irq_chip);
168 set_irq_handler(irq, handle_level_irq);
169 if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
170 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
171 else
172 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
174 set_irq_flags(MAINSTONE_IRQ(8), 0);
175 set_irq_flags(MAINSTONE_IRQ(12), 0);
177 MST_INTMSKENA = 0;
178 MST_INTSETCLR = 0;
180 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
181 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
184 #ifdef CONFIG_PM
186 static int mainstone_irq_resume(struct sys_device *dev)
188 MST_INTMSKENA = mainstone_irq_enabled;
189 return 0;
192 static struct sysdev_class mainstone_irq_sysclass = {
193 .name = "cpld_irq",
194 .resume = mainstone_irq_resume,
197 static struct sys_device mainstone_irq_device = {
198 .cls = &mainstone_irq_sysclass,
201 static int __init mainstone_irq_device_init(void)
203 int ret = -ENODEV;
205 if (machine_is_mainstone()) {
206 ret = sysdev_class_register(&mainstone_irq_sysclass);
207 if (ret == 0)
208 ret = sysdev_register(&mainstone_irq_device);
210 return ret;
213 device_initcall(mainstone_irq_device_init);
215 #endif
218 static struct resource smc91x_resources[] = {
219 [0] = {
220 .start = (MST_ETH_PHYS + 0x300),
221 .end = (MST_ETH_PHYS + 0xfffff),
222 .flags = IORESOURCE_MEM,
224 [1] = {
225 .start = MAINSTONE_IRQ(3),
226 .end = MAINSTONE_IRQ(3),
227 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
231 static struct smc91x_platdata mainstone_smc91x_info = {
232 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
233 SMC91X_NOWAIT | SMC91X_USE_DMA,
236 static struct platform_device smc91x_device = {
237 .name = "smc91x",
238 .id = 0,
239 .num_resources = ARRAY_SIZE(smc91x_resources),
240 .resource = smc91x_resources,
241 .dev = {
242 .platform_data = &mainstone_smc91x_info,
246 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
248 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
249 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
250 return 0;
253 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
255 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
256 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
259 static long mst_audio_suspend_mask;
261 static void mst_audio_suspend(void *priv)
263 mst_audio_suspend_mask = MST_MSCWR2;
264 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
267 static void mst_audio_resume(void *priv)
269 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
272 static pxa2xx_audio_ops_t mst_audio_ops = {
273 .startup = mst_audio_startup,
274 .shutdown = mst_audio_shutdown,
275 .suspend = mst_audio_suspend,
276 .resume = mst_audio_resume,
279 static struct resource flash_resources[] = {
280 [0] = {
281 .start = PXA_CS0_PHYS,
282 .end = PXA_CS0_PHYS + SZ_64M - 1,
283 .flags = IORESOURCE_MEM,
285 [1] = {
286 .start = PXA_CS1_PHYS,
287 .end = PXA_CS1_PHYS + SZ_64M - 1,
288 .flags = IORESOURCE_MEM,
292 static struct mtd_partition mainstoneflash0_partitions[] = {
294 .name = "Bootloader",
295 .size = 0x00040000,
296 .offset = 0,
297 .mask_flags = MTD_WRITEABLE /* force read-only */
299 .name = "Kernel",
300 .size = 0x00400000,
301 .offset = 0x00040000,
303 .name = "Filesystem",
304 .size = MTDPART_SIZ_FULL,
305 .offset = 0x00440000
309 static struct flash_platform_data mst_flash_data[2] = {
311 .map_name = "cfi_probe",
312 .parts = mainstoneflash0_partitions,
313 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
314 }, {
315 .map_name = "cfi_probe",
316 .parts = NULL,
317 .nr_parts = 0,
321 static struct platform_device mst_flash_device[2] = {
323 .name = "pxa2xx-flash",
324 .id = 0,
325 .dev = {
326 .platform_data = &mst_flash_data[0],
328 .resource = &flash_resources[0],
329 .num_resources = 1,
332 .name = "pxa2xx-flash",
333 .id = 1,
334 .dev = {
335 .platform_data = &mst_flash_data[1],
337 .resource = &flash_resources[1],
338 .num_resources = 1,
342 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
343 static struct platform_pwm_backlight_data mainstone_backlight_data = {
344 .pwm_id = 0,
345 .max_brightness = 1023,
346 .dft_brightness = 1023,
347 .pwm_period_ns = 78770,
350 static struct platform_device mainstone_backlight_device = {
351 .name = "pwm-backlight",
352 .dev = {
353 .parent = &pxa27x_device_pwm0.dev,
354 .platform_data = &mainstone_backlight_data,
358 static void __init mainstone_backlight_register(void)
360 int ret = platform_device_register(&mainstone_backlight_device);
361 if (ret)
362 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
364 #else
365 #define mainstone_backlight_register() do { } while (0)
366 #endif
368 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
369 .pixclock = 50000,
370 .xres = 640,
371 .yres = 480,
372 .bpp = 16,
373 .hsync_len = 1,
374 .left_margin = 0x9f,
375 .right_margin = 1,
376 .vsync_len = 44,
377 .upper_margin = 0,
378 .lower_margin = 0,
379 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
382 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
383 .pixclock = 110000,
384 .xres = 240,
385 .yres = 320,
386 .bpp = 16,
387 .hsync_len = 4,
388 .left_margin = 8,
389 .right_margin = 20,
390 .vsync_len = 3,
391 .upper_margin = 1,
392 .lower_margin = 10,
393 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
396 static struct pxafb_mach_info mainstone_pxafb_info = {
397 .num_modes = 1,
398 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
401 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
403 int err;
405 /* make sure SD/Memory Stick multiplexer's signals
406 * are routed to MMC controller
408 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
410 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
411 "MMC card detect", data);
412 if (err)
413 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
415 return err;
418 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
420 struct pxamci_platform_data* p_d = dev->platform_data;
422 if (( 1 << vdd) & p_d->ocr_mask) {
423 printk(KERN_DEBUG "%s: on\n", __func__);
424 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
425 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
426 } else {
427 printk(KERN_DEBUG "%s: off\n", __func__);
428 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
432 static void mainstone_mci_exit(struct device *dev, void *data)
434 free_irq(MAINSTONE_MMC_IRQ, data);
437 static struct pxamci_platform_data mainstone_mci_platform_data = {
438 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
439 .init = mainstone_mci_init,
440 .setpower = mainstone_mci_setpower,
441 .exit = mainstone_mci_exit,
442 .gpio_card_detect = -1,
443 .gpio_card_ro = -1,
444 .gpio_power = -1,
447 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
449 unsigned long flags;
451 local_irq_save(flags);
452 if (mode & IR_SIRMODE) {
453 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
454 } else if (mode & IR_FIRMODE) {
455 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
457 pxa2xx_transceiver_mode(dev, mode);
458 if (mode & IR_OFF) {
459 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
460 } else {
461 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
463 local_irq_restore(flags);
466 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
467 .gpio_pwdown = -1,
468 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
469 .transceiver_mode = mainstone_irda_transceiver_mode,
472 static struct gpio_keys_button gpio_keys_button[] = {
473 [0] = {
474 .desc = "wakeup",
475 .code = KEY_SUSPEND,
476 .type = EV_KEY,
477 .gpio = 1,
478 .wakeup = 1,
482 static struct gpio_keys_platform_data mainstone_gpio_keys = {
483 .buttons = gpio_keys_button,
484 .nbuttons = 1,
487 static struct platform_device mst_gpio_keys_device = {
488 .name = "gpio-keys",
489 .id = -1,
490 .dev = {
491 .platform_data = &mainstone_gpio_keys,
495 static struct platform_device *platform_devices[] __initdata = {
496 &smc91x_device,
497 &mst_flash_device[0],
498 &mst_flash_device[1],
499 &mst_gpio_keys_device,
502 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
503 .port_mode = PMM_PERPORT_MODE,
504 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
507 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
508 static unsigned int mainstone_matrix_keys[] = {
509 KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
510 KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
511 KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
512 KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
513 KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
514 KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
515 KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
516 KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
517 KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
519 KEY(0, 4, KEY_DOT), /* . */
520 KEY(1, 4, KEY_CLOSE), /* @ */
521 KEY(4, 4, KEY_SLASH),
522 KEY(5, 4, KEY_BACKSLASH),
523 KEY(0, 5, KEY_HOME),
524 KEY(1, 5, KEY_LEFTSHIFT),
525 KEY(2, 5, KEY_SPACE),
526 KEY(3, 5, KEY_SPACE),
527 KEY(4, 5, KEY_ENTER),
528 KEY(5, 5, KEY_BACKSPACE),
530 KEY(0, 6, KEY_UP),
531 KEY(1, 6, KEY_DOWN),
532 KEY(2, 6, KEY_LEFT),
533 KEY(3, 6, KEY_RIGHT),
534 KEY(4, 6, KEY_SELECT),
537 struct pxa27x_keypad_platform_data mainstone_keypad_info = {
538 .matrix_key_rows = 6,
539 .matrix_key_cols = 7,
540 .matrix_key_map = mainstone_matrix_keys,
541 .matrix_key_map_size = ARRAY_SIZE(mainstone_matrix_keys),
543 .enable_rotary0 = 1,
544 .rotary0_up_key = KEY_UP,
545 .rotary0_down_key = KEY_DOWN,
547 .debounce_interval = 30,
550 static void __init mainstone_init_keypad(void)
552 pxa_set_keypad_info(&mainstone_keypad_info);
554 #else
555 static inline void mainstone_init_keypad(void) {}
556 #endif
558 static void __init mainstone_init(void)
560 int SW7 = 0;
562 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
564 pxa_set_ffuart_info(NULL);
565 pxa_set_btuart_info(NULL);
566 pxa_set_stuart_info(NULL);
568 mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
569 mst_flash_data[1].width = 4;
571 /* Compensate for SW7 which swaps the flash banks */
572 mst_flash_data[SW7].name = "processor-flash";
573 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
575 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
576 mst_flash_data[0].name);
578 /* system bus arbiter setting
579 * - Core_Park
580 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
582 ARB_CNTRL = ARB_CORE_PARK | 0x234;
584 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
586 /* reading Mainstone's "Virtual Configuration Register"
587 might be handy to select LCD type here */
588 if (0)
589 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
590 else
591 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
593 set_pxa_fb_info(&mainstone_pxafb_info);
594 mainstone_backlight_register();
596 pxa_set_mci_info(&mainstone_mci_platform_data);
597 pxa_set_ficp_info(&mainstone_ficp_platform_data);
598 pxa_set_ohci_info(&mainstone_ohci_platform_data);
599 pxa_set_i2c_info(NULL);
600 pxa_set_ac97_info(&mst_audio_ops);
602 mainstone_init_keypad();
606 static struct map_desc mainstone_io_desc[] __initdata = {
607 { /* CPLD */
608 .virtual = MST_FPGA_VIRT,
609 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
610 .length = 0x00100000,
611 .type = MT_DEVICE
615 static void __init mainstone_map_io(void)
617 pxa_map_io();
618 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
620 /* for use I SRAM as framebuffer. */
621 PSLR |= 0xF04;
622 PCFR = 0x66;
625 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
626 /* Maintainer: MontaVista Software Inc. */
627 .phys_io = 0x40000000,
628 .boot_params = 0xa0000100, /* BLOB boot parameter setting */
629 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
630 .map_io = mainstone_map_io,
631 .init_irq = mainstone_init_irq,
632 .timer = &pxa_timer,
633 .init_machine = mainstone_init,
634 MACHINE_END