Merge branch 'devel-stable' into devel
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / arm / mach-pxa / mainstone.c
blob740c03590e3b89d513b8c22eb29facd60b78e75d
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 <plat/pxa27x_keypad.h>
54 #include <mach/smemc.h>
56 #include "generic.h"
57 #include "devices.h"
59 static unsigned long mainstone_pin_config[] = {
60 /* Chip Select */
61 GPIO15_nCS_1,
63 /* LCD - 16bpp Active TFT */
64 GPIOxx_LCD_TFT_16BPP,
65 GPIO16_PWM0_OUT, /* Backlight */
67 /* MMC */
68 GPIO32_MMC_CLK,
69 GPIO112_MMC_CMD,
70 GPIO92_MMC_DAT_0,
71 GPIO109_MMC_DAT_1,
72 GPIO110_MMC_DAT_2,
73 GPIO111_MMC_DAT_3,
75 /* USB Host Port 1 */
76 GPIO88_USBH1_PWR,
77 GPIO89_USBH1_PEN,
79 /* PC Card */
80 GPIO48_nPOE,
81 GPIO49_nPWE,
82 GPIO50_nPIOR,
83 GPIO51_nPIOW,
84 GPIO85_nPCE_1,
85 GPIO54_nPCE_2,
86 GPIO79_PSKTSEL,
87 GPIO55_nPREG,
88 GPIO56_nPWAIT,
89 GPIO57_nIOIS16,
91 /* AC97 */
92 GPIO28_AC97_BITCLK,
93 GPIO29_AC97_SDATA_IN_0,
94 GPIO30_AC97_SDATA_OUT,
95 GPIO31_AC97_SYNC,
96 GPIO45_AC97_SYSCLK,
98 /* Keypad */
99 GPIO93_KP_DKIN_0,
100 GPIO94_KP_DKIN_1,
101 GPIO95_KP_DKIN_2,
102 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
103 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
104 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
105 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
106 GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
107 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
108 GPIO103_KP_MKOUT_0,
109 GPIO104_KP_MKOUT_1,
110 GPIO105_KP_MKOUT_2,
111 GPIO106_KP_MKOUT_3,
112 GPIO107_KP_MKOUT_4,
113 GPIO108_KP_MKOUT_5,
114 GPIO96_KP_MKOUT_6,
116 /* I2C */
117 GPIO117_I2C_SCL,
118 GPIO118_I2C_SDA,
120 /* GPIO */
121 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
124 static unsigned long mainstone_irq_enabled;
126 static void mainstone_mask_irq(unsigned int irq)
128 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
129 MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
132 static void mainstone_unmask_irq(unsigned int irq)
134 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
135 /* the irq can be acknowledged only if deasserted, so it's done here */
136 MST_INTSETCLR &= ~(1 << mainstone_irq);
137 MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
140 static struct irq_chip mainstone_irq_chip = {
141 .name = "FPGA",
142 .ack = mainstone_mask_irq,
143 .mask = mainstone_mask_irq,
144 .unmask = mainstone_unmask_irq,
147 static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
149 unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
150 do {
151 desc->chip->ack(irq); /* clear useless edge notification */
152 if (likely(pending)) {
153 irq = MAINSTONE_IRQ(0) + __ffs(pending);
154 generic_handle_irq(irq);
156 pending = MST_INTSETCLR & mainstone_irq_enabled;
157 } while (pending);
160 static void __init mainstone_init_irq(void)
162 int irq;
164 pxa27x_init_irq();
166 /* setup extra Mainstone irqs */
167 for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
168 set_irq_chip(irq, &mainstone_irq_chip);
169 set_irq_handler(irq, handle_level_irq);
170 if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
171 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
172 else
173 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
175 set_irq_flags(MAINSTONE_IRQ(8), 0);
176 set_irq_flags(MAINSTONE_IRQ(12), 0);
178 MST_INTMSKENA = 0;
179 MST_INTSETCLR = 0;
181 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
182 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
185 #ifdef CONFIG_PM
187 static int mainstone_irq_resume(struct sys_device *dev)
189 MST_INTMSKENA = mainstone_irq_enabled;
190 return 0;
193 static struct sysdev_class mainstone_irq_sysclass = {
194 .name = "cpld_irq",
195 .resume = mainstone_irq_resume,
198 static struct sys_device mainstone_irq_device = {
199 .cls = &mainstone_irq_sysclass,
202 static int __init mainstone_irq_device_init(void)
204 int ret = -ENODEV;
206 if (machine_is_mainstone()) {
207 ret = sysdev_class_register(&mainstone_irq_sysclass);
208 if (ret == 0)
209 ret = sysdev_register(&mainstone_irq_device);
211 return ret;
214 device_initcall(mainstone_irq_device_init);
216 #endif
219 static struct resource smc91x_resources[] = {
220 [0] = {
221 .start = (MST_ETH_PHYS + 0x300),
222 .end = (MST_ETH_PHYS + 0xfffff),
223 .flags = IORESOURCE_MEM,
225 [1] = {
226 .start = MAINSTONE_IRQ(3),
227 .end = MAINSTONE_IRQ(3),
228 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
232 static struct smc91x_platdata mainstone_smc91x_info = {
233 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
234 SMC91X_NOWAIT | SMC91X_USE_DMA,
237 static struct platform_device smc91x_device = {
238 .name = "smc91x",
239 .id = 0,
240 .num_resources = ARRAY_SIZE(smc91x_resources),
241 .resource = smc91x_resources,
242 .dev = {
243 .platform_data = &mainstone_smc91x_info,
247 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
249 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
250 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
251 return 0;
254 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
256 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
257 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
260 static long mst_audio_suspend_mask;
262 static void mst_audio_suspend(void *priv)
264 mst_audio_suspend_mask = MST_MSCWR2;
265 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
268 static void mst_audio_resume(void *priv)
270 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
273 static pxa2xx_audio_ops_t mst_audio_ops = {
274 .startup = mst_audio_startup,
275 .shutdown = mst_audio_shutdown,
276 .suspend = mst_audio_suspend,
277 .resume = mst_audio_resume,
280 static struct resource flash_resources[] = {
281 [0] = {
282 .start = PXA_CS0_PHYS,
283 .end = PXA_CS0_PHYS + SZ_64M - 1,
284 .flags = IORESOURCE_MEM,
286 [1] = {
287 .start = PXA_CS1_PHYS,
288 .end = PXA_CS1_PHYS + SZ_64M - 1,
289 .flags = IORESOURCE_MEM,
293 static struct mtd_partition mainstoneflash0_partitions[] = {
295 .name = "Bootloader",
296 .size = 0x00040000,
297 .offset = 0,
298 .mask_flags = MTD_WRITEABLE /* force read-only */
300 .name = "Kernel",
301 .size = 0x00400000,
302 .offset = 0x00040000,
304 .name = "Filesystem",
305 .size = MTDPART_SIZ_FULL,
306 .offset = 0x00440000
310 static struct flash_platform_data mst_flash_data[2] = {
312 .map_name = "cfi_probe",
313 .parts = mainstoneflash0_partitions,
314 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
315 }, {
316 .map_name = "cfi_probe",
317 .parts = NULL,
318 .nr_parts = 0,
322 static struct platform_device mst_flash_device[2] = {
324 .name = "pxa2xx-flash",
325 .id = 0,
326 .dev = {
327 .platform_data = &mst_flash_data[0],
329 .resource = &flash_resources[0],
330 .num_resources = 1,
333 .name = "pxa2xx-flash",
334 .id = 1,
335 .dev = {
336 .platform_data = &mst_flash_data[1],
338 .resource = &flash_resources[1],
339 .num_resources = 1,
343 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
344 static struct platform_pwm_backlight_data mainstone_backlight_data = {
345 .pwm_id = 0,
346 .max_brightness = 1023,
347 .dft_brightness = 1023,
348 .pwm_period_ns = 78770,
351 static struct platform_device mainstone_backlight_device = {
352 .name = "pwm-backlight",
353 .dev = {
354 .parent = &pxa27x_device_pwm0.dev,
355 .platform_data = &mainstone_backlight_data,
359 static void __init mainstone_backlight_register(void)
361 int ret = platform_device_register(&mainstone_backlight_device);
362 if (ret)
363 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
365 #else
366 #define mainstone_backlight_register() do { } while (0)
367 #endif
369 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
370 .pixclock = 50000,
371 .xres = 640,
372 .yres = 480,
373 .bpp = 16,
374 .hsync_len = 1,
375 .left_margin = 0x9f,
376 .right_margin = 1,
377 .vsync_len = 44,
378 .upper_margin = 0,
379 .lower_margin = 0,
380 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
383 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
384 .pixclock = 110000,
385 .xres = 240,
386 .yres = 320,
387 .bpp = 16,
388 .hsync_len = 4,
389 .left_margin = 8,
390 .right_margin = 20,
391 .vsync_len = 3,
392 .upper_margin = 1,
393 .lower_margin = 10,
394 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
397 static struct pxafb_mach_info mainstone_pxafb_info = {
398 .num_modes = 1,
399 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
402 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
404 int err;
406 /* make sure SD/Memory Stick multiplexer's signals
407 * are routed to MMC controller
409 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
411 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
412 "MMC card detect", data);
413 if (err)
414 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
416 return err;
419 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
421 struct pxamci_platform_data* p_d = dev->platform_data;
423 if (( 1 << vdd) & p_d->ocr_mask) {
424 printk(KERN_DEBUG "%s: on\n", __func__);
425 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
426 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
427 } else {
428 printk(KERN_DEBUG "%s: off\n", __func__);
429 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
433 static void mainstone_mci_exit(struct device *dev, void *data)
435 free_irq(MAINSTONE_MMC_IRQ, data);
438 static struct pxamci_platform_data mainstone_mci_platform_data = {
439 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
440 .init = mainstone_mci_init,
441 .setpower = mainstone_mci_setpower,
442 .exit = mainstone_mci_exit,
443 .gpio_card_detect = -1,
444 .gpio_card_ro = -1,
445 .gpio_power = -1,
448 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
450 unsigned long flags;
452 local_irq_save(flags);
453 if (mode & IR_SIRMODE) {
454 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
455 } else if (mode & IR_FIRMODE) {
456 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
458 pxa2xx_transceiver_mode(dev, mode);
459 if (mode & IR_OFF) {
460 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
461 } else {
462 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
464 local_irq_restore(flags);
467 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
468 .gpio_pwdown = -1,
469 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
470 .transceiver_mode = mainstone_irda_transceiver_mode,
473 static struct gpio_keys_button gpio_keys_button[] = {
474 [0] = {
475 .desc = "wakeup",
476 .code = KEY_SUSPEND,
477 .type = EV_KEY,
478 .gpio = 1,
479 .wakeup = 1,
483 static struct gpio_keys_platform_data mainstone_gpio_keys = {
484 .buttons = gpio_keys_button,
485 .nbuttons = 1,
488 static struct platform_device mst_gpio_keys_device = {
489 .name = "gpio-keys",
490 .id = -1,
491 .dev = {
492 .platform_data = &mainstone_gpio_keys,
496 static struct platform_device *platform_devices[] __initdata = {
497 &smc91x_device,
498 &mst_flash_device[0],
499 &mst_flash_device[1],
500 &mst_gpio_keys_device,
503 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
504 .port_mode = PMM_PERPORT_MODE,
505 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
508 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
509 static unsigned int mainstone_matrix_keys[] = {
510 KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
511 KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
512 KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
513 KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
514 KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
515 KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
516 KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
517 KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
518 KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
520 KEY(0, 4, KEY_DOT), /* . */
521 KEY(1, 4, KEY_CLOSE), /* @ */
522 KEY(4, 4, KEY_SLASH),
523 KEY(5, 4, KEY_BACKSLASH),
524 KEY(0, 5, KEY_HOME),
525 KEY(1, 5, KEY_LEFTSHIFT),
526 KEY(2, 5, KEY_SPACE),
527 KEY(3, 5, KEY_SPACE),
528 KEY(4, 5, KEY_ENTER),
529 KEY(5, 5, KEY_BACKSPACE),
531 KEY(0, 6, KEY_UP),
532 KEY(1, 6, KEY_DOWN),
533 KEY(2, 6, KEY_LEFT),
534 KEY(3, 6, KEY_RIGHT),
535 KEY(4, 6, KEY_SELECT),
538 struct pxa27x_keypad_platform_data mainstone_keypad_info = {
539 .matrix_key_rows = 6,
540 .matrix_key_cols = 7,
541 .matrix_key_map = mainstone_matrix_keys,
542 .matrix_key_map_size = ARRAY_SIZE(mainstone_matrix_keys),
544 .enable_rotary0 = 1,
545 .rotary0_up_key = KEY_UP,
546 .rotary0_down_key = KEY_DOWN,
548 .debounce_interval = 30,
551 static void __init mainstone_init_keypad(void)
553 pxa_set_keypad_info(&mainstone_keypad_info);
555 #else
556 static inline void mainstone_init_keypad(void) {}
557 #endif
559 static void __init mainstone_init(void)
561 int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
563 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
565 pxa_set_ffuart_info(NULL);
566 pxa_set_btuart_info(NULL);
567 pxa_set_stuart_info(NULL);
569 mst_flash_data[0].width = (__raw_readl(BOOT_DEF) & 1) ? 2 : 4;
570 mst_flash_data[1].width = 4;
572 /* Compensate for SW7 which swaps the flash banks */
573 mst_flash_data[SW7].name = "processor-flash";
574 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
576 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
577 mst_flash_data[0].name);
579 /* system bus arbiter setting
580 * - Core_Park
581 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
583 ARB_CNTRL = ARB_CORE_PARK | 0x234;
585 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
587 /* reading Mainstone's "Virtual Configuration Register"
588 might be handy to select LCD type here */
589 if (0)
590 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
591 else
592 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
594 set_pxa_fb_info(&mainstone_pxafb_info);
595 mainstone_backlight_register();
597 pxa_set_mci_info(&mainstone_mci_platform_data);
598 pxa_set_ficp_info(&mainstone_ficp_platform_data);
599 pxa_set_ohci_info(&mainstone_ohci_platform_data);
600 pxa_set_i2c_info(NULL);
601 pxa_set_ac97_info(&mst_audio_ops);
603 mainstone_init_keypad();
607 static struct map_desc mainstone_io_desc[] __initdata = {
608 { /* CPLD */
609 .virtual = MST_FPGA_VIRT,
610 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
611 .length = 0x00100000,
612 .type = MT_DEVICE
616 static void __init mainstone_map_io(void)
618 pxa27x_map_io();
619 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
621 /* for use I SRAM as framebuffer. */
622 PSLR |= 0xF04;
623 PCFR = 0x66;
626 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
627 /* Maintainer: MontaVista Software Inc. */
628 .boot_params = 0xa0000100, /* BLOB boot parameter setting */
629 .map_io = mainstone_map_io,
630 .nr_irqs = MAINSTONE_NR_IRQS,
631 .init_irq = mainstone_init_irq,
632 .timer = &pxa_timer,
633 .init_machine = mainstone_init,
634 MACHINE_END