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>
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>
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>
51 #include <mach/irda.h>
52 #include <mach/ohci.h>
53 #include <plat/pxa27x_keypad.h>
54 #include <mach/smemc.h>
59 static unsigned long mainstone_pin_config[] = {
63 /* LCD - 16bpp Active TFT */
65 GPIO16_PWM0_OUT, /* Backlight */
93 GPIO29_AC97_SDATA_IN_0,
94 GPIO30_AC97_SDATA_OUT,
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,
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 = {
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;
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;
160 static void __init mainstone_init_irq(void)
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);
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);
181 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
182 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
187 static int mainstone_irq_resume(struct sys_device *dev)
189 MST_INTMSKENA = mainstone_irq_enabled;
193 static struct sysdev_class mainstone_irq_sysclass = {
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)
206 if (machine_is_mainstone()) {
207 ret = sysdev_class_register(&mainstone_irq_sysclass);
209 ret = sysdev_register(&mainstone_irq_device);
214 device_initcall(mainstone_irq_device_init);
219 static struct resource smc91x_resources[] = {
221 .start = (MST_ETH_PHYS + 0x300),
222 .end = (MST_ETH_PHYS + 0xfffff),
223 .flags = IORESOURCE_MEM,
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 = {
240 .num_resources = ARRAY_SIZE(smc91x_resources),
241 .resource = smc91x_resources,
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;
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[] = {
282 .start = PXA_CS0_PHYS,
283 .end = PXA_CS0_PHYS + SZ_64M - 1,
284 .flags = IORESOURCE_MEM,
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",
298 .mask_flags = MTD_WRITEABLE /* force read-only */
302 .offset = 0x00040000,
304 .name = "Filesystem",
305 .size = MTDPART_SIZ_FULL,
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),
316 .map_name = "cfi_probe",
322 static struct platform_device mst_flash_device[2] = {
324 .name = "pxa2xx-flash",
327 .platform_data = &mst_flash_data[0],
329 .resource = &flash_resources[0],
333 .name = "pxa2xx-flash",
336 .platform_data = &mst_flash_data[1],
338 .resource = &flash_resources[1],
343 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
344 static struct platform_pwm_backlight_data mainstone_backlight_data = {
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",
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);
363 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
366 #define mainstone_backlight_register() do { } while (0)
369 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
380 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
383 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
394 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
397 static struct pxafb_mach_info mainstone_pxafb_info = {
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)
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);
414 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
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;
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,
448 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
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);
460 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
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 = {
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[] = {
483 static struct gpio_keys_platform_data mainstone_gpio_keys = {
484 .buttons = gpio_keys_button,
488 static struct platform_device mst_gpio_keys_device = {
492 .platform_data = &mainstone_gpio_keys,
496 static struct platform_device *platform_devices[] __initdata = {
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),
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),
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),
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);
556 static inline void mainstone_init_keypad(void) {}
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
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 */
590 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
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 = {
609 .virtual = MST_FPGA_VIRT,
610 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
611 .length = 0x00100000,
616 static void __init mainstone_map_io(void)
619 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
621 /* for use I SRAM as framebuffer. */
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,
633 .init_machine = mainstone_init,