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 <asm/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 <asm/arch/pxa-regs.h>
45 #include <asm/arch/pxa2xx-regs.h>
46 #include <asm/arch/mfp-pxa27x.h>
47 #include <asm/arch/mainstone.h>
48 #include <asm/arch/audio.h>
49 #include <asm/arch/pxafb.h>
50 #include <asm/arch/i2c.h>
51 #include <asm/arch/mmc.h>
52 #include <asm/arch/irda.h>
53 #include <asm/arch/ohci.h>
54 #include <asm/arch/pxa27x_keypad.h>
59 static unsigned long mainstone_pin_config[] = {
63 /* LCD - 16bpp Active TFT */
84 GPIO16_PWM0_OUT, /* Backlight */
117 GPIO100_KP_MKIN_0 | WAKEUP_ON_LEVEL_HIGH,
118 GPIO101_KP_MKIN_1 | WAKEUP_ON_LEVEL_HIGH,
119 GPIO102_KP_MKIN_2 | WAKEUP_ON_LEVEL_HIGH,
120 GPIO97_KP_MKIN_3 | WAKEUP_ON_LEVEL_HIGH,
121 GPIO98_KP_MKIN_4 | WAKEUP_ON_LEVEL_HIGH,
122 GPIO99_KP_MKIN_5 | WAKEUP_ON_LEVEL_HIGH,
132 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
135 static unsigned long mainstone_irq_enabled;
137 static void mainstone_mask_irq(unsigned int irq)
139 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
140 MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
143 static void mainstone_unmask_irq(unsigned int irq)
145 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
146 /* the irq can be acknowledged only if deasserted, so it's done here */
147 MST_INTSETCLR &= ~(1 << mainstone_irq);
148 MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
151 static struct irq_chip mainstone_irq_chip = {
153 .ack = mainstone_mask_irq,
154 .mask = mainstone_mask_irq,
155 .unmask = mainstone_unmask_irq,
158 static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
160 unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
162 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
163 if (likely(pending)) {
164 irq = MAINSTONE_IRQ(0) + __ffs(pending);
165 desc = irq_desc + irq;
166 desc_handle_irq(irq, desc);
168 pending = MST_INTSETCLR & mainstone_irq_enabled;
172 static void __init mainstone_init_irq(void)
178 /* setup extra Mainstone irqs */
179 for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
180 set_irq_chip(irq, &mainstone_irq_chip);
181 set_irq_handler(irq, handle_level_irq);
182 if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
183 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
185 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
187 set_irq_flags(MAINSTONE_IRQ(8), 0);
188 set_irq_flags(MAINSTONE_IRQ(12), 0);
193 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
194 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
199 static int mainstone_irq_resume(struct sys_device *dev)
201 MST_INTMSKENA = mainstone_irq_enabled;
205 static struct sysdev_class mainstone_irq_sysclass = {
207 .resume = mainstone_irq_resume,
210 static struct sys_device mainstone_irq_device = {
211 .cls = &mainstone_irq_sysclass,
214 static int __init mainstone_irq_device_init(void)
218 if (machine_is_mainstone()) {
219 ret = sysdev_class_register(&mainstone_irq_sysclass);
221 ret = sysdev_register(&mainstone_irq_device);
226 device_initcall(mainstone_irq_device_init);
231 static struct resource smc91x_resources[] = {
233 .start = (MST_ETH_PHYS + 0x300),
234 .end = (MST_ETH_PHYS + 0xfffff),
235 .flags = IORESOURCE_MEM,
238 .start = MAINSTONE_IRQ(3),
239 .end = MAINSTONE_IRQ(3),
240 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
244 static struct smc91x_platdata mainstone_smc91x_info = {
245 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
246 SMC91X_NOWAIT | SMC91X_USE_DMA,
249 static struct platform_device smc91x_device = {
252 .num_resources = ARRAY_SIZE(smc91x_resources),
253 .resource = smc91x_resources,
255 .platform_data = &mainstone_smc91x_info,
259 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
261 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
262 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
266 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
268 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
269 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
272 static long mst_audio_suspend_mask;
274 static void mst_audio_suspend(void *priv)
276 mst_audio_suspend_mask = MST_MSCWR2;
277 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
280 static void mst_audio_resume(void *priv)
282 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
285 static pxa2xx_audio_ops_t mst_audio_ops = {
286 .startup = mst_audio_startup,
287 .shutdown = mst_audio_shutdown,
288 .suspend = mst_audio_suspend,
289 .resume = mst_audio_resume,
292 static struct resource flash_resources[] = {
294 .start = PXA_CS0_PHYS,
295 .end = PXA_CS0_PHYS + SZ_64M - 1,
296 .flags = IORESOURCE_MEM,
299 .start = PXA_CS1_PHYS,
300 .end = PXA_CS1_PHYS + SZ_64M - 1,
301 .flags = IORESOURCE_MEM,
305 static struct mtd_partition mainstoneflash0_partitions[] = {
307 .name = "Bootloader",
310 .mask_flags = MTD_WRITEABLE /* force read-only */
314 .offset = 0x00040000,
316 .name = "Filesystem",
317 .size = MTDPART_SIZ_FULL,
322 static struct flash_platform_data mst_flash_data[2] = {
324 .map_name = "cfi_probe",
325 .parts = mainstoneflash0_partitions,
326 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
328 .map_name = "cfi_probe",
334 static struct platform_device mst_flash_device[2] = {
336 .name = "pxa2xx-flash",
339 .platform_data = &mst_flash_data[0],
341 .resource = &flash_resources[0],
345 .name = "pxa2xx-flash",
348 .platform_data = &mst_flash_data[1],
350 .resource = &flash_resources[1],
355 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
356 static struct platform_pwm_backlight_data mainstone_backlight_data = {
358 .max_brightness = 1023,
359 .dft_brightness = 1023,
360 .pwm_period_ns = 78770,
363 static struct platform_device mainstone_backlight_device = {
364 .name = "pwm-backlight",
366 .parent = &pxa27x_device_pwm0.dev,
367 .platform_data = &mainstone_backlight_data,
371 static void __init mainstone_backlight_register(void)
373 int ret = platform_device_register(&mainstone_backlight_device);
375 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
378 #define mainstone_backlight_register() do { } while (0)
381 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
392 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
395 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
406 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
409 static struct pxafb_mach_info mainstone_pxafb_info = {
411 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
414 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
418 /* make sure SD/Memory Stick multiplexer's signals
419 * are routed to MMC controller
421 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
423 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
424 "MMC card detect", data);
426 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
431 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
433 struct pxamci_platform_data* p_d = dev->platform_data;
435 if (( 1 << vdd) & p_d->ocr_mask) {
436 printk(KERN_DEBUG "%s: on\n", __func__);
437 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
438 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
440 printk(KERN_DEBUG "%s: off\n", __func__);
441 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
445 static void mainstone_mci_exit(struct device *dev, void *data)
447 free_irq(MAINSTONE_MMC_IRQ, data);
450 static struct pxamci_platform_data mainstone_mci_platform_data = {
451 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
452 .init = mainstone_mci_init,
453 .setpower = mainstone_mci_setpower,
454 .exit = mainstone_mci_exit,
457 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
461 local_irq_save(flags);
462 if (mode & IR_SIRMODE) {
463 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
464 } else if (mode & IR_FIRMODE) {
465 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
467 pxa2xx_transceiver_mode(dev, mode);
469 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
471 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
473 local_irq_restore(flags);
476 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
477 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
478 .transceiver_mode = mainstone_irda_transceiver_mode,
481 static struct gpio_keys_button gpio_keys_button[] = {
491 static struct gpio_keys_platform_data mainstone_gpio_keys = {
492 .buttons = gpio_keys_button,
496 static struct platform_device mst_gpio_keys_device = {
500 .platform_data = &mainstone_gpio_keys,
504 static struct platform_device *platform_devices[] __initdata = {
506 &mst_flash_device[0],
507 &mst_flash_device[1],
508 &mst_gpio_keys_device,
511 static int mainstone_ohci_init(struct device *dev)
513 /* Set the Power Control Polarity Low and Power Sense
514 Polarity Low to active low. */
515 UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
516 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
521 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
522 .port_mode = PMM_PERPORT_MODE,
523 .init = mainstone_ohci_init,
526 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
527 static unsigned int mainstone_matrix_keys[] = {
528 KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
529 KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
530 KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
531 KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
532 KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
533 KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
534 KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
535 KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
536 KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
538 KEY(0, 4, KEY_DOT), /* . */
539 KEY(1, 4, KEY_CLOSE), /* @ */
540 KEY(4, 4, KEY_SLASH),
541 KEY(5, 4, KEY_BACKSLASH),
543 KEY(1, 5, KEY_LEFTSHIFT),
544 KEY(2, 5, KEY_SPACE),
545 KEY(3, 5, KEY_SPACE),
546 KEY(4, 5, KEY_ENTER),
547 KEY(5, 5, KEY_BACKSPACE),
552 KEY(3, 6, KEY_RIGHT),
553 KEY(4, 6, KEY_SELECT),
556 struct pxa27x_keypad_platform_data mainstone_keypad_info = {
557 .matrix_key_rows = 6,
558 .matrix_key_cols = 7,
559 .matrix_key_map = mainstone_matrix_keys,
560 .matrix_key_map_size = ARRAY_SIZE(mainstone_matrix_keys),
563 .rotary0_up_key = KEY_UP,
564 .rotary0_down_key = KEY_DOWN,
566 .debounce_interval = 30,
569 static void __init mainstone_init_keypad(void)
571 pxa_set_keypad_info(&mainstone_keypad_info);
574 static inline void mainstone_init_keypad(void) {}
577 static void __init mainstone_init(void)
579 int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
581 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
583 mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
584 mst_flash_data[1].width = 4;
586 /* Compensate for SW7 which swaps the flash banks */
587 mst_flash_data[SW7].name = "processor-flash";
588 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
590 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
591 mst_flash_data[0].name);
593 /* system bus arbiter setting
595 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
597 ARB_CNTRL = ARB_CORE_PARK | 0x234;
599 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
601 /* reading Mainstone's "Virtual Configuration Register"
602 might be handy to select LCD type here */
604 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
606 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
608 set_pxa_fb_info(&mainstone_pxafb_info);
609 mainstone_backlight_register();
611 pxa_set_mci_info(&mainstone_mci_platform_data);
612 pxa_set_ficp_info(&mainstone_ficp_platform_data);
613 pxa_set_ohci_info(&mainstone_ohci_platform_data);
614 pxa_set_i2c_info(NULL);
615 pxa_set_ac97_info(&mst_audio_ops);
617 mainstone_init_keypad();
621 static struct map_desc mainstone_io_desc[] __initdata = {
623 .virtual = MST_FPGA_VIRT,
624 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
625 .length = 0x00100000,
630 static void __init mainstone_map_io(void)
633 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
635 /* for use I SRAM as framebuffer. */
640 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
641 /* Maintainer: MontaVista Software Inc. */
642 .phys_io = 0x40000000,
643 .boot_params = 0xa0000100, /* BLOB boot parameter setting */
644 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
645 .map_io = mainstone_map_io,
646 .init_irq = mainstone_init_irq,
648 .init_machine = mainstone_init,