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/pxa-regs.h>
45 #include <mach/pxa2xx-regs.h>
46 #include <mach/mfp-pxa27x.h>
47 #include <mach/mainstone.h>
48 #include <mach/audio.h>
49 #include <mach/pxafb.h>
52 #include <mach/irda.h>
53 #include <mach/ohci.h>
54 #include <mach/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,
136 GPIO1_GPIO | WAKEUP_ON_EDGE_BOTH,
139 static unsigned long mainstone_irq_enabled;
141 static void mainstone_mask_irq(unsigned int irq)
143 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
144 MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
147 static void mainstone_unmask_irq(unsigned int irq)
149 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
150 /* the irq can be acknowledged only if deasserted, so it's done here */
151 MST_INTSETCLR &= ~(1 << mainstone_irq);
152 MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
155 static struct irq_chip mainstone_irq_chip = {
157 .ack = mainstone_mask_irq,
158 .mask = mainstone_mask_irq,
159 .unmask = mainstone_unmask_irq,
162 static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
164 unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
166 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
167 if (likely(pending)) {
168 irq = MAINSTONE_IRQ(0) + __ffs(pending);
169 generic_handle_irq(irq);
171 pending = MST_INTSETCLR & mainstone_irq_enabled;
175 static void __init mainstone_init_irq(void)
181 /* setup extra Mainstone irqs */
182 for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
183 set_irq_chip(irq, &mainstone_irq_chip);
184 set_irq_handler(irq, handle_level_irq);
185 if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
186 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
188 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
190 set_irq_flags(MAINSTONE_IRQ(8), 0);
191 set_irq_flags(MAINSTONE_IRQ(12), 0);
196 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
197 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
202 static int mainstone_irq_resume(struct sys_device *dev)
204 MST_INTMSKENA = mainstone_irq_enabled;
208 static struct sysdev_class mainstone_irq_sysclass = {
210 .resume = mainstone_irq_resume,
213 static struct sys_device mainstone_irq_device = {
214 .cls = &mainstone_irq_sysclass,
217 static int __init mainstone_irq_device_init(void)
221 if (machine_is_mainstone()) {
222 ret = sysdev_class_register(&mainstone_irq_sysclass);
224 ret = sysdev_register(&mainstone_irq_device);
229 device_initcall(mainstone_irq_device_init);
234 static struct resource smc91x_resources[] = {
236 .start = (MST_ETH_PHYS + 0x300),
237 .end = (MST_ETH_PHYS + 0xfffff),
238 .flags = IORESOURCE_MEM,
241 .start = MAINSTONE_IRQ(3),
242 .end = MAINSTONE_IRQ(3),
243 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
247 static struct smc91x_platdata mainstone_smc91x_info = {
248 .flags = SMC91X_USE_8BIT | SMC91X_USE_16BIT | SMC91X_USE_32BIT |
249 SMC91X_NOWAIT | SMC91X_USE_DMA,
252 static struct platform_device smc91x_device = {
255 .num_resources = ARRAY_SIZE(smc91x_resources),
256 .resource = smc91x_resources,
258 .platform_data = &mainstone_smc91x_info,
262 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
264 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
265 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
269 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
271 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
272 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
275 static long mst_audio_suspend_mask;
277 static void mst_audio_suspend(void *priv)
279 mst_audio_suspend_mask = MST_MSCWR2;
280 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
283 static void mst_audio_resume(void *priv)
285 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
288 static pxa2xx_audio_ops_t mst_audio_ops = {
289 .startup = mst_audio_startup,
290 .shutdown = mst_audio_shutdown,
291 .suspend = mst_audio_suspend,
292 .resume = mst_audio_resume,
295 static struct resource flash_resources[] = {
297 .start = PXA_CS0_PHYS,
298 .end = PXA_CS0_PHYS + SZ_64M - 1,
299 .flags = IORESOURCE_MEM,
302 .start = PXA_CS1_PHYS,
303 .end = PXA_CS1_PHYS + SZ_64M - 1,
304 .flags = IORESOURCE_MEM,
308 static struct mtd_partition mainstoneflash0_partitions[] = {
310 .name = "Bootloader",
313 .mask_flags = MTD_WRITEABLE /* force read-only */
317 .offset = 0x00040000,
319 .name = "Filesystem",
320 .size = MTDPART_SIZ_FULL,
325 static struct flash_platform_data mst_flash_data[2] = {
327 .map_name = "cfi_probe",
328 .parts = mainstoneflash0_partitions,
329 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
331 .map_name = "cfi_probe",
337 static struct platform_device mst_flash_device[2] = {
339 .name = "pxa2xx-flash",
342 .platform_data = &mst_flash_data[0],
344 .resource = &flash_resources[0],
348 .name = "pxa2xx-flash",
351 .platform_data = &mst_flash_data[1],
353 .resource = &flash_resources[1],
358 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
359 static struct platform_pwm_backlight_data mainstone_backlight_data = {
361 .max_brightness = 1023,
362 .dft_brightness = 1023,
363 .pwm_period_ns = 78770,
366 static struct platform_device mainstone_backlight_device = {
367 .name = "pwm-backlight",
369 .parent = &pxa27x_device_pwm0.dev,
370 .platform_data = &mainstone_backlight_data,
374 static void __init mainstone_backlight_register(void)
376 int ret = platform_device_register(&mainstone_backlight_device);
378 printk(KERN_ERR "mainstone: failed to register backlight device: %d\n", ret);
381 #define mainstone_backlight_register() do { } while (0)
384 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
395 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
398 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
409 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
412 static struct pxafb_mach_info mainstone_pxafb_info = {
414 .lcd_conn = LCD_COLOR_TFT_16BPP | LCD_PCLK_EDGE_FALL,
417 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
421 /* make sure SD/Memory Stick multiplexer's signals
422 * are routed to MMC controller
424 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
426 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
427 "MMC card detect", data);
429 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
434 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
436 struct pxamci_platform_data* p_d = dev->platform_data;
438 if (( 1 << vdd) & p_d->ocr_mask) {
439 printk(KERN_DEBUG "%s: on\n", __func__);
440 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
441 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
443 printk(KERN_DEBUG "%s: off\n", __func__);
444 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
448 static void mainstone_mci_exit(struct device *dev, void *data)
450 free_irq(MAINSTONE_MMC_IRQ, data);
453 static struct pxamci_platform_data mainstone_mci_platform_data = {
454 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
455 .init = mainstone_mci_init,
456 .setpower = mainstone_mci_setpower,
457 .exit = mainstone_mci_exit,
460 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
464 local_irq_save(flags);
465 if (mode & IR_SIRMODE) {
466 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
467 } else if (mode & IR_FIRMODE) {
468 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
470 pxa2xx_transceiver_mode(dev, mode);
472 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
474 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
476 local_irq_restore(flags);
479 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
480 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
481 .transceiver_mode = mainstone_irda_transceiver_mode,
484 static struct gpio_keys_button gpio_keys_button[] = {
494 static struct gpio_keys_platform_data mainstone_gpio_keys = {
495 .buttons = gpio_keys_button,
499 static struct platform_device mst_gpio_keys_device = {
503 .platform_data = &mainstone_gpio_keys,
507 static struct platform_device *platform_devices[] __initdata = {
509 &mst_flash_device[0],
510 &mst_flash_device[1],
511 &mst_gpio_keys_device,
514 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
515 .port_mode = PMM_PERPORT_MODE,
516 .flags = ENABLE_PORT_ALL | POWER_CONTROL_LOW | POWER_SENSE_LOW,
519 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
520 static unsigned int mainstone_matrix_keys[] = {
521 KEY(0, 0, KEY_A), KEY(1, 0, KEY_B), KEY(2, 0, KEY_C),
522 KEY(3, 0, KEY_D), KEY(4, 0, KEY_E), KEY(5, 0, KEY_F),
523 KEY(0, 1, KEY_G), KEY(1, 1, KEY_H), KEY(2, 1, KEY_I),
524 KEY(3, 1, KEY_J), KEY(4, 1, KEY_K), KEY(5, 1, KEY_L),
525 KEY(0, 2, KEY_M), KEY(1, 2, KEY_N), KEY(2, 2, KEY_O),
526 KEY(3, 2, KEY_P), KEY(4, 2, KEY_Q), KEY(5, 2, KEY_R),
527 KEY(0, 3, KEY_S), KEY(1, 3, KEY_T), KEY(2, 3, KEY_U),
528 KEY(3, 3, KEY_V), KEY(4, 3, KEY_W), KEY(5, 3, KEY_X),
529 KEY(2, 4, KEY_Y), KEY(3, 4, KEY_Z),
531 KEY(0, 4, KEY_DOT), /* . */
532 KEY(1, 4, KEY_CLOSE), /* @ */
533 KEY(4, 4, KEY_SLASH),
534 KEY(5, 4, KEY_BACKSLASH),
536 KEY(1, 5, KEY_LEFTSHIFT),
537 KEY(2, 5, KEY_SPACE),
538 KEY(3, 5, KEY_SPACE),
539 KEY(4, 5, KEY_ENTER),
540 KEY(5, 5, KEY_BACKSPACE),
545 KEY(3, 6, KEY_RIGHT),
546 KEY(4, 6, KEY_SELECT),
549 struct pxa27x_keypad_platform_data mainstone_keypad_info = {
550 .matrix_key_rows = 6,
551 .matrix_key_cols = 7,
552 .matrix_key_map = mainstone_matrix_keys,
553 .matrix_key_map_size = ARRAY_SIZE(mainstone_matrix_keys),
556 .rotary0_up_key = KEY_UP,
557 .rotary0_down_key = KEY_DOWN,
559 .debounce_interval = 30,
562 static void __init mainstone_init_keypad(void)
564 pxa_set_keypad_info(&mainstone_keypad_info);
567 static inline void mainstone_init_keypad(void) {}
570 static void __init mainstone_init(void)
572 int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
574 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config));
576 mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
577 mst_flash_data[1].width = 4;
579 /* Compensate for SW7 which swaps the flash banks */
580 mst_flash_data[SW7].name = "processor-flash";
581 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
583 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
584 mst_flash_data[0].name);
586 /* system bus arbiter setting
588 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
590 ARB_CNTRL = ARB_CORE_PARK | 0x234;
592 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
594 /* reading Mainstone's "Virtual Configuration Register"
595 might be handy to select LCD type here */
597 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
599 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
601 set_pxa_fb_info(&mainstone_pxafb_info);
602 mainstone_backlight_register();
604 pxa_set_mci_info(&mainstone_mci_platform_data);
605 pxa_set_ficp_info(&mainstone_ficp_platform_data);
606 pxa_set_ohci_info(&mainstone_ohci_platform_data);
607 pxa_set_i2c_info(NULL);
608 pxa_set_ac97_info(&mst_audio_ops);
610 mainstone_init_keypad();
614 static struct map_desc mainstone_io_desc[] __initdata = {
616 .virtual = MST_FPGA_VIRT,
617 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
618 .length = 0x00100000,
623 static void __init mainstone_map_io(void)
626 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
628 /* for use I SRAM as framebuffer. */
633 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
634 /* Maintainer: MontaVista Software Inc. */
635 .phys_io = 0x40000000,
636 .boot_params = 0xa0000100, /* BLOB boot parameter setting */
637 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
638 .map_io = mainstone_map_io,
639 .init_irq = mainstone_init_irq,
641 .init_machine = mainstone_init,