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>
27 #include <asm/types.h>
28 #include <asm/setup.h>
29 #include <asm/memory.h>
30 #include <asm/mach-types.h>
31 #include <asm/hardware.h>
33 #include <asm/sizes.h>
35 #include <asm/mach/arch.h>
36 #include <asm/mach/map.h>
37 #include <asm/mach/irq.h>
38 #include <asm/mach/flash.h>
40 #include <asm/arch/pxa-regs.h>
41 #include <asm/arch/mainstone.h>
42 #include <asm/arch/audio.h>
43 #include <asm/arch/pxafb.h>
44 #include <asm/arch/mmc.h>
45 #include <asm/arch/irda.h>
46 #include <asm/arch/ohci.h>
52 static unsigned long mainstone_irq_enabled;
54 static void mainstone_mask_irq(unsigned int irq)
56 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
57 MST_INTMSKENA = (mainstone_irq_enabled &= ~(1 << mainstone_irq));
60 static void mainstone_unmask_irq(unsigned int irq)
62 int mainstone_irq = (irq - MAINSTONE_IRQ(0));
63 /* the irq can be acknowledged only if deasserted, so it's done here */
64 MST_INTSETCLR &= ~(1 << mainstone_irq);
65 MST_INTMSKENA = (mainstone_irq_enabled |= (1 << mainstone_irq));
68 static struct irq_chip mainstone_irq_chip = {
70 .ack = mainstone_mask_irq,
71 .mask = mainstone_mask_irq,
72 .unmask = mainstone_unmask_irq,
75 static void mainstone_irq_handler(unsigned int irq, struct irq_desc *desc)
77 unsigned long pending = MST_INTSETCLR & mainstone_irq_enabled;
79 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
80 if (likely(pending)) {
81 irq = MAINSTONE_IRQ(0) + __ffs(pending);
82 desc = irq_desc + irq;
83 desc_handle_irq(irq, desc);
85 pending = MST_INTSETCLR & mainstone_irq_enabled;
89 static void __init mainstone_init_irq(void)
95 /* setup extra Mainstone irqs */
96 for(irq = MAINSTONE_IRQ(0); irq <= MAINSTONE_IRQ(15); irq++) {
97 set_irq_chip(irq, &mainstone_irq_chip);
98 set_irq_handler(irq, handle_level_irq);
99 if (irq == MAINSTONE_IRQ(10) || irq == MAINSTONE_IRQ(14))
100 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE | IRQF_NOAUTOEN);
102 set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
104 set_irq_flags(MAINSTONE_IRQ(8), 0);
105 set_irq_flags(MAINSTONE_IRQ(12), 0);
110 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
111 set_irq_type(IRQ_GPIO(0), IRQT_FALLING);
116 static int mainstone_irq_resume(struct sys_device *dev)
118 MST_INTMSKENA = mainstone_irq_enabled;
122 static struct sysdev_class mainstone_irq_sysclass = {
123 set_kset_name("cpld_irq"),
124 .resume = mainstone_irq_resume,
127 static struct sys_device mainstone_irq_device = {
128 .cls = &mainstone_irq_sysclass,
131 static int __init mainstone_irq_device_init(void)
133 int ret = sysdev_class_register(&mainstone_irq_sysclass);
135 ret = sysdev_register(&mainstone_irq_device);
139 device_initcall(mainstone_irq_device_init);
144 static struct resource smc91x_resources[] = {
146 .start = (MST_ETH_PHYS + 0x300),
147 .end = (MST_ETH_PHYS + 0xfffff),
148 .flags = IORESOURCE_MEM,
151 .start = MAINSTONE_IRQ(3),
152 .end = MAINSTONE_IRQ(3),
153 .flags = IORESOURCE_IRQ,
157 static struct platform_device smc91x_device = {
160 .num_resources = ARRAY_SIZE(smc91x_resources),
161 .resource = smc91x_resources,
164 static int mst_audio_startup(struct snd_pcm_substream *substream, void *priv)
166 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
167 MST_MSCWR2 &= ~MST_MSCWR2_AC97_SPKROFF;
171 static void mst_audio_shutdown(struct snd_pcm_substream *substream, void *priv)
173 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
174 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
177 static long mst_audio_suspend_mask;
179 static void mst_audio_suspend(void *priv)
181 mst_audio_suspend_mask = MST_MSCWR2;
182 MST_MSCWR2 |= MST_MSCWR2_AC97_SPKROFF;
185 static void mst_audio_resume(void *priv)
187 MST_MSCWR2 &= mst_audio_suspend_mask | ~MST_MSCWR2_AC97_SPKROFF;
190 static pxa2xx_audio_ops_t mst_audio_ops = {
191 .startup = mst_audio_startup,
192 .shutdown = mst_audio_shutdown,
193 .suspend = mst_audio_suspend,
194 .resume = mst_audio_resume,
197 static struct platform_device mst_audio_device = {
198 .name = "pxa2xx-ac97",
200 .dev = { .platform_data = &mst_audio_ops },
203 static struct resource flash_resources[] = {
205 .start = PXA_CS0_PHYS,
206 .end = PXA_CS0_PHYS + SZ_64M - 1,
207 .flags = IORESOURCE_MEM,
210 .start = PXA_CS1_PHYS,
211 .end = PXA_CS1_PHYS + SZ_64M - 1,
212 .flags = IORESOURCE_MEM,
216 static struct mtd_partition mainstoneflash0_partitions[] = {
218 .name = "Bootloader",
221 .mask_flags = MTD_WRITEABLE /* force read-only */
225 .offset = 0x00040000,
227 .name = "Filesystem",
228 .size = MTDPART_SIZ_FULL,
233 static struct flash_platform_data mst_flash_data[2] = {
235 .map_name = "cfi_probe",
236 .parts = mainstoneflash0_partitions,
237 .nr_parts = ARRAY_SIZE(mainstoneflash0_partitions),
239 .map_name = "cfi_probe",
245 static struct platform_device mst_flash_device[2] = {
247 .name = "pxa2xx-flash",
250 .platform_data = &mst_flash_data[0],
252 .resource = &flash_resources[0],
256 .name = "pxa2xx-flash",
259 .platform_data = &mst_flash_data[1],
261 .resource = &flash_resources[1],
266 static void mainstone_backlight_power(int on)
269 pxa_gpio_mode(GPIO16_PWM0_MD);
270 pxa_set_cken(CKEN_PWM0, 1);
278 pxa_set_cken(CKEN_PWM0, 0);
282 static struct pxafb_mode_info toshiba_ltm04c380k_mode = {
293 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
296 static struct pxafb_mode_info toshiba_ltm035a776c_mode = {
307 .sync = FB_SYNC_HOR_HIGH_ACT|FB_SYNC_VERT_HIGH_ACT,
310 static struct pxafb_mach_info mainstone_pxafb_info = {
314 .pxafb_backlight_power = mainstone_backlight_power,
317 static int mainstone_mci_init(struct device *dev, irq_handler_t mstone_detect_int, void *data)
322 * setup GPIO for PXA27x MMC controller
324 pxa_gpio_mode(GPIO32_MMCCLK_MD);
325 pxa_gpio_mode(GPIO112_MMCCMD_MD);
326 pxa_gpio_mode(GPIO92_MMCDAT0_MD);
327 pxa_gpio_mode(GPIO109_MMCDAT1_MD);
328 pxa_gpio_mode(GPIO110_MMCDAT2_MD);
329 pxa_gpio_mode(GPIO111_MMCDAT3_MD);
331 /* make sure SD/Memory Stick multiplexer's signals
332 * are routed to MMC controller
334 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
336 err = request_irq(MAINSTONE_MMC_IRQ, mstone_detect_int, IRQF_DISABLED,
337 "MMC card detect", data);
339 printk(KERN_ERR "mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
346 static void mainstone_mci_setpower(struct device *dev, unsigned int vdd)
348 struct pxamci_platform_data* p_d = dev->platform_data;
350 if (( 1 << vdd) & p_d->ocr_mask) {
351 printk(KERN_DEBUG "%s: on\n", __FUNCTION__);
352 MST_MSCWR1 |= MST_MSCWR1_MMC_ON;
353 MST_MSCWR1 &= ~MST_MSCWR1_MS_SEL;
355 printk(KERN_DEBUG "%s: off\n", __FUNCTION__);
356 MST_MSCWR1 &= ~MST_MSCWR1_MMC_ON;
360 static void mainstone_mci_exit(struct device *dev, void *data)
362 free_irq(MAINSTONE_MMC_IRQ, data);
365 static struct pxamci_platform_data mainstone_mci_platform_data = {
366 .ocr_mask = MMC_VDD_32_33|MMC_VDD_33_34,
367 .init = mainstone_mci_init,
368 .setpower = mainstone_mci_setpower,
369 .exit = mainstone_mci_exit,
372 static void mainstone_irda_transceiver_mode(struct device *dev, int mode)
376 local_irq_save(flags);
377 if (mode & IR_SIRMODE) {
378 MST_MSCWR1 &= ~MST_MSCWR1_IRDA_FIR;
379 } else if (mode & IR_FIRMODE) {
380 MST_MSCWR1 |= MST_MSCWR1_IRDA_FIR;
383 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_OFF;
385 MST_MSCWR1 = (MST_MSCWR1 & ~MST_MSCWR1_IRDA_MASK) | MST_MSCWR1_IRDA_FULL;
387 local_irq_restore(flags);
390 static struct pxaficp_platform_data mainstone_ficp_platform_data = {
391 .transceiver_cap = IR_SIRMODE | IR_FIRMODE | IR_OFF,
392 .transceiver_mode = mainstone_irda_transceiver_mode,
395 static struct platform_device *platform_devices[] __initdata = {
398 &mst_flash_device[0],
399 &mst_flash_device[1],
402 static int mainstone_ohci_init(struct device *dev)
404 /* setup Port1 GPIO pin. */
405 pxa_gpio_mode( 88 | GPIO_ALT_FN_1_IN); /* USBHPWR1 */
406 pxa_gpio_mode( 89 | GPIO_ALT_FN_2_OUT); /* USBHPEN1 */
408 /* Set the Power Control Polarity Low and Power Sense
409 Polarity Low to active low. */
410 UHCHR = (UHCHR | UHCHR_PCPL | UHCHR_PSPL) &
411 ~(UHCHR_SSEP1 | UHCHR_SSEP2 | UHCHR_SSEP3 | UHCHR_SSE);
416 static struct pxaohci_platform_data mainstone_ohci_platform_data = {
417 .port_mode = PMM_PERPORT_MODE,
418 .init = mainstone_ohci_init,
421 static void __init mainstone_init(void)
423 int SW7 = 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
425 mst_flash_data[0].width = (BOOT_DEF & 1) ? 2 : 4;
426 mst_flash_data[1].width = 4;
428 /* Compensate for SW7 which swaps the flash banks */
429 mst_flash_data[SW7].name = "processor-flash";
430 mst_flash_data[SW7 ^ 1].name = "mainboard-flash";
432 printk(KERN_NOTICE "Mainstone configured to boot from %s\n",
433 mst_flash_data[0].name);
435 /* system bus arbiter setting
437 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
439 ARB_CNTRL = ARB_CORE_PARK | 0x234;
442 * On Mainstone, we route AC97_SYSCLK via GPIO45 to
443 * the audio daughter card
445 pxa_gpio_mode(GPIO45_SYSCLK_AC97_MD);
448 GPIO_bit(GPIO48_nPOE) |
449 GPIO_bit(GPIO49_nPWE) |
450 GPIO_bit(GPIO50_nPIOR) |
451 GPIO_bit(GPIO51_nPIOW) |
452 GPIO_bit(GPIO85_nPCE_1) |
453 GPIO_bit(GPIO54_nPCE_2);
455 pxa_gpio_mode(GPIO48_nPOE_MD);
456 pxa_gpio_mode(GPIO49_nPWE_MD);
457 pxa_gpio_mode(GPIO50_nPIOR_MD);
458 pxa_gpio_mode(GPIO51_nPIOW_MD);
459 pxa_gpio_mode(GPIO85_nPCE_1_MD);
460 pxa_gpio_mode(GPIO54_nPCE_2_MD);
461 pxa_gpio_mode(GPIO79_pSKTSEL_MD);
462 pxa_gpio_mode(GPIO55_nPREG_MD);
463 pxa_gpio_mode(GPIO56_nPWAIT_MD);
464 pxa_gpio_mode(GPIO57_nIOIS16_MD);
466 platform_add_devices(platform_devices, ARRAY_SIZE(platform_devices));
468 /* reading Mainstone's "Virtual Configuration Register"
469 might be handy to select LCD type here */
471 mainstone_pxafb_info.modes = &toshiba_ltm04c380k_mode;
473 mainstone_pxafb_info.modes = &toshiba_ltm035a776c_mode;
475 set_pxa_fb_info(&mainstone_pxafb_info);
477 pxa_set_mci_info(&mainstone_mci_platform_data);
478 pxa_set_ficp_info(&mainstone_ficp_platform_data);
479 pxa_set_ohci_info(&mainstone_ohci_platform_data);
483 static struct map_desc mainstone_io_desc[] __initdata = {
485 .virtual = MST_FPGA_VIRT,
486 .pfn = __phys_to_pfn(MST_FPGA_PHYS),
487 .length = 0x00100000,
492 static void __init mainstone_map_io(void)
495 iotable_init(mainstone_io_desc, ARRAY_SIZE(mainstone_io_desc));
497 /* initialize sleep mode regs (wake-up sources, etc) */
505 /* for use I SRAM as framebuffer. */
508 /* For Keypad wakeup. */
512 /* Need read PKWR back after set it. */
516 MACHINE_START(MAINSTONE, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
517 /* Maintainer: MontaVista Software Inc. */
518 .phys_io = 0x40000000,
519 .boot_params = 0xa0000100, /* BLOB boot parameter setting */
520 .io_pg_offst = (io_p2v(0x40000000) >> 18) & 0xfffc,
521 .map_io = mainstone_map_io,
522 .init_irq = mainstone_init_irq,
524 .init_machine = mainstone_init,