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/backlight.h>
27 #include <linux/input.h>
28 #include <linux/gpio_keys.h>
30 #include <asm/types.h>
31 #include <asm/setup.h>
32 #include <asm/memory.h>
33 #include <asm/mach-types.h>
34 #include <asm/hardware.h>
36 #include <asm/sizes.h>
38 #include <asm/mach/arch.h>
39 #include <asm/mach/map.h>
40 #include <asm/mach/irq.h>
41 #include <asm/mach/flash.h>
43 #include <asm/arch/pxa-regs.h>
44 #include <asm/arch/pxa2xx-regs.h>
45 #include <asm/arch/mfp-pxa27x.h>
46 #include <asm/arch/mainstone.h>
47 #include <asm/arch/audio.h>
48 #include <asm/arch/pxafb.h>
49 #include <asm/arch/mmc.h>
50 #include <asm/arch/irda.h>
51 #include <asm/arch/ohci.h>
56 static unsigned long mainstone_pin_config
[] = {
60 /* LCD - 16bpp Active TFT */
81 GPIO16_PWM0_OUT
, /* Backlight */
111 GPIO93_KP_DKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
112 GPIO94_KP_DKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
113 GPIO95_KP_DKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
114 GPIO100_KP_MKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
115 GPIO101_KP_MKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
116 GPIO102_KP_MKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
117 GPIO97_KP_MKIN_3
| WAKEUP_ON_LEVEL_HIGH
,
118 GPIO98_KP_MKIN_4
| WAKEUP_ON_LEVEL_HIGH
,
119 GPIO99_KP_MKIN_5
| WAKEUP_ON_LEVEL_HIGH
,
129 GPIO1_GPIO
| WAKEUP_ON_EDGE_BOTH
,
132 static unsigned long mainstone_irq_enabled
;
134 static void mainstone_mask_irq(unsigned int irq
)
136 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
137 MST_INTMSKENA
= (mainstone_irq_enabled
&= ~(1 << mainstone_irq
));
140 static void mainstone_unmask_irq(unsigned int irq
)
142 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
143 /* the irq can be acknowledged only if deasserted, so it's done here */
144 MST_INTSETCLR
&= ~(1 << mainstone_irq
);
145 MST_INTMSKENA
= (mainstone_irq_enabled
|= (1 << mainstone_irq
));
148 static struct irq_chip mainstone_irq_chip
= {
150 .ack
= mainstone_mask_irq
,
151 .mask
= mainstone_mask_irq
,
152 .unmask
= mainstone_unmask_irq
,
155 static void mainstone_irq_handler(unsigned int irq
, struct irq_desc
*desc
)
157 unsigned long pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
159 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
160 if (likely(pending
)) {
161 irq
= MAINSTONE_IRQ(0) + __ffs(pending
);
162 desc
= irq_desc
+ irq
;
163 desc_handle_irq(irq
, desc
);
165 pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
169 static void __init
mainstone_init_irq(void)
175 /* setup extra Mainstone irqs */
176 for(irq
= MAINSTONE_IRQ(0); irq
<= MAINSTONE_IRQ(15); irq
++) {
177 set_irq_chip(irq
, &mainstone_irq_chip
);
178 set_irq_handler(irq
, handle_level_irq
);
179 if (irq
== MAINSTONE_IRQ(10) || irq
== MAINSTONE_IRQ(14))
180 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
| IRQF_NOAUTOEN
);
182 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
);
184 set_irq_flags(MAINSTONE_IRQ(8), 0);
185 set_irq_flags(MAINSTONE_IRQ(12), 0);
190 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler
);
191 set_irq_type(IRQ_GPIO(0), IRQT_FALLING
);
196 static int mainstone_irq_resume(struct sys_device
*dev
)
198 MST_INTMSKENA
= mainstone_irq_enabled
;
202 static struct sysdev_class mainstone_irq_sysclass
= {
204 .resume
= mainstone_irq_resume
,
207 static struct sys_device mainstone_irq_device
= {
208 .cls
= &mainstone_irq_sysclass
,
211 static int __init
mainstone_irq_device_init(void)
215 if (machine_is_mainstone()) {
216 ret
= sysdev_class_register(&mainstone_irq_sysclass
);
218 ret
= sysdev_register(&mainstone_irq_device
);
223 device_initcall(mainstone_irq_device_init
);
228 static struct resource smc91x_resources
[] = {
230 .start
= (MST_ETH_PHYS
+ 0x300),
231 .end
= (MST_ETH_PHYS
+ 0xfffff),
232 .flags
= IORESOURCE_MEM
,
235 .start
= MAINSTONE_IRQ(3),
236 .end
= MAINSTONE_IRQ(3),
237 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
241 static struct platform_device smc91x_device
= {
244 .num_resources
= ARRAY_SIZE(smc91x_resources
),
245 .resource
= smc91x_resources
,
248 static int mst_audio_startup(struct snd_pcm_substream
*substream
, void *priv
)
250 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
251 MST_MSCWR2
&= ~MST_MSCWR2_AC97_SPKROFF
;
255 static void mst_audio_shutdown(struct snd_pcm_substream
*substream
, void *priv
)
257 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
258 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
261 static long mst_audio_suspend_mask
;
263 static void mst_audio_suspend(void *priv
)
265 mst_audio_suspend_mask
= MST_MSCWR2
;
266 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
269 static void mst_audio_resume(void *priv
)
271 MST_MSCWR2
&= mst_audio_suspend_mask
| ~MST_MSCWR2_AC97_SPKROFF
;
274 static pxa2xx_audio_ops_t mst_audio_ops
= {
275 .startup
= mst_audio_startup
,
276 .shutdown
= mst_audio_shutdown
,
277 .suspend
= mst_audio_suspend
,
278 .resume
= mst_audio_resume
,
281 static struct platform_device mst_audio_device
= {
282 .name
= "pxa2xx-ac97",
284 .dev
= { .platform_data
= &mst_audio_ops
},
287 static struct resource flash_resources
[] = {
289 .start
= PXA_CS0_PHYS
,
290 .end
= PXA_CS0_PHYS
+ SZ_64M
- 1,
291 .flags
= IORESOURCE_MEM
,
294 .start
= PXA_CS1_PHYS
,
295 .end
= PXA_CS1_PHYS
+ SZ_64M
- 1,
296 .flags
= IORESOURCE_MEM
,
300 static struct mtd_partition mainstoneflash0_partitions
[] = {
302 .name
= "Bootloader",
305 .mask_flags
= MTD_WRITEABLE
/* force read-only */
309 .offset
= 0x00040000,
311 .name
= "Filesystem",
312 .size
= MTDPART_SIZ_FULL
,
317 static struct flash_platform_data mst_flash_data
[2] = {
319 .map_name
= "cfi_probe",
320 .parts
= mainstoneflash0_partitions
,
321 .nr_parts
= ARRAY_SIZE(mainstoneflash0_partitions
),
323 .map_name
= "cfi_probe",
329 static struct platform_device mst_flash_device
[2] = {
331 .name
= "pxa2xx-flash",
334 .platform_data
= &mst_flash_data
[0],
336 .resource
= &flash_resources
[0],
340 .name
= "pxa2xx-flash",
343 .platform_data
= &mst_flash_data
[1],
345 .resource
= &flash_resources
[1],
350 #ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
351 static int mainstone_backlight_update_status(struct backlight_device
*bl
)
353 int brightness
= bl
->props
.brightness
;
355 if (bl
->props
.power
!= FB_BLANK_UNBLANK
||
356 bl
->props
.fb_blank
!= FB_BLANK_UNBLANK
)
360 pxa_set_cken(CKEN_PWM0
, 1);
363 PWM_PWDUTY0
= brightness
;
364 PWM_PERVAL0
= bl
->props
.max_brightness
;
367 pxa_set_cken(CKEN_PWM0
, 0);
368 return 0; /* pointless return value */
371 static int mainstone_backlight_get_brightness(struct backlight_device
*bl
)
376 static /*const*/ struct backlight_ops mainstone_backlight_ops
= {
377 .update_status
= mainstone_backlight_update_status
,
378 .get_brightness
= mainstone_backlight_get_brightness
,
381 static void __init
mainstone_backlight_register(void)
383 struct backlight_device
*bl
;
385 bl
= backlight_device_register("mainstone-bl", &pxa_device_fb
.dev
,
386 NULL
, &mainstone_backlight_ops
);
388 printk(KERN_ERR
"mainstone: unable to register backlight: %ld\n",
394 * broken design - register-then-setup interfaces are
395 * utterly broken by definition.
397 bl
->props
.max_brightness
= 1023;
398 bl
->props
.brightness
= 1023;
399 backlight_update_status(bl
);
402 #define mainstone_backlight_register() do { } while (0)
405 static struct pxafb_mode_info toshiba_ltm04c380k_mode
= {
416 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
419 static struct pxafb_mode_info toshiba_ltm035a776c_mode
= {
430 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
433 static struct pxafb_mach_info mainstone_pxafb_info
= {
439 static int mainstone_mci_init(struct device
*dev
, irq_handler_t mstone_detect_int
, void *data
)
443 /* make sure SD/Memory Stick multiplexer's signals
444 * are routed to MMC controller
446 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
448 err
= request_irq(MAINSTONE_MMC_IRQ
, mstone_detect_int
, IRQF_DISABLED
,
449 "MMC card detect", data
);
451 printk(KERN_ERR
"mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
456 static void mainstone_mci_setpower(struct device
*dev
, unsigned int vdd
)
458 struct pxamci_platform_data
* p_d
= dev
->platform_data
;
460 if (( 1 << vdd
) & p_d
->ocr_mask
) {
461 printk(KERN_DEBUG
"%s: on\n", __func__
);
462 MST_MSCWR1
|= MST_MSCWR1_MMC_ON
;
463 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
465 printk(KERN_DEBUG
"%s: off\n", __func__
);
466 MST_MSCWR1
&= ~MST_MSCWR1_MMC_ON
;
470 static void mainstone_mci_exit(struct device
*dev
, void *data
)
472 free_irq(MAINSTONE_MMC_IRQ
, data
);
475 static struct pxamci_platform_data mainstone_mci_platform_data
= {
476 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
477 .init
= mainstone_mci_init
,
478 .setpower
= mainstone_mci_setpower
,
479 .exit
= mainstone_mci_exit
,
482 static void mainstone_irda_transceiver_mode(struct device
*dev
, int mode
)
486 local_irq_save(flags
);
487 if (mode
& IR_SIRMODE
) {
488 MST_MSCWR1
&= ~MST_MSCWR1_IRDA_FIR
;
489 } else if (mode
& IR_FIRMODE
) {
490 MST_MSCWR1
|= MST_MSCWR1_IRDA_FIR
;
493 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_OFF
;
495 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_FULL
;
497 local_irq_restore(flags
);
500 static struct pxaficp_platform_data mainstone_ficp_platform_data
= {
501 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
| IR_OFF
,
502 .transceiver_mode
= mainstone_irda_transceiver_mode
,
505 static struct gpio_keys_button gpio_keys_button
[] = {
515 static struct gpio_keys_platform_data mainstone_gpio_keys
= {
516 .buttons
= gpio_keys_button
,
520 static struct platform_device mst_gpio_keys_device
= {
524 .platform_data
= &mainstone_gpio_keys
,
528 static struct platform_device
*platform_devices
[] __initdata
= {
531 &mst_flash_device
[0],
532 &mst_flash_device
[1],
533 &mst_gpio_keys_device
,
536 static int mainstone_ohci_init(struct device
*dev
)
538 /* Set the Power Control Polarity Low and Power Sense
539 Polarity Low to active low. */
540 UHCHR
= (UHCHR
| UHCHR_PCPL
| UHCHR_PSPL
) &
541 ~(UHCHR_SSEP1
| UHCHR_SSEP2
| UHCHR_SSEP3
| UHCHR_SSE
);
546 static struct pxaohci_platform_data mainstone_ohci_platform_data
= {
547 .port_mode
= PMM_PERPORT_MODE
,
548 .init
= mainstone_ohci_init
,
551 static void __init
mainstone_init(void)
553 int SW7
= 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
555 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config
));
557 mst_flash_data
[0].width
= (BOOT_DEF
& 1) ? 2 : 4;
558 mst_flash_data
[1].width
= 4;
560 /* Compensate for SW7 which swaps the flash banks */
561 mst_flash_data
[SW7
].name
= "processor-flash";
562 mst_flash_data
[SW7
^ 1].name
= "mainboard-flash";
564 printk(KERN_NOTICE
"Mainstone configured to boot from %s\n",
565 mst_flash_data
[0].name
);
567 /* system bus arbiter setting
569 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
571 ARB_CNTRL
= ARB_CORE_PARK
| 0x234;
573 platform_add_devices(platform_devices
, ARRAY_SIZE(platform_devices
));
575 /* reading Mainstone's "Virtual Configuration Register"
576 might be handy to select LCD type here */
578 mainstone_pxafb_info
.modes
= &toshiba_ltm04c380k_mode
;
580 mainstone_pxafb_info
.modes
= &toshiba_ltm035a776c_mode
;
582 set_pxa_fb_info(&mainstone_pxafb_info
);
583 mainstone_backlight_register();
585 pxa_set_mci_info(&mainstone_mci_platform_data
);
586 pxa_set_ficp_info(&mainstone_ficp_platform_data
);
587 pxa_set_ohci_info(&mainstone_ohci_platform_data
);
591 static struct map_desc mainstone_io_desc
[] __initdata
= {
593 .virtual = MST_FPGA_VIRT
,
594 .pfn
= __phys_to_pfn(MST_FPGA_PHYS
),
595 .length
= 0x00100000,
600 static void __init
mainstone_map_io(void)
603 iotable_init(mainstone_io_desc
, ARRAY_SIZE(mainstone_io_desc
));
605 /* for use I SRAM as framebuffer. */
610 MACHINE_START(MAINSTONE
, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
611 /* Maintainer: MontaVista Software Inc. */
612 .phys_io
= 0x40000000,
613 .boot_params
= 0xa0000100, /* BLOB boot parameter setting */
614 .io_pg_offst
= (io_p2v(0x40000000) >> 18) & 0xfffc,
615 .map_io
= mainstone_map_io
,
616 .init_irq
= mainstone_init_irq
,
618 .init_machine
= mainstone_init
,