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>
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/i2c.h>
50 #include <asm/arch/mmc.h>
51 #include <asm/arch/irda.h>
52 #include <asm/arch/ohci.h>
53 #include <asm/arch/pxa27x_keypad.h>
58 static unsigned long mainstone_pin_config
[] = {
62 /* LCD - 16bpp Active TFT */
83 GPIO16_PWM0_OUT
, /* Backlight */
113 GPIO93_KP_DKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
114 GPIO94_KP_DKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
115 GPIO95_KP_DKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
116 GPIO100_KP_MKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
117 GPIO101_KP_MKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
118 GPIO102_KP_MKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
119 GPIO97_KP_MKIN_3
| WAKEUP_ON_LEVEL_HIGH
,
120 GPIO98_KP_MKIN_4
| WAKEUP_ON_LEVEL_HIGH
,
121 GPIO99_KP_MKIN_5
| WAKEUP_ON_LEVEL_HIGH
,
131 GPIO1_GPIO
| WAKEUP_ON_EDGE_BOTH
,
134 static unsigned long mainstone_irq_enabled
;
136 static void mainstone_mask_irq(unsigned int irq
)
138 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
139 MST_INTMSKENA
= (mainstone_irq_enabled
&= ~(1 << mainstone_irq
));
142 static void mainstone_unmask_irq(unsigned int irq
)
144 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
145 /* the irq can be acknowledged only if deasserted, so it's done here */
146 MST_INTSETCLR
&= ~(1 << mainstone_irq
);
147 MST_INTMSKENA
= (mainstone_irq_enabled
|= (1 << mainstone_irq
));
150 static struct irq_chip mainstone_irq_chip
= {
152 .ack
= mainstone_mask_irq
,
153 .mask
= mainstone_mask_irq
,
154 .unmask
= mainstone_unmask_irq
,
157 static void mainstone_irq_handler(unsigned int irq
, struct irq_desc
*desc
)
159 unsigned long pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
161 GEDR(0) = GPIO_bit(0); /* clear useless edge notification */
162 if (likely(pending
)) {
163 irq
= MAINSTONE_IRQ(0) + __ffs(pending
);
164 desc
= irq_desc
+ irq
;
165 desc_handle_irq(irq
, desc
);
167 pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
171 static void __init
mainstone_init_irq(void)
177 /* setup extra Mainstone irqs */
178 for(irq
= MAINSTONE_IRQ(0); irq
<= MAINSTONE_IRQ(15); irq
++) {
179 set_irq_chip(irq
, &mainstone_irq_chip
);
180 set_irq_handler(irq
, handle_level_irq
);
181 if (irq
== MAINSTONE_IRQ(10) || irq
== MAINSTONE_IRQ(14))
182 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
| IRQF_NOAUTOEN
);
184 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
);
186 set_irq_flags(MAINSTONE_IRQ(8), 0);
187 set_irq_flags(MAINSTONE_IRQ(12), 0);
192 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler
);
193 set_irq_type(IRQ_GPIO(0), IRQT_FALLING
);
198 static int mainstone_irq_resume(struct sys_device
*dev
)
200 MST_INTMSKENA
= mainstone_irq_enabled
;
204 static struct sysdev_class mainstone_irq_sysclass
= {
206 .resume
= mainstone_irq_resume
,
209 static struct sys_device mainstone_irq_device
= {
210 .cls
= &mainstone_irq_sysclass
,
213 static int __init
mainstone_irq_device_init(void)
217 if (machine_is_mainstone()) {
218 ret
= sysdev_class_register(&mainstone_irq_sysclass
);
220 ret
= sysdev_register(&mainstone_irq_device
);
225 device_initcall(mainstone_irq_device_init
);
230 static struct resource smc91x_resources
[] = {
232 .start
= (MST_ETH_PHYS
+ 0x300),
233 .end
= (MST_ETH_PHYS
+ 0xfffff),
234 .flags
= IORESOURCE_MEM
,
237 .start
= MAINSTONE_IRQ(3),
238 .end
= MAINSTONE_IRQ(3),
239 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
243 static struct platform_device smc91x_device
= {
246 .num_resources
= ARRAY_SIZE(smc91x_resources
),
247 .resource
= smc91x_resources
,
250 static int mst_audio_startup(struct snd_pcm_substream
*substream
, void *priv
)
252 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
253 MST_MSCWR2
&= ~MST_MSCWR2_AC97_SPKROFF
;
257 static void mst_audio_shutdown(struct snd_pcm_substream
*substream
, void *priv
)
259 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
260 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
263 static long mst_audio_suspend_mask
;
265 static void mst_audio_suspend(void *priv
)
267 mst_audio_suspend_mask
= MST_MSCWR2
;
268 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
271 static void mst_audio_resume(void *priv
)
273 MST_MSCWR2
&= mst_audio_suspend_mask
| ~MST_MSCWR2_AC97_SPKROFF
;
276 static pxa2xx_audio_ops_t mst_audio_ops
= {
277 .startup
= mst_audio_startup
,
278 .shutdown
= mst_audio_shutdown
,
279 .suspend
= mst_audio_suspend
,
280 .resume
= mst_audio_resume
,
283 static struct resource flash_resources
[] = {
285 .start
= PXA_CS0_PHYS
,
286 .end
= PXA_CS0_PHYS
+ SZ_64M
- 1,
287 .flags
= IORESOURCE_MEM
,
290 .start
= PXA_CS1_PHYS
,
291 .end
= PXA_CS1_PHYS
+ SZ_64M
- 1,
292 .flags
= IORESOURCE_MEM
,
296 static struct mtd_partition mainstoneflash0_partitions
[] = {
298 .name
= "Bootloader",
301 .mask_flags
= MTD_WRITEABLE
/* force read-only */
305 .offset
= 0x00040000,
307 .name
= "Filesystem",
308 .size
= MTDPART_SIZ_FULL
,
313 static struct flash_platform_data mst_flash_data
[2] = {
315 .map_name
= "cfi_probe",
316 .parts
= mainstoneflash0_partitions
,
317 .nr_parts
= ARRAY_SIZE(mainstoneflash0_partitions
),
319 .map_name
= "cfi_probe",
325 static struct platform_device mst_flash_device
[2] = {
327 .name
= "pxa2xx-flash",
330 .platform_data
= &mst_flash_data
[0],
332 .resource
= &flash_resources
[0],
336 .name
= "pxa2xx-flash",
339 .platform_data
= &mst_flash_data
[1],
341 .resource
= &flash_resources
[1],
346 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
347 static struct platform_pwm_backlight_data mainstone_backlight_data
= {
349 .max_brightness
= 1023,
350 .dft_brightness
= 1023,
351 .pwm_period_ns
= 78770,
354 static struct platform_device mainstone_backlight_device
= {
355 .name
= "pwm-backlight",
357 .parent
= &pxa27x_device_pwm0
.dev
,
358 .platform_data
= &mainstone_backlight_data
,
362 static void __init
mainstone_backlight_register(void)
364 int ret
= platform_device_register(&mainstone_backlight_device
);
366 printk(KERN_ERR
"mainstone: failed to register backlight device: %d\n", ret
);
369 #define mainstone_backlight_register() do { } while (0)
372 static struct pxafb_mode_info toshiba_ltm04c380k_mode
= {
383 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
386 static struct pxafb_mode_info toshiba_ltm035a776c_mode
= {
397 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
400 static struct pxafb_mach_info mainstone_pxafb_info
= {
402 .lcd_conn
= LCD_COLOR_TFT_16BPP
| LCD_PCLK_EDGE_FALL
,
405 static int mainstone_mci_init(struct device
*dev
, irq_handler_t mstone_detect_int
, void *data
)
409 /* make sure SD/Memory Stick multiplexer's signals
410 * are routed to MMC controller
412 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
414 err
= request_irq(MAINSTONE_MMC_IRQ
, mstone_detect_int
, IRQF_DISABLED
,
415 "MMC card detect", data
);
417 printk(KERN_ERR
"mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
422 static void mainstone_mci_setpower(struct device
*dev
, unsigned int vdd
)
424 struct pxamci_platform_data
* p_d
= dev
->platform_data
;
426 if (( 1 << vdd
) & p_d
->ocr_mask
) {
427 printk(KERN_DEBUG
"%s: on\n", __func__
);
428 MST_MSCWR1
|= MST_MSCWR1_MMC_ON
;
429 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
431 printk(KERN_DEBUG
"%s: off\n", __func__
);
432 MST_MSCWR1
&= ~MST_MSCWR1_MMC_ON
;
436 static void mainstone_mci_exit(struct device
*dev
, void *data
)
438 free_irq(MAINSTONE_MMC_IRQ
, data
);
441 static struct pxamci_platform_data mainstone_mci_platform_data
= {
442 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
443 .init
= mainstone_mci_init
,
444 .setpower
= mainstone_mci_setpower
,
445 .exit
= mainstone_mci_exit
,
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
;
459 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_OFF
;
461 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_FULL
;
463 local_irq_restore(flags
);
466 static struct pxaficp_platform_data mainstone_ficp_platform_data
= {
467 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
| IR_OFF
,
468 .transceiver_mode
= mainstone_irda_transceiver_mode
,
471 static struct gpio_keys_button gpio_keys_button
[] = {
481 static struct gpio_keys_platform_data mainstone_gpio_keys
= {
482 .buttons
= gpio_keys_button
,
486 static struct platform_device mst_gpio_keys_device
= {
490 .platform_data
= &mainstone_gpio_keys
,
494 static struct platform_device
*platform_devices
[] __initdata
= {
496 &mst_flash_device
[0],
497 &mst_flash_device
[1],
498 &mst_gpio_keys_device
,
501 static int mainstone_ohci_init(struct device
*dev
)
503 /* Set the Power Control Polarity Low and Power Sense
504 Polarity Low to active low. */
505 UHCHR
= (UHCHR
| UHCHR_PCPL
| UHCHR_PSPL
) &
506 ~(UHCHR_SSEP1
| UHCHR_SSEP2
| UHCHR_SSEP3
| UHCHR_SSE
);
511 static struct pxaohci_platform_data mainstone_ohci_platform_data
= {
512 .port_mode
= PMM_PERPORT_MODE
,
513 .init
= mainstone_ohci_init
,
516 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULES)
517 static unsigned int mainstone_matrix_keys
[] = {
518 KEY(0, 0, KEY_A
), KEY(1, 0, KEY_B
), KEY(2, 0, KEY_C
),
519 KEY(3, 0, KEY_D
), KEY(4, 0, KEY_E
), KEY(5, 0, KEY_F
),
520 KEY(0, 1, KEY_G
), KEY(1, 1, KEY_H
), KEY(2, 1, KEY_I
),
521 KEY(3, 1, KEY_J
), KEY(4, 1, KEY_K
), KEY(5, 1, KEY_L
),
522 KEY(0, 2, KEY_M
), KEY(1, 2, KEY_N
), KEY(2, 2, KEY_O
),
523 KEY(3, 2, KEY_P
), KEY(4, 2, KEY_Q
), KEY(5, 2, KEY_R
),
524 KEY(0, 3, KEY_S
), KEY(1, 3, KEY_T
), KEY(2, 3, KEY_U
),
525 KEY(3, 3, KEY_V
), KEY(4, 3, KEY_W
), KEY(5, 3, KEY_X
),
526 KEY(2, 4, KEY_Y
), KEY(3, 4, KEY_Z
),
528 KEY(0, 4, KEY_DOT
), /* . */
529 KEY(1, 4, KEY_CLOSE
), /* @ */
530 KEY(4, 4, KEY_SLASH
),
531 KEY(5, 4, KEY_BACKSLASH
),
533 KEY(1, 5, KEY_LEFTSHIFT
),
534 KEY(2, 5, KEY_SPACE
),
535 KEY(3, 5, KEY_SPACE
),
536 KEY(4, 5, KEY_ENTER
),
537 KEY(5, 5, KEY_BACKSPACE
),
542 KEY(3, 6, KEY_RIGHT
),
543 KEY(4, 6, KEY_SELECT
),
546 struct pxa27x_keypad_platform_data mainstone_keypad_info
= {
547 .matrix_key_rows
= 6,
548 .matrix_key_cols
= 7,
549 .matrix_key_map
= mainstone_matrix_keys
,
550 .matrix_key_map_size
= ARRAY_SIZE(mainstone_matrix_keys
),
553 .rotary0_up_key
= KEY_UP
,
554 .rotary0_down_key
= KEY_DOWN
,
556 .debounce_interval
= 30,
559 static void __init
mainstone_init_keypad(void)
561 pxa_set_keypad_info(&mainstone_keypad_info
);
564 static inline void mainstone_init_keypad(void) {}
567 static void __init
mainstone_init(void)
569 int SW7
= 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
571 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config
));
573 mst_flash_data
[0].width
= (BOOT_DEF
& 1) ? 2 : 4;
574 mst_flash_data
[1].width
= 4;
576 /* Compensate for SW7 which swaps the flash banks */
577 mst_flash_data
[SW7
].name
= "processor-flash";
578 mst_flash_data
[SW7
^ 1].name
= "mainboard-flash";
580 printk(KERN_NOTICE
"Mainstone configured to boot from %s\n",
581 mst_flash_data
[0].name
);
583 /* system bus arbiter setting
585 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
587 ARB_CNTRL
= ARB_CORE_PARK
| 0x234;
589 platform_add_devices(platform_devices
, ARRAY_SIZE(platform_devices
));
591 /* reading Mainstone's "Virtual Configuration Register"
592 might be handy to select LCD type here */
594 mainstone_pxafb_info
.modes
= &toshiba_ltm04c380k_mode
;
596 mainstone_pxafb_info
.modes
= &toshiba_ltm035a776c_mode
;
598 set_pxa_fb_info(&mainstone_pxafb_info
);
599 mainstone_backlight_register();
601 pxa_set_mci_info(&mainstone_mci_platform_data
);
602 pxa_set_ficp_info(&mainstone_ficp_platform_data
);
603 pxa_set_ohci_info(&mainstone_ohci_platform_data
);
604 pxa_set_i2c_info(NULL
);
605 pxa_set_ac97_info(&mst_audio_ops
);
607 mainstone_init_keypad();
611 static struct map_desc mainstone_io_desc
[] __initdata
= {
613 .virtual = MST_FPGA_VIRT
,
614 .pfn
= __phys_to_pfn(MST_FPGA_PHYS
),
615 .length
= 0x00100000,
620 static void __init
mainstone_map_io(void)
623 iotable_init(mainstone_io_desc
, ARRAY_SIZE(mainstone_io_desc
));
625 /* for use I SRAM as framebuffer. */
630 MACHINE_START(MAINSTONE
, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
631 /* Maintainer: MontaVista Software Inc. */
632 .phys_io
= 0x40000000,
633 .boot_params
= 0xa0000100, /* BLOB boot parameter setting */
634 .io_pg_offst
= (io_p2v(0x40000000) >> 18) & 0xfffc,
635 .map_io
= mainstone_map_io
,
636 .init_irq
= mainstone_init_irq
,
638 .init_machine
= mainstone_init
,