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), IRQT_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
,