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.
15 #include <linux/gpio.h>
16 #include <linux/init.h>
17 #include <linux/platform_device.h>
18 #include <linux/syscore_ops.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>
30 #include <linux/i2c/pxa-i2c.h>
32 #include <asm/types.h>
33 #include <asm/setup.h>
34 #include <asm/memory.h>
35 #include <asm/mach-types.h>
36 #include <mach/hardware.h>
38 #include <asm/sizes.h>
40 #include <asm/mach/arch.h>
41 #include <asm/mach/map.h>
42 #include <asm/mach/irq.h>
43 #include <asm/mach/flash.h>
45 #include <mach/pxa27x.h>
46 #include <mach/mainstone.h>
47 #include <mach/audio.h>
48 #include <mach/pxafb.h>
50 #include <mach/irda.h>
51 #include <mach/ohci.h>
52 #include <plat/pxa27x_keypad.h>
53 #include <mach/smemc.h>
58 static unsigned long mainstone_pin_config
[] = {
62 /* LCD - 16bpp Active TFT */
64 GPIO16_PWM0_OUT
, /* Backlight */
92 GPIO29_AC97_SDATA_IN_0
,
93 GPIO30_AC97_SDATA_OUT
,
101 GPIO100_KP_MKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
102 GPIO101_KP_MKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
103 GPIO102_KP_MKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
104 GPIO97_KP_MKIN_3
| WAKEUP_ON_LEVEL_HIGH
,
105 GPIO98_KP_MKIN_4
| WAKEUP_ON_LEVEL_HIGH
,
106 GPIO99_KP_MKIN_5
| WAKEUP_ON_LEVEL_HIGH
,
120 GPIO1_GPIO
| WAKEUP_ON_EDGE_BOTH
,
123 static unsigned long mainstone_irq_enabled
;
125 static void mainstone_mask_irq(struct irq_data
*d
)
127 int mainstone_irq
= (d
->irq
- MAINSTONE_IRQ(0));
128 MST_INTMSKENA
= (mainstone_irq_enabled
&= ~(1 << mainstone_irq
));
131 static void mainstone_unmask_irq(struct irq_data
*d
)
133 int mainstone_irq
= (d
->irq
- MAINSTONE_IRQ(0));
134 /* the irq can be acknowledged only if deasserted, so it's done here */
135 MST_INTSETCLR
&= ~(1 << mainstone_irq
);
136 MST_INTMSKENA
= (mainstone_irq_enabled
|= (1 << mainstone_irq
));
139 static struct irq_chip mainstone_irq_chip
= {
141 .irq_ack
= mainstone_mask_irq
,
142 .irq_mask
= mainstone_mask_irq
,
143 .irq_unmask
= mainstone_unmask_irq
,
146 static void mainstone_irq_handler(unsigned int irq
, struct irq_desc
*desc
)
148 unsigned long pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
150 /* clear useless edge notification */
151 desc
->irq_data
.chip
->irq_ack(&desc
->irq_data
);
152 if (likely(pending
)) {
153 irq
= MAINSTONE_IRQ(0) + __ffs(pending
);
154 generic_handle_irq(irq
);
156 pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
160 static void __init
mainstone_init_irq(void)
166 /* setup extra Mainstone irqs */
167 for(irq
= MAINSTONE_IRQ(0); irq
<= MAINSTONE_IRQ(15); irq
++) {
168 irq_set_chip_and_handler(irq
, &mainstone_irq_chip
,
170 if (irq
== MAINSTONE_IRQ(10) || irq
== MAINSTONE_IRQ(14))
171 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
| IRQF_NOAUTOEN
);
173 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
);
175 set_irq_flags(MAINSTONE_IRQ(8), 0);
176 set_irq_flags(MAINSTONE_IRQ(12), 0);
181 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler
);
182 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING
);
187 static void mainstone_irq_resume(void)
189 MST_INTMSKENA
= mainstone_irq_enabled
;
192 static struct syscore_ops mainstone_irq_syscore_ops
= {
193 .resume
= mainstone_irq_resume
,
196 static int __init
mainstone_irq_device_init(void)
198 if (machine_is_mainstone())
199 register_syscore_ops(&mainstone_irq_syscore_ops
);
204 device_initcall(mainstone_irq_device_init
);
209 static struct resource smc91x_resources
[] = {
211 .start
= (MST_ETH_PHYS
+ 0x300),
212 .end
= (MST_ETH_PHYS
+ 0xfffff),
213 .flags
= IORESOURCE_MEM
,
216 .start
= MAINSTONE_IRQ(3),
217 .end
= MAINSTONE_IRQ(3),
218 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
222 static struct smc91x_platdata mainstone_smc91x_info
= {
223 .flags
= SMC91X_USE_8BIT
| SMC91X_USE_16BIT
| SMC91X_USE_32BIT
|
224 SMC91X_NOWAIT
| SMC91X_USE_DMA
,
227 static struct platform_device smc91x_device
= {
230 .num_resources
= ARRAY_SIZE(smc91x_resources
),
231 .resource
= smc91x_resources
,
233 .platform_data
= &mainstone_smc91x_info
,
237 static int mst_audio_startup(struct snd_pcm_substream
*substream
, void *priv
)
239 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
240 MST_MSCWR2
&= ~MST_MSCWR2_AC97_SPKROFF
;
244 static void mst_audio_shutdown(struct snd_pcm_substream
*substream
, void *priv
)
246 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
247 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
250 static long mst_audio_suspend_mask
;
252 static void mst_audio_suspend(void *priv
)
254 mst_audio_suspend_mask
= MST_MSCWR2
;
255 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
258 static void mst_audio_resume(void *priv
)
260 MST_MSCWR2
&= mst_audio_suspend_mask
| ~MST_MSCWR2_AC97_SPKROFF
;
263 static pxa2xx_audio_ops_t mst_audio_ops
= {
264 .startup
= mst_audio_startup
,
265 .shutdown
= mst_audio_shutdown
,
266 .suspend
= mst_audio_suspend
,
267 .resume
= mst_audio_resume
,
270 static struct resource flash_resources
[] = {
272 .start
= PXA_CS0_PHYS
,
273 .end
= PXA_CS0_PHYS
+ SZ_64M
- 1,
274 .flags
= IORESOURCE_MEM
,
277 .start
= PXA_CS1_PHYS
,
278 .end
= PXA_CS1_PHYS
+ SZ_64M
- 1,
279 .flags
= IORESOURCE_MEM
,
283 static struct mtd_partition mainstoneflash0_partitions
[] = {
285 .name
= "Bootloader",
288 .mask_flags
= MTD_WRITEABLE
/* force read-only */
292 .offset
= 0x00040000,
294 .name
= "Filesystem",
295 .size
= MTDPART_SIZ_FULL
,
300 static struct flash_platform_data mst_flash_data
[2] = {
302 .map_name
= "cfi_probe",
303 .parts
= mainstoneflash0_partitions
,
304 .nr_parts
= ARRAY_SIZE(mainstoneflash0_partitions
),
306 .map_name
= "cfi_probe",
312 static struct platform_device mst_flash_device
[2] = {
314 .name
= "pxa2xx-flash",
317 .platform_data
= &mst_flash_data
[0],
319 .resource
= &flash_resources
[0],
323 .name
= "pxa2xx-flash",
326 .platform_data
= &mst_flash_data
[1],
328 .resource
= &flash_resources
[1],
333 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
334 static struct platform_pwm_backlight_data mainstone_backlight_data
= {
336 .max_brightness
= 1023,
337 .dft_brightness
= 1023,
338 .pwm_period_ns
= 78770,
341 static struct platform_device mainstone_backlight_device
= {
342 .name
= "pwm-backlight",
344 .parent
= &pxa27x_device_pwm0
.dev
,
345 .platform_data
= &mainstone_backlight_data
,
349 static void __init
mainstone_backlight_register(void)
351 int ret
= platform_device_register(&mainstone_backlight_device
);
353 printk(KERN_ERR
"mainstone: failed to register backlight device: %d\n", ret
);
356 #define mainstone_backlight_register() do { } while (0)
359 static struct pxafb_mode_info toshiba_ltm04c380k_mode
= {
370 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
373 static struct pxafb_mode_info toshiba_ltm035a776c_mode
= {
384 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
387 static struct pxafb_mach_info mainstone_pxafb_info
= {
389 .lcd_conn
= LCD_COLOR_TFT_16BPP
| LCD_PCLK_EDGE_FALL
,
392 static int mainstone_mci_init(struct device
*dev
, irq_handler_t mstone_detect_int
, void *data
)
396 /* make sure SD/Memory Stick multiplexer's signals
397 * are routed to MMC controller
399 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
401 err
= request_irq(MAINSTONE_MMC_IRQ
, mstone_detect_int
, IRQF_DISABLED
,
402 "MMC card detect", data
);
404 printk(KERN_ERR
"mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
409 static void mainstone_mci_setpower(struct device
*dev
, unsigned int vdd
)
411 struct pxamci_platform_data
* p_d
= dev
->platform_data
;
413 if (( 1 << vdd
) & p_d
->ocr_mask
) {
414 printk(KERN_DEBUG
"%s: on\n", __func__
);
415 MST_MSCWR1
|= MST_MSCWR1_MMC_ON
;
416 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
418 printk(KERN_DEBUG
"%s: off\n", __func__
);
419 MST_MSCWR1
&= ~MST_MSCWR1_MMC_ON
;
423 static void mainstone_mci_exit(struct device
*dev
, void *data
)
425 free_irq(MAINSTONE_MMC_IRQ
, data
);
428 static struct pxamci_platform_data mainstone_mci_platform_data
= {
429 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
430 .init
= mainstone_mci_init
,
431 .setpower
= mainstone_mci_setpower
,
432 .exit
= mainstone_mci_exit
,
433 .gpio_card_detect
= -1,
438 static void mainstone_irda_transceiver_mode(struct device
*dev
, int mode
)
442 local_irq_save(flags
);
443 if (mode
& IR_SIRMODE
) {
444 MST_MSCWR1
&= ~MST_MSCWR1_IRDA_FIR
;
445 } else if (mode
& IR_FIRMODE
) {
446 MST_MSCWR1
|= MST_MSCWR1_IRDA_FIR
;
448 pxa2xx_transceiver_mode(dev
, mode
);
450 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_OFF
;
452 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_FULL
;
454 local_irq_restore(flags
);
457 static struct pxaficp_platform_data mainstone_ficp_platform_data
= {
459 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
| IR_OFF
,
460 .transceiver_mode
= mainstone_irda_transceiver_mode
,
463 static struct gpio_keys_button gpio_keys_button
[] = {
473 static struct gpio_keys_platform_data mainstone_gpio_keys
= {
474 .buttons
= gpio_keys_button
,
478 static struct platform_device mst_gpio_keys_device
= {
482 .platform_data
= &mainstone_gpio_keys
,
486 static struct platform_device
*platform_devices
[] __initdata
= {
488 &mst_flash_device
[0],
489 &mst_flash_device
[1],
490 &mst_gpio_keys_device
,
493 static struct pxaohci_platform_data mainstone_ohci_platform_data
= {
494 .port_mode
= PMM_PERPORT_MODE
,
495 .flags
= ENABLE_PORT_ALL
| POWER_CONTROL_LOW
| POWER_SENSE_LOW
,
498 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
499 static unsigned int mainstone_matrix_keys
[] = {
500 KEY(0, 0, KEY_A
), KEY(1, 0, KEY_B
), KEY(2, 0, KEY_C
),
501 KEY(3, 0, KEY_D
), KEY(4, 0, KEY_E
), KEY(5, 0, KEY_F
),
502 KEY(0, 1, KEY_G
), KEY(1, 1, KEY_H
), KEY(2, 1, KEY_I
),
503 KEY(3, 1, KEY_J
), KEY(4, 1, KEY_K
), KEY(5, 1, KEY_L
),
504 KEY(0, 2, KEY_M
), KEY(1, 2, KEY_N
), KEY(2, 2, KEY_O
),
505 KEY(3, 2, KEY_P
), KEY(4, 2, KEY_Q
), KEY(5, 2, KEY_R
),
506 KEY(0, 3, KEY_S
), KEY(1, 3, KEY_T
), KEY(2, 3, KEY_U
),
507 KEY(3, 3, KEY_V
), KEY(4, 3, KEY_W
), KEY(5, 3, KEY_X
),
508 KEY(2, 4, KEY_Y
), KEY(3, 4, KEY_Z
),
510 KEY(0, 4, KEY_DOT
), /* . */
511 KEY(1, 4, KEY_CLOSE
), /* @ */
512 KEY(4, 4, KEY_SLASH
),
513 KEY(5, 4, KEY_BACKSLASH
),
515 KEY(1, 5, KEY_LEFTSHIFT
),
516 KEY(2, 5, KEY_SPACE
),
517 KEY(3, 5, KEY_SPACE
),
518 KEY(4, 5, KEY_ENTER
),
519 KEY(5, 5, KEY_BACKSPACE
),
524 KEY(3, 6, KEY_RIGHT
),
525 KEY(4, 6, KEY_SELECT
),
528 struct pxa27x_keypad_platform_data mainstone_keypad_info
= {
529 .matrix_key_rows
= 6,
530 .matrix_key_cols
= 7,
531 .matrix_key_map
= mainstone_matrix_keys
,
532 .matrix_key_map_size
= ARRAY_SIZE(mainstone_matrix_keys
),
535 .rotary0_up_key
= KEY_UP
,
536 .rotary0_down_key
= KEY_DOWN
,
538 .debounce_interval
= 30,
541 static void __init
mainstone_init_keypad(void)
543 pxa_set_keypad_info(&mainstone_keypad_info
);
546 static inline void mainstone_init_keypad(void) {}
549 static void __init
mainstone_init(void)
551 int SW7
= 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
553 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config
));
555 pxa_set_ffuart_info(NULL
);
556 pxa_set_btuart_info(NULL
);
557 pxa_set_stuart_info(NULL
);
559 mst_flash_data
[0].width
= (__raw_readl(BOOT_DEF
) & 1) ? 2 : 4;
560 mst_flash_data
[1].width
= 4;
562 /* Compensate for SW7 which swaps the flash banks */
563 mst_flash_data
[SW7
].name
= "processor-flash";
564 mst_flash_data
[SW7
^ 1].name
= "mainboard-flash";
566 printk(KERN_NOTICE
"Mainstone configured to boot from %s\n",
567 mst_flash_data
[0].name
);
569 /* system bus arbiter setting
571 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
573 ARB_CNTRL
= ARB_CORE_PARK
| 0x234;
575 platform_add_devices(platform_devices
, ARRAY_SIZE(platform_devices
));
577 /* reading Mainstone's "Virtual Configuration Register"
578 might be handy to select LCD type here */
580 mainstone_pxafb_info
.modes
= &toshiba_ltm04c380k_mode
;
582 mainstone_pxafb_info
.modes
= &toshiba_ltm035a776c_mode
;
584 pxa_set_fb_info(NULL
, &mainstone_pxafb_info
);
585 mainstone_backlight_register();
587 pxa_set_mci_info(&mainstone_mci_platform_data
);
588 pxa_set_ficp_info(&mainstone_ficp_platform_data
);
589 pxa_set_ohci_info(&mainstone_ohci_platform_data
);
590 pxa_set_i2c_info(NULL
);
591 pxa_set_ac97_info(&mst_audio_ops
);
593 mainstone_init_keypad();
597 static struct map_desc mainstone_io_desc
[] __initdata
= {
599 .virtual = MST_FPGA_VIRT
,
600 .pfn
= __phys_to_pfn(MST_FPGA_PHYS
),
601 .length
= 0x00100000,
606 static void __init
mainstone_map_io(void)
609 iotable_init(mainstone_io_desc
, ARRAY_SIZE(mainstone_io_desc
));
611 /* for use I SRAM as framebuffer. */
616 MACHINE_START(MAINSTONE
, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
617 /* Maintainer: MontaVista Software Inc. */
618 .atag_offset
= 0x100, /* BLOB boot parameter setting */
619 .map_io
= mainstone_map_io
,
620 .nr_irqs
= MAINSTONE_NR_IRQS
,
621 .init_irq
= mainstone_init_irq
,
622 .handle_irq
= pxa27x_handle_irq
,
624 .init_machine
= mainstone_init
,
625 .restart
= pxa_restart
,