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 <mach/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 <mach/pxa27x.h>
45 #include <mach/gpio.h>
46 #include <mach/mainstone.h>
47 #include <mach/audio.h>
48 #include <mach/pxafb.h>
51 #include <mach/irda.h>
52 #include <mach/ohci.h>
53 #include <plat/pxa27x_keypad.h>
54 #include <mach/smemc.h>
59 static unsigned long mainstone_pin_config
[] = {
63 /* LCD - 16bpp Active TFT */
65 GPIO16_PWM0_OUT
, /* Backlight */
93 GPIO29_AC97_SDATA_IN_0
,
94 GPIO30_AC97_SDATA_OUT
,
102 GPIO100_KP_MKIN_0
| WAKEUP_ON_LEVEL_HIGH
,
103 GPIO101_KP_MKIN_1
| WAKEUP_ON_LEVEL_HIGH
,
104 GPIO102_KP_MKIN_2
| WAKEUP_ON_LEVEL_HIGH
,
105 GPIO97_KP_MKIN_3
| WAKEUP_ON_LEVEL_HIGH
,
106 GPIO98_KP_MKIN_4
| WAKEUP_ON_LEVEL_HIGH
,
107 GPIO99_KP_MKIN_5
| WAKEUP_ON_LEVEL_HIGH
,
121 GPIO1_GPIO
| WAKEUP_ON_EDGE_BOTH
,
124 static unsigned long mainstone_irq_enabled
;
126 static void mainstone_mask_irq(unsigned int irq
)
128 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
129 MST_INTMSKENA
= (mainstone_irq_enabled
&= ~(1 << mainstone_irq
));
132 static void mainstone_unmask_irq(unsigned int irq
)
134 int mainstone_irq
= (irq
- MAINSTONE_IRQ(0));
135 /* the irq can be acknowledged only if deasserted, so it's done here */
136 MST_INTSETCLR
&= ~(1 << mainstone_irq
);
137 MST_INTMSKENA
= (mainstone_irq_enabled
|= (1 << mainstone_irq
));
140 static struct irq_chip mainstone_irq_chip
= {
142 .ack
= mainstone_mask_irq
,
143 .mask
= mainstone_mask_irq
,
144 .unmask
= mainstone_unmask_irq
,
147 static void mainstone_irq_handler(unsigned int irq
, struct irq_desc
*desc
)
149 unsigned long pending
= MST_INTSETCLR
& mainstone_irq_enabled
;
151 desc
->chip
->ack(irq
); /* clear useless edge notification */
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 set_irq_chip(irq
, &mainstone_irq_chip
);
169 set_irq_handler(irq
, handle_level_irq
);
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 set_irq_chained_handler(IRQ_GPIO(0), mainstone_irq_handler
);
182 set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING
);
187 static int mainstone_irq_resume(struct sys_device
*dev
)
189 MST_INTMSKENA
= mainstone_irq_enabled
;
193 static struct sysdev_class mainstone_irq_sysclass
= {
195 .resume
= mainstone_irq_resume
,
198 static struct sys_device mainstone_irq_device
= {
199 .cls
= &mainstone_irq_sysclass
,
202 static int __init
mainstone_irq_device_init(void)
206 if (machine_is_mainstone()) {
207 ret
= sysdev_class_register(&mainstone_irq_sysclass
);
209 ret
= sysdev_register(&mainstone_irq_device
);
214 device_initcall(mainstone_irq_device_init
);
219 static struct resource smc91x_resources
[] = {
221 .start
= (MST_ETH_PHYS
+ 0x300),
222 .end
= (MST_ETH_PHYS
+ 0xfffff),
223 .flags
= IORESOURCE_MEM
,
226 .start
= MAINSTONE_IRQ(3),
227 .end
= MAINSTONE_IRQ(3),
228 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
232 static struct smc91x_platdata mainstone_smc91x_info
= {
233 .flags
= SMC91X_USE_8BIT
| SMC91X_USE_16BIT
| SMC91X_USE_32BIT
|
234 SMC91X_NOWAIT
| SMC91X_USE_DMA
,
237 static struct platform_device smc91x_device
= {
240 .num_resources
= ARRAY_SIZE(smc91x_resources
),
241 .resource
= smc91x_resources
,
243 .platform_data
= &mainstone_smc91x_info
,
247 static int mst_audio_startup(struct snd_pcm_substream
*substream
, void *priv
)
249 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
250 MST_MSCWR2
&= ~MST_MSCWR2_AC97_SPKROFF
;
254 static void mst_audio_shutdown(struct snd_pcm_substream
*substream
, void *priv
)
256 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
257 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
260 static long mst_audio_suspend_mask
;
262 static void mst_audio_suspend(void *priv
)
264 mst_audio_suspend_mask
= MST_MSCWR2
;
265 MST_MSCWR2
|= MST_MSCWR2_AC97_SPKROFF
;
268 static void mst_audio_resume(void *priv
)
270 MST_MSCWR2
&= mst_audio_suspend_mask
| ~MST_MSCWR2_AC97_SPKROFF
;
273 static pxa2xx_audio_ops_t mst_audio_ops
= {
274 .startup
= mst_audio_startup
,
275 .shutdown
= mst_audio_shutdown
,
276 .suspend
= mst_audio_suspend
,
277 .resume
= mst_audio_resume
,
280 static struct resource flash_resources
[] = {
282 .start
= PXA_CS0_PHYS
,
283 .end
= PXA_CS0_PHYS
+ SZ_64M
- 1,
284 .flags
= IORESOURCE_MEM
,
287 .start
= PXA_CS1_PHYS
,
288 .end
= PXA_CS1_PHYS
+ SZ_64M
- 1,
289 .flags
= IORESOURCE_MEM
,
293 static struct mtd_partition mainstoneflash0_partitions
[] = {
295 .name
= "Bootloader",
298 .mask_flags
= MTD_WRITEABLE
/* force read-only */
302 .offset
= 0x00040000,
304 .name
= "Filesystem",
305 .size
= MTDPART_SIZ_FULL
,
310 static struct flash_platform_data mst_flash_data
[2] = {
312 .map_name
= "cfi_probe",
313 .parts
= mainstoneflash0_partitions
,
314 .nr_parts
= ARRAY_SIZE(mainstoneflash0_partitions
),
316 .map_name
= "cfi_probe",
322 static struct platform_device mst_flash_device
[2] = {
324 .name
= "pxa2xx-flash",
327 .platform_data
= &mst_flash_data
[0],
329 .resource
= &flash_resources
[0],
333 .name
= "pxa2xx-flash",
336 .platform_data
= &mst_flash_data
[1],
338 .resource
= &flash_resources
[1],
343 #if defined(CONFIG_FB_PXA) || defined(CONFIG_FB_PXA_MODULE)
344 static struct platform_pwm_backlight_data mainstone_backlight_data
= {
346 .max_brightness
= 1023,
347 .dft_brightness
= 1023,
348 .pwm_period_ns
= 78770,
351 static struct platform_device mainstone_backlight_device
= {
352 .name
= "pwm-backlight",
354 .parent
= &pxa27x_device_pwm0
.dev
,
355 .platform_data
= &mainstone_backlight_data
,
359 static void __init
mainstone_backlight_register(void)
361 int ret
= platform_device_register(&mainstone_backlight_device
);
363 printk(KERN_ERR
"mainstone: failed to register backlight device: %d\n", ret
);
366 #define mainstone_backlight_register() do { } while (0)
369 static struct pxafb_mode_info toshiba_ltm04c380k_mode
= {
380 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
383 static struct pxafb_mode_info toshiba_ltm035a776c_mode
= {
394 .sync
= FB_SYNC_HOR_HIGH_ACT
|FB_SYNC_VERT_HIGH_ACT
,
397 static struct pxafb_mach_info mainstone_pxafb_info
= {
399 .lcd_conn
= LCD_COLOR_TFT_16BPP
| LCD_PCLK_EDGE_FALL
,
402 static int mainstone_mci_init(struct device
*dev
, irq_handler_t mstone_detect_int
, void *data
)
406 /* make sure SD/Memory Stick multiplexer's signals
407 * are routed to MMC controller
409 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
411 err
= request_irq(MAINSTONE_MMC_IRQ
, mstone_detect_int
, IRQF_DISABLED
,
412 "MMC card detect", data
);
414 printk(KERN_ERR
"mainstone_mci_init: MMC/SD: can't request MMC card detect IRQ\n");
419 static void mainstone_mci_setpower(struct device
*dev
, unsigned int vdd
)
421 struct pxamci_platform_data
* p_d
= dev
->platform_data
;
423 if (( 1 << vdd
) & p_d
->ocr_mask
) {
424 printk(KERN_DEBUG
"%s: on\n", __func__
);
425 MST_MSCWR1
|= MST_MSCWR1_MMC_ON
;
426 MST_MSCWR1
&= ~MST_MSCWR1_MS_SEL
;
428 printk(KERN_DEBUG
"%s: off\n", __func__
);
429 MST_MSCWR1
&= ~MST_MSCWR1_MMC_ON
;
433 static void mainstone_mci_exit(struct device
*dev
, void *data
)
435 free_irq(MAINSTONE_MMC_IRQ
, data
);
438 static struct pxamci_platform_data mainstone_mci_platform_data
= {
439 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
440 .init
= mainstone_mci_init
,
441 .setpower
= mainstone_mci_setpower
,
442 .exit
= mainstone_mci_exit
,
443 .gpio_card_detect
= -1,
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
;
458 pxa2xx_transceiver_mode(dev
, mode
);
460 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_OFF
;
462 MST_MSCWR1
= (MST_MSCWR1
& ~MST_MSCWR1_IRDA_MASK
) | MST_MSCWR1_IRDA_FULL
;
464 local_irq_restore(flags
);
467 static struct pxaficp_platform_data mainstone_ficp_platform_data
= {
469 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
| IR_OFF
,
470 .transceiver_mode
= mainstone_irda_transceiver_mode
,
473 static struct gpio_keys_button gpio_keys_button
[] = {
483 static struct gpio_keys_platform_data mainstone_gpio_keys
= {
484 .buttons
= gpio_keys_button
,
488 static struct platform_device mst_gpio_keys_device
= {
492 .platform_data
= &mainstone_gpio_keys
,
496 static struct platform_device
*platform_devices
[] __initdata
= {
498 &mst_flash_device
[0],
499 &mst_flash_device
[1],
500 &mst_gpio_keys_device
,
503 static struct pxaohci_platform_data mainstone_ohci_platform_data
= {
504 .port_mode
= PMM_PERPORT_MODE
,
505 .flags
= ENABLE_PORT_ALL
| POWER_CONTROL_LOW
| POWER_SENSE_LOW
,
508 #if defined(CONFIG_KEYBOARD_PXA27x) || defined(CONFIG_KEYBOARD_PXA27x_MODULE)
509 static unsigned int mainstone_matrix_keys
[] = {
510 KEY(0, 0, KEY_A
), KEY(1, 0, KEY_B
), KEY(2, 0, KEY_C
),
511 KEY(3, 0, KEY_D
), KEY(4, 0, KEY_E
), KEY(5, 0, KEY_F
),
512 KEY(0, 1, KEY_G
), KEY(1, 1, KEY_H
), KEY(2, 1, KEY_I
),
513 KEY(3, 1, KEY_J
), KEY(4, 1, KEY_K
), KEY(5, 1, KEY_L
),
514 KEY(0, 2, KEY_M
), KEY(1, 2, KEY_N
), KEY(2, 2, KEY_O
),
515 KEY(3, 2, KEY_P
), KEY(4, 2, KEY_Q
), KEY(5, 2, KEY_R
),
516 KEY(0, 3, KEY_S
), KEY(1, 3, KEY_T
), KEY(2, 3, KEY_U
),
517 KEY(3, 3, KEY_V
), KEY(4, 3, KEY_W
), KEY(5, 3, KEY_X
),
518 KEY(2, 4, KEY_Y
), KEY(3, 4, KEY_Z
),
520 KEY(0, 4, KEY_DOT
), /* . */
521 KEY(1, 4, KEY_CLOSE
), /* @ */
522 KEY(4, 4, KEY_SLASH
),
523 KEY(5, 4, KEY_BACKSLASH
),
525 KEY(1, 5, KEY_LEFTSHIFT
),
526 KEY(2, 5, KEY_SPACE
),
527 KEY(3, 5, KEY_SPACE
),
528 KEY(4, 5, KEY_ENTER
),
529 KEY(5, 5, KEY_BACKSPACE
),
534 KEY(3, 6, KEY_RIGHT
),
535 KEY(4, 6, KEY_SELECT
),
538 struct pxa27x_keypad_platform_data mainstone_keypad_info
= {
539 .matrix_key_rows
= 6,
540 .matrix_key_cols
= 7,
541 .matrix_key_map
= mainstone_matrix_keys
,
542 .matrix_key_map_size
= ARRAY_SIZE(mainstone_matrix_keys
),
545 .rotary0_up_key
= KEY_UP
,
546 .rotary0_down_key
= KEY_DOWN
,
548 .debounce_interval
= 30,
551 static void __init
mainstone_init_keypad(void)
553 pxa_set_keypad_info(&mainstone_keypad_info
);
556 static inline void mainstone_init_keypad(void) {}
559 static void __init
mainstone_init(void)
561 int SW7
= 0; /* FIXME: get from SCR (Mst doc section 3.2.1.1) */
563 pxa2xx_mfp_config(ARRAY_AND_SIZE(mainstone_pin_config
));
565 pxa_set_ffuart_info(NULL
);
566 pxa_set_btuart_info(NULL
);
567 pxa_set_stuart_info(NULL
);
569 mst_flash_data
[0].width
= (__raw_readl(BOOT_DEF
) & 1) ? 2 : 4;
570 mst_flash_data
[1].width
= 4;
572 /* Compensate for SW7 which swaps the flash banks */
573 mst_flash_data
[SW7
].name
= "processor-flash";
574 mst_flash_data
[SW7
^ 1].name
= "mainboard-flash";
576 printk(KERN_NOTICE
"Mainstone configured to boot from %s\n",
577 mst_flash_data
[0].name
);
579 /* system bus arbiter setting
581 * - LCD_wt:DMA_wt:CORE_Wt = 2:3:4
583 ARB_CNTRL
= ARB_CORE_PARK
| 0x234;
585 platform_add_devices(platform_devices
, ARRAY_SIZE(platform_devices
));
587 /* reading Mainstone's "Virtual Configuration Register"
588 might be handy to select LCD type here */
590 mainstone_pxafb_info
.modes
= &toshiba_ltm04c380k_mode
;
592 mainstone_pxafb_info
.modes
= &toshiba_ltm035a776c_mode
;
594 set_pxa_fb_info(&mainstone_pxafb_info
);
595 mainstone_backlight_register();
597 pxa_set_mci_info(&mainstone_mci_platform_data
);
598 pxa_set_ficp_info(&mainstone_ficp_platform_data
);
599 pxa_set_ohci_info(&mainstone_ohci_platform_data
);
600 pxa_set_i2c_info(NULL
);
601 pxa_set_ac97_info(&mst_audio_ops
);
603 mainstone_init_keypad();
607 static struct map_desc mainstone_io_desc
[] __initdata
= {
609 .virtual = MST_FPGA_VIRT
,
610 .pfn
= __phys_to_pfn(MST_FPGA_PHYS
),
611 .length
= 0x00100000,
616 static void __init
mainstone_map_io(void)
619 iotable_init(mainstone_io_desc
, ARRAY_SIZE(mainstone_io_desc
));
621 /* for use I SRAM as framebuffer. */
626 MACHINE_START(MAINSTONE
, "Intel HCDDBBVA0 Development Platform (aka Mainstone)")
627 /* Maintainer: MontaVista Software Inc. */
628 .boot_params
= 0xa0000100, /* BLOB boot parameter setting */
629 .map_io
= mainstone_map_io
,
630 .nr_irqs
= MAINSTONE_NR_IRQS
,
631 .init_irq
= mainstone_init_irq
,
633 .init_machine
= mainstone_init
,