2 * linux/arch/arm/mach-pxa/lubbock.c
4 * Support for the Intel DBPXA250 Development Platform.
6 * Author: Nicolas Pitre
7 * Created: Jun 15, 2001
8 * Copyright: MontaVista Software Inc.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
14 #include <linux/gpio.h>
15 #include <linux/module.h>
16 #include <linux/kernel.h>
17 #include <linux/init.h>
19 #include <linux/platform_device.h>
20 #include <linux/syscore_ops.h>
21 #include <linux/major.h>
23 #include <linux/interrupt.h>
24 #include <linux/mtd/mtd.h>
25 #include <linux/mtd/partitions.h>
26 #include <linux/smc91x.h>
27 #include <linux/slab.h>
28 #include <linux/leds.h>
30 #include <linux/spi/spi.h>
31 #include <linux/spi/ads7846.h>
32 #include <linux/spi/pxa2xx_spi.h>
34 #include <asm/setup.h>
35 #include <asm/memory.h>
36 #include <asm/mach-types.h>
37 #include <mach/hardware.h>
39 #include <asm/sizes.h>
41 #include <asm/mach/arch.h>
42 #include <asm/mach/map.h>
43 #include <asm/mach/irq.h>
44 #include <asm/mach/flash.h>
46 #include <asm/hardware/sa1111.h>
48 #include <mach/pxa25x.h>
49 #include <mach/audio.h>
50 #include <mach/lubbock.h>
52 #include <linux/platform_data/irda-pxaficp.h>
53 #include <linux/platform_data/video-pxafb.h>
54 #include <linux/platform_data/mmc-pxamci.h>
56 #include <mach/smemc.h>
62 static unsigned long lubbock_pin_config
[] __initdata
= {
63 GPIO15_nCS_1
, /* CS1 - Flash */
64 GPIO78_nCS_2
, /* CS2 - Baseboard FGPA */
65 GPIO79_nCS_3
, /* CS3 - SMC ethernet */
66 GPIO80_nCS_4
, /* CS4 - SA1111 */
75 GPIO29_AC97_SDATA_IN_0
,
76 GPIO30_AC97_SDATA_OUT
,
79 /* LCD - 16bpp DSTN */
80 GPIOxx_LCD_DSTN_16BPP
,
108 GPIO1_GPIO
| WAKEUP_ON_EDGE_RISE
,
111 #define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
112 #define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
114 void lubbock_set_hexled(uint32_t value
)
119 void lubbock_set_misc_wr(unsigned int mask
, unsigned int set
)
123 local_irq_save(flags
);
124 LUB_MISC_WR
= (LUB_MISC_WR
& ~mask
) | (set
& mask
);
125 local_irq_restore(flags
);
127 EXPORT_SYMBOL(lubbock_set_misc_wr
);
129 static unsigned long lubbock_irq_enabled
;
131 static void lubbock_mask_irq(struct irq_data
*d
)
133 int lubbock_irq
= (d
->irq
- LUBBOCK_IRQ(0));
134 LUB_IRQ_MASK_EN
= (lubbock_irq_enabled
&= ~(1 << lubbock_irq
));
137 static void lubbock_unmask_irq(struct irq_data
*d
)
139 int lubbock_irq
= (d
->irq
- LUBBOCK_IRQ(0));
140 /* the irq can be acknowledged only if deasserted, so it's done here */
141 LUB_IRQ_SET_CLR
&= ~(1 << lubbock_irq
);
142 LUB_IRQ_MASK_EN
= (lubbock_irq_enabled
|= (1 << lubbock_irq
));
145 static struct irq_chip lubbock_irq_chip
= {
147 .irq_ack
= lubbock_mask_irq
,
148 .irq_mask
= lubbock_mask_irq
,
149 .irq_unmask
= lubbock_unmask_irq
,
152 static void lubbock_irq_handler(unsigned int irq
, struct irq_desc
*desc
)
154 unsigned long pending
= LUB_IRQ_SET_CLR
& lubbock_irq_enabled
;
156 /* clear our parent irq */
157 desc
->irq_data
.chip
->irq_ack(&desc
->irq_data
);
158 if (likely(pending
)) {
159 irq
= LUBBOCK_IRQ(0) + __ffs(pending
);
160 generic_handle_irq(irq
);
162 pending
= LUB_IRQ_SET_CLR
& lubbock_irq_enabled
;
166 static void __init
lubbock_init_irq(void)
172 /* setup extra lubbock irqs */
173 for (irq
= LUBBOCK_IRQ(0); irq
<= LUBBOCK_LAST_IRQ
; irq
++) {
174 irq_set_chip_and_handler(irq
, &lubbock_irq_chip
,
176 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
);
179 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler
);
180 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING
);
185 static void lubbock_irq_resume(void)
187 LUB_IRQ_MASK_EN
= lubbock_irq_enabled
;
190 static struct syscore_ops lubbock_irq_syscore_ops
= {
191 .resume
= lubbock_irq_resume
,
194 static int __init
lubbock_irq_device_init(void)
196 if (machine_is_lubbock()) {
197 register_syscore_ops(&lubbock_irq_syscore_ops
);
203 device_initcall(lubbock_irq_device_init
);
207 static int lubbock_udc_is_connected(void)
209 return (LUB_MISC_RD
& (1 << 9)) == 0;
212 static struct pxa2xx_udc_mach_info udc_info __initdata
= {
213 .udc_is_connected
= lubbock_udc_is_connected
,
214 // no D+ pullup; lubbock can't connect/disconnect in software
217 static struct resource sa1111_resources
[] = {
221 .flags
= IORESOURCE_MEM
,
224 .start
= LUBBOCK_SA1111_IRQ
,
225 .end
= LUBBOCK_SA1111_IRQ
,
226 .flags
= IORESOURCE_IRQ
,
230 static struct sa1111_platform_data sa1111_info
= {
231 .irq_base
= LUBBOCK_SA1111_IRQ_BASE
,
232 .disable_devs
= SA1111_DEVID_SAC
,
235 static struct platform_device sa1111_device
= {
238 .num_resources
= ARRAY_SIZE(sa1111_resources
),
239 .resource
= sa1111_resources
,
241 .platform_data
= &sa1111_info
,
245 /* ADS7846 is connected through SSP ... and if your board has J5 populated,
246 * you can select it to replace the ucb1400 by switching the touchscreen cable
247 * (to J5) and poking board registers (as done below). Else it's only useful
248 * for the temperature sensors.
250 static struct pxa2xx_spi_master pxa_ssp_master_info
= {
254 static int lubbock_ads7846_pendown_state(void)
256 /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
260 static struct ads7846_platform_data ads_info
= {
262 .vref_delay_usecs
= 100, /* internal, no cap */
263 .get_pendown_state
= lubbock_ads7846_pendown_state
,
264 // .x_plate_ohms = 500, /* GUESS! */
265 // .y_plate_ohms = 500, /* GUESS! */
268 static void ads7846_cs(u32 command
)
270 static const unsigned TS_nCS
= 1 << 11;
271 lubbock_set_misc_wr(TS_nCS
, (command
== PXA2XX_CS_ASSERT
) ? 0 : TS_nCS
);
274 static struct pxa2xx_spi_chip ads_hw
= {
277 .cs_control
= ads7846_cs
,
280 static struct spi_board_info spi_board_info
[] __initdata
= { {
281 .modalias
= "ads7846",
282 .platform_data
= &ads_info
,
283 .controller_data
= &ads_hw
,
284 .irq
= LUBBOCK_BB_IRQ
,
285 .max_speed_hz
= 120000 /* max sample rate at 3V */
286 * 26 /* command + data + overhead */,
292 static struct resource smc91x_resources
[] = {
294 .name
= "smc91x-regs",
297 .flags
= IORESOURCE_MEM
,
300 .start
= LUBBOCK_ETH_IRQ
,
301 .end
= LUBBOCK_ETH_IRQ
,
302 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
305 .name
= "smc91x-attrib",
308 .flags
= IORESOURCE_MEM
,
312 static struct smc91x_platdata lubbock_smc91x_info
= {
313 .flags
= SMC91X_USE_16BIT
| SMC91X_NOWAIT
| SMC91X_IO_SHIFT_2
,
316 static struct platform_device smc91x_device
= {
319 .num_resources
= ARRAY_SIZE(smc91x_resources
),
320 .resource
= smc91x_resources
,
322 .platform_data
= &lubbock_smc91x_info
,
326 static struct resource flash_resources
[] = {
330 .flags
= IORESOURCE_MEM
,
334 .end
= 0x04000000 + SZ_64M
- 1,
335 .flags
= IORESOURCE_MEM
,
339 static struct mtd_partition lubbock_partitions
[] = {
341 .name
= "Bootloader",
344 .mask_flags
= MTD_WRITEABLE
/* force read-only */
348 .offset
= 0x00040000,
350 .name
= "Filesystem",
351 .size
= MTDPART_SIZ_FULL
,
356 static struct flash_platform_data lubbock_flash_data
[2] = {
358 .map_name
= "cfi_probe",
359 .parts
= lubbock_partitions
,
360 .nr_parts
= ARRAY_SIZE(lubbock_partitions
),
362 .map_name
= "cfi_probe",
368 static struct platform_device lubbock_flash_device
[2] = {
370 .name
= "pxa2xx-flash",
373 .platform_data
= &lubbock_flash_data
[0],
375 .resource
= &flash_resources
[0],
379 .name
= "pxa2xx-flash",
382 .platform_data
= &lubbock_flash_data
[1],
384 .resource
= &flash_resources
[1],
389 static struct platform_device
*devices
[] __initdata
= {
392 &lubbock_flash_device
[0],
393 &lubbock_flash_device
[1],
396 static struct pxafb_mode_info sharp_lm8v31_mode
= {
407 .sync
= FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
411 static struct pxafb_mach_info sharp_lm8v31
= {
412 .modes
= &sharp_lm8v31_mode
,
416 .lcd_conn
= LCD_COLOR_DSTN_16BPP
| LCD_PCLK_EDGE_FALL
|
417 LCD_AC_BIAS_FREQ(255),
420 #define MMC_POLL_RATE msecs_to_jiffies(1000)
422 static void lubbock_mmc_poll(unsigned long);
423 static irq_handler_t mmc_detect_int
;
425 static struct timer_list mmc_timer
= {
426 .function
= lubbock_mmc_poll
,
429 static void lubbock_mmc_poll(unsigned long data
)
433 /* clear any previous irq state, then ... */
434 local_irq_save(flags
);
435 LUB_IRQ_SET_CLR
&= ~(1 << 0);
436 local_irq_restore(flags
);
438 /* poll until mmc/sd card is removed */
439 if (LUB_IRQ_SET_CLR
& (1 << 0))
440 mod_timer(&mmc_timer
, jiffies
+ MMC_POLL_RATE
);
442 (void) mmc_detect_int(LUBBOCK_SD_IRQ
, (void *)data
);
443 enable_irq(LUBBOCK_SD_IRQ
);
447 static irqreturn_t
lubbock_detect_int(int irq
, void *data
)
449 /* IRQ is level triggered; disable, and poll for removal */
451 mod_timer(&mmc_timer
, jiffies
+ MMC_POLL_RATE
);
453 return mmc_detect_int(irq
, data
);
456 static int lubbock_mci_init(struct device
*dev
,
457 irq_handler_t detect_int
,
460 /* detect card insert/eject */
461 mmc_detect_int
= detect_int
;
462 init_timer(&mmc_timer
);
463 mmc_timer
.data
= (unsigned long) data
;
464 return request_irq(LUBBOCK_SD_IRQ
, lubbock_detect_int
,
465 0, "lubbock-sd-detect", data
);
468 static int lubbock_mci_get_ro(struct device
*dev
)
470 return (LUB_MISC_RD
& (1 << 2)) != 0;
473 static void lubbock_mci_exit(struct device
*dev
, void *data
)
475 free_irq(LUBBOCK_SD_IRQ
, data
);
476 del_timer_sync(&mmc_timer
);
479 static struct pxamci_platform_data lubbock_mci_platform_data
= {
480 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
481 .detect_delay_ms
= 10,
482 .init
= lubbock_mci_init
,
483 .get_ro
= lubbock_mci_get_ro
,
484 .exit
= lubbock_mci_exit
,
485 .gpio_card_detect
= -1,
490 static void lubbock_irda_transceiver_mode(struct device
*dev
, int mode
)
494 local_irq_save(flags
);
495 if (mode
& IR_SIRMODE
) {
496 LUB_MISC_WR
&= ~(1 << 4);
497 } else if (mode
& IR_FIRMODE
) {
498 LUB_MISC_WR
|= 1 << 4;
500 pxa2xx_transceiver_mode(dev
, mode
);
501 local_irq_restore(flags
);
504 static struct pxaficp_platform_data lubbock_ficp_platform_data
= {
506 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
,
507 .transceiver_mode
= lubbock_irda_transceiver_mode
,
510 static void __init
lubbock_init(void)
512 int flashboot
= (LUB_CONF_SWITCHES
& 1);
514 pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config
));
516 pxa_set_ffuart_info(NULL
);
517 pxa_set_btuart_info(NULL
);
518 pxa_set_stuart_info(NULL
);
520 clk_add_alias("SA1111_CLK", NULL
, "GPIO11_CLK", NULL
);
521 pxa_set_udc_info(&udc_info
);
522 pxa_set_fb_info(NULL
, &sharp_lm8v31
);
523 pxa_set_mci_info(&lubbock_mci_platform_data
);
524 pxa_set_ficp_info(&lubbock_ficp_platform_data
);
525 pxa_set_ac97_info(NULL
);
527 lubbock_flash_data
[0].width
= lubbock_flash_data
[1].width
=
528 (__raw_readl(BOOT_DEF
) & 1) ? 2 : 4;
529 /* Compensate for the nROMBT switch which swaps the flash banks */
530 printk(KERN_NOTICE
"Lubbock configured to boot from %s (bank %d)\n",
531 flashboot
?"Flash":"ROM", flashboot
);
533 lubbock_flash_data
[flashboot
^1].name
= "application-flash";
534 lubbock_flash_data
[flashboot
].name
= "boot-rom";
535 (void) platform_add_devices(devices
, ARRAY_SIZE(devices
));
537 pxa2xx_set_spi_info(1, &pxa_ssp_master_info
);
538 spi_register_board_info(spi_board_info
, ARRAY_SIZE(spi_board_info
));
541 static struct map_desc lubbock_io_desc
[] __initdata
= {
543 .virtual = LUBBOCK_FPGA_VIRT
,
544 .pfn
= __phys_to_pfn(LUBBOCK_FPGA_PHYS
),
545 .length
= 0x00100000,
550 static void __init
lubbock_map_io(void)
553 iotable_init(lubbock_io_desc
, ARRAY_SIZE(lubbock_io_desc
));
559 * Driver for the 8 discrete LEDs available for general use:
560 * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
561 * so be sure to not monkey with them here.
564 #if defined(CONFIG_NEW_LEDS) && defined(CONFIG_LEDS_CLASS)
566 struct led_classdev cdev
;
571 * The triggers lines up below will only be used if the
572 * LED triggers are compiled in.
574 static const struct {
578 { "lubbock:D28", "default-on", },
579 { "lubbock:D27", "cpu0", },
580 { "lubbock:D26", "heartbeat" },
588 static void lubbock_led_set(struct led_classdev
*cdev
,
589 enum led_brightness b
)
591 struct lubbock_led
*led
= container_of(cdev
,
592 struct lubbock_led
, cdev
);
593 u32 reg
= LUB_DISC_BLNK_LED
;
600 LUB_DISC_BLNK_LED
= reg
;
603 static enum led_brightness
lubbock_led_get(struct led_classdev
*cdev
)
605 struct lubbock_led
*led
= container_of(cdev
,
606 struct lubbock_led
, cdev
);
607 u32 reg
= LUB_DISC_BLNK_LED
;
609 return (reg
& led
->mask
) ? LED_FULL
: LED_OFF
;
612 static int __init
lubbock_leds_init(void)
616 if (!machine_is_lubbock())
620 LUB_DISC_BLNK_LED
|= 0xff;
621 for (i
= 0; i
< ARRAY_SIZE(lubbock_leds
); i
++) {
622 struct lubbock_led
*led
;
624 led
= kzalloc(sizeof(*led
), GFP_KERNEL
);
628 led
->cdev
.name
= lubbock_leds
[i
].name
;
629 led
->cdev
.brightness_set
= lubbock_led_set
;
630 led
->cdev
.brightness_get
= lubbock_led_get
;
631 led
->cdev
.default_trigger
= lubbock_leds
[i
].trigger
;
634 if (led_classdev_register(NULL
, &led
->cdev
) < 0) {
644 * Since we may have triggers on any subsystem, defer registration
645 * until after subsystem_init.
647 fs_initcall(lubbock_leds_init
);
650 MACHINE_START(LUBBOCK
, "Intel DBPXA250 Development Platform (aka Lubbock)")
651 /* Maintainer: MontaVista Software Inc. */
652 .map_io
= lubbock_map_io
,
653 .nr_irqs
= LUBBOCK_NR_IRQS
,
654 .init_irq
= lubbock_init_irq
,
655 .handle_irq
= pxa25x_handle_irq
,
656 .init_time
= pxa_timer_init
,
657 .init_machine
= lubbock_init
,
658 .restart
= pxa_restart
,