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>
18 #include <linux/platform_device.h>
19 #include <linux/syscore_ops.h>
20 #include <linux/major.h>
22 #include <linux/interrupt.h>
23 #include <linux/mtd/mtd.h>
24 #include <linux/mtd/partitions.h>
25 #include <linux/smc91x.h>
27 #include <linux/spi/spi.h>
28 #include <linux/spi/ads7846.h>
29 #include <linux/spi/pxa2xx_spi.h>
31 #include <asm/setup.h>
32 #include <asm/memory.h>
33 #include <asm/mach-types.h>
34 #include <mach/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/hardware/sa1111.h>
45 #include <mach/pxa25x.h>
46 #include <mach/audio.h>
47 #include <mach/lubbock.h>
49 #include <mach/irda.h>
50 #include <mach/pxafb.h>
53 #include <mach/smemc.h>
59 static unsigned long lubbock_pin_config
[] __initdata
= {
60 GPIO15_nCS_1
, /* CS1 - Flash */
61 GPIO78_nCS_2
, /* CS2 - Baseboard FGPA */
62 GPIO79_nCS_3
, /* CS3 - SMC ethernet */
63 GPIO80_nCS_4
, /* CS4 - SA1111 */
72 GPIO29_AC97_SDATA_IN_0
,
73 GPIO30_AC97_SDATA_OUT
,
76 /* LCD - 16bpp DSTN */
77 GPIOxx_LCD_DSTN_16BPP
,
102 GPIO1_GPIO
| WAKEUP_ON_EDGE_RISE
,
105 #define LUB_HEXLED __LUB_REG(LUBBOCK_FPGA_PHYS + 0x010)
106 #define LUB_MISC_WR __LUB_REG(LUBBOCK_FPGA_PHYS + 0x080)
108 void lubbock_set_hexled(uint32_t value
)
113 void lubbock_set_misc_wr(unsigned int mask
, unsigned int set
)
117 local_irq_save(flags
);
118 LUB_MISC_WR
= (LUB_MISC_WR
& ~mask
) | (set
& mask
);
119 local_irq_restore(flags
);
121 EXPORT_SYMBOL(lubbock_set_misc_wr
);
123 static unsigned long lubbock_irq_enabled
;
125 static void lubbock_mask_irq(struct irq_data
*d
)
127 int lubbock_irq
= (d
->irq
- LUBBOCK_IRQ(0));
128 LUB_IRQ_MASK_EN
= (lubbock_irq_enabled
&= ~(1 << lubbock_irq
));
131 static void lubbock_unmask_irq(struct irq_data
*d
)
133 int lubbock_irq
= (d
->irq
- LUBBOCK_IRQ(0));
134 /* the irq can be acknowledged only if deasserted, so it's done here */
135 LUB_IRQ_SET_CLR
&= ~(1 << lubbock_irq
);
136 LUB_IRQ_MASK_EN
= (lubbock_irq_enabled
|= (1 << lubbock_irq
));
139 static struct irq_chip lubbock_irq_chip
= {
141 .irq_ack
= lubbock_mask_irq
,
142 .irq_mask
= lubbock_mask_irq
,
143 .irq_unmask
= lubbock_unmask_irq
,
146 static void lubbock_irq_handler(unsigned int irq
, struct irq_desc
*desc
)
148 unsigned long pending
= LUB_IRQ_SET_CLR
& lubbock_irq_enabled
;
150 /* clear our parent irq */
151 desc
->irq_data
.chip
->irq_ack(&desc
->irq_data
);
152 if (likely(pending
)) {
153 irq
= LUBBOCK_IRQ(0) + __ffs(pending
);
154 generic_handle_irq(irq
);
156 pending
= LUB_IRQ_SET_CLR
& lubbock_irq_enabled
;
160 static void __init
lubbock_init_irq(void)
166 /* setup extra lubbock irqs */
167 for (irq
= LUBBOCK_IRQ(0); irq
<= LUBBOCK_LAST_IRQ
; irq
++) {
168 irq_set_chip_and_handler(irq
, &lubbock_irq_chip
,
170 set_irq_flags(irq
, IRQF_VALID
| IRQF_PROBE
);
173 irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler
);
174 irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING
);
179 static void lubbock_irq_resume(void)
181 LUB_IRQ_MASK_EN
= lubbock_irq_enabled
;
184 static struct syscore_ops lubbock_irq_syscore_ops
= {
185 .resume
= lubbock_irq_resume
,
188 static int __init
lubbock_irq_device_init(void)
190 if (machine_is_lubbock()) {
191 register_syscore_ops(&lubbock_irq_syscore_ops
);
197 device_initcall(lubbock_irq_device_init
);
201 static int lubbock_udc_is_connected(void)
203 return (LUB_MISC_RD
& (1 << 9)) == 0;
206 static struct pxa2xx_udc_mach_info udc_info __initdata
= {
207 .udc_is_connected
= lubbock_udc_is_connected
,
208 // no D+ pullup; lubbock can't connect/disconnect in software
211 static struct resource sa1111_resources
[] = {
215 .flags
= IORESOURCE_MEM
,
218 .start
= LUBBOCK_SA1111_IRQ
,
219 .end
= LUBBOCK_SA1111_IRQ
,
220 .flags
= IORESOURCE_IRQ
,
224 static struct sa1111_platform_data sa1111_info
= {
225 .irq_base
= LUBBOCK_SA1111_IRQ_BASE
,
226 .disable_devs
= SA1111_DEVID_SAC
,
229 static struct platform_device sa1111_device
= {
232 .num_resources
= ARRAY_SIZE(sa1111_resources
),
233 .resource
= sa1111_resources
,
235 .platform_data
= &sa1111_info
,
239 /* ADS7846 is connected through SSP ... and if your board has J5 populated,
240 * you can select it to replace the ucb1400 by switching the touchscreen cable
241 * (to J5) and poking board registers (as done below). Else it's only useful
242 * for the temperature sensors.
244 static struct pxa2xx_spi_master pxa_ssp_master_info
= {
248 static int lubbock_ads7846_pendown_state(void)
250 /* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
254 static struct ads7846_platform_data ads_info
= {
256 .vref_delay_usecs
= 100, /* internal, no cap */
257 .get_pendown_state
= lubbock_ads7846_pendown_state
,
258 // .x_plate_ohms = 500, /* GUESS! */
259 // .y_plate_ohms = 500, /* GUESS! */
262 static void ads7846_cs(u32 command
)
264 static const unsigned TS_nCS
= 1 << 11;
265 lubbock_set_misc_wr(TS_nCS
, (command
== PXA2XX_CS_ASSERT
) ? 0 : TS_nCS
);
268 static struct pxa2xx_spi_chip ads_hw
= {
271 .cs_control
= ads7846_cs
,
274 static struct spi_board_info spi_board_info
[] __initdata
= { {
275 .modalias
= "ads7846",
276 .platform_data
= &ads_info
,
277 .controller_data
= &ads_hw
,
278 .irq
= LUBBOCK_BB_IRQ
,
279 .max_speed_hz
= 120000 /* max sample rate at 3V */
280 * 26 /* command + data + overhead */,
286 static struct resource smc91x_resources
[] = {
288 .name
= "smc91x-regs",
291 .flags
= IORESOURCE_MEM
,
294 .start
= LUBBOCK_ETH_IRQ
,
295 .end
= LUBBOCK_ETH_IRQ
,
296 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHEDGE
,
299 .name
= "smc91x-attrib",
302 .flags
= IORESOURCE_MEM
,
306 static struct smc91x_platdata lubbock_smc91x_info
= {
307 .flags
= SMC91X_USE_16BIT
| SMC91X_NOWAIT
| SMC91X_IO_SHIFT_2
,
310 static struct platform_device smc91x_device
= {
313 .num_resources
= ARRAY_SIZE(smc91x_resources
),
314 .resource
= smc91x_resources
,
316 .platform_data
= &lubbock_smc91x_info
,
320 static struct resource flash_resources
[] = {
324 .flags
= IORESOURCE_MEM
,
328 .end
= 0x04000000 + SZ_64M
- 1,
329 .flags
= IORESOURCE_MEM
,
333 static struct mtd_partition lubbock_partitions
[] = {
335 .name
= "Bootloader",
338 .mask_flags
= MTD_WRITEABLE
/* force read-only */
342 .offset
= 0x00040000,
344 .name
= "Filesystem",
345 .size
= MTDPART_SIZ_FULL
,
350 static struct flash_platform_data lubbock_flash_data
[2] = {
352 .map_name
= "cfi_probe",
353 .parts
= lubbock_partitions
,
354 .nr_parts
= ARRAY_SIZE(lubbock_partitions
),
356 .map_name
= "cfi_probe",
362 static struct platform_device lubbock_flash_device
[2] = {
364 .name
= "pxa2xx-flash",
367 .platform_data
= &lubbock_flash_data
[0],
369 .resource
= &flash_resources
[0],
373 .name
= "pxa2xx-flash",
376 .platform_data
= &lubbock_flash_data
[1],
378 .resource
= &flash_resources
[1],
383 static struct platform_device
*devices
[] __initdata
= {
386 &lubbock_flash_device
[0],
387 &lubbock_flash_device
[1],
390 static struct pxafb_mode_info sharp_lm8v31_mode
= {
401 .sync
= FB_SYNC_HOR_HIGH_ACT
| FB_SYNC_VERT_HIGH_ACT
,
405 static struct pxafb_mach_info sharp_lm8v31
= {
406 .modes
= &sharp_lm8v31_mode
,
410 .lcd_conn
= LCD_COLOR_DSTN_16BPP
| LCD_PCLK_EDGE_FALL
|
411 LCD_AC_BIAS_FREQ(255),
414 #define MMC_POLL_RATE msecs_to_jiffies(1000)
416 static void lubbock_mmc_poll(unsigned long);
417 static irq_handler_t mmc_detect_int
;
419 static struct timer_list mmc_timer
= {
420 .function
= lubbock_mmc_poll
,
423 static void lubbock_mmc_poll(unsigned long data
)
427 /* clear any previous irq state, then ... */
428 local_irq_save(flags
);
429 LUB_IRQ_SET_CLR
&= ~(1 << 0);
430 local_irq_restore(flags
);
432 /* poll until mmc/sd card is removed */
433 if (LUB_IRQ_SET_CLR
& (1 << 0))
434 mod_timer(&mmc_timer
, jiffies
+ MMC_POLL_RATE
);
436 (void) mmc_detect_int(LUBBOCK_SD_IRQ
, (void *)data
);
437 enable_irq(LUBBOCK_SD_IRQ
);
441 static irqreturn_t
lubbock_detect_int(int irq
, void *data
)
443 /* IRQ is level triggered; disable, and poll for removal */
445 mod_timer(&mmc_timer
, jiffies
+ MMC_POLL_RATE
);
447 return mmc_detect_int(irq
, data
);
450 static int lubbock_mci_init(struct device
*dev
,
451 irq_handler_t detect_int
,
454 /* detect card insert/eject */
455 mmc_detect_int
= detect_int
;
456 init_timer(&mmc_timer
);
457 mmc_timer
.data
= (unsigned long) data
;
458 return request_irq(LUBBOCK_SD_IRQ
, lubbock_detect_int
,
459 IRQF_SAMPLE_RANDOM
, "lubbock-sd-detect", data
);
462 static int lubbock_mci_get_ro(struct device
*dev
)
464 return (LUB_MISC_RD
& (1 << 2)) != 0;
467 static void lubbock_mci_exit(struct device
*dev
, void *data
)
469 free_irq(LUBBOCK_SD_IRQ
, data
);
470 del_timer_sync(&mmc_timer
);
473 static struct pxamci_platform_data lubbock_mci_platform_data
= {
474 .ocr_mask
= MMC_VDD_32_33
|MMC_VDD_33_34
,
475 .detect_delay_ms
= 10,
476 .init
= lubbock_mci_init
,
477 .get_ro
= lubbock_mci_get_ro
,
478 .exit
= lubbock_mci_exit
,
479 .gpio_card_detect
= -1,
484 static void lubbock_irda_transceiver_mode(struct device
*dev
, int mode
)
488 local_irq_save(flags
);
489 if (mode
& IR_SIRMODE
) {
490 LUB_MISC_WR
&= ~(1 << 4);
491 } else if (mode
& IR_FIRMODE
) {
492 LUB_MISC_WR
|= 1 << 4;
494 pxa2xx_transceiver_mode(dev
, mode
);
495 local_irq_restore(flags
);
498 static struct pxaficp_platform_data lubbock_ficp_platform_data
= {
500 .transceiver_cap
= IR_SIRMODE
| IR_FIRMODE
,
501 .transceiver_mode
= lubbock_irda_transceiver_mode
,
504 static void __init
lubbock_init(void)
506 int flashboot
= (LUB_CONF_SWITCHES
& 1);
508 pxa2xx_mfp_config(ARRAY_AND_SIZE(lubbock_pin_config
));
510 pxa_set_ffuart_info(NULL
);
511 pxa_set_btuart_info(NULL
);
512 pxa_set_stuart_info(NULL
);
514 clk_add_alias("SA1111_CLK", NULL
, "GPIO11_CLK", NULL
);
515 pxa_set_udc_info(&udc_info
);
516 pxa_set_fb_info(NULL
, &sharp_lm8v31
);
517 pxa_set_mci_info(&lubbock_mci_platform_data
);
518 pxa_set_ficp_info(&lubbock_ficp_platform_data
);
519 pxa_set_ac97_info(NULL
);
521 lubbock_flash_data
[0].width
= lubbock_flash_data
[1].width
=
522 (__raw_readl(BOOT_DEF
) & 1) ? 2 : 4;
523 /* Compensate for the nROMBT switch which swaps the flash banks */
524 printk(KERN_NOTICE
"Lubbock configured to boot from %s (bank %d)\n",
525 flashboot
?"Flash":"ROM", flashboot
);
527 lubbock_flash_data
[flashboot
^1].name
= "application-flash";
528 lubbock_flash_data
[flashboot
].name
= "boot-rom";
529 (void) platform_add_devices(devices
, ARRAY_SIZE(devices
));
531 pxa2xx_set_spi_info(1, &pxa_ssp_master_info
);
532 spi_register_board_info(spi_board_info
, ARRAY_SIZE(spi_board_info
));
535 static struct map_desc lubbock_io_desc
[] __initdata
= {
537 .virtual = LUBBOCK_FPGA_VIRT
,
538 .pfn
= __phys_to_pfn(LUBBOCK_FPGA_PHYS
),
539 .length
= 0x00100000,
544 static void __init
lubbock_map_io(void)
547 iotable_init(lubbock_io_desc
, ARRAY_SIZE(lubbock_io_desc
));
552 MACHINE_START(LUBBOCK
, "Intel DBPXA250 Development Platform (aka Lubbock)")
553 /* Maintainer: MontaVista Software Inc. */
554 .map_io
= lubbock_map_io
,
555 .nr_irqs
= LUBBOCK_NR_IRQS
,
556 .init_irq
= lubbock_init_irq
,
557 .handle_irq
= pxa25x_handle_irq
,
559 .init_machine
= lubbock_init
,
560 .restart
= pxa_restart
,