2 * Copyright 2004-2009 Analog Devices Inc.
3 * 2005 National ICT Australia (NICTA)
4 * Aidan Williams <aidan@nicta.com.au>
6 * Licensed under the GPL-2 or later.
9 #include <linux/device.h>
10 #include <linux/platform_device.h>
11 #include <linux/mtd/mtd.h>
12 #include <linux/mtd/partitions.h>
13 #include <linux/mtd/physmap.h>
14 #include <linux/spi/spi.h>
15 #include <linux/spi/flash.h>
17 #include <linux/i2c.h>
18 #include <linux/irq.h>
19 #include <linux/interrupt.h>
20 #include <linux/usb/musb.h>
22 #include <asm/bfin5xx_spi.h>
23 #include <asm/reboot.h>
25 #include <asm/portmux.h>
27 #include <linux/spi/ad7877.h>
30 * Name the Board for the /proc/cpuinfo
32 const char bfin_board_name
[] = "ADI BF526-EZBRD";
35 * Driver needs to know address, irq and flag pin.
38 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
39 static struct resource musb_resources
[] = {
43 .flags
= IORESOURCE_MEM
,
45 [1] = { /* general IRQ */
46 .start
= IRQ_USB_INT0
,
48 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHLEVEL
,
53 .flags
= IORESOURCE_IRQ
| IORESOURCE_IRQ_HIGHLEVEL
,
57 static struct musb_hdrc_config musb_config
= {
64 .gpio_vrsel
= GPIO_PG13
,
67 static struct musb_hdrc_platform_data musb_plat
= {
68 #if defined(CONFIG_USB_MUSB_OTG)
70 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
72 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
73 .mode
= MUSB_PERIPHERAL
,
75 .config
= &musb_config
,
78 static u64 musb_dmamask
= ~(u32
)0;
80 static struct platform_device musb_device
= {
84 .dma_mask
= &musb_dmamask
,
85 .coherent_dma_mask
= 0xffffffff,
86 .platform_data
= &musb_plat
,
88 .num_resources
= ARRAY_SIZE(musb_resources
),
89 .resource
= musb_resources
,
93 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
94 static struct mtd_partition ezbrd_partitions
[] = {
96 .name
= "bootloader(nor)",
100 .name
= "linux kernel(nor)",
102 .offset
= MTDPART_OFS_APPEND
,
104 .name
= "file system(nor)",
105 .size
= MTDPART_SIZ_FULL
,
106 .offset
= MTDPART_OFS_APPEND
,
110 static struct physmap_flash_data ezbrd_flash_data
= {
112 .parts
= ezbrd_partitions
,
113 .nr_parts
= ARRAY_SIZE(ezbrd_partitions
),
116 static struct resource ezbrd_flash_resource
= {
119 .flags
= IORESOURCE_MEM
,
122 static struct platform_device ezbrd_flash_device
= {
123 .name
= "physmap-flash",
126 .platform_data
= &ezbrd_flash_data
,
129 .resource
= &ezbrd_flash_resource
,
133 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
134 static struct mtd_partition partition_info
[] = {
136 .name
= "linux kernel(nand)",
138 .size
= 4 * 1024 * 1024,
141 .name
= "file system(nand)",
142 .offset
= MTDPART_OFS_APPEND
,
143 .size
= MTDPART_SIZ_FULL
,
147 static struct bf5xx_nand_platform bf5xx_nand_platform
= {
148 .page_size
= NFC_PG_SIZE_256
,
149 .data_width
= NFC_NWIDTH_8
,
150 .partitions
= partition_info
,
151 .nr_partitions
= ARRAY_SIZE(partition_info
),
156 static struct resource bf5xx_nand_resources
[] = {
159 .end
= NFC_DATA_RD
+ 2,
160 .flags
= IORESOURCE_MEM
,
165 .flags
= IORESOURCE_IRQ
,
169 static struct platform_device bf5xx_nand_device
= {
170 .name
= "bf5xx-nand",
172 .num_resources
= ARRAY_SIZE(bf5xx_nand_resources
),
173 .resource
= bf5xx_nand_resources
,
175 .platform_data
= &bf5xx_nand_platform
,
180 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
181 static struct platform_device rtc_device
= {
188 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
189 static struct platform_device bfin_mii_bus
= {
190 .name
= "bfin_mii_bus",
193 static struct platform_device bfin_mac_device
= {
195 .dev
.platform_data
= &bfin_mii_bus
,
199 #if defined(CONFIG_MTD_M25P80) \
200 || defined(CONFIG_MTD_M25P80_MODULE)
201 static struct mtd_partition bfin_spi_flash_partitions
[] = {
203 .name
= "bootloader(spi)",
206 .mask_flags
= MTD_CAP_ROM
208 .name
= "linux kernel(spi)",
209 .size
= MTDPART_SIZ_FULL
,
210 .offset
= MTDPART_OFS_APPEND
,
214 static struct flash_platform_data bfin_spi_flash_data
= {
216 .parts
= bfin_spi_flash_partitions
,
217 .nr_parts
= ARRAY_SIZE(bfin_spi_flash_partitions
),
218 .type
= "sst25wf040",
221 /* SPI flash chip (sst25wf040) */
222 static struct bfin5xx_spi_chip spi_flash_chip_info
= {
223 .enable_dma
= 0, /* use dma transfer with this chip*/
228 #if defined(CONFIG_BFIN_SPI_ADC) \
229 || defined(CONFIG_BFIN_SPI_ADC_MODULE)
231 static struct bfin5xx_spi_chip spi_adc_chip_info
= {
232 .enable_dma
= 1, /* use dma transfer with this chip*/
237 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
238 static struct bfin5xx_spi_chip mmc_spi_chip_info
= {
244 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
245 static struct bfin5xx_spi_chip spi_ad7877_chip_info
= {
250 static const struct ad7877_platform_data bfin_ad7877_ts_info
= {
252 .vref_delay_usecs
= 50, /* internal, no capacitor */
255 .pressure_max
= 1000,
257 .stopacq_polarity
= 1,
258 .first_conversion_delay
= 3,
259 .acquisition_time
= 1,
261 .pen_down_acc_interval
= 1,
265 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
266 #include <linux/spi/ad7879.h>
267 static const struct ad7879_platform_data bfin_ad7879_ts_info
= {
268 .model
= 7879, /* Model = AD7879 */
269 .x_plate_ohms
= 620, /* 620 Ohm from the touch datasheet */
270 .pressure_max
= 10000,
272 .first_conversion_delay
= 3, /* wait 512us before do a first conversion */
273 .acquisition_time
= 1, /* 4us acquisition time per sample */
274 .median
= 2, /* do 8 measurements */
275 .averaging
= 1, /* take the average of 4 middle samples */
276 .pen_down_acc_interval
= 255, /* 9.4 ms */
277 .gpio_output
= 1, /* configure AUX/VBAT/GPIO as GPIO output */
278 .gpio_default
= 1, /* During initialization set GPIO = HIGH */
282 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
283 static struct bfin5xx_spi_chip spi_ad7879_chip_info
= {
289 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
290 && defined(CONFIG_SND_SOC_WM8731_SPI)
291 static struct bfin5xx_spi_chip spi_wm8731_chip_info
= {
297 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
298 static struct bfin5xx_spi_chip spidev_chip_info
= {
304 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
305 static struct bfin5xx_spi_chip lq035q1_spi_chip_info
= {
311 static struct spi_board_info bfin_spi_board_info
[] __initdata
= {
312 #if defined(CONFIG_MTD_M25P80) \
313 || defined(CONFIG_MTD_M25P80_MODULE)
315 /* the modalias must be the same as spi device driver name */
316 .modalias
= "m25p80", /* Name of spi_driver for this device */
317 .max_speed_hz
= 25000000, /* max spi clock (SCK) speed in HZ */
318 .bus_num
= 0, /* Framework bus number */
319 .chip_select
= 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
320 .platform_data
= &bfin_spi_flash_data
,
321 .controller_data
= &spi_flash_chip_info
,
326 #if defined(CONFIG_BFIN_SPI_ADC) \
327 || defined(CONFIG_BFIN_SPI_ADC_MODULE)
329 .modalias
= "bfin_spi_adc", /* Name of spi_driver for this device */
330 .max_speed_hz
= 6250000, /* max spi clock (SCK) speed in HZ */
331 .bus_num
= 0, /* Framework bus number */
332 .chip_select
= 1, /* Framework chip select. */
333 .platform_data
= NULL
, /* No spi_driver specific config */
334 .controller_data
= &spi_adc_chip_info
,
338 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
340 .modalias
= "mmc_spi",
341 .max_speed_hz
= 25000000, /* max spi clock (SCK) speed in HZ */
344 .controller_data
= &mmc_spi_chip_info
,
348 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
350 .modalias
= "ad7877",
351 .platform_data
= &bfin_ad7877_ts_info
,
353 .max_speed_hz
= 12500000, /* max spi clock (SCK) speed in HZ */
356 .controller_data
= &spi_ad7877_chip_info
,
359 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
361 .modalias
= "ad7879",
362 .platform_data
= &bfin_ad7879_ts_info
,
364 .max_speed_hz
= 5000000, /* max spi clock (SCK) speed in HZ */
367 .controller_data
= &spi_ad7879_chip_info
,
368 .mode
= SPI_CPHA
| SPI_CPOL
,
371 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
372 && defined(CONFIG_SND_SOC_WM8731_SPI)
374 .modalias
= "wm8731",
375 .max_speed_hz
= 3125000, /* max spi clock (SCK) speed in HZ */
378 .controller_data
= &spi_wm8731_chip_info
,
382 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
384 .modalias
= "spidev",
385 .max_speed_hz
= 3125000, /* max spi clock (SCK) speed in HZ */
388 .controller_data
= &spidev_chip_info
,
391 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
393 .modalias
= "bfin-lq035q1-spi",
394 .max_speed_hz
= 20000000, /* max spi clock (SCK) speed in HZ */
397 .controller_data
= &lq035q1_spi_chip_info
,
398 .mode
= SPI_CPHA
| SPI_CPOL
,
403 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
404 /* SPI controller data */
405 static struct bfin5xx_spi_master bfin_spi0_info
= {
407 .enable_dma
= 1, /* master has the ability to do dma transfer */
408 .pin_req
= {P_SPI0_SCK
, P_SPI0_MISO
, P_SPI0_MOSI
, 0},
412 static struct resource bfin_spi0_resource
[] = {
414 .start
= SPI0_REGBASE
,
415 .end
= SPI0_REGBASE
+ 0xFF,
416 .flags
= IORESOURCE_MEM
,
421 .flags
= IORESOURCE_DMA
,
426 .flags
= IORESOURCE_IRQ
,
430 static struct platform_device bfin_spi0_device
= {
432 .id
= 0, /* Bus number */
433 .num_resources
= ARRAY_SIZE(bfin_spi0_resource
),
434 .resource
= bfin_spi0_resource
,
436 .platform_data
= &bfin_spi0_info
, /* Passed to driver */
439 #endif /* spi master and devices */
441 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
442 static struct resource bfin_uart_resources
[] = {
443 #ifdef CONFIG_SERIAL_BFIN_UART0
447 .flags
= IORESOURCE_MEM
,
450 #ifdef CONFIG_SERIAL_BFIN_UART1
454 .flags
= IORESOURCE_MEM
,
459 static struct platform_device bfin_uart_device
= {
462 .num_resources
= ARRAY_SIZE(bfin_uart_resources
),
463 .resource
= bfin_uart_resources
,
467 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
468 #ifdef CONFIG_BFIN_SIR0
469 static struct resource bfin_sir0_resources
[] = {
473 .flags
= IORESOURCE_MEM
,
476 .start
= IRQ_UART0_RX
,
477 .end
= IRQ_UART0_RX
+1,
478 .flags
= IORESOURCE_IRQ
,
481 .start
= CH_UART0_RX
,
482 .end
= CH_UART0_RX
+1,
483 .flags
= IORESOURCE_DMA
,
487 static struct platform_device bfin_sir0_device
= {
490 .num_resources
= ARRAY_SIZE(bfin_sir0_resources
),
491 .resource
= bfin_sir0_resources
,
494 #ifdef CONFIG_BFIN_SIR1
495 static struct resource bfin_sir1_resources
[] = {
499 .flags
= IORESOURCE_MEM
,
502 .start
= IRQ_UART1_RX
,
503 .end
= IRQ_UART1_RX
+1,
504 .flags
= IORESOURCE_IRQ
,
507 .start
= CH_UART1_RX
,
508 .end
= CH_UART1_RX
+1,
509 .flags
= IORESOURCE_DMA
,
513 static struct platform_device bfin_sir1_device
= {
516 .num_resources
= ARRAY_SIZE(bfin_sir1_resources
),
517 .resource
= bfin_sir1_resources
,
522 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
523 static struct resource bfin_twi0_resource
[] = {
525 .start
= TWI0_REGBASE
,
527 .flags
= IORESOURCE_MEM
,
532 .flags
= IORESOURCE_IRQ
,
536 static struct platform_device i2c_bfin_twi_device
= {
537 .name
= "i2c-bfin-twi",
539 .num_resources
= ARRAY_SIZE(bfin_twi0_resource
),
540 .resource
= bfin_twi0_resource
,
544 static struct i2c_board_info __initdata bfin_i2c_board_info
[] = {
545 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
547 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
550 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
552 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
558 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
559 static struct platform_device bfin_sport0_uart_device
= {
560 .name
= "bfin-sport-uart",
564 static struct platform_device bfin_sport1_uart_device
= {
565 .name
= "bfin-sport-uart",
570 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
571 #include <linux/input.h>
572 #include <linux/gpio_keys.h>
574 static struct gpio_keys_button bfin_gpio_keys_table
[] = {
575 {BTN_0
, GPIO_PG0
, 1, "gpio-keys: BTN0"},
576 {BTN_1
, GPIO_PG13
, 1, "gpio-keys: BTN1"},
579 static struct gpio_keys_platform_data bfin_gpio_keys_data
= {
580 .buttons
= bfin_gpio_keys_table
,
581 .nbuttons
= ARRAY_SIZE(bfin_gpio_keys_table
),
584 static struct platform_device bfin_device_gpiokeys
= {
587 .platform_data
= &bfin_gpio_keys_data
,
592 static const unsigned int cclk_vlev_datasheet
[] =
594 VRPAIR(VLEV_100
, 400000000),
595 VRPAIR(VLEV_105
, 426000000),
596 VRPAIR(VLEV_110
, 500000000),
597 VRPAIR(VLEV_115
, 533000000),
598 VRPAIR(VLEV_120
, 600000000),
601 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data
= {
602 .tuple_tab
= cclk_vlev_datasheet
,
603 .tabsize
= ARRAY_SIZE(cclk_vlev_datasheet
),
604 .vr_settling_time
= 25 /* us */,
607 static struct platform_device bfin_dpmc
= {
610 .platform_data
= &bfin_dmpc_vreg_data
,
614 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
615 #include <asm/bfin-lq035q1.h>
617 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data
= {
618 .mode
= LQ035_NORM
| LQ035_RGB
| LQ035_RL
| LQ035_TB
,
620 .gpio_bl
= GPIO_PG12
,
623 static struct resource bfin_lq035q1_resources
[] = {
625 .start
= IRQ_PPI_ERROR
,
626 .end
= IRQ_PPI_ERROR
,
627 .flags
= IORESOURCE_IRQ
,
631 static struct platform_device bfin_lq035q1_device
= {
632 .name
= "bfin-lq035q1",
634 .num_resources
= ARRAY_SIZE(bfin_lq035q1_resources
),
635 .resource
= bfin_lq035q1_resources
,
637 .platform_data
= &bfin_lq035q1_data
,
642 static struct platform_device
*stamp_devices
[] __initdata
= {
646 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
650 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
654 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
658 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
663 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
667 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
671 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
672 &bfin_lq035q1_device
,
675 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
676 #ifdef CONFIG_BFIN_SIR0
679 #ifdef CONFIG_BFIN_SIR1
684 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
685 &i2c_bfin_twi_device
,
688 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
689 &bfin_sport0_uart_device
,
690 &bfin_sport1_uart_device
,
693 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
694 &bfin_device_gpiokeys
,
697 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
702 static int __init
ezbrd_init(void)
704 printk(KERN_INFO
"%s(): registering device resources\n", __func__
);
705 i2c_register_board_info(0, bfin_i2c_board_info
,
706 ARRAY_SIZE(bfin_i2c_board_info
));
707 platform_add_devices(stamp_devices
, ARRAY_SIZE(stamp_devices
));
708 spi_register_board_info(bfin_spi_board_info
, ARRAY_SIZE(bfin_spi_board_info
));
712 arch_initcall(ezbrd_init
);
714 void native_machine_restart(char *cmd
)
716 /* workaround reboot hang when booting from SPI */
717 if ((bfin_read_SYSCR() & 0x7) == 0x3)
718 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS
);
721 void bfin_get_ether_addr(char *addr
)
723 /* the MAC is stored in OTP memory page 0xDF */
726 u32 (*otp_read
)(u32 page
, u32 flags
, u64
*page_content
) = (void *)0xEF00001A;
728 ret
= otp_read(0xDF, 0x00, &otp_mac
);
730 char *otp_mac_p
= (char *)&otp_mac
;
731 for (ret
= 0; ret
< 6; ++ret
)
732 addr
[ret
] = otp_mac_p
[5 - ret
];
735 EXPORT_SYMBOL(bfin_get_ether_addr
);