2 * File: arch/blackfin/mach-bf527/boards/ezbrd.c
3 * Based on: arch/blackfin/mach-bf537/boards/stamp.c
4 * Author: Aidan Williams <aidan@nicta.com.au>
10 * Copyright 2005 National ICT Australia (NICTA)
11 * Copyright 2004-2008 Analog Devices Inc.
13 * Bugs: Enter bugs at http://blackfin.uclinux.org/
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, see the file COPYING, or write
27 * to the Free Software Foundation, Inc.,
28 * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
31 #include <linux/device.h>
32 #include <linux/platform_device.h>
33 #include <linux/mtd/mtd.h>
34 #include <linux/mtd/partitions.h>
35 #include <linux/mtd/physmap.h>
36 #include <linux/spi/spi.h>
37 #include <linux/spi/flash.h>
39 #include <linux/i2c.h>
40 #include <linux/irq.h>
41 #include <linux/interrupt.h>
42 #include <linux/usb/musb.h>
44 #include <asm/bfin5xx_spi.h>
45 #include <asm/reboot.h>
47 #include <asm/portmux.h>
49 #include <linux/spi/ad7877.h>
52 * Name the Board for the /proc/cpuinfo
54 const char bfin_board_name[] = "ADI BF526-EZBRD";
57 * Driver needs to know address, irq and flag pin.
60 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
61 static struct resource musb_resources[] = {
65 .flags = IORESOURCE_MEM,
67 [1] = { /* general IRQ */
68 .start = IRQ_USB_INT0,
70 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
75 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
79 static struct musb_hdrc_config musb_config = {
86 .gpio_vrsel = GPIO_PG13,
89 static struct musb_hdrc_platform_data musb_plat = {
90 #if defined(CONFIG_USB_MUSB_OTG)
92 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
94 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
95 .mode = MUSB_PERIPHERAL,
97 .config = &musb_config,
100 static u64 musb_dmamask = ~(u32)0;
102 static struct platform_device musb_device = {
106 .dma_mask = &musb_dmamask,
107 .coherent_dma_mask = 0xffffffff,
108 .platform_data = &musb_plat,
110 .num_resources = ARRAY_SIZE(musb_resources),
111 .resource = musb_resources,
115 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
116 static struct mtd_partition ezbrd_partitions[] = {
118 .name = "bootloader(nor)",
122 .name = "linux kernel(nor)",
124 .offset = MTDPART_OFS_APPEND,
126 .name = "file system(nor)",
127 .size = MTDPART_SIZ_FULL,
128 .offset = MTDPART_OFS_APPEND,
132 static struct physmap_flash_data ezbrd_flash_data = {
134 .parts = ezbrd_partitions,
135 .nr_parts = ARRAY_SIZE(ezbrd_partitions),
138 static struct resource ezbrd_flash_resource = {
141 .flags = IORESOURCE_MEM,
144 static struct platform_device ezbrd_flash_device = {
145 .name = "physmap-flash",
148 .platform_data = &ezbrd_flash_data,
151 .resource = &ezbrd_flash_resource,
155 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
156 static struct mtd_partition partition_info[] = {
158 .name = "linux kernel(nand)",
160 .size = 4 * 1024 * 1024,
163 .name = "file system(nand)",
164 .offset = MTDPART_OFS_APPEND,
165 .size = MTDPART_SIZ_FULL,
169 static struct bf5xx_nand_platform bf5xx_nand_platform = {
170 .page_size = NFC_PG_SIZE_256,
171 .data_width = NFC_NWIDTH_8,
172 .partitions = partition_info,
173 .nr_partitions = ARRAY_SIZE(partition_info),
178 static struct resource bf5xx_nand_resources[] = {
181 .end = NFC_DATA_RD + 2,
182 .flags = IORESOURCE_MEM,
187 .flags = IORESOURCE_IRQ,
191 static struct platform_device bf5xx_nand_device = {
192 .name = "bf5xx-nand",
194 .num_resources = ARRAY_SIZE(bf5xx_nand_resources),
195 .resource = bf5xx_nand_resources,
197 .platform_data = &bf5xx_nand_platform,
202 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
203 static struct platform_device rtc_device = {
210 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
211 static struct platform_device bfin_mii_bus = {
212 .name = "bfin_mii_bus",
215 static struct platform_device bfin_mac_device = {
217 .dev.platform_data = &bfin_mii_bus,
221 #if defined(CONFIG_MTD_M25P80) \
222 || defined(CONFIG_MTD_M25P80_MODULE)
223 static struct mtd_partition bfin_spi_flash_partitions[] = {
225 .name = "bootloader(spi)",
228 .mask_flags = MTD_CAP_ROM
230 .name = "linux kernel(spi)",
231 .size = MTDPART_SIZ_FULL,
232 .offset = MTDPART_OFS_APPEND,
236 static struct flash_platform_data bfin_spi_flash_data = {
238 .parts = bfin_spi_flash_partitions,
239 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
240 .type = "sst25wf040",
243 /* SPI flash chip (sst25wf040) */
244 static struct bfin5xx_spi_chip spi_flash_chip_info = {
245 .enable_dma = 0, /* use dma transfer with this chip*/
250 #if defined(CONFIG_BFIN_SPI_ADC) \
251 || defined(CONFIG_BFIN_SPI_ADC_MODULE)
253 static struct bfin5xx_spi_chip spi_adc_chip_info = {
254 .enable_dma = 1, /* use dma transfer with this chip*/
259 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
260 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
266 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
267 static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
272 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
274 .vref_delay_usecs = 50, /* internal, no capacitor */
277 .pressure_max = 1000,
279 .stopacq_polarity = 1,
280 .first_conversion_delay = 3,
281 .acquisition_time = 1,
283 .pen_down_acc_interval = 1,
287 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
288 #include <linux/spi/ad7879.h>
289 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
290 .model = 7879, /* Model = AD7879 */
291 .x_plate_ohms = 620, /* 620 Ohm from the touch datasheet */
292 .pressure_max = 10000,
294 .first_conversion_delay = 3, /* wait 512us before do a first conversion */
295 .acquisition_time = 1, /* 4us acquisition time per sample */
296 .median = 2, /* do 8 measurements */
297 .averaging = 1, /* take the average of 4 middle samples */
298 .pen_down_acc_interval = 255, /* 9.4 ms */
299 .gpio_output = 1, /* configure AUX/VBAT/GPIO as GPIO output */
300 .gpio_default = 1, /* During initialization set GPIO = HIGH */
304 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
305 static struct bfin5xx_spi_chip spi_ad7879_chip_info = {
311 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
312 && defined(CONFIG_SND_SOC_WM8731_SPI)
313 static struct bfin5xx_spi_chip spi_wm8731_chip_info = {
319 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
320 static struct bfin5xx_spi_chip spidev_chip_info = {
326 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
327 static struct bfin5xx_spi_chip lq035q1_spi_chip_info = {
333 static struct spi_board_info bfin_spi_board_info[] __initdata = {
334 #if defined(CONFIG_MTD_M25P80) \
335 || defined(CONFIG_MTD_M25P80_MODULE)
337 /* the modalias must be the same as spi device driver name */
338 .modalias = "m25p80", /* Name of spi_driver for this device */
339 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
340 .bus_num = 0, /* Framework bus number */
341 .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
342 .platform_data = &bfin_spi_flash_data,
343 .controller_data = &spi_flash_chip_info,
348 #if defined(CONFIG_BFIN_SPI_ADC) \
349 || defined(CONFIG_BFIN_SPI_ADC_MODULE)
351 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
352 .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */
353 .bus_num = 0, /* Framework bus number */
354 .chip_select = 1, /* Framework chip select. */
355 .platform_data = NULL, /* No spi_driver specific config */
356 .controller_data = &spi_adc_chip_info,
360 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
362 .modalias = "mmc_spi",
363 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
366 .controller_data = &mmc_spi_chip_info,
370 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
372 .modalias = "ad7877",
373 .platform_data = &bfin_ad7877_ts_info,
375 .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */
378 .controller_data = &spi_ad7877_chip_info,
381 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
383 .modalias = "ad7879",
384 .platform_data = &bfin_ad7879_ts_info,
386 .max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
389 .controller_data = &spi_ad7879_chip_info,
390 .mode = SPI_CPHA | SPI_CPOL,
393 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
394 && defined(CONFIG_SND_SOC_WM8731_SPI)
396 .modalias = "wm8731",
397 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
400 .controller_data = &spi_wm8731_chip_info,
404 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
406 .modalias = "spidev",
407 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
410 .controller_data = &spidev_chip_info,
413 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
415 .modalias = "bfin-lq035q1-spi",
416 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
419 .controller_data = &lq035q1_spi_chip_info,
420 .mode = SPI_CPHA | SPI_CPOL,
425 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
426 /* SPI controller data */
427 static struct bfin5xx_spi_master bfin_spi0_info = {
429 .enable_dma = 1, /* master has the ability to do dma transfer */
430 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
434 static struct resource bfin_spi0_resource[] = {
436 .start = SPI0_REGBASE,
437 .end = SPI0_REGBASE + 0xFF,
438 .flags = IORESOURCE_MEM,
443 .flags = IORESOURCE_DMA,
448 .flags = IORESOURCE_IRQ,
452 static struct platform_device bfin_spi0_device = {
454 .id = 0, /* Bus number */
455 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
456 .resource = bfin_spi0_resource,
458 .platform_data = &bfin_spi0_info, /* Passed to driver */
461 #endif /* spi master and devices */
463 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
464 static struct resource bfin_uart_resources[] = {
465 #ifdef CONFIG_SERIAL_BFIN_UART0
469 .flags = IORESOURCE_MEM,
472 #ifdef CONFIG_SERIAL_BFIN_UART1
476 .flags = IORESOURCE_MEM,
481 static struct platform_device bfin_uart_device = {
484 .num_resources = ARRAY_SIZE(bfin_uart_resources),
485 .resource = bfin_uart_resources,
489 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
490 #ifdef CONFIG_BFIN_SIR0
491 static struct resource bfin_sir0_resources[] = {
495 .flags = IORESOURCE_MEM,
498 .start = IRQ_UART0_RX,
499 .end = IRQ_UART0_RX+1,
500 .flags = IORESOURCE_IRQ,
503 .start = CH_UART0_RX,
504 .end = CH_UART0_RX+1,
505 .flags = IORESOURCE_DMA,
509 static struct platform_device bfin_sir0_device = {
512 .num_resources = ARRAY_SIZE(bfin_sir0_resources),
513 .resource = bfin_sir0_resources,
516 #ifdef CONFIG_BFIN_SIR1
517 static struct resource bfin_sir1_resources[] = {
521 .flags = IORESOURCE_MEM,
524 .start = IRQ_UART1_RX,
525 .end = IRQ_UART1_RX+1,
526 .flags = IORESOURCE_IRQ,
529 .start = CH_UART1_RX,
530 .end = CH_UART1_RX+1,
531 .flags = IORESOURCE_DMA,
535 static struct platform_device bfin_sir1_device = {
538 .num_resources = ARRAY_SIZE(bfin_sir1_resources),
539 .resource = bfin_sir1_resources,
544 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
545 static struct resource bfin_twi0_resource[] = {
547 .start = TWI0_REGBASE,
549 .flags = IORESOURCE_MEM,
554 .flags = IORESOURCE_IRQ,
558 static struct platform_device i2c_bfin_twi_device = {
559 .name = "i2c-bfin-twi",
561 .num_resources = ARRAY_SIZE(bfin_twi0_resource),
562 .resource = bfin_twi0_resource,
566 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
567 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
569 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
572 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
574 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
580 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
581 static struct platform_device bfin_sport0_uart_device = {
582 .name = "bfin-sport-uart",
586 static struct platform_device bfin_sport1_uart_device = {
587 .name = "bfin-sport-uart",
592 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
593 #include <linux/input.h>
594 #include <linux/gpio_keys.h>
596 static struct gpio_keys_button bfin_gpio_keys_table[] = {
597 {BTN_0, GPIO_PG0, 1, "gpio-keys: BTN0"},
598 {BTN_1, GPIO_PG13, 1, "gpio-keys: BTN1"},
601 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
602 .buttons = bfin_gpio_keys_table,
603 .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
606 static struct platform_device bfin_device_gpiokeys = {
609 .platform_data = &bfin_gpio_keys_data,
614 static struct resource bfin_gpios_resources = {
616 .end = MAX_BLACKFIN_GPIOS - 1,
617 .flags = IORESOURCE_IRQ,
620 static struct platform_device bfin_gpios_device = {
621 .name = "simple-gpio",
624 .resource = &bfin_gpios_resources,
627 static const unsigned int cclk_vlev_datasheet[] =
629 VRPAIR(VLEV_100, 400000000),
630 VRPAIR(VLEV_105, 426000000),
631 VRPAIR(VLEV_110, 500000000),
632 VRPAIR(VLEV_115, 533000000),
633 VRPAIR(VLEV_120, 600000000),
636 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
637 .tuple_tab = cclk_vlev_datasheet,
638 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
639 .vr_settling_time = 25 /* us */,
642 static struct platform_device bfin_dpmc = {
645 .platform_data = &bfin_dmpc_vreg_data,
649 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
650 #include <asm/bfin-lq035q1.h>
652 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
653 .mode = LQ035_NORM | LQ035_RGB | LQ035_RL | LQ035_TB,
655 .gpio_bl = GPIO_PG12,
658 static struct resource bfin_lq035q1_resources[] = {
660 .start = IRQ_PPI_ERROR,
661 .end = IRQ_PPI_ERROR,
662 .flags = IORESOURCE_IRQ,
666 static struct platform_device bfin_lq035q1_device = {
667 .name = "bfin-lq035q1",
669 .num_resources = ARRAY_SIZE(bfin_lq035q1_resources),
670 .resource = bfin_lq035q1_resources,
672 .platform_data = &bfin_lq035q1_data,
677 static struct platform_device *stamp_devices[] __initdata = {
681 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
685 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
689 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
693 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
698 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
702 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
706 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
707 &bfin_lq035q1_device,
710 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
711 #ifdef CONFIG_BFIN_SIR0
714 #ifdef CONFIG_BFIN_SIR1
719 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
720 &i2c_bfin_twi_device,
723 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
724 &bfin_sport0_uart_device,
725 &bfin_sport1_uart_device,
728 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
729 &bfin_device_gpiokeys,
732 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
739 static int __init ezbrd_init(void)
741 printk(KERN_INFO "%s(): registering device resources\n", __func__);
742 i2c_register_board_info(0, bfin_i2c_board_info,
743 ARRAY_SIZE(bfin_i2c_board_info));
744 platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
745 spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
749 arch_initcall(ezbrd_init);
751 void native_machine_restart(char *cmd)
753 /* workaround reboot hang when booting from SPI */
754 if ((bfin_read_SYSCR() & 0x7) == 0x3)
755 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
758 void bfin_get_ether_addr(char *addr)
760 /* the MAC is stored in OTP memory page 0xDF */
763 u32 (*otp_read)(u32 page, u32 flags, u64 *page_content) = (void *)0xEF00001A;
765 ret = otp_read(0xDF, 0x00, &otp_mac);
767 char *otp_mac_p = (char *)&otp_mac;
768 for (ret = 0; ret < 6; ++ret)
769 addr[ret] = otp_mac_p[5 - ret];
772 EXPORT_SYMBOL(bfin_get_ether_addr);