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,
54 .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
59 static struct musb_hdrc_config musb_config = {
66 .gpio_vrsel = GPIO_PG13,
67 /* Some custom boards need to be active low, just set it to "0"
70 .gpio_vrsel_active = 1,
71 .clkin = 24, /* musb CLKIN in MHZ */
74 static struct musb_hdrc_platform_data musb_plat = {
75 #if defined(CONFIG_USB_MUSB_OTG)
77 #elif defined(CONFIG_USB_MUSB_HDRC_HCD)
79 #elif defined(CONFIG_USB_GADGET_MUSB_HDRC)
80 .mode = MUSB_PERIPHERAL,
82 .config = &musb_config,
85 static u64 musb_dmamask = ~(u32)0;
87 static struct platform_device musb_device = {
88 .name = "musb-blackfin",
91 .dma_mask = &musb_dmamask,
92 .coherent_dma_mask = 0xffffffff,
93 .platform_data = &musb_plat,
95 .num_resources = ARRAY_SIZE(musb_resources),
96 .resource = musb_resources,
100 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
101 static struct mtd_partition ezbrd_partitions[] = {
103 .name = "bootloader(nor)",
107 .name = "linux kernel(nor)",
109 .offset = MTDPART_OFS_APPEND,
111 .name = "file system(nor)",
112 .size = MTDPART_SIZ_FULL,
113 .offset = MTDPART_OFS_APPEND,
117 static struct physmap_flash_data ezbrd_flash_data = {
119 .parts = ezbrd_partitions,
120 .nr_parts = ARRAY_SIZE(ezbrd_partitions),
123 static struct resource ezbrd_flash_resource = {
126 .flags = IORESOURCE_MEM,
129 static struct platform_device ezbrd_flash_device = {
130 .name = "physmap-flash",
133 .platform_data = &ezbrd_flash_data,
136 .resource = &ezbrd_flash_resource,
140 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
141 static struct mtd_partition partition_info[] = {
143 .name = "bootloader(nand)",
147 .name = "linux kernel(nand)",
148 .offset = MTDPART_OFS_APPEND,
149 .size = 4 * 1024 * 1024,
152 .name = "file system(nand)",
153 .offset = MTDPART_OFS_APPEND,
154 .size = MTDPART_SIZ_FULL,
158 static struct bf5xx_nand_platform bf5xx_nand_platform = {
159 .data_width = NFC_NWIDTH_8,
160 .partitions = partition_info,
161 .nr_partitions = ARRAY_SIZE(partition_info),
166 static struct resource bf5xx_nand_resources[] = {
169 .end = NFC_DATA_RD + 2,
170 .flags = IORESOURCE_MEM,
175 .flags = IORESOURCE_IRQ,
179 static struct platform_device bf5xx_nand_device = {
180 .name = "bf5xx-nand",
182 .num_resources = ARRAY_SIZE(bf5xx_nand_resources),
183 .resource = bf5xx_nand_resources,
185 .platform_data = &bf5xx_nand_platform,
190 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
191 static struct platform_device rtc_device = {
198 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
199 #include <linux/bfin_mac.h>
200 static const unsigned short bfin_mac_peripherals[] = P_RMII0;
202 static struct bfin_phydev_platform_data bfin_phydev_data[] = {
205 .irq = IRQ_MAC_PHYINT,
209 static struct bfin_mii_bus_platform_data bfin_mii_bus_data = {
211 .phydev_data = bfin_phydev_data,
212 .phy_mode = PHY_INTERFACE_MODE_RMII,
213 .mac_peripherals = bfin_mac_peripherals,
216 static struct platform_device bfin_mii_bus = {
217 .name = "bfin_mii_bus",
219 .platform_data = &bfin_mii_bus_data,
223 static struct platform_device bfin_mac_device = {
226 .platform_data = &bfin_mii_bus,
231 #if defined(CONFIG_MTD_M25P80) \
232 || defined(CONFIG_MTD_M25P80_MODULE)
233 static struct mtd_partition bfin_spi_flash_partitions[] = {
235 .name = "bootloader(spi)",
238 .mask_flags = MTD_CAP_ROM
240 .name = "linux kernel(spi)",
241 .size = MTDPART_SIZ_FULL,
242 .offset = MTDPART_OFS_APPEND,
246 static struct flash_platform_data bfin_spi_flash_data = {
248 .parts = bfin_spi_flash_partitions,
249 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
250 .type = "sst25wf040",
253 /* SPI flash chip (sst25wf040) */
254 static struct bfin5xx_spi_chip spi_flash_chip_info = {
255 .enable_dma = 0, /* 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 = {
265 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
266 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
268 .vref_delay_usecs = 50, /* internal, no capacitor */
271 .pressure_max = 1000,
273 .stopacq_polarity = 1,
274 .first_conversion_delay = 3,
275 .acquisition_time = 1,
277 .pen_down_acc_interval = 1,
281 #if defined(CONFIG_TOUCHSCREEN_AD7879) || defined(CONFIG_TOUCHSCREEN_AD7879_MODULE)
282 #include <linux/spi/ad7879.h>
283 static const struct ad7879_platform_data bfin_ad7879_ts_info = {
284 .model = 7879, /* Model = AD7879 */
285 .x_plate_ohms = 620, /* 620 Ohm from the touch datasheet */
286 .pressure_max = 10000,
288 .first_conversion_delay = 3, /* wait 512us before do a first conversion */
289 .acquisition_time = 1, /* 4us acquisition time per sample */
290 .median = 2, /* do 8 measurements */
291 .averaging = 1, /* take the average of 4 middle samples */
292 .pen_down_acc_interval = 255, /* 9.4 ms */
293 .gpio_export = 1, /* Export GPIO to gpiolib */
294 .gpio_base = -1, /* Dynamic allocation */
298 static struct spi_board_info bfin_spi_board_info[] __initdata = {
299 #if defined(CONFIG_MTD_M25P80) \
300 || defined(CONFIG_MTD_M25P80_MODULE)
302 /* the modalias must be the same as spi device driver name */
303 .modalias = "m25p80", /* Name of spi_driver for this device */
304 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
305 .bus_num = 0, /* Framework bus number */
306 .chip_select = 1, /* Framework chip select. On STAMP537 it is SPISSEL1*/
307 .platform_data = &bfin_spi_flash_data,
308 .controller_data = &spi_flash_chip_info,
313 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
315 .modalias = "mmc_spi",
316 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
319 .controller_data = &mmc_spi_chip_info,
323 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
325 .modalias = "ad7877",
326 .platform_data = &bfin_ad7877_ts_info,
328 .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */
333 #if defined(CONFIG_TOUCHSCREEN_AD7879_SPI) || defined(CONFIG_TOUCHSCREEN_AD7879_SPI_MODULE)
335 .modalias = "ad7879",
336 .platform_data = &bfin_ad7879_ts_info,
338 .max_speed_hz = 5000000, /* max spi clock (SCK) speed in HZ */
341 .mode = SPI_CPHA | SPI_CPOL,
344 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
345 && defined(CONFIG_SND_SOC_WM8731_SPI)
347 .modalias = "wm8731",
348 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
354 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
356 .modalias = "spidev",
357 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
362 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
364 .modalias = "bfin-lq035q1-spi",
365 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
368 .mode = SPI_CPHA | SPI_CPOL,
373 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
374 /* SPI controller data */
375 static struct bfin5xx_spi_master bfin_spi0_info = {
377 .enable_dma = 1, /* master has the ability to do dma transfer */
378 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
382 static struct resource bfin_spi0_resource[] = {
384 .start = SPI0_REGBASE,
385 .end = SPI0_REGBASE + 0xFF,
386 .flags = IORESOURCE_MEM,
391 .flags = IORESOURCE_DMA,
396 .flags = IORESOURCE_IRQ,
400 static struct platform_device bfin_spi0_device = {
402 .id = 0, /* Bus number */
403 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
404 .resource = bfin_spi0_resource,
406 .platform_data = &bfin_spi0_info, /* Passed to driver */
409 #endif /* spi master and devices */
411 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
412 #ifdef CONFIG_SERIAL_BFIN_UART0
413 static struct resource bfin_uart0_resources[] = {
417 .flags = IORESOURCE_MEM,
420 .start = IRQ_UART0_RX,
421 .end = IRQ_UART0_RX+1,
422 .flags = IORESOURCE_IRQ,
425 .start = IRQ_UART0_ERROR,
426 .end = IRQ_UART0_ERROR,
427 .flags = IORESOURCE_IRQ,
430 .start = CH_UART0_TX,
432 .flags = IORESOURCE_DMA,
435 .start = CH_UART0_RX,
437 .flags = IORESOURCE_DMA,
441 static unsigned short bfin_uart0_peripherals[] = {
442 P_UART0_TX, P_UART0_RX, 0
445 static struct platform_device bfin_uart0_device = {
448 .num_resources = ARRAY_SIZE(bfin_uart0_resources),
449 .resource = bfin_uart0_resources,
451 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
455 #ifdef CONFIG_SERIAL_BFIN_UART1
456 static struct resource bfin_uart1_resources[] = {
460 .flags = IORESOURCE_MEM,
463 .start = IRQ_UART1_RX,
464 .end = IRQ_UART1_RX+1,
465 .flags = IORESOURCE_IRQ,
468 .start = IRQ_UART1_ERROR,
469 .end = IRQ_UART1_ERROR,
470 .flags = IORESOURCE_IRQ,
473 .start = CH_UART1_TX,
475 .flags = IORESOURCE_DMA,
478 .start = CH_UART1_RX,
480 .flags = IORESOURCE_DMA,
482 #ifdef CONFIG_BFIN_UART1_CTSRTS
486 .flags = IORESOURCE_IO,
491 .flags = IORESOURCE_IO,
496 static unsigned short bfin_uart1_peripherals[] = {
497 P_UART1_TX, P_UART1_RX, 0
500 static struct platform_device bfin_uart1_device = {
503 .num_resources = ARRAY_SIZE(bfin_uart1_resources),
504 .resource = bfin_uart1_resources,
506 .platform_data = &bfin_uart1_peripherals, /* Passed to driver */
512 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
513 #ifdef CONFIG_BFIN_SIR0
514 static struct resource bfin_sir0_resources[] = {
518 .flags = IORESOURCE_MEM,
521 .start = IRQ_UART0_RX,
522 .end = IRQ_UART0_RX+1,
523 .flags = IORESOURCE_IRQ,
526 .start = CH_UART0_RX,
527 .end = CH_UART0_RX+1,
528 .flags = IORESOURCE_DMA,
532 static struct platform_device bfin_sir0_device = {
535 .num_resources = ARRAY_SIZE(bfin_sir0_resources),
536 .resource = bfin_sir0_resources,
539 #ifdef CONFIG_BFIN_SIR1
540 static struct resource bfin_sir1_resources[] = {
544 .flags = IORESOURCE_MEM,
547 .start = IRQ_UART1_RX,
548 .end = IRQ_UART1_RX+1,
549 .flags = IORESOURCE_IRQ,
552 .start = CH_UART1_RX,
553 .end = CH_UART1_RX+1,
554 .flags = IORESOURCE_DMA,
558 static struct platform_device bfin_sir1_device = {
561 .num_resources = ARRAY_SIZE(bfin_sir1_resources),
562 .resource = bfin_sir1_resources,
567 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
568 static struct resource bfin_twi0_resource[] = {
570 .start = TWI0_REGBASE,
572 .flags = IORESOURCE_MEM,
577 .flags = IORESOURCE_IRQ,
581 static struct platform_device i2c_bfin_twi_device = {
582 .name = "i2c-bfin-twi",
584 .num_resources = ARRAY_SIZE(bfin_twi0_resource),
585 .resource = bfin_twi0_resource,
589 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
590 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
592 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
595 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
597 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
603 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
604 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
605 static struct resource bfin_sport0_uart_resources[] = {
607 .start = SPORT0_TCR1,
608 .end = SPORT0_MRCS3+4,
609 .flags = IORESOURCE_MEM,
612 .start = IRQ_SPORT0_RX,
613 .end = IRQ_SPORT0_RX+1,
614 .flags = IORESOURCE_IRQ,
617 .start = IRQ_SPORT0_ERROR,
618 .end = IRQ_SPORT0_ERROR,
619 .flags = IORESOURCE_IRQ,
623 static unsigned short bfin_sport0_peripherals[] = {
624 P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
625 P_SPORT0_DRPRI, P_SPORT0_RSCLK, 0
628 static struct platform_device bfin_sport0_uart_device = {
629 .name = "bfin-sport-uart",
631 .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
632 .resource = bfin_sport0_uart_resources,
634 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
638 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
639 static struct resource bfin_sport1_uart_resources[] = {
641 .start = SPORT1_TCR1,
642 .end = SPORT1_MRCS3+4,
643 .flags = IORESOURCE_MEM,
646 .start = IRQ_SPORT1_RX,
647 .end = IRQ_SPORT1_RX+1,
648 .flags = IORESOURCE_IRQ,
651 .start = IRQ_SPORT1_ERROR,
652 .end = IRQ_SPORT1_ERROR,
653 .flags = IORESOURCE_IRQ,
657 static unsigned short bfin_sport1_peripherals[] = {
658 P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
659 P_SPORT1_DRPRI, P_SPORT1_RSCLK, 0
662 static struct platform_device bfin_sport1_uart_device = {
663 .name = "bfin-sport-uart",
665 .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
666 .resource = bfin_sport1_uart_resources,
668 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
674 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
675 #include <linux/input.h>
676 #include <linux/gpio_keys.h>
677 #include <linux/export.h>
679 static struct gpio_keys_button bfin_gpio_keys_table[] = {
680 {BTN_0, GPIO_PG0, 1, "gpio-keys: BTN0"},
681 {BTN_1, GPIO_PG13, 1, "gpio-keys: BTN1"},
684 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
685 .buttons = bfin_gpio_keys_table,
686 .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
689 static struct platform_device bfin_device_gpiokeys = {
692 .platform_data = &bfin_gpio_keys_data,
697 static const unsigned int cclk_vlev_datasheet[] =
699 VRPAIR(VLEV_100, 400000000),
700 VRPAIR(VLEV_105, 426000000),
701 VRPAIR(VLEV_110, 500000000),
702 VRPAIR(VLEV_115, 533000000),
703 VRPAIR(VLEV_120, 600000000),
706 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
707 .tuple_tab = cclk_vlev_datasheet,
708 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
709 .vr_settling_time = 25 /* us */,
712 static struct platform_device bfin_dpmc = {
715 .platform_data = &bfin_dmpc_vreg_data,
719 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
720 #include <asm/bfin-lq035q1.h>
722 static struct bfin_lq035q1fb_disp_info bfin_lq035q1_data = {
723 .mode = LQ035_NORM | LQ035_RGB | LQ035_RL | LQ035_TB,
724 .ppi_mode = USE_RGB565_16_BIT_PPI,
726 .gpio_bl = GPIO_PG12,
729 static struct resource bfin_lq035q1_resources[] = {
731 .start = IRQ_PPI_ERROR,
732 .end = IRQ_PPI_ERROR,
733 .flags = IORESOURCE_IRQ,
737 static struct platform_device bfin_lq035q1_device = {
738 .name = "bfin-lq035q1",
740 .num_resources = ARRAY_SIZE(bfin_lq035q1_resources),
741 .resource = bfin_lq035q1_resources,
743 .platform_data = &bfin_lq035q1_data,
748 static struct platform_device *stamp_devices[] __initdata = {
752 #if defined(CONFIG_MTD_NAND_BF5XX) || defined(CONFIG_MTD_NAND_BF5XX_MODULE)
756 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
760 #if defined(CONFIG_USB_MUSB_HDRC) || defined(CONFIG_USB_MUSB_HDRC_MODULE)
764 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
769 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
773 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
774 #ifdef CONFIG_SERIAL_BFIN_UART0
777 #ifdef CONFIG_SERIAL_BFIN_UART1
782 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
783 &bfin_lq035q1_device,
786 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
787 #ifdef CONFIG_BFIN_SIR0
790 #ifdef CONFIG_BFIN_SIR1
795 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
796 &i2c_bfin_twi_device,
799 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
800 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
801 &bfin_sport0_uart_device,
803 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
804 &bfin_sport1_uart_device,
808 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
809 &bfin_device_gpiokeys,
812 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
817 static int __init ezbrd_init(void)
819 printk(KERN_INFO "%s(): registering device resources\n", __func__);
820 i2c_register_board_info(0, bfin_i2c_board_info,
821 ARRAY_SIZE(bfin_i2c_board_info));
822 platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
823 spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
827 arch_initcall(ezbrd_init);
829 static struct platform_device *ezbrd_early_devices[] __initdata = {
830 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
831 #ifdef CONFIG_SERIAL_BFIN_UART0
834 #ifdef CONFIG_SERIAL_BFIN_UART1
839 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
840 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
841 &bfin_sport0_uart_device,
843 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
844 &bfin_sport1_uart_device,
849 void __init native_machine_early_platform_add_devices(void)
851 printk(KERN_INFO "register early platform devices\n");
852 early_platform_add_devices(ezbrd_early_devices,
853 ARRAY_SIZE(ezbrd_early_devices));
856 void native_machine_restart(char *cmd)
858 /* workaround reboot hang when booting from SPI */
859 if ((bfin_read_SYSCR() & 0x7) == 0x3)
860 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
863 void bfin_get_ether_addr(char *addr)
865 /* the MAC is stored in OTP memory page 0xDF */
868 u32 (*otp_read)(u32 page, u32 flags, u64 *page_content) = (void *)0xEF00001A;
870 ret = otp_read(0xDF, 0x00, &otp_mac);
872 char *otp_mac_p = (char *)&otp_mac;
873 for (ret = 0; ret < 6; ++ret)
874 addr[ret] = otp_mac_p[5 - ret];
877 EXPORT_SYMBOL(bfin_get_ether_addr);