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>
21 #include <asm/bfin5xx_spi.h>
22 #include <asm/reboot.h>
23 #include <asm/portmux.h>
25 #include <asm/bfin_sdh.h>
26 #include <linux/spi/ad7877.h>
30 * Name the Board for the /proc/cpuinfo
32 const char bfin_board_name[] = "ADI BF518F-EZBRD";
35 * Driver needs to know address, irq and flag pin.
38 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
39 static struct mtd_partition ezbrd_partitions[] = {
41 .name = "bootloader(nor)",
45 .name = "linux kernel(nor)",
47 .offset = MTDPART_OFS_APPEND,
49 .name = "file system(nor)",
50 .size = MTDPART_SIZ_FULL,
51 .offset = MTDPART_OFS_APPEND,
55 static struct physmap_flash_data ezbrd_flash_data = {
57 .parts = ezbrd_partitions,
58 .nr_parts = ARRAY_SIZE(ezbrd_partitions),
61 static struct resource ezbrd_flash_resource = {
63 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
68 .flags = IORESOURCE_MEM,
71 static struct platform_device ezbrd_flash_device = {
72 .name = "physmap-flash",
75 .platform_data = &ezbrd_flash_data,
78 .resource = &ezbrd_flash_resource,
82 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
83 static struct platform_device rtc_device = {
89 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
90 static struct platform_device bfin_mii_bus = {
91 .name = "bfin_mii_bus",
94 static struct platform_device bfin_mac_device = {
96 .dev.platform_data = &bfin_mii_bus,
99 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
100 static struct dsa_chip_data ksz8893m_switch_chip_data = {
101 .mii_bus = &bfin_mii_bus.dev,
109 static struct dsa_platform_data ksz8893m_switch_data = {
111 .netdev = &bfin_mac_device.dev,
112 .chip = &ksz8893m_switch_chip_data,
115 static struct platform_device ksz8893m_switch_device = {
119 .dev.platform_data = &ksz8893m_switch_data,
124 #if defined(CONFIG_MTD_M25P80) \
125 || defined(CONFIG_MTD_M25P80_MODULE)
126 static struct mtd_partition bfin_spi_flash_partitions[] = {
128 .name = "bootloader(spi)",
131 .mask_flags = MTD_CAP_ROM
133 .name = "linux kernel(spi)",
134 .size = MTDPART_SIZ_FULL,
135 .offset = MTDPART_OFS_APPEND,
139 static struct flash_platform_data bfin_spi_flash_data = {
141 .parts = bfin_spi_flash_partitions,
142 .nr_parts = ARRAY_SIZE(bfin_spi_flash_partitions),
146 /* SPI flash chip (m25p64) */
147 static struct bfin5xx_spi_chip spi_flash_chip_info = {
148 .enable_dma = 0, /* use dma transfer with this chip*/
153 #if defined(CONFIG_BFIN_SPI_ADC) \
154 || defined(CONFIG_BFIN_SPI_ADC_MODULE)
156 static struct bfin5xx_spi_chip spi_adc_chip_info = {
157 .enable_dma = 1, /* use dma transfer with this chip*/
162 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
163 #if defined(CONFIG_NET_DSA_KSZ8893M) \
164 || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
165 /* SPI SWITCH CHIP */
166 static struct bfin5xx_spi_chip spi_switch_info = {
173 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
174 static struct bfin5xx_spi_chip mmc_spi_chip_info = {
180 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
181 static struct bfin5xx_spi_chip spi_ad7877_chip_info = {
186 static const struct ad7877_platform_data bfin_ad7877_ts_info = {
188 .vref_delay_usecs = 50, /* internal, no capacitor */
191 .pressure_max = 1000,
193 .stopacq_polarity = 1,
194 .first_conversion_delay = 3,
195 .acquisition_time = 1,
197 .pen_down_acc_interval = 1,
201 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
202 && defined(CONFIG_SND_SOC_WM8731_SPI)
203 static struct bfin5xx_spi_chip spi_wm8731_chip_info = {
209 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
210 static struct bfin5xx_spi_chip spidev_chip_info = {
216 static struct spi_board_info bfin_spi_board_info[] __initdata = {
217 #if defined(CONFIG_MTD_M25P80) \
218 || defined(CONFIG_MTD_M25P80_MODULE)
220 /* the modalias must be the same as spi device driver name */
221 .modalias = "m25p80", /* Name of spi_driver for this device */
222 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
223 .bus_num = 0, /* Framework bus number */
224 .chip_select = 2, /* On BF518F-EZBRD it's SPI0_SSEL2 */
225 .platform_data = &bfin_spi_flash_data,
226 .controller_data = &spi_flash_chip_info,
231 #if defined(CONFIG_BFIN_SPI_ADC) \
232 || defined(CONFIG_BFIN_SPI_ADC_MODULE)
234 .modalias = "bfin_spi_adc", /* Name of spi_driver for this device */
235 .max_speed_hz = 6250000, /* max spi clock (SCK) speed in HZ */
236 .bus_num = 0, /* Framework bus number */
237 .chip_select = 1, /* Framework chip select. */
238 .platform_data = NULL, /* No spi_driver specific config */
239 .controller_data = &spi_adc_chip_info,
243 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
244 #if defined(CONFIG_NET_DSA_KSZ8893M) \
245 || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
247 .modalias = "ksz8893m",
248 .max_speed_hz = 5000000,
251 .platform_data = NULL,
252 .controller_data = &spi_switch_info,
258 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
260 .modalias = "mmc_spi",
261 .max_speed_hz = 25000000, /* max spi clock (SCK) speed in HZ */
264 .controller_data = &mmc_spi_chip_info,
268 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
270 .modalias = "ad7877",
271 .platform_data = &bfin_ad7877_ts_info,
273 .max_speed_hz = 12500000, /* max spi clock (SCK) speed in HZ */
276 .controller_data = &spi_ad7877_chip_info,
279 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
280 && defined(CONFIG_SND_SOC_WM8731_SPI)
282 .modalias = "wm8731",
283 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
286 .controller_data = &spi_wm8731_chip_info,
290 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
292 .modalias = "spidev",
293 .max_speed_hz = 3125000, /* max spi clock (SCK) speed in HZ */
296 .controller_data = &spidev_chip_info,
299 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
301 .modalias = "bfin-lq035q1-spi",
302 .max_speed_hz = 20000000, /* max spi clock (SCK) speed in HZ */
305 .controller_data = &lq035q1_spi_chip_info,
306 .mode = SPI_CPHA | SPI_CPOL,
311 /* SPI controller data */
312 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
314 static struct bfin5xx_spi_master bfin_spi0_info = {
316 .enable_dma = 1, /* master has the ability to do dma transfer */
317 .pin_req = {P_SPI0_SCK, P_SPI0_MISO, P_SPI0_MOSI, 0},
320 static struct resource bfin_spi0_resource[] = {
322 .start = SPI0_REGBASE,
323 .end = SPI0_REGBASE + 0xFF,
324 .flags = IORESOURCE_MEM,
329 .flags = IORESOURCE_DMA,
334 .flags = IORESOURCE_IRQ,
338 static struct platform_device bfin_spi0_device = {
340 .id = 0, /* Bus number */
341 .num_resources = ARRAY_SIZE(bfin_spi0_resource),
342 .resource = bfin_spi0_resource,
344 .platform_data = &bfin_spi0_info, /* Passed to driver */
349 static struct bfin5xx_spi_master bfin_spi1_info = {
351 .enable_dma = 1, /* master has the ability to do dma transfer */
352 .pin_req = {P_SPI1_SCK, P_SPI1_MISO, P_SPI1_MOSI, 0},
355 static struct resource bfin_spi1_resource[] = {
357 .start = SPI1_REGBASE,
358 .end = SPI1_REGBASE + 0xFF,
359 .flags = IORESOURCE_MEM,
364 .flags = IORESOURCE_DMA,
369 .flags = IORESOURCE_IRQ,
373 static struct platform_device bfin_spi1_device = {
375 .id = 1, /* Bus number */
376 .num_resources = ARRAY_SIZE(bfin_spi1_resource),
377 .resource = bfin_spi1_resource,
379 .platform_data = &bfin_spi1_info, /* Passed to driver */
382 #endif /* spi master and devices */
384 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
385 #ifdef CONFIG_SERIAL_BFIN_UART0
386 static struct resource bfin_uart0_resources[] = {
390 .flags = IORESOURCE_MEM,
393 .start = IRQ_UART0_RX,
394 .end = IRQ_UART0_RX+1,
395 .flags = IORESOURCE_IRQ,
398 .start = IRQ_UART0_ERROR,
399 .end = IRQ_UART0_ERROR,
400 .flags = IORESOURCE_IRQ,
403 .start = CH_UART0_TX,
405 .flags = IORESOURCE_DMA,
408 .start = CH_UART0_RX,
410 .flags = IORESOURCE_DMA,
414 unsigned short bfin_uart0_peripherals[] = {
415 P_UART0_TX, P_UART0_RX, 0
418 static struct platform_device bfin_uart0_device = {
421 .num_resources = ARRAY_SIZE(bfin_uart0_resources),
422 .resource = bfin_uart0_resources,
424 .platform_data = &bfin_uart0_peripherals, /* Passed to driver */
428 #ifdef CONFIG_SERIAL_BFIN_UART1
429 static struct resource bfin_uart1_resources[] = {
433 .flags = IORESOURCE_MEM,
436 .start = IRQ_UART1_RX,
437 .end = IRQ_UART1_RX+1,
438 .flags = IORESOURCE_IRQ,
441 .start = IRQ_UART1_ERROR,
442 .end = IRQ_UART1_ERROR,
443 .flags = IORESOURCE_IRQ,
446 .start = CH_UART1_TX,
448 .flags = IORESOURCE_DMA,
451 .start = CH_UART1_RX,
453 .flags = IORESOURCE_DMA,
457 unsigned short bfin_uart1_peripherals[] = {
458 P_UART1_TX, P_UART1_RX, 0
461 static struct platform_device bfin_uart1_device = {
464 .num_resources = ARRAY_SIZE(bfin_uart1_resources),
465 .resource = bfin_uart1_resources,
467 .platform_data = &bfin_uart1_peripherals, /* Passed to driver */
473 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
474 #ifdef CONFIG_BFIN_SIR0
475 static struct resource bfin_sir0_resources[] = {
479 .flags = IORESOURCE_MEM,
482 .start = IRQ_UART0_RX,
483 .end = IRQ_UART0_RX+1,
484 .flags = IORESOURCE_IRQ,
487 .start = CH_UART0_RX,
488 .end = CH_UART0_RX+1,
489 .flags = IORESOURCE_DMA,
493 static struct platform_device bfin_sir0_device = {
496 .num_resources = ARRAY_SIZE(bfin_sir0_resources),
497 .resource = bfin_sir0_resources,
500 #ifdef CONFIG_BFIN_SIR1
501 static struct resource bfin_sir1_resources[] = {
505 .flags = IORESOURCE_MEM,
508 .start = IRQ_UART1_RX,
509 .end = IRQ_UART1_RX+1,
510 .flags = IORESOURCE_IRQ,
513 .start = CH_UART1_RX,
514 .end = CH_UART1_RX+1,
515 .flags = IORESOURCE_DMA,
519 static struct platform_device bfin_sir1_device = {
522 .num_resources = ARRAY_SIZE(bfin_sir1_resources),
523 .resource = bfin_sir1_resources,
528 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
529 static struct platform_device bfin_i2s = {
531 .id = CONFIG_SND_BF5XX_SPORT_NUM,
532 /* TODO: add platform data here */
536 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
537 static struct resource bfin_twi0_resource[] = {
539 .start = TWI0_REGBASE,
541 .flags = IORESOURCE_MEM,
546 .flags = IORESOURCE_IRQ,
550 static struct platform_device i2c_bfin_twi_device = {
551 .name = "i2c-bfin-twi",
553 .num_resources = ARRAY_SIZE(bfin_twi0_resource),
554 .resource = bfin_twi0_resource,
558 static struct i2c_board_info __initdata bfin_i2c_board_info[] = {
559 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
561 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
564 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
566 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
570 #if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
572 I2C_BOARD_INFO("ssm2602", 0x1b),
577 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
578 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
579 static struct resource bfin_sport0_uart_resources[] = {
581 .start = SPORT0_TCR1,
582 .end = SPORT0_MRCS3+4,
583 .flags = IORESOURCE_MEM,
586 .start = IRQ_SPORT0_RX,
587 .end = IRQ_SPORT0_RX+1,
588 .flags = IORESOURCE_IRQ,
591 .start = IRQ_SPORT0_ERROR,
592 .end = IRQ_SPORT0_ERROR,
593 .flags = IORESOURCE_IRQ,
597 unsigned short bfin_sport0_peripherals[] = {
598 P_SPORT0_TFS, P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_RFS,
599 P_SPORT0_DRPRI, P_SPORT0_RSCLK, P_SPORT0_DRSEC, P_SPORT0_DTSEC, 0
602 static struct platform_device bfin_sport0_uart_device = {
603 .name = "bfin-sport-uart",
605 .num_resources = ARRAY_SIZE(bfin_sport0_uart_resources),
606 .resource = bfin_sport0_uart_resources,
608 .platform_data = &bfin_sport0_peripherals, /* Passed to driver */
612 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
613 static struct resource bfin_sport1_uart_resources[] = {
615 .start = SPORT1_TCR1,
616 .end = SPORT1_MRCS3+4,
617 .flags = IORESOURCE_MEM,
620 .start = IRQ_SPORT1_RX,
621 .end = IRQ_SPORT1_RX+1,
622 .flags = IORESOURCE_IRQ,
625 .start = IRQ_SPORT1_ERROR,
626 .end = IRQ_SPORT1_ERROR,
627 .flags = IORESOURCE_IRQ,
631 unsigned short bfin_sport1_peripherals[] = {
632 P_SPORT1_TFS, P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_RFS,
633 P_SPORT1_DRPRI, P_SPORT1_RSCLK, P_SPORT1_DRSEC, P_SPORT1_DTSEC, 0
636 static struct platform_device bfin_sport1_uart_device = {
637 .name = "bfin-sport-uart",
639 .num_resources = ARRAY_SIZE(bfin_sport1_uart_resources),
640 .resource = bfin_sport1_uart_resources,
642 .platform_data = &bfin_sport1_peripherals, /* Passed to driver */
648 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
649 #include <linux/input.h>
650 #include <linux/gpio_keys.h>
652 static struct gpio_keys_button bfin_gpio_keys_table[] = {
653 {BTN_0, GPIO_PG0, 1, "gpio-keys: BTN0"},
654 {BTN_1, GPIO_PG13, 1, "gpio-keys: BTN1"},
657 static struct gpio_keys_platform_data bfin_gpio_keys_data = {
658 .buttons = bfin_gpio_keys_table,
659 .nbuttons = ARRAY_SIZE(bfin_gpio_keys_table),
662 static struct platform_device bfin_device_gpiokeys = {
665 .platform_data = &bfin_gpio_keys_data,
670 #if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
672 static struct bfin_sd_host bfin_sdh_data = {
674 .irq_int0 = IRQ_RSI_INT0,
675 .pin_req = {P_RSI_DATA0, P_RSI_DATA1, P_RSI_DATA2, P_RSI_DATA3, P_RSI_CMD, P_RSI_CLK, 0},
678 static struct platform_device bf51x_sdh_device = {
682 .platform_data = &bfin_sdh_data,
687 static const unsigned int cclk_vlev_datasheet[] =
689 VRPAIR(VLEV_100, 400000000),
690 VRPAIR(VLEV_105, 426000000),
691 VRPAIR(VLEV_110, 500000000),
692 VRPAIR(VLEV_115, 533000000),
693 VRPAIR(VLEV_120, 600000000),
696 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data = {
697 .tuple_tab = cclk_vlev_datasheet,
698 .tabsize = ARRAY_SIZE(cclk_vlev_datasheet),
699 .vr_settling_time = 25 /* us */,
702 static struct platform_device bfin_dpmc = {
705 .platform_data = &bfin_dmpc_vreg_data,
709 static struct platform_device *stamp_devices[] __initdata = {
713 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
717 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
720 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
721 &ksz8893m_switch_device,
725 #if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
730 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
731 #ifdef CONFIG_SERIAL_BFIN_UART0
734 #ifdef CONFIG_SERIAL_BFIN_UART1
739 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
740 #ifdef CONFIG_BFIN_SIR0
743 #ifdef CONFIG_BFIN_SIR1
748 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
749 &i2c_bfin_twi_device,
752 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
756 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
757 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
758 &bfin_sport0_uart_device,
760 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
761 &bfin_sport1_uart_device,
765 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
766 &bfin_device_gpiokeys,
769 #if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
773 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
778 static int __init ezbrd_init(void)
780 printk(KERN_INFO "%s(): registering device resources\n", __func__);
781 i2c_register_board_info(0, bfin_i2c_board_info,
782 ARRAY_SIZE(bfin_i2c_board_info));
783 platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
784 spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
785 /* setup BF518-EZBRD GPIO pin PG11 to AMS2, PG15 to AMS3. */
786 peripheral_request(P_AMS2, "ParaFlash");
787 #if !defined(CONFIG_SPI_BFIN) && !defined(CONFIG_SPI_BFIN_MODULE)
788 peripheral_request(P_AMS3, "ParaFlash");
793 arch_initcall(ezbrd_init);
795 static struct platform_device *ezbrd_early_devices[] __initdata = {
796 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
797 #ifdef CONFIG_SERIAL_BFIN_UART0
800 #ifdef CONFIG_SERIAL_BFIN_UART1
805 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
806 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
807 &bfin_sport0_uart_device,
809 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
810 &bfin_sport1_uart_device,
815 void __init native_machine_early_platform_add_devices(void)
817 printk(KERN_INFO "register early platform devices\n");
818 early_platform_add_devices(ezbrd_early_devices,
819 ARRAY_SIZE(ezbrd_early_devices));
822 void native_machine_restart(char *cmd)
824 /* workaround reboot hang when booting from SPI */
825 if ((bfin_read_SYSCR() & 0x7) == 0x3)
826 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS);
829 void bfin_get_ether_addr(char *addr)
831 /* the MAC is stored in OTP memory page 0xDF */
834 u32 (*otp_read)(u32 page, u32 flags, u64 *page_content) = (void *)0xEF00001A;
836 ret = otp_read(0xDF, 0x00, &otp_mac);
838 char *otp_mac_p = (char *)&otp_mac;
839 for (ret = 0; ret < 6; ++ret)
840 addr[ret] = otp_mac_p[5 - ret];
843 EXPORT_SYMBOL(bfin_get_ether_addr);