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/export.h>
11 #include <linux/platform_device.h>
12 #include <linux/mtd/mtd.h>
13 #include <linux/mtd/partitions.h>
14 #include <linux/mtd/physmap.h>
15 #include <linux/spi/spi.h>
16 #include <linux/spi/flash.h>
18 #include <linux/i2c.h>
19 #include <linux/irq.h>
20 #include <linux/interrupt.h>
22 #include <asm/bfin5xx_spi.h>
23 #include <asm/reboot.h>
24 #include <asm/portmux.h>
26 #include <asm/bfin_sdh.h>
27 #include <linux/spi/ad7877.h>
31 * Name the Board for the /proc/cpuinfo
33 const char bfin_board_name
[] = "ADI BF518F-EZBRD";
36 * Driver needs to know address, irq and flag pin.
39 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
40 static struct mtd_partition ezbrd_partitions
[] = {
42 .name
= "bootloader(nor)",
46 .name
= "linux kernel(nor)",
48 .offset
= MTDPART_OFS_APPEND
,
50 .name
= "file system(nor)",
51 .size
= MTDPART_SIZ_FULL
,
52 .offset
= MTDPART_OFS_APPEND
,
56 static struct physmap_flash_data ezbrd_flash_data
= {
58 .parts
= ezbrd_partitions
,
59 .nr_parts
= ARRAY_SIZE(ezbrd_partitions
),
62 static struct resource ezbrd_flash_resource
= {
64 #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
69 .flags
= IORESOURCE_MEM
,
72 static struct platform_device ezbrd_flash_device
= {
73 .name
= "physmap-flash",
76 .platform_data
= &ezbrd_flash_data
,
79 .resource
= &ezbrd_flash_resource
,
83 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
84 static struct platform_device rtc_device
= {
90 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
91 #include <linux/bfin_mac.h>
92 static const unsigned short bfin_mac_peripherals
[] = {
106 static struct bfin_phydev_platform_data bfin_phydev_data
[] = {
108 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
113 .irq
= IRQ_MAC_PHYINT
,
117 static struct bfin_mii_bus_platform_data bfin_mii_bus_data
= {
119 .phydev_data
= bfin_phydev_data
,
120 .phy_mode
= PHY_INTERFACE_MODE_MII
,
121 .mac_peripherals
= bfin_mac_peripherals
,
122 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
123 .phy_mask
= 0xfff7, /* Only probe the port phy connect to the on chip MAC */
129 static struct platform_device bfin_mii_bus
= {
130 .name
= "bfin_mii_bus",
132 .platform_data
= &bfin_mii_bus_data
,
136 static struct platform_device bfin_mac_device
= {
139 .platform_data
= &bfin_mii_bus
,
143 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
144 static struct dsa_chip_data ksz8893m_switch_chip_data
= {
145 .mii_bus
= &bfin_mii_bus
.dev
,
153 static struct dsa_platform_data ksz8893m_switch_data
= {
155 .netdev
= &bfin_mac_device
.dev
,
156 .chip
= &ksz8893m_switch_chip_data
,
159 static struct platform_device ksz8893m_switch_device
= {
163 .dev
.platform_data
= &ksz8893m_switch_data
,
168 #if defined(CONFIG_MTD_M25P80) \
169 || defined(CONFIG_MTD_M25P80_MODULE)
170 static struct mtd_partition bfin_spi_flash_partitions
[] = {
172 .name
= "bootloader(spi)",
175 .mask_flags
= MTD_CAP_ROM
177 .name
= "linux kernel(spi)",
178 .size
= MTDPART_SIZ_FULL
,
179 .offset
= MTDPART_OFS_APPEND
,
183 static struct flash_platform_data bfin_spi_flash_data
= {
185 .parts
= bfin_spi_flash_partitions
,
186 .nr_parts
= ARRAY_SIZE(bfin_spi_flash_partitions
),
190 /* SPI flash chip (m25p64) */
191 static struct bfin5xx_spi_chip spi_flash_chip_info
= {
192 .enable_dma
= 0, /* use dma transfer with this chip*/
196 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
197 static struct bfin5xx_spi_chip mmc_spi_chip_info
= {
202 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
203 static const struct ad7877_platform_data bfin_ad7877_ts_info
= {
205 .vref_delay_usecs
= 50, /* internal, no capacitor */
208 .pressure_max
= 1000,
210 .stopacq_polarity
= 1,
211 .first_conversion_delay
= 3,
212 .acquisition_time
= 1,
214 .pen_down_acc_interval
= 1,
218 static struct spi_board_info bfin_spi_board_info
[] __initdata
= {
219 #if defined(CONFIG_MTD_M25P80) \
220 || defined(CONFIG_MTD_M25P80_MODULE)
222 /* the modalias must be the same as spi device driver name */
223 .modalias
= "m25p80", /* Name of spi_driver for this device */
224 .max_speed_hz
= 25000000, /* max spi clock (SCK) speed in HZ */
225 .bus_num
= 0, /* Framework bus number */
226 .chip_select
= 2, /* On BF518F-EZBRD it's SPI0_SSEL2 */
227 .platform_data
= &bfin_spi_flash_data
,
228 .controller_data
= &spi_flash_chip_info
,
233 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
234 #if defined(CONFIG_NET_DSA_KSZ8893M) \
235 || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
237 .modalias
= "ksz8893m",
238 .max_speed_hz
= 5000000,
241 .platform_data
= NULL
,
247 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
249 .modalias
= "mmc_spi",
250 .max_speed_hz
= 25000000, /* max spi clock (SCK) speed in HZ */
253 .controller_data
= &mmc_spi_chip_info
,
257 #if defined(CONFIG_TOUCHSCREEN_AD7877) || defined(CONFIG_TOUCHSCREEN_AD7877_MODULE)
259 .modalias
= "ad7877",
260 .platform_data
= &bfin_ad7877_ts_info
,
262 .max_speed_hz
= 12500000, /* max spi clock (SCK) speed in HZ */
267 #if defined(CONFIG_SND_SOC_WM8731) || defined(CONFIG_SND_SOC_WM8731_MODULE) \
268 && defined(CONFIG_SND_SOC_WM8731_SPI)
270 .modalias
= "wm8731",
271 .max_speed_hz
= 3125000, /* max spi clock (SCK) speed in HZ */
277 #if defined(CONFIG_SPI_SPIDEV) || defined(CONFIG_SPI_SPIDEV_MODULE)
279 .modalias
= "spidev",
280 .max_speed_hz
= 3125000, /* max spi clock (SCK) speed in HZ */
285 #if defined(CONFIG_FB_BFIN_LQ035Q1) || defined(CONFIG_FB_BFIN_LQ035Q1_MODULE)
287 .modalias
= "bfin-lq035q1-spi",
288 .max_speed_hz
= 20000000, /* max spi clock (SCK) speed in HZ */
291 .mode
= SPI_CPHA
| SPI_CPOL
,
296 /* SPI controller data */
297 #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
299 static struct bfin5xx_spi_master bfin_spi0_info
= {
301 .enable_dma
= 1, /* master has the ability to do dma transfer */
302 .pin_req
= {P_SPI0_SCK
, P_SPI0_MISO
, P_SPI0_MOSI
, 0},
305 static struct resource bfin_spi0_resource
[] = {
307 .start
= SPI0_REGBASE
,
308 .end
= SPI0_REGBASE
+ 0xFF,
309 .flags
= IORESOURCE_MEM
,
314 .flags
= IORESOURCE_DMA
,
319 .flags
= IORESOURCE_IRQ
,
323 static struct platform_device bfin_spi0_device
= {
325 .id
= 0, /* Bus number */
326 .num_resources
= ARRAY_SIZE(bfin_spi0_resource
),
327 .resource
= bfin_spi0_resource
,
329 .platform_data
= &bfin_spi0_info
, /* Passed to driver */
334 static struct bfin5xx_spi_master bfin_spi1_info
= {
336 .enable_dma
= 1, /* master has the ability to do dma transfer */
337 .pin_req
= {P_SPI1_SCK
, P_SPI1_MISO
, P_SPI1_MOSI
, 0},
340 static struct resource bfin_spi1_resource
[] = {
342 .start
= SPI1_REGBASE
,
343 .end
= SPI1_REGBASE
+ 0xFF,
344 .flags
= IORESOURCE_MEM
,
349 .flags
= IORESOURCE_DMA
,
354 .flags
= IORESOURCE_IRQ
,
358 static struct platform_device bfin_spi1_device
= {
360 .id
= 1, /* Bus number */
361 .num_resources
= ARRAY_SIZE(bfin_spi1_resource
),
362 .resource
= bfin_spi1_resource
,
364 .platform_data
= &bfin_spi1_info
, /* Passed to driver */
367 #endif /* spi master and devices */
369 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
370 #ifdef CONFIG_SERIAL_BFIN_UART0
371 static struct resource bfin_uart0_resources
[] = {
375 .flags
= IORESOURCE_MEM
,
378 .start
= IRQ_UART0_TX
,
380 .flags
= IORESOURCE_IRQ
,
383 .start
= IRQ_UART0_RX
,
385 .flags
= IORESOURCE_IRQ
,
388 .start
= IRQ_UART0_ERROR
,
389 .end
= IRQ_UART0_ERROR
,
390 .flags
= IORESOURCE_IRQ
,
393 .start
= CH_UART0_TX
,
395 .flags
= IORESOURCE_DMA
,
398 .start
= CH_UART0_RX
,
400 .flags
= IORESOURCE_DMA
,
404 static unsigned short bfin_uart0_peripherals
[] = {
405 P_UART0_TX
, P_UART0_RX
, 0
408 static struct platform_device bfin_uart0_device
= {
411 .num_resources
= ARRAY_SIZE(bfin_uart0_resources
),
412 .resource
= bfin_uart0_resources
,
414 .platform_data
= &bfin_uart0_peripherals
, /* Passed to driver */
418 #ifdef CONFIG_SERIAL_BFIN_UART1
419 static struct resource bfin_uart1_resources
[] = {
423 .flags
= IORESOURCE_MEM
,
426 .start
= IRQ_UART1_TX
,
428 .flags
= IORESOURCE_IRQ
,
431 .start
= IRQ_UART1_RX
,
433 .flags
= IORESOURCE_IRQ
,
436 .start
= IRQ_UART1_ERROR
,
437 .end
= IRQ_UART1_ERROR
,
438 .flags
= IORESOURCE_IRQ
,
441 .start
= CH_UART1_TX
,
443 .flags
= IORESOURCE_DMA
,
446 .start
= CH_UART1_RX
,
448 .flags
= IORESOURCE_DMA
,
452 static unsigned short bfin_uart1_peripherals
[] = {
453 P_UART1_TX
, P_UART1_RX
, 0
456 static struct platform_device bfin_uart1_device
= {
459 .num_resources
= ARRAY_SIZE(bfin_uart1_resources
),
460 .resource
= bfin_uart1_resources
,
462 .platform_data
= &bfin_uart1_peripherals
, /* Passed to driver */
468 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
469 #ifdef CONFIG_BFIN_SIR0
470 static struct resource bfin_sir0_resources
[] = {
474 .flags
= IORESOURCE_MEM
,
477 .start
= IRQ_UART0_RX
,
478 .end
= IRQ_UART0_RX
+1,
479 .flags
= IORESOURCE_IRQ
,
482 .start
= CH_UART0_RX
,
483 .end
= CH_UART0_RX
+1,
484 .flags
= IORESOURCE_DMA
,
488 static struct platform_device bfin_sir0_device
= {
491 .num_resources
= ARRAY_SIZE(bfin_sir0_resources
),
492 .resource
= bfin_sir0_resources
,
495 #ifdef CONFIG_BFIN_SIR1
496 static struct resource bfin_sir1_resources
[] = {
500 .flags
= IORESOURCE_MEM
,
503 .start
= IRQ_UART1_RX
,
504 .end
= IRQ_UART1_RX
+1,
505 .flags
= IORESOURCE_IRQ
,
508 .start
= CH_UART1_RX
,
509 .end
= CH_UART1_RX
+1,
510 .flags
= IORESOURCE_DMA
,
514 static struct platform_device bfin_sir1_device
= {
517 .num_resources
= ARRAY_SIZE(bfin_sir1_resources
),
518 .resource
= bfin_sir1_resources
,
523 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
524 static struct platform_device bfin_i2s
= {
526 .id
= CONFIG_SND_BF5XX_SPORT_NUM
,
527 /* TODO: add platform data here */
531 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
532 static struct resource bfin_twi0_resource
[] = {
534 .start
= TWI0_REGBASE
,
536 .flags
= IORESOURCE_MEM
,
541 .flags
= IORESOURCE_IRQ
,
545 static struct platform_device i2c_bfin_twi_device
= {
546 .name
= "i2c-bfin-twi",
548 .num_resources
= ARRAY_SIZE(bfin_twi0_resource
),
549 .resource
= bfin_twi0_resource
,
553 static struct i2c_board_info __initdata bfin_i2c_board_info
[] = {
554 #if defined(CONFIG_BFIN_TWI_LCD) || defined(CONFIG_BFIN_TWI_LCD_MODULE)
556 I2C_BOARD_INFO("pcf8574_lcd", 0x22),
559 #if defined(CONFIG_INPUT_PCF8574) || defined(CONFIG_INPUT_PCF8574_MODULE)
561 I2C_BOARD_INFO("pcf8574_keypad", 0x27),
565 #if defined(CONFIG_SND_SOC_SSM2602) || defined(CONFIG_SND_SOC_SSM2602_MODULE)
567 I2C_BOARD_INFO("ssm2602", 0x1b),
572 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
573 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
574 static struct resource bfin_sport0_uart_resources
[] = {
576 .start
= SPORT0_TCR1
,
577 .end
= SPORT0_MRCS3
+4,
578 .flags
= IORESOURCE_MEM
,
581 .start
= IRQ_SPORT0_RX
,
582 .end
= IRQ_SPORT0_RX
+1,
583 .flags
= IORESOURCE_IRQ
,
586 .start
= IRQ_SPORT0_ERROR
,
587 .end
= IRQ_SPORT0_ERROR
,
588 .flags
= IORESOURCE_IRQ
,
592 static unsigned short bfin_sport0_peripherals
[] = {
593 P_SPORT0_TFS
, P_SPORT0_DTPRI
, P_SPORT0_TSCLK
, P_SPORT0_RFS
,
594 P_SPORT0_DRPRI
, P_SPORT0_RSCLK
, 0
597 static struct platform_device bfin_sport0_uart_device
= {
598 .name
= "bfin-sport-uart",
600 .num_resources
= ARRAY_SIZE(bfin_sport0_uart_resources
),
601 .resource
= bfin_sport0_uart_resources
,
603 .platform_data
= &bfin_sport0_peripherals
, /* Passed to driver */
607 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
608 static struct resource bfin_sport1_uart_resources
[] = {
610 .start
= SPORT1_TCR1
,
611 .end
= SPORT1_MRCS3
+4,
612 .flags
= IORESOURCE_MEM
,
615 .start
= IRQ_SPORT1_RX
,
616 .end
= IRQ_SPORT1_RX
+1,
617 .flags
= IORESOURCE_IRQ
,
620 .start
= IRQ_SPORT1_ERROR
,
621 .end
= IRQ_SPORT1_ERROR
,
622 .flags
= IORESOURCE_IRQ
,
626 static unsigned short bfin_sport1_peripherals
[] = {
627 P_SPORT1_TFS
, P_SPORT1_DTPRI
, P_SPORT1_TSCLK
, P_SPORT1_RFS
,
628 P_SPORT1_DRPRI
, P_SPORT1_RSCLK
, 0
631 static struct platform_device bfin_sport1_uart_device
= {
632 .name
= "bfin-sport-uart",
634 .num_resources
= ARRAY_SIZE(bfin_sport1_uart_resources
),
635 .resource
= bfin_sport1_uart_resources
,
637 .platform_data
= &bfin_sport1_peripherals
, /* Passed to driver */
643 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
644 #include <linux/input.h>
645 #include <linux/gpio_keys.h>
647 static struct gpio_keys_button bfin_gpio_keys_table
[] = {
648 {BTN_0
, GPIO_PG0
, 1, "gpio-keys: BTN0"},
649 {BTN_1
, GPIO_PG13
, 1, "gpio-keys: BTN1"},
652 static struct gpio_keys_platform_data bfin_gpio_keys_data
= {
653 .buttons
= bfin_gpio_keys_table
,
654 .nbuttons
= ARRAY_SIZE(bfin_gpio_keys_table
),
657 static struct platform_device bfin_device_gpiokeys
= {
660 .platform_data
= &bfin_gpio_keys_data
,
665 #if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
667 static struct bfin_sd_host bfin_sdh_data
= {
669 .irq_int0
= IRQ_RSI_INT0
,
670 .pin_req
= {P_RSI_DATA0
, P_RSI_DATA1
, P_RSI_DATA2
, P_RSI_DATA3
, P_RSI_CMD
, P_RSI_CLK
, 0},
673 static struct platform_device bf51x_sdh_device
= {
677 .platform_data
= &bfin_sdh_data
,
682 static const unsigned int cclk_vlev_datasheet
[] =
684 VRPAIR(VLEV_100
, 400000000),
685 VRPAIR(VLEV_105
, 426000000),
686 VRPAIR(VLEV_110
, 500000000),
687 VRPAIR(VLEV_115
, 533000000),
688 VRPAIR(VLEV_120
, 600000000),
691 static struct bfin_dpmc_platform_data bfin_dmpc_vreg_data
= {
692 .tuple_tab
= cclk_vlev_datasheet
,
693 .tabsize
= ARRAY_SIZE(cclk_vlev_datasheet
),
694 .vr_settling_time
= 25 /* us */,
697 static struct platform_device bfin_dpmc
= {
700 .platform_data
= &bfin_dmpc_vreg_data
,
704 static struct platform_device
*stamp_devices
[] __initdata
= {
708 #if defined(CONFIG_RTC_DRV_BFIN) || defined(CONFIG_RTC_DRV_BFIN_MODULE)
712 #if defined(CONFIG_BFIN_MAC) || defined(CONFIG_BFIN_MAC_MODULE)
715 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
716 &ksz8893m_switch_device
,
720 #if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
725 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
726 #ifdef CONFIG_SERIAL_BFIN_UART0
729 #ifdef CONFIG_SERIAL_BFIN_UART1
734 #if defined(CONFIG_BFIN_SIR) || defined(CONFIG_BFIN_SIR_MODULE)
735 #ifdef CONFIG_BFIN_SIR0
738 #ifdef CONFIG_BFIN_SIR1
743 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
744 &i2c_bfin_twi_device
,
747 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
751 #if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
752 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
753 &bfin_sport0_uart_device
,
755 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
756 &bfin_sport1_uart_device
,
760 #if defined(CONFIG_KEYBOARD_GPIO) || defined(CONFIG_KEYBOARD_GPIO_MODULE)
761 &bfin_device_gpiokeys
,
764 #if defined(CONFIG_SDH_BFIN) || defined(CONFIG_SDH_BFIN_MODULE)
768 #if defined(CONFIG_MTD_PHYSMAP) || defined(CONFIG_MTD_PHYSMAP_MODULE)
773 static int __init
ezbrd_init(void)
775 printk(KERN_INFO
"%s(): registering device resources\n", __func__
);
776 i2c_register_board_info(0, bfin_i2c_board_info
,
777 ARRAY_SIZE(bfin_i2c_board_info
));
778 platform_add_devices(stamp_devices
, ARRAY_SIZE(stamp_devices
));
779 spi_register_board_info(bfin_spi_board_info
, ARRAY_SIZE(bfin_spi_board_info
));
780 /* setup BF518-EZBRD GPIO pin PG11 to AMS2, PG15 to AMS3. */
781 peripheral_request(P_AMS2
, "ParaFlash");
782 #if !defined(CONFIG_SPI_BFIN5XX) && !defined(CONFIG_SPI_BFIN5XX_MODULE)
783 peripheral_request(P_AMS3
, "ParaFlash");
788 arch_initcall(ezbrd_init
);
790 static struct platform_device
*ezbrd_early_devices
[] __initdata
= {
791 #if defined(CONFIG_SERIAL_BFIN_CONSOLE) || defined(CONFIG_EARLY_PRINTK)
792 #ifdef CONFIG_SERIAL_BFIN_UART0
795 #ifdef CONFIG_SERIAL_BFIN_UART1
800 #if defined(CONFIG_SERIAL_BFIN_SPORT_CONSOLE)
801 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
802 &bfin_sport0_uart_device
,
804 #ifdef CONFIG_SERIAL_BFIN_SPORT1_UART
805 &bfin_sport1_uart_device
,
810 void __init
native_machine_early_platform_add_devices(void)
812 printk(KERN_INFO
"register early platform devices\n");
813 early_platform_add_devices(ezbrd_early_devices
,
814 ARRAY_SIZE(ezbrd_early_devices
));
817 void native_machine_restart(char *cmd
)
819 /* workaround reboot hang when booting from SPI */
820 if ((bfin_read_SYSCR() & 0x7) == 0x3)
821 bfin_reset_boot_spi_cs(P_DEFAULT_BOOT_SPI_CS
);
824 void bfin_get_ether_addr(char *addr
)
826 /* the MAC is stored in OTP memory page 0xDF */
829 u32 (*otp_read
)(u32 page
, u32 flags
, u64
*page_content
) = (void *)0xEF00001A;
831 ret
= otp_read(0xDF, 0x00, &otp_mac
);
833 char *otp_mac_p
= (char *)&otp_mac
;
834 for (ret
= 0; ret
< 6; ++ret
)
835 addr
[ret
] = otp_mac_p
[5 - ret
];
838 EXPORT_SYMBOL(bfin_get_ether_addr
);