csu3_am335x/board-support/u-boot-2017.01+gitAUTOINC+340fb36f04-g340fb36f04/board/bf527-ezkit/bf527-ezkit.c

/*
 * U-Boot - main board file
 *
 * Copyright (c) 2005-2009 Analog Devices Inc.
 *
 * Licensed under the GPL-2 or later.
 */

#include <common.h>
#include <config.h>
#include <command.h>
#include <net.h>
#include <netdev.h>
#include <asm/blackfin.h>
#include <asm/gpio.h>
#include <asm/mach-common/bits/otp.h>

DECLARE_GLOBAL_DATA_PTR;

int checkboard(void)
{
	printf("Board: ADI BF527 EZ-Kit board\n");
	printf("       Support: http://blackfin.uclinux.org/\n");
	return 0;
}

#ifdef CONFIG_BFIN_MAC
static void board_init_enetaddr(uchar *mac_addr)
{
	/* the MAC is stored in OTP memory page 0xDF */
	uint32_t ret;
	uint64_t otp_mac;

	ret = bfrom_OtpRead(0xDF, OTP_LOWER_HALF, &otp_mac);
	if (!(ret & OTP_MASTER_ERROR)) {
		uchar *otp_mac_p = (uchar *)&otp_mac;

		for (ret = 0; ret < 6; ++ret)
			mac_addr[ret] = otp_mac_p[5 - ret];

		if (is_valid_ethaddr(mac_addr))
			eth_setenv_enetaddr("ethaddr", mac_addr);
	}
}

int board_eth_init(bd_t *bis)
{
	return bfin_EMAC_initialize(bis);
}
#endif

int misc_init_r(void)
{
#ifdef CONFIG_BFIN_MAC
	uchar enetaddr[6];
	if (!eth_getenv_enetaddr("ethaddr", enetaddr))
		board_init_enetaddr(enetaddr);
#endif

	return 0;
}

#ifdef CONFIG_USB_BLACKFIN
void board_musb_init(void)
{
	/*
	 * BF527 EZ-KITs require PG13 to be high for HOST mode
	 */
	gpio_request(GPIO_PG13, "musb-vbus");
	gpio_direction_output(GPIO_PG13, 1);
}
#endif