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Commit 181afa94 authored by Mike Frysinger's avatar Mike Frysinger Committed by Bryan Wu
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[Blackfin] arch: grab mac address from OTP on BF527-EZKIT 



The bf527-ezkit stores the mac address in OTP,
so grab it from there rather than flash

Signed-off-by: default avatarMike Frysinger <vapier.adi@gmail.com>
Signed-off-by: default avatarBryan Wu <cooloney@kernel.org>
parent 549aaa84

arch/blackfin/mach-bf527/boards/ezkit.c

+11 −6
Original line number Diff line number Diff line
@@ -936,13 +936,18 @@ void native_machine_restart(char *cmd) 
		bfin_gpio_reset_spi0_ssel1();

}



/*

 * Currently the MAC address is saved in Flash by U-Boot

 */

#define FLASH_MAC	0x203f0000

void bfin_get_ether_addr(char *addr)

{

	*(u32 *)(&(addr[0])) = bfin_read32(FLASH_MAC);

	*(u16 *)(&(addr[4])) = bfin_read16(FLASH_MAC + 4);

	/* the MAC is stored in OTP memory page 0xDF */

	u32 ret;

	u64 otp_mac;

	u32 (*otp_read)(u32 page, u32 flags, u64 *page_content) = (void *)0xEF00001A;



	ret = otp_read(0xDF, 0x00, &otp_mac);

	if (!(ret & 0x1)) {

		char *otp_mac_p = (char *)&otp_mac;

		for (ret = 0; ret < 6; ++ret)

			addr[ret] = otp_mac_p[5 - ret];

	}

}

EXPORT_SYMBOL(bfin_get_ether_addr);