mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-17 00:33:06 +00:00
44 lines
830 B
C
44 lines
830 B
C
|
// SPDX-License-Identifier: GPL-2.0
|
||
|
|
/*
|
||
|
|
* Copyright 2022 Google LLC
|
||
|
|
*/
|
||
|
|
#include <net.h>
|
||
|
|
#include <dm/device.h>
|
||
|
|
#include <dm/uclass.h>
|
||
|
|
#include <atsha204a-i2c.h>
|
||
|
|
#include "mercury_aa1.h"
|
||
|
|
|
||
|
|
#define MERCURY_AA1_ATSHA204A_OTP_MAC0 4
|
||
|
|
#define MERCURY_AA1_ATSHA204A_OTP_MAC1 5
|
||
|
|
|
||
|
|
int mercury_aa1_read_mac(u8 *mac)
|
||
|
|
{
|
||
|
|
struct udevice *dev;
|
||
|
|
u8 buf[8];
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
ret = uclass_get_device_by_name(UCLASS_MISC, "atsha204a@64", &dev);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = atsha204a_wakeup(dev);
|
||
|
|
if (ret)
|
||
|
|
return ret;
|
||
|
|
|
||
|
|
ret = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
|
||
|
|
MERCURY_AA1_ATSHA204A_OTP_MAC0, buf);
|
||
|
|
if (ret)
|
||
|
|
goto sleep;
|
||
|
|
|
||
|
|
ret = atsha204a_read(dev, ATSHA204A_ZONE_OTP, false,
|
||
|
|
MERCURY_AA1_ATSHA204A_OTP_MAC1, buf + 4);
|
||
|
|
if (ret)
|
||
|
|
goto sleep;
|
||
|
|
|
||
|
|
memcpy(mac, buf, ARP_HLEN);
|
||
|
|
|
||
|
|
sleep:
|
||
|
|
atsha204a_sleep(dev);
|
||
|
|
return ret;
|
||
|
|
}
|