mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-12-17 00:33:06 +00:00
68 lines
1.5 KiB
C
68 lines
1.5 KiB
C
|
// SPDX-License-Identifier: GPL-2.0+
|
||
|
|
/*
|
||
|
|
* Copyright (C) 2021 Vyacheslav Bocharov
|
||
|
|
* Author: Vyacheslav Bocharov <adeep@lexina.in>
|
||
|
|
* Author: Neil Armstrong <narmstrong@baylibre.com>
|
||
|
|
*
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <common.h>
|
||
|
|
#include <dm.h>
|
||
|
|
#include <adc.h>
|
||
|
|
#include <env.h>
|
||
|
|
#include <init.h>
|
||
|
|
#include <net.h>
|
||
|
|
#include <asm/io.h>
|
||
|
|
#include <asm/arch/gx.h>
|
||
|
|
#include <asm/arch/sm.h>
|
||
|
|
#include <asm/arch/eth.h>
|
||
|
|
#include <asm/arch/mem.h>
|
||
|
|
|
||
|
|
#define EFUSE_SN_OFFSET 50
|
||
|
|
#define EFUSE_SN_SIZE 32
|
||
|
|
#define EFUSE_MAC_OFFSET 0
|
||
|
|
#define EFUSE_MAC_SIZE 6
|
||
|
|
#define EFUSE_USID_OFFSET 18
|
||
|
|
#define EFUSE_USID_SIZE 32
|
||
|
|
|
||
|
|
int misc_init_r(void)
|
||
|
|
{
|
||
|
|
u8 mac_addr[EFUSE_MAC_SIZE];
|
||
|
|
char serial[EFUSE_SN_SIZE];
|
||
|
|
char usid[EFUSE_USID_SIZE];
|
||
|
|
ssize_t len;
|
||
|
|
unsigned int adcval;
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (!eth_env_get_enetaddr("ethaddr", mac_addr)) {
|
||
|
|
len = meson_sm_read_efuse(EFUSE_MAC_OFFSET,
|
||
|
|
mac_addr, EFUSE_MAC_SIZE);
|
||
|
|
if (len == EFUSE_MAC_SIZE && is_valid_ethaddr(mac_addr))
|
||
|
|
eth_env_set_enetaddr("ethaddr", mac_addr);
|
||
|
|
else
|
||
|
|
meson_generate_serial_ethaddr();
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!env_get("serial")) {
|
||
|
|
len = meson_sm_read_efuse(EFUSE_SN_OFFSET, serial,
|
||
|
|
EFUSE_SN_SIZE);
|
||
|
|
if (len == EFUSE_SN_SIZE)
|
||
|
|
env_set("serial", serial);
|
||
|
|
}
|
||
|
|
|
||
|
|
if (!env_get("usid")) {
|
||
|
|
len = meson_sm_read_efuse(EFUSE_USID_OFFSET, usid,
|
||
|
|
EFUSE_USID_SIZE);
|
||
|
|
if (len == EFUSE_USID_SIZE)
|
||
|
|
env_set("usid", usid);
|
||
|
|
}
|
||
|
|
|
||
|
|
ret = adc_channel_single_shot("adc@8680", 0, &adcval);
|
||
|
|
if (adcval < 3000)
|
||
|
|
env_set("userbutton", "true");
|
||
|
|
else
|
||
|
|
env_set("userbutton", "false");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|