Contributors: 1
Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
Ryder Lee |
491 |
100.00% |
1 |
100.00% |
Total |
491 |
|
1 |
|
// SPDX-License-Identifier: ISC
/* Copyright (C) 2019 MediaTek Inc.
*
* Author: Ryder Lee <ryder.lee@mediatek.com>
* Felix Fietkau <nbd@nbd.name>
*/
#include "mt7615.h"
#include "eeprom.h"
static int mt7615_efuse_read(struct mt7615_dev *dev, u32 base,
u16 addr, u8 *data)
{
u32 val;
int i;
val = mt76_rr(dev, base + MT_EFUSE_CTRL);
val &= ~(MT_EFUSE_CTRL_AIN | MT_EFUSE_CTRL_MODE);
val |= FIELD_PREP(MT_EFUSE_CTRL_AIN, addr & ~0xf);
val |= MT_EFUSE_CTRL_KICK;
mt76_wr(dev, base + MT_EFUSE_CTRL, val);
if (!mt76_poll(dev, base + MT_EFUSE_CTRL, MT_EFUSE_CTRL_KICK, 0, 1000))
return -ETIMEDOUT;
udelay(2);
val = mt76_rr(dev, base + MT_EFUSE_CTRL);
if ((val & MT_EFUSE_CTRL_AOUT) == MT_EFUSE_CTRL_AOUT ||
WARN_ON_ONCE(!(val & MT_EFUSE_CTRL_VALID))) {
memset(data, 0x0, 16);
return 0;
}
for (i = 0; i < 4; i++) {
val = mt76_rr(dev, base + MT_EFUSE_RDATA(i));
put_unaligned_le32(val, data + 4 * i);
}
return 0;
}
static int mt7615_efuse_init(struct mt7615_dev *dev)
{
u32 base = mt7615_reg_map(dev, MT_EFUSE_BASE);
int len = MT7615_EEPROM_SIZE;
int ret, i;
void *buf;
if (mt76_rr(dev, base + MT_EFUSE_BASE_CTRL) & MT_EFUSE_BASE_CTRL_EMPTY)
return -EINVAL;
dev->mt76.otp.data = devm_kzalloc(dev->mt76.dev, len, GFP_KERNEL);
dev->mt76.otp.size = len;
if (!dev->mt76.otp.data)
return -ENOMEM;
buf = dev->mt76.otp.data;
for (i = 0; i + 16 <= len; i += 16) {
ret = mt7615_efuse_read(dev, base, i, buf + i);
if (ret)
return ret;
}
return 0;
}
static int mt7615_eeprom_load(struct mt7615_dev *dev)
{
int ret;
ret = mt76_eeprom_init(&dev->mt76, MT7615_EEPROM_SIZE);
if (ret < 0)
return ret;
return mt7615_efuse_init(dev);
}
int mt7615_eeprom_init(struct mt7615_dev *dev)
{
int ret;
ret = mt7615_eeprom_load(dev);
if (ret < 0)
return ret;
memcpy(dev->mt76.eeprom.data, dev->mt76.otp.data, MT7615_EEPROM_SIZE);
dev->mt76.cap.has_2ghz = true;
dev->mt76.cap.has_5ghz = true;
memcpy(dev->mt76.macaddr, dev->mt76.eeprom.data + MT_EE_MAC_ADDR,
ETH_ALEN);
mt76_eeprom_override(&dev->mt76);
return 0;
}