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wifi: mt76: mt7915: load efuse data unconditionally

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This allows looking at the data through the 'otp' debugfs file.

Signed-off-by: Felix Fietkau <[email protected]>
This commit is contained in:
Felix Fietkau
2024-08-23 16:33:57 +02:00
parent e6afe9218a
commit 1a6ea9d3f8
3 changed files with 47 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
mt7915/eeprom.c
+40 -22
View File
@@ -115,38 +115,56 @@ out:
return ret;
}
static int mt7915_eeprom_load_efuse(struct mt7915_dev *dev)
{
u32 eeprom_blk_size = MT7915_EEPROM_BLOCK_SIZE;
u16 eeprom_size = mt7915_eeprom_size(dev);
u8 free_block_num;
u32 block_num, i;
u8 *buf;
int ret;
buf = devm_kzalloc(dev->mt76.dev, eeprom_size, GFP_KERNEL);
if (!buf)
return -ENOMEM;
dev->mt76.otp.data = buf;
dev->mt76.otp.size = eeprom_size;
ret = mt7915_mcu_get_eeprom_free_block(dev, &free_block_num);
if (ret < 0)
return ret;
/* read eeprom data from efuse */
block_num = DIV_ROUND_UP(eeprom_size, eeprom_blk_size);
for (i = 0; i < block_num; i++) {
mt7915_mcu_get_eeprom(dev, buf, i * eeprom_blk_size);
buf += eeprom_blk_size;
}
/* efuse info isn't enough */
if (free_block_num >= 29)
return -EINVAL;
if (!dev->flash_mode)
memcpy(dev->mt76.eeprom.data, dev->mt76.otp.data, eeprom_size);
return 0;
}
static int mt7915_eeprom_load(struct mt7915_dev *dev)
{
int ret;
u16 eeprom_size = mt7915_eeprom_size(dev);
int ret;
ret = mt76_eeprom_init(&dev->mt76, eeprom_size);
if (ret < 0)
return ret;
if (ret) {
if (ret)
dev->flash_mode = true;
} else {
u8 free_block_num;
u32 block_num, i;
u32 eeprom_blk_size = MT7915_EEPROM_BLOCK_SIZE;
ret = mt7915_mcu_get_eeprom_free_block(dev, &free_block_num);
if (ret < 0)
return ret;
/* efuse info isn't enough */
if (free_block_num >= 29)
return -EINVAL;
/* read eeprom data from efuse */
block_num = DIV_ROUND_UP(eeprom_size, eeprom_blk_size);
for (i = 0; i < block_num; i++) {
ret = mt7915_mcu_get_eeprom(dev, i * eeprom_blk_size);
if (ret < 0)
return ret;
}
}
mt7915_eeprom_load_efuse(dev);
return mt7915_check_eeprom(dev);
}
mt7915/mcu.c
+6 -5
View File
@@ -2836,7 +2836,7 @@ int mt7915_mcu_set_eeprom(struct mt7915_dev *dev)
&req, sizeof(req), true);
}
int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u32 offset)
int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u8 *buf, u32 offset)
{
struct mt7915_mcu_eeprom_info req = {
.addr = cpu_to_le32(round_down(offset,
@@ -2845,7 +2845,6 @@ int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u32 offset)
struct mt7915_mcu_eeprom_info *res;
struct sk_buff *skb;
int ret;
u8 *buf;
ret = mt76_mcu_send_and_get_msg(&dev->mt76,
MCU_EXT_QUERY(EFUSE_ACCESS),
@@ -2854,11 +2853,13 @@ int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u32 offset)
return ret;
res = (struct mt7915_mcu_eeprom_info *)skb->data;
buf = dev->mt76.eeprom.data + le32_to_cpu(res->addr);
memcpy(buf, res->data, MT7915_EEPROM_BLOCK_SIZE);
if (res->valid)
memcpy(buf, res->data, MT7915_EEPROM_BLOCK_SIZE);
else
ret = -EINVAL;
dev_kfree_skb(skb);
return 0;
return ret;
}
int mt7915_mcu_get_eeprom_free_block(struct mt7915_dev *dev, u8 *block_num)
mt7915/mt7915.h
+1 -1
View File
@@ -472,7 +472,7 @@ int mt7915_mcu_set_fixed_rate_ctrl(struct mt7915_dev *dev,
struct ieee80211_sta *sta,
void *data, u32 field);
int mt7915_mcu_set_eeprom(struct mt7915_dev *dev);
int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u32 offset);
int mt7915_mcu_get_eeprom(struct mt7915_dev *dev, u8 *buf, u32 offset);
int mt7915_mcu_get_eeprom_free_block(struct mt7915_dev *dev, u8 *block_num);
int mt7915_mcu_set_mac(struct mt7915_dev *dev, int band, bool enable,
bool hdr_trans);