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mt76x0: correct RF access via RF_CSR register.
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PCIe version don't use MCU for RF registers access. We need
to correct RF CSR method to support up to 127 RF registers.

Signed-off-by: Stanislaw Gruszka <[email protected]>
Signed-off-by: Felix Fietkau <[email protected]>
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Stanislaw Gruszka authored and nbd168 committed Oct 8, 2018
1 parent c50dca8 commit ddc9e05
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Showing 2 changed files with 4 additions and 6 deletions.
6 changes: 2 additions & 4 deletions mt76x0/phy.c
Original file line number Diff line number Diff line change
Expand Up @@ -37,7 +37,7 @@ mt76x0_rf_csr_wr(struct mt76x02_dev *dev, u32 offset, u8 value)
bank = MT_RF_BANK(offset);
reg = MT_RF_REG(offset);

if (WARN_ON_ONCE(reg > 64) || WARN_ON_ONCE(bank) > 8)
if (WARN_ON_ONCE(reg > 127) || WARN_ON_ONCE(bank) > 8)
return -EINVAL;

mutex_lock(&dev->phy_mutex);
Expand Down Expand Up @@ -76,7 +76,7 @@ static int mt76x0_rf_csr_rr(struct mt76x02_dev *dev, u32 offset)
bank = MT_RF_BANK(offset);
reg = MT_RF_REG(offset);

if (WARN_ON_ONCE(reg > 64) || WARN_ON_ONCE(bank) > 8)
if (WARN_ON_ONCE(reg > 127) || WARN_ON_ONCE(bank) > 8)
return -EINVAL;

mutex_lock(&dev->phy_mutex);
Expand Down Expand Up @@ -119,7 +119,6 @@ rf_wr(struct mt76x02_dev *dev, u32 offset, u8 val)

return mt76_wr_rp(dev, MT_MCU_MEMMAP_RF, &pair, 1);
} else {
WARN_ON_ONCE(1);
return mt76x0_rf_csr_wr(dev, offset, val);
}
}
Expand All @@ -138,7 +137,6 @@ rf_rr(struct mt76x02_dev *dev, u32 offset)
ret = mt76_rd_rp(dev, MT_MCU_MEMMAP_RF, &pair, 1);
val = pair.value;
} else {
WARN_ON_ONCE(1);
ret = val = mt76x0_rf_csr_rr(dev, offset);
}

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4 changes: 2 additions & 2 deletions mt76x02_regs.h
Original file line number Diff line number Diff line change
Expand Up @@ -205,8 +205,8 @@
#define MT_TXQ_STA 0x0434
#define MT_RF_CSR_CFG 0x0500
#define MT_RF_CSR_CFG_DATA GENMASK(7, 0)
#define MT_RF_CSR_CFG_REG_ID GENMASK(13, 8)
#define MT_RF_CSR_CFG_REG_BANK GENMASK(17, 14)
#define MT_RF_CSR_CFG_REG_ID GENMASK(14, 8)
#define MT_RF_CSR_CFG_REG_BANK GENMASK(17, 15)
#define MT_RF_CSR_CFG_WR BIT(30)
#define MT_RF_CSR_CFG_KICK BIT(31)

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