提交 4ed1dd2a 编写于 作者: S Stanislaw Gruszka 提交者: John W. Linville

rt2800: disable DMA after firmware load

We can receive frames just after firmware load with current code, so
disable DMA just after firmware is loaded, not before.
Acked-by: NIvo van Doorn <IvDoorn@gmail.com>
Signed-off-by: NStanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
上级 0c17cf96
......@@ -411,18 +411,6 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
rt2800_register_write(rt2x00dev, PWR_PIN_CFG, 0x00000002);
}
/*
* Disable DMA, will be reenabled later when enabling
* the radio.
*/
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_DMA_BUSY, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_RX_DMA_BUSY, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_TX_WRITEBACK_DONE, 1);
rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
/*
* Write firmware to the device.
*/
......@@ -443,6 +431,15 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
return -EBUSY;
}
/*
* Disable DMA, will be reenabled later when enabling
* the radio.
*/
rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, &reg);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_TX_DMA, 0);
rt2x00_set_field32(&reg, WPDMA_GLO_CFG_ENABLE_RX_DMA, 0);
rt2800_register_write(rt2x00dev, WPDMA_GLO_CFG, reg);
/*
* Initialize firmware.
*/
......
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