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authorStanislaw Gruszka <sgruszka@redhat.com>2012-01-24 14:09:07 +0100
committerJohn W. Linville <linville@tuxdriver.com>2012-01-27 14:57:00 -0500
commit4ed1dd2a7ec880b301beb61cbc1e08811ec340e4 (patch)
tree87e63a98c4f8bff38fbe9450da7fec5faa3ae21c /drivers
parent0c17cf962d716ea7557d18679cc98b3a43efb46d (diff)
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: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/wireless/rt2x00/rt2800lib.c21
1 files changed, 9 insertions, 12 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 3e194b7e9bb..165535cc507 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -412,18 +412,6 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
}
/*
- * 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.
*/
rt2800_drv_write_firmware(rt2x00dev, data, len);
@@ -444,6 +432,15 @@ int rt2800_load_firmware(struct rt2x00_dev *rt2x00dev,
}
/*
+ * 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.
*/
rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);