rt2x00: Wait up to one second on rt2800 for WPDMA to be ready
At least some devices need such a long time to inititalize WPDMA. This only increases the maximum wait time and shouldn't affect devices that have been working before. Reported-by: Joshua Smith <jesmith@kaon.com> Signed-off-by: Helmut Schaa <helmut.schaa@googlemail.com> Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -277,13 +277,17 @@ int rt2800_wait_wpdma_ready(struct rt2x00_dev *rt2x00dev)
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unsigned int i;
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u32 reg;
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/*
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* Some devices are really slow to respond here. Wait a whole second
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* before timing out.
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*/
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for (i = 0; i < REGISTER_BUSY_COUNT; i++) {
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rt2800_register_read(rt2x00dev, WPDMA_GLO_CFG, ®);
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if (!rt2x00_get_field32(reg, WPDMA_GLO_CFG_TX_DMA_BUSY) &&
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!rt2x00_get_field32(reg, WPDMA_GLO_CFG_RX_DMA_BUSY))
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return 0;
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msleep(1);
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msleep(10);
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}
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ERROR(rt2x00dev, "WPDMA TX/RX busy, aborting.\n");
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