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* ks8842: Support DMA when accessed via timberdaleRichard Röjfors2010-07-271-0/+4
| | | | | | | | | | | | | | | | | | | | | This patch adds support for RX and TX DMA via the DMA API, this is only supported when the KS8842 is accessed via timberdale. There is no support for DMA on the generic bus interface it self, a state machine inside the FPGA is handling RX and TX transfers to/from buffers in the FPGA. The host CPU can do DMA to and from these buffers. The FPGA has to handle the RX interrupts, so these must be enabled in the ks8842 but not in the FPGA. The driver must not disable the RX interrupt that would mean that the data transfers into the FPGA buffers would stop. The host shall not enable TX interrupts since TX is handled by the FPGA, the host is notified by DMA callbacks when transfers are finished. Which DMA channels to use are added as parameters in the platform data struct. Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* ks8842: Add platform data for setting mac addressRichard Röjfors2010-04-211-0/+34
This patch adds platform data to the ks8842 driver. Via the platform data a MAC address, to be used by the controller, can be passed. To ensure this MAC address is used, the MAC address is written after each hardware reset. Signed-off-by: Richard Röjfors <richard.rojfors@pelagicore.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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