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net: zynq_gem: Dont flush dummy descriptors

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Dont flush dummy descriptors as they are already
allocated from a region with dcache off. Tested
this on Zynq(zc702) and ZynqMP(zcu102) boards.

Signed-off-by: Siva Durga Prasad Paladugu <sivadur@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
This commit is contained in:
Siva Durga Prasad Paladugu 2017-05-30 14:28:40 +02:00 committed by Joe Hershberger
parent dea004e41a
commit f0b94c4bcd
1 changed files with 0 additions and 4 deletions
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4
drivers/net/zynq_gem.c
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@ -407,10 +407,6 @@ static int zynq_gem_init(struct udevice *dev)
dummy_rx_bd->addr = ZYNQ_GEM_RXBUF_WRAP_MASK |
ZYNQ_GEM_RXBUF_NEW_MASK;
dummy_rx_bd->status = 0;
flush_dcache_range((ulong)&dummy_tx_bd, (ulong)&dummy_tx_bd +
sizeof(dummy_tx_bd));
flush_dcache_range((ulong)&dummy_rx_bd, (ulong)&dummy_rx_bd +
sizeof(dummy_rx_bd));
writel((ulong)dummy_tx_bd, &regs->transmit_q1_ptr);
writel((ulong)dummy_rx_bd, &regs->receive_q1_ptr);