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net/macb: force endian_swp_pkt_en to off

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The core has a bit for swapping packet data endianism.
Reset default from Cadence is off. Xilinx however, who uses this core on the
Zynq SoCs, opted for on.
Force it to off. This shouldn't change the behaviour for current users of the
macb, but enables usage on Zynq devices.

Signed-off-by: Steffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Steffen Trumtrar 2013-03-27 23:07:06 +00:00 committed by David S. Miller
parent 749a2b66f4
commit a1ae385df2
2 changed files with 3 additions and 0 deletions
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1
drivers/net/ethernet/cadence/macb.c
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@ -1057,6 +1057,7 @@ static void macb_configure_dma(struct macb *bp)
dmacfg |= GEM_BF(RXBS, RX_BUFFER_SIZE / 64);
dmacfg |= GEM_BF(FBLDO, 16);
dmacfg |= GEM_BIT(TXPBMS) | GEM_BF(RXBMS, -1L);
dmacfg &= ~GEM_BIT(ENDIA);
gem_writel(bp, DMACFG, dmacfg);
}
}

2
drivers/net/ethernet/cadence/macb.h
View file

@ -173,6 +173,8 @@
/* Bitfields in DMACFG. */
#define GEM_FBLDO_OFFSET 0
#define GEM_FBLDO_SIZE 5
#define GEM_ENDIA_OFFSET 7
#define GEM_ENDIA_SIZE 1
#define GEM_RXBMS_OFFSET 8
#define GEM_RXBMS_SIZE 2
#define GEM_TXPBMS_OFFSET 10