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Commit a1ae385d authored by Steffen Trumtrar's avatar Steffen Trumtrar Committed by David S. Miller
Browse files

net/macb: force endian_swp_pkt_en to off 



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: default avatarSteffen Trumtrar <s.trumtrar@pengutronix.de>
Cc: Nicolas Ferre <nicolas.ferre@atmel.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 749a2b66

drivers/net/ethernet/cadence/macb.c

+1 −0
Original line number Diff line number Diff line
@@ -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);

	}

}

drivers/net/ethernet/cadence/macb.h

+2 −0
Original line number Diff line number Diff line
@@ -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