The core has a bit for swapping packet data endianism. Reset default from Cadence is off. Xilinx however, that uses this core on the Zynq SoCs, opted for on. Turn it off for all devices.
Signed-off-by: Steffen Trumtrar <[email protected]> Cc: Nicolas Ferre <[email protected]> Cc: Jean-Christophe PLAGNIOL-VILLARD <[email protected]> --- drivers/net/macb.c | 1 + drivers/net/macb.h | 2 ++ 2 files changed, 3 insertions(+) diff --git a/drivers/net/macb.c b/drivers/net/macb.c index a12eea7..005234e 100644 --- a/drivers/net/macb.c +++ b/drivers/net/macb.c @@ -277,6 +277,7 @@ static void macb_configure_dma(struct macb_device *bp) dmacfg |= GEM_BF(FBLDO, 16); dmacfg |= GEM_BIT(TXPBMS) | GEM_BF(RXBMS, -1L); dmacfg |= GEM_BIT(DDRP); + dmacfg &= ~GEM_BIT(ENDIA); gem_writel(bp, DMACFG, dmacfg); } } diff --git a/drivers/net/macb.h b/drivers/net/macb.h index cadd561..1be9ff9 100644 --- a/drivers/net/macb.h +++ b/drivers/net/macb.h @@ -168,6 +168,8 @@ /* 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 -- 1.8.2.rc2 _______________________________________________ barebox mailing list [email protected] http://lists.infradead.org/mailman/listinfo/barebox
