driver/net/fm/memac_phy: set NEG bit for external MDIOs
NEG bit default is '1' for external MDIOs as per FMAN-v3 RM, but on some
platforms, e.g. T2080QDS, this bit is '0', which leads to MDIO failure
on XAUI PHY, so set this bit definitely to align with the RM.
Signed-off-by: Shaohui Xie <Shaohui.Xie@freescale.com>
Acked-by: Joe Hershberger <joe.hershberger@ni.com>
Reviewed-by: York Sun <yorksun@freescale.com>
diff --git a/arch/powerpc/include/asm/fsl_memac.h b/arch/powerpc/include/asm/fsl_memac.h
index f84c1a9..bed2a40 100644
--- a/arch/powerpc/include/asm/fsl_memac.h
+++ b/arch/powerpc/include/asm/fsl_memac.h
@@ -244,6 +244,7 @@
#define MDIO_STAT_PRE (1 << 5)
#define MDIO_STAT_ENC (1 << 6)
#define MDIO_STAT_HOLD_15_CLK (7 << 2)
+#define MDIO_STAT_NEG (1 << 23)
#define MDIO_CTL_DEV_ADDR(x) (x & 0x1f)
#define MDIO_CTL_PORT_ADDR(x) ((x & 0x1f) << 5)