net: fec: Add possibility to enable TXC delay
This patch enables the possibility to set FEC_ENET_ENABLE_TXC_DELAY or
FEC_ENET_ENABLE_RXC_DELAY so one can via a define enable the RXC or TXC
delay in the MAC.
Signed-off-by: Philippe Schenker <philippe.schenker@toradex.com>
Reviewed-by: Oleksandr Suvorov <oleksandr.suvorov@toradex.com>
diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c
index bc5b63d..345d37b 100644
--- a/drivers/net/fec_mxc.c
+++ b/drivers/net/fec_mxc.c
@@ -503,6 +503,16 @@
writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_ETHER_EN,
&fec->eth->ecntrl);
+#ifdef FEC_ENET_ENABLE_TXC_DELAY
+ writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_TXC_DLY,
+ &fec->eth->ecntrl);
+#endif
+
+#ifdef FEC_ENET_ENABLE_RXC_DELAY
+ writel(readl(&fec->eth->ecntrl) | FEC_ECNTRL_RXC_DLY,
+ &fec->eth->ecntrl);
+#endif
+
#if defined(CONFIG_MX25) || defined(CONFIG_MX53) || defined(CONFIG_MX6SL)
udelay(100);
diff --git a/drivers/net/fec_mxc.h b/drivers/net/fec_mxc.h
index 159aec8..3c8fdda 100644
--- a/drivers/net/fec_mxc.h
+++ b/drivers/net/fec_mxc.h
@@ -188,6 +188,8 @@
#define FEC_ECNTRL_ETHER_EN 0x00000002 /* enable the FEC */
#define FEC_ECNTRL_SPEED 0x00000020
#define FEC_ECNTRL_DBSWAP 0x00000100
+#define FEC_ECNTRL_TXC_DLY 0x00010000 /* TXC delayed */
+#define FEC_ECNTRL_RXC_DLY 0x00020000 /* RXC delayed */
#define FEC_X_WMRK_STRFWD 0x00000100