mpc83xx: add support for kernel 3.14

[openwrt/svn-archive/archive.git] / target / linux / mpc83xx / patches-3.14 / 111-etsec27_war.patch

diff --git a/target/linux/mpc83xx/patches-3.14/111-etsec27_war.patch b/target/linux/mpc83xx/patches-3.14/111-etsec27_war.patch
new file mode 100644 (file)
index 0000000..0c4b3fd
--- /dev/null
+++ b/target/linux/mpc83xx/patches-3.14/111-etsec27_war.patch
@@ -0,0 +1,23 @@
+--- a/drivers/net/ethernet/freescale/gianfar.c
++++ b/drivers/net/ethernet/freescale/gianfar.c
+@@ -1050,10 +1050,16 @@ static int gfar_probe(struct platform_de
+       udelay(2);
+ 
+       tempval = 0;
+-      if (!priv->pause_aneg_en && priv->tx_pause_en)
+-              tempval |= MACCFG1_TX_FLOW;
+-      if (!priv->pause_aneg_en && priv->rx_pause_en)
+-              tempval |= MACCFG1_RX_FLOW;
++      /*
++       * Do not enable flow control on chips earlier than rev 1.1,
++       * because of the eTSEC27 erratum
++       */
++      if ((mfspr(SPRN_SVR) & 0xffff) >= 0x0011) {
++              if (!priv->pause_aneg_en && priv->tx_pause_en)
++                      tempval |= MACCFG1_TX_FLOW;
++              if (!priv->pause_aneg_en && priv->rx_pause_en)
++                      tempval |= MACCFG1_RX_FLOW;
++      }
+       /* the soft reset bit is not self-resetting, so we need to
+        * clear it before resuming normal operation
+        */