mpc83xx: add support for kernel 3.10
[openwrt/svn-archive/archive.git] / target / linux / mpc83xx / patches-3.10 / 111-etsec27_war.patch
diff --git a/target/linux/mpc83xx/patches-3.10/111-etsec27_war.patch b/target/linux/mpc83xx/patches-3.10/111-etsec27_war.patch
new file mode 100644 (file)
index 0000000..1d44781
--- /dev/null
@@ -0,0 +1,20 @@
+--- a/drivers/net/ethernet/freescale/gianfar.c
++++ b/drivers/net/ethernet/freescale/gianfar.c
+@@ -1016,7 +1016,16 @@ static int gfar_probe(struct platform_de
+       /* We need to delay at least 3 TX clocks */
+       udelay(2);
+-      tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
++      if ((mfspr(SPRN_SVR) & 0xffff) >= 0x0011) {
++              tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
++      } else {
++              /*
++               * Do not enable flow control on chips earlier than rev 1.1,
++               * because of the eTSEC27 erratum
++               */
++              tempval = 0;
++      }
++
+       gfar_write(&regs->maccfg1, tempval);
+       /* Initialize MACCFG2. */