openwrt/target/linux/mpc83xx/patches-2.6.36/110-etsec27_war.patch

--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -1002,6 +1002,14 @@ static int gfar_probe(struct platform_de
 	udelay(2);
 
 	tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
+	/*
+	* Do not enable flow control on chips earlier than rev 1.1,
+	* because of the eTSEC27 erratum
+	*/
+	tempval = 0;
+	if (mfspr(SPRN_SVR) & 0xffff >= 0x0011)
+		tempval = (MACCFG1_TX_FLOW | MACCFG1_RX_FLOW);
+
 	gfar_write(&regs->maccfg1, tempval);
 
 	/* Initialize MACCFG2. */