openwrt-owl/target/linux/mpc83xx/patches-2.6.35/110-etsec27_war.patch

18 lines
467 B
Diff

--- a/drivers/net/gianfar.c
+++ b/drivers/net/gianfar.c
@@ -908,6 +908,14 @@ static int gfar_probe(struct of_device *
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. */