openwrt/target/linux/mpc83xx/patches-3.14/111-etsec27_war.patch
Hauke Mehrtens bb5a18ff92 mpc83xx: add support for kernel 3.14
This is compile tested only, please run test and report back.

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

SVN-Revision: 43797
2014-12-29 17:11:13 +00:00

24 lines
787 B
Diff

--- 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
*/