[PATCH] arm: dts: am335x-bone-common: add collision and carrier sense pinmux
Felipe Balbi
balbi at ti.com
Mon Jan 5 13:44:14 PST 2015
From: Schuyler Patton <spatton at ti.com>
Added pin mux definitions for collision and carrier sense errors coming
from the ethernet phy. Without these two signals the MAC ends up ignoring
the errors detected by the PHY which end up causing a lower throughput
problem when the phy is in half duplex mode such as connected through a hub.
Fixes: 2ba3549 (ARM: dts: am335x-bone*: add DT for BeagleBone Black)
Cc: Koen Kooi <koen at dominion.thruhere.net>
Cc: Tom Rini <trini at ti.com>
Cc: Kevin Hilman <khilman at linaro.org>
Cc: <stable at vger.kernel.org> # v3.13+
Signed-off-by: Schuyler Patton <spatton at ti.com>
Signed-off-by: Felipe Balbi <balbi at ti.com>
---
arch/arm/boot/dts/am335x-bone-common.dtsi | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/arch/arm/boot/dts/am335x-bone-common.dtsi b/arch/arm/boot/dts/am335x-bone-common.dtsi
index 6cc25ed..4b29fad 100644
--- a/arch/arm/boot/dts/am335x-bone-common.dtsi
+++ b/arch/arm/boot/dts/am335x-bone-common.dtsi
@@ -97,6 +97,8 @@
cpsw_default: cpsw_default {
pinctrl-single,pins = <
/* Slave 1 */
+ 0x108 (PIN_INPUT | MUX_MODE0) /* mii1_col.mii1_col */
+ 0x10c (PIN_INPUT | MUX_MODE0) /* mii1_crs.mii1_crs */
0x110 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxerr.mii1_rxerr */
0x114 (PIN_OUTPUT_PULLDOWN | MUX_MODE0) /* mii1_txen.mii1_txen */
0x118 (PIN_INPUT_PULLUP | MUX_MODE0) /* mii1_rxdv.mii1_rxdv */
@@ -116,6 +118,8 @@
cpsw_sleep: cpsw_sleep {
pinctrl-single,pins = <
/* Slave 1 reset value */
+ 0x108 (PIN_INPUT_PULLDOWN | MUX_MODE7)
+ 0x10c (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x110 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x114 (PIN_INPUT_PULLDOWN | MUX_MODE7)
0x118 (PIN_INPUT_PULLDOWN | MUX_MODE7)
--
2.2.0
More information about the linux-arm-kernel
mailing list