[PATCH] ARM: dts: sunxi: Banana Pi: increase startup-delay for the GMAC PHY regulator

Karsten Merker
2014-11-09T13:28:34Z

On the LeMaker Banana Pi, probing the external ethernet PHY connected
to the SoC's internal GMAC module sometimes fails. The PHY power
supply is handled via a GPIO-controlled regulator, and the existing
regulator startup-delay of 50000us is too short to make sure that the
PHY is always fully powered up when it is queried by phylib. To
guarantee a reliable PHY detection, the startup-delay has to be
increased to 60000us.

Signed-off-by: Karsten Merker <merker@debian.org>
---
arch/arm/boot/dts/sun7i-a20-bananapi.dts | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
index 3de847d..36065d1 100644
--- a/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+++ b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
@@ -207,7 +207,7 @@
regulator-name = "gmac-3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;