[kernel] r22064 - in dists/sid/linux/debian: . patches patches/features/arm

[Ian James Campbell]

Author: ijc
Date: Thu Nov 13 21:38:54 2014
New Revision: 22064

Log:
[armhf] Increase Ethernet phy startup delay on Banana-Pi.

Patch from Karsten Merker (Closes: 767042)

Added:
   dists/sid/linux/debian/patches/features/arm/dts-sunxi-Banana-Pi-increase-startup-delay-for-the-GMAC-PHY-regulator.patch
Modified:
   dists/sid/linux/debian/changelog
   dists/sid/linux/debian/patches/series

Modified: dists/sid/linux/debian/changelog
==============================================================================
--- dists/sid/linux/debian/changelog	Thu Nov 13 20:29:37 2014	(r22063)
+++ dists/sid/linux/debian/changelog	Thu Nov 13 21:38:54 2014	(r22064)
@@ -9,6 +9,8 @@
   * [xen] Backport various netback fixes (Closes: #767261).
   * Backport fix for TSO with mv643xx_eth driver, replacing previous workaround
     (#764162)
+  * [armhf] Increase Ethernet phy startup delay on Banana-Pi. Patch from
+    Karsten Merker (Closes: #767042)
 
  -- Ben Hutchings <ben at decadent.org.uk>  Sun, 09 Nov 2014 10:13:09 +0000
 

Added: dists/sid/linux/debian/patches/features/arm/dts-sunxi-Banana-Pi-increase-startup-delay-for-the-GMAC-PHY-regulator.patch
==============================================================================
--- /dev/null	00:00:00 1970	(empty, because file is newly added)
+++ dists/sid/linux/debian/patches/features/arm/dts-sunxi-Banana-Pi-increase-startup-delay-for-the-GMAC-PHY-regulator.patch	Thu Nov 13 21:38:54 2014	(r22064)
@@ -0,0 +1,35 @@
+From f82f99afaa65fd28d0f8409c50e8fcc65ee5e15b Mon Sep 17 00:00:00 2001
+From: Karsten Merker <merker at debian.org>
+Date: Wed, 12 Nov 2014 00:01:46 +0100
+Subject: ARM: dts: sunxi: Banana Pi: increase startup-delay for the GMAC PHY  regulator
+Origin: https://git.kernel.org/cgit/linux/kernel/git/mripard/linux.git/commit/?h=sunxi/dt-for-3.19&id=f82f99afaa65fd28d0f8409c50e8fcc65ee5e15b
+
+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. Tests
+have shown that to provide a reliable PHY detection, the startup-delay
+has to be increased to at least 60000us. To have a certain safety margin
+and to cater for manufacturing variations between different boards,
+the delay gets set to 100000us as discussed on the linux-arm-kernel
+mailinglist.
+
+Signed-off-by: Karsten Merker <merker at debian.org>
+Acked-by: Hans de Goede <hdegoede at redhat.com>
+Signed-off-by: Maxime Ripard <maxime.ripard at free-electrons.com>
+
+diff --git a/arch/arm/boot/dts/sun7i-a20-bananapi.dts b/arch/arm/boot/dts/sun7i-a20-bananapi.dts
+index 3de847d..1cf1214 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>;
+-		startup-delay-us = <50000>;
++		startup-delay-us = <100000>;
+ 		enable-active-high;
+ 		gpio = <&pio 7 23 0>;
+ 	};
+

Modified: dists/sid/linux/debian/patches/series
==============================================================================
--- dists/sid/linux/debian/patches/series	Thu Nov 13 20:29:37 2014	(r22063)
+++ dists/sid/linux/debian/patches/series	Thu Nov 13 21:38:54 2014	(r22064)
@@ -113,6 +113,7 @@
 features/arm/dts-sun7i-Add-spi0_pins_a-pinctrl-setting.patch
 features/arm/dts-sun7i-Add-uart3_pins_b-pinctrl-setting.patch
 features/arm/dts-sun7i-Add-Banana-Pi-board.patch
+features/arm/dts-sunxi-Banana-Pi-increase-startup-delay-for-the-GMAC-PHY-regulator.patch
 features/arm/dts-sun7i-Add-support-for-Olimex-A20-OLinuXino-LIME.patch
 features/arm64/drivers-net-Add-APM-X-Gene-SoC-ethernet-driver-suppo.patch
 features/arm64/drivers-net-NET_XGENE-should-depend-on-HAS_DMA.patch