4.9-stable patches

added patches:
	arm-dts-ls1021a-restore-mdio-compatible-to-gianfar.patch

diff --git a/queue-4.9/arm-dts-ls1021a-restore-mdio-compatible-to-gianfar.patch b/queue-4.9/arm-dts-ls1021a-restore-mdio-compatible-to-gianfar.patch
new file mode 100644 (file)
index 0000000..b4d4384
--- /dev/null
+++ b/queue-4.9/arm-dts-ls1021a-restore-mdio-compatible-to-gianfar.patch
@@ -0,0 +1,54 @@
+From 7155c44624d061692b4c13aa8343f119c67d4fc0 Mon Sep 17 00:00:00 2001
+From: Vladimir Oltean <olteanv@gmail.com>
+Date: Sun, 26 Jan 2020 21:49:50 +0200
+Subject: ARM: dts: ls1021a: Restore MDIO compatible to gianfar
+
+From: Vladimir Oltean <olteanv@gmail.com>
+
+commit 7155c44624d061692b4c13aa8343f119c67d4fc0 upstream.
+
+The difference between "fsl,etsec2-mdio" and "gianfar" has to do with
+the .get_tbipa function, which calculates the address of the TBIPA
+register automatically, if not explicitly specified. [ see
+drivers/net/ethernet/freescale/fsl_pq_mdio.c ]. On LS1021A, the TBIPA
+register is at offset 0x30 within the port register block, which is what
+the "gianfar" method of calculating addresses actually does.
+
+Luckily, the bad "compatible" is inconsequential for ls1021a.dtsi,
+because the TBIPA register is explicitly specified via the second "reg"
+(<0x0 0x2d10030 0x0 0x4>), so the "get_tbipa" function is dead code.
+Nonetheless it's good to restore it to its correct value.
+
+Background discussion:
+https://www.spinics.net/lists/stable/msg361156.html
+
+Fixes: c7861adbe37f ("ARM: dts: ls1021: Fix SGMII PCS link remaining down after PHY disconnect")
+Reported-by: Pavel Machek <pavel@denx.de>
+Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
+Signed-off-by: Shawn Guo <shawnguo@kernel.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+
+---
+ arch/arm/boot/dts/ls1021a.dtsi |    4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/arch/arm/boot/dts/ls1021a.dtsi
++++ b/arch/arm/boot/dts/ls1021a.dtsi
+@@ -505,7 +505,7 @@
+               };
+ 
+               mdio0: mdio@2d24000 {
+-                      compatible = "fsl,etsec2-mdio";
++                      compatible = "gianfar";
+                       device_type = "mdio";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+@@ -513,7 +513,7 @@
+               };
+ 
+               mdio1: mdio@2d64000 {
+-                      compatible = "fsl,etsec2-mdio";
++                      compatible = "gianfar";
+                       device_type = "mdio";
+                       #address-cells = <1>;
+                       #size-cells = <0>;

diff --git a/queue-4.9/series b/queue-4.9/series
index 0a7374d43bf18e9407c776b35fe20ba3b68d772e..63f4ac95f7680671404e3d21cf65cc5e548cf0b9 100644 (file)
--- a/queue-4.9/series
+++ b/queue-4.9/series
@@ -74,3 +74,4 @@ vt-selection-push-sel_lock-up.patch
 x86-pkeys-manually-set-x86_feature_ospke-to-preserve-existing-changes.patch
 dmaengine-tegra-apb-fix-use-after-free.patch
 dmaengine-tegra-apb-prevent-race-conditions-of-tasklet-vs-free-list.patch
+arm-dts-ls1021a-restore-mdio-compatible-to-gianfar.patch