ARM: dts: imx6qdl-wandboard: use GPIO_6 for FEC interrupt

Apply the same work-around for i.MX 6D/Q erratum 006687 as used for
Sabre Lite for the Wandboard Dual / Quad.

Like on the Sabre Lite, GPIO6 is used as a power down output for
camera expansion boards. However, these expansion boards do not work
with mainline yet anyway.

Tested on a Wandboard Quad. Before the patch:

root@arm:~# ping -q -f -c 10000 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.

=== 192.168.2.1 ping statistics ===
10000 packets transmitted, 10000 received, 0% packet loss, time 97363ms
rtt min/avg/max/mdev = 0.290/9.586/10.198/1.432 ms, pipe 2, ipg/ewma 9.737/9.672 ms

After the patch:

root@arm:~# ping -q -f -c 10000 192.168.2.1
PING 192.168.2.1 (192.168.2.1) 56(84) bytes of data.

=== 192.168.2.1 ping statistics ===
10000 packets transmitted, 10000 received, 0% packet loss, time 4810ms
rtt min/avg/max/mdev = 0.246/0.355/0.863/0.044 ms, ipg/ewma 0.481/0.319 ms

Signed-off-by: Sascha Silbe <x-linux@infra-silbe.de>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

diff --git a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
index 81138b70c863049960da65cf786d5745874993ca..bdfdf89d405fcf4ae2202844445eeb4adeaa80e7 100644 (file)
--- a/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-wandboard.dtsi
@@ -123,6 +123,7 @@
                                MX6QDL_PAD_RGMII_RD3__RGMII_RD3         0x1b0b0
                                MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL   0x1b0b0
                                MX6QDL_PAD_GPIO_16__ENET_REF_CLK        0x4001b0a8
+                               MX6QDL_PAD_GPIO_6__ENET_IRQ             0x000b1
                        >;
                };
 
@@ -201,6 +202,8 @@
        pinctrl-0 = <&pinctrl_enet>;
        phy-mode = "rgmii";
        phy-reset-gpios = <&gpio3 29 0>;
+       interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
+                             <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
        status = "okay";
 };