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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>
This commit is contained in:
Sascha Silbe 2014-02-06 23:24:13 +01:00 committed by Shawn Guo
parent 33106702ce
commit 9fc77821b1
1 changed files with 3 additions and 0 deletions
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3
arch/arm/boot/dts/imx6qdl-wandboard.dtsi
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@ -123,6 +123,7 @@ MX6QDL_PAD_RGMII_RD2__RGMII_RD2 0x1b0b0
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 @@ &fec {
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";
};