ARM: dts: imx6qdl-sabrelite: remove erratum ERR006687 workaround
authorSteve Longerbeam <slongerbeam@gmail.com>
Mon, 12 Jun 2017 18:23:58 +0000 (11:23 -0700)
committerShawn Guo <shawnguo@kernel.org>
Wed, 14 Jun 2017 15:08:05 +0000 (23:08 +0800)
There is a pin conflict with GPIO_6. This pin functions as a power
input pin to the OV5642 camera sensor, but ENET uses it as the h/w
workaround for erratum ERR006687, to wake-up the ARM cores on normal
RX and TX packet done events. So we need to remove the h/w workaround
to support the OV5642. The result is that the CPUidle driver will no
longer allow entering the deep idle states on the sabrelite.

This is a partial revert of

commit 6261c4c8f13e ("ARM: dts: imx6qdl-sabrelite: use GPIO_6 for FEC
interrupt.")
commit a28eeb43ee57 ("ARM: dts: imx6: tag boards that have the HW workaround
for ERR006687")

Signed-off-by: Steve Longerbeam <steve_longerbeam@mentor.com>
Reviewed-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
arch/arm/boot/dts/imx6qdl-sabrelite.dtsi

index 8413179..89dce27 100644 (file)
        txd1-skew-ps = <0>;
        txd2-skew-ps = <0>;
        txd3-skew-ps = <0>;
-       interrupts-extended = <&gpio1 6 IRQ_TYPE_LEVEL_HIGH>,
-                             <&intc 0 119 IRQ_TYPE_LEVEL_HIGH>;
-       fsl,err006687-workaround-present;
        status = "okay";
 };
 
                                MX6QDL_PAD_RGMII_RX_CTL__RGMII_RX_CTL   0x1b030
                                /* Phy reset */
                                MX6QDL_PAD_EIM_D23__GPIO3_IO23          0x000b0
-                               MX6QDL_PAD_GPIO_6__ENET_IRQ             0x000b1
                        >;
                };