On Thu, Jul 24, 2014 at 04:07:19AM +0200, Marek Vasut wrote:
> commit 22970070e027cbbb9b2878f8f7c31d0d7f29e94d upstream.
>
> Add alias for FEC ethernet on i.MX25, i.MX27, i.MX51 and i.MX53 to allow
> bootloaders (like U-Boot) patch-in the MAC address for FEC using this
> alias.
>
> Signed-off-by: Marek Vasut <marex@xxxxxxx>
> Signed-off-by: Shawn Guo <shawn.guo@xxxxxxxxxx>
> Cc: <stable@xxxxxxxxxxxxxxx> # 3.14.x
Since the patch is already on mainline, and the submitting target is
3.14.x stable kernel, you should really send it to Greg.
Shawn
> ---
> arch/arm/boot/dts/imx25.dtsi | 1 +
> arch/arm/boot/dts/imx27.dtsi | 1 +
> arch/arm/boot/dts/imx51.dtsi | 1 +
> arch/arm/boot/dts/imx53.dtsi | 1 +
> 4 files changed, 4 insertions(+)
>
> NOTE: Without this backport, the ethernet adapter on most of the boards
> with the i.MX CPUs does not know it's MAC address (the controller
> does not have an EEPROM). Without MAC address, the ethernet cannot
> be brought up and this makes such board unusable when booting from
> NFS. This patch lets the bootloader pass the MAC address via DT to
> the kernel properly, thus letting me boot from NFS again.
>
> diff --git a/arch/arm/boot/dts/imx25.dtsi b/arch/arm/boot/dts/imx25.dtsi
> index 737ed5d..de16119 100644
> --- a/arch/arm/boot/dts/imx25.dtsi
> +++ b/arch/arm/boot/dts/imx25.dtsi
> @@ -30,6 +30,7 @@
> spi2 = &spi3;
> usb0 = &usbotg;
> usb1 = &usbhost1;
> + ethernet0 = &fec;
> };
>
> cpus {
> diff --git a/arch/arm/boot/dts/imx27.dtsi b/arch/arm/boot/dts/imx27.dtsi
> index 826231e..da2eb7f 100644
> --- a/arch/arm/boot/dts/imx27.dtsi
> +++ b/arch/arm/boot/dts/imx27.dtsi
> @@ -30,6 +30,7 @@
> spi0 = &cspi1;
> spi1 = &cspi2;
> spi2 = &cspi3;
> + ethernet0 = &fec;
> };
>
> aitc: aitc-interrupt-controller@e0000000 {
> diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
> index 4bcdd3a..e1b6015 100644
> --- a/arch/arm/boot/dts/imx51.dtsi
> +++ b/arch/arm/boot/dts/imx51.dtsi
> @@ -27,6 +27,7 @@
> spi0 = &ecspi1;
> spi1 = &ecspi2;
> spi2 = &cspi;
> + ethernet0 = &fec;
> };
>
> tzic: tz-interrupt-controller@e0000000 {
> diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi
> index 7abe6c4..86df3f5 100644
> --- a/arch/arm/boot/dts/imx53.dtsi
> +++ b/arch/arm/boot/dts/imx53.dtsi
> @@ -34,6 +34,7 @@
> spi0 = &ecspi1;
> spi1 = &ecspi2;
> spi2 = &cspi;
> + ethernet0 = &fec;
> };
>
> cpus {
> --
> 2.0.1
>
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