On Mon, Sep 15, 2025 at 03:23:51PM +0300, Ioana Ciornei wrote:
> Describe the FPGA present on the LX2160ARDB board as a simple-mfd I2C
> device. The FPGA presents registers that deal with power-on-reset
> timing, muxing, SFP cage monitoring and control etc.
>
> Also add the two GPIO controllers responsible for monitoring and
> controlling the SFP+ cages used for MAC5 and MAC6.
>
> Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
> ---
> Changes in v2:
> - Use the same compatible string for both GPIO controller nodes.
>
> .../boot/dts/freescale/fsl-lx2160a-rdb.dts | 31 +++++++++++++++++++
> 1 file changed, 31 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> index 0c44b3cbef77..4ede1295f29d 100644
> --- a/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> +++ b/arch/arm64/boot/dts/freescale/fsl-lx2160a-rdb.dts
> @@ -170,6 +170,37 @@ mt35xu512aba1: flash@1 {
> &i2c0 {
> status = "okay";
>
> + cpld@66 {
> + compatible = "fsl,lx2160ardb-fpga";
> + reg = <0x66>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> +
> + sfp2_csr: gpio@19 {
> + compatible = "fsl,lx2160ardb-fpga-gpio-sfp";
> + reg = <0x19>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-line-names =
> + "SFP2_TX_EN", "",
> + "", "",
> + "SFP2_RX_LOS", "SFP2_TX_FAULT",
> + "", "SFP2_MOD_ABS";
> + };
> +
> + sfp3_csr: gpio@1a {
> + compatible = "fsl,lx2160ardb-fpga-gpio-sfp";
> + reg = <0x1a>;
> + gpio-controller;
> + #gpio-cells = <2>;
> + gpio-line-names =
> + "SFP3_TX_EN", "",
> + "", "",
> + "SFP3_RX_LOS", "SFP3_TX_FAULT",
> + "", "SFP3_MOD_ABS";
> + };
> + };
> +
> i2c-mux@77 {
> compatible = "nxp,pca9547";
> reg = <0x77>;
> --
> 2.25.1
>