On Thu, Nov 07, 2019 at 10:11:12PM +0100, Lucas Stach wrote:
> Linux uses some kind of MFD scheme for the devices in the SLCR register
> range, which involves adding the parent register base address to the
> register offset of the child devices, as described in DT. This needs
> non-standard code in each of those child device drivers.
>
> Instead of replicating this weird driver code, fix up the SLCR parent
> device DT ranges to do the translation.
>
> Signed-off-by: Lucas Stach <dev@xxxxxxxxxx>
> ---
> arch/arm/dts/zynq-7000.dtsi | 4 ++++
> arch/arm/dts/zynq-zed.dts | 1 +
> 2 files changed, 5 insertions(+)
> create mode 100644 arch/arm/dts/zynq-7000.dtsi
>
> diff --git a/arch/arm/dts/zynq-7000.dtsi b/arch/arm/dts/zynq-7000.dtsi
> new file mode 100644
> index 000000000000..a4555a7a1b6c
> --- /dev/null
> +++ b/arch/arm/dts/zynq-7000.dtsi
> @@ -0,0 +1,4 @@
> +
> +&slcr {
> + ranges = <0x0 0xf8000000 0x1000>;
> +};
Does this mean Linux won't start with this device tree anymore?
Sascha
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