On Fri, Dec 11, 2015 at 09:39:59AM +0530, Vignesh R wrote:
> Add qspi memory mapped region entries for DRA7xx based SoCs. Also,
> update the binding documents for the controller to document this change.
>
> Signed-off-by: Vignesh R <vigne...@ti.com>
Acked-by: Rob Herring <r...@kernel.org>
> ---
>
> v5: use syscon to access scm register.
>
> Documentation/devicetree/bindings/spi/ti_qspi.txt | 17 +++++++++++++++++
> arch/arm/boot/dts/dra7.dtsi | 6 ++++--
> 2 files changed, 21 insertions(+), 2 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/spi/ti_qspi.txt
> b/Documentation/devicetree/bindings/spi/ti_qspi.txt
> index 601a360531a5..809c3f334316 100644
> --- a/Documentation/devicetree/bindings/spi/ti_qspi.txt
> +++ b/Documentation/devicetree/bindings/spi/ti_qspi.txt
> @@ -15,6 +15,10 @@ Recommended properties:
> - spi-max-frequency: Definition as per
> Documentation/devicetree/bindings/spi/spi-bus.txt
>
> +Optional properties:
> +- syscon-chipselects: Handle to system control region contains QSPI
> + chipselect register and offset of that register.
> +
> Example:
>
> qspi: qspi@4b300000 {
> @@ -26,3 +30,16 @@ qspi: qspi@4b300000 {
> spi-max-frequency = <25000000>;
> ti,hwmods = "qspi";
> };
> +
> +For dra7xx:
> +qspi: qspi@4b300000 {
> + compatible = "ti,dra7xxx-qspi";
> + reg = <0x4b300000 0x100>,
> + <0x5c000000 0x4000000>,
> + reg-names = "qspi_base", "qspi_mmap";
> + syscon-chipselects = <&scm_conf 0x558>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + spi-max-frequency = <48000000>;
> + ti,hwmods = "qspi";
> +};
> diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi
> index fe99231cbde5..be91c7781c07 100644
> --- a/arch/arm/boot/dts/dra7.dtsi
> +++ b/arch/arm/boot/dts/dra7.dtsi
> @@ -1153,8 +1153,10 @@
>
> qspi: qspi@4b300000 {
> compatible = "ti,dra7xxx-qspi";
> - reg = <0x4b300000 0x100>;
> - reg-names = "qspi_base";
> + reg = <0x4b300000 0x100>,
> + <0x5c000000 0x4000000>;
> + reg-names = "qspi_base", "qspi_mmap";
> + syscon-chipselects = <&scm_conf 0x558>;
> #address-cells = <1>;
> #size-cells = <0>;
> ti,hwmods = "qspi";
> --
> 2.6.3
>
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