Hi!
On Wed, Oct 19, 2016 at 03:18:44PM -0500, dinguyen@xxxxxxxxxxxxxxxxxxxxx wrote:
> From: Dinh Nguyen <dinguyen@xxxxxxxxxxxxxxxxxxxxx>
>
> Enable the QSPI node and add the flash chip.
>
> Signed-off-by: Dinh Nguyen <dinguyen@xxxxxxxxxxxxxxxxxxxxx>
> ---
> arch/arm/boot/dts/socfpga_cyclone5_sockit.dts | 33 +++++++++++++++++++++++++
> 1 file changed, 33 insertions(+)
>
> diff --git a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
> index 02e22f5..2f75e0f 100644
> --- a/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
> +++ b/arch/arm/boot/dts/socfpga_cyclone5_sockit.dts
> @@ -175,6 +175,39 @@
> status = "okay";
> };
>
> +&qspi {
> + status = "okay";
> +
> + flash: flash@0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "n25q256a";
> + reg = <0>;
> + spi-max-frequency = <100000000>;
> +
> + m25p,fast-read;
> + cdns,page-size = <256>;
> + cdns,block-size = <16>;
> + cdns,read-delay = <4>;
> + cdns,tshsl-ns = <50>;
> + cdns,tsd2d-ns = <50>;
> + cdns,tchsh-ns = <4>;
> + cdns,tslch-ns = <4>;
> +
> + partition@qspi-boot {
> + /* 8MB for raw data. */
> + label = "Flash 0 Raw Data";
> + reg = <0x0 0x800000>;
> + };
> +
> + partition@qspi-rootfs {
> + /* 120MB for jffs2 data. */
> + label = "Flash 0 jffs2 Filesystem";
> + reg = <0x800000 0x7800000>;
> + };
> + };
> +};
> +
What is the current preferred way of handling the partitions?
This doesn't fit my Sockit configuration for example. So I would always
have to patch the devicetree.
On the Socrates I didn't specify the partitions, because I did not
want to force a specific configuration.
Regards,
Steffen
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