Re: [U-Boot] [v2 6/6] stv0991: configure device tree for cadence qspi & flash

On 25 June 2015 at 04:36, Vikas Manocha vikas.manocha@st.com wrote:

This patch add the device tree entry for qspi controller & spi flash memory.

Signed-off-by: Vikas Manocha vikas.manocha@st.com

Changed in v2: None

arch/arm/dts/stv0991.dts | 34 ++++++++++++++++++++++++++++++++++ 1 file changed, 34 insertions(+)

diff --git a/arch/arm/dts/stv0991.dts b/arch/arm/dts/stv0991.dts index b25c48b..3b1efca 100644 --- a/arch/arm/dts/stv0991.dts +++ b/arch/arm/dts/stv0991.dts @@ -20,4 +20,38 @@ reg = <0x80406000 0x1000>; clock = <2700000>; };

•   aliases {
  

•           spi0 = "/spi@80203000";         /* QSPI */
  

•   };
  

•   qspi: spi@80203000 {
  

•                   compatible = "cadence,qspi";
  

•                   #address-cells = <1>;
  

•                   #size-cells = <0>;
  

•                   reg = <0x80203000 0x100>,
  

•                           <0x40000000 0x1000000>;
  

•                   clocks = <3750000>;
  

•                   ext-decoder = <0>; /* external decoder */
  

•                   num-cs = <4>;
  

•                   fifo-depth = <256>;
  

•                   bus-num = <0>;
  

•                   status = "okay";
  

•                   flash0: n25q32@0 {
  

•                           #address-cells = <1>;
  

•                           #size-cells = <1>;
  

•                           compatible = "spi-flash";
  

•                           reg = <0>;              /* chip select */
  

•                           spi-max-frequency = <50000000>;
  

•                           m25p,fast-read;
  

•                           page-size = <256>;
  

•                           block-size = <16>;      /* 2^16, 64KB */
  

•                           read-delay = <4>;       /* delay value in read data capture register */
  

•                           tshsl-ns = <50>;
  

•                           tsd2d-ns = <50>;
  

•                           tchsh-ns = <4>;
  

•                           tslch-ns = <4>;
  

•                   };
  

•   };
  

};

This node requires documentation under doc/device-tree-bindings/spi/ And also please remove any unneeded attributes/properties with in this qspi node.

thanks!