This DT node is taken from the Rocketboard.org Linux repsitory. And is needed to enable (configure) the Cadence DM SPI driver.
Signed-off-by: Stefan Roese sr@denx.de Cc: Chin Liang See clsee@altera.com Cc: Dinh Nguyen dinguyen@altera.com Cc: Vince Bridgers vbridger@altera.com Cc: Marek Vasut marex@denx.de Cc: Pavel Machek pavel@denx.de Cc: Simon Glass sjg@chromium.org Cc: Jagannadha Sutradharudu Teki jagannadh.teki@gmail.com --- arch/arm/dts/socfpga.dtsi | 15 +++++++++++++++ arch/arm/dts/socfpga_cyclone5_socrates.dts | 20 ++++++++++++++++++++ 2 files changed, 35 insertions(+)
diff --git a/arch/arm/dts/socfpga.dtsi b/arch/arm/dts/socfpga.dtsi index 4472fd9..4a789a9 100644 --- a/arch/arm/dts/socfpga.dtsi +++ b/arch/arm/dts/socfpga.dtsi @@ -639,6 +639,21 @@ clock-names = "biu", "ciu"; };
+ qspi: spi@ff705000 { + compatible = "cadence,qspi"; + #address-cells = <1>; + #size-cells = <0>; + reg = <0xff705000 0x1000>, + <0xffa00000 0x1000>; + interrupts = <0 151 4>; + clocks = <&qspi_clk>; + ext-decoder = <0>; /* external decoder */ + num-chipselect = <4>; + fifo-depth = <128>; + bus-num = <2>; + status = "disabled"; + }; + /* Local timer */ timer@fffec600 { compatible = "arm,cortex-a9-twd-timer"; diff --git a/arch/arm/dts/socfpga_cyclone5_socrates.dts b/arch/arm/dts/socfpga_cyclone5_socrates.dts index a1814b4..9277174 100644 --- a/arch/arm/dts/socfpga_cyclone5_socrates.dts +++ b/arch/arm/dts/socfpga_cyclone5_socrates.dts @@ -48,3 +48,23 @@ &mmc { status = "okay"; }; + +&qspi { + status = "okay"; + + flash0: n25q00@0 { + #address-cells = <1>; + #size-cells = <1>; + compatible = "n25q00"; + 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>; + }; +};