[U-Boot] [PATCH 2/4 v4] arm: socfpga: dts: Add Cadence QSPI DT node to socfpga.dtsi

Stefan Roese
2014-11-07T11:37:50Z

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 at 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 at 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 at 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>;
+ };
+};
--
2.1.3