From: Thor Thayer <thor.thayer@xxxxxxxxxxxxxxx>
Add the Altera I2C Controller to the CycloneV SoCFPGA device tree.
Signed-off-by: Thor Thayer <thor.thayer@xxxxxxxxxxxxxxx>
---
v2 Remove altr, from fifo-size.
Rename compatible string to "altr,softip-i2c"
v3 Add version to commpatible string "altr,softip-i2c-v1.0"
---
arch/arm/boot/dts/socfpga.dtsi | 13 ++++++++++---
arch/arm/boot/dts/socfpga_cyclone5_socdk.dts | 28 +++++++++++++++++++++++++++-
2 files changed, 37 insertions(+), 4 deletions(-)
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index b2674bd..d69c13d 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -133,6 +133,13 @@
#address-cells = <1>;
#size-cells = <0>;
+ clk_0: clk_0 {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <50000000>;
+ clock-output-names = "clk_0-clk";
+ };
+
osc1: osc1 {
#clock-cells = <0>;
compatible = "fixed-clock";
@@ -529,11 +536,11 @@
};
};
- fpga_bridge0: fpga_bridge@ff400000 {
+ fpga_bridge0: fpga_bridge@ff200000 {
compatible = "altr,socfpga-lwhps2fpga-bridge";
- reg = <0xff400000 0x100000>;
+ reg = <0xff200000 0x00200000>;
resets = <&rst LWHPS2FPGA_RESET>;
- clocks = <&l4_main_clk>;
+ clocks = <&clk_0>;
};
fpga_bridge1: fpga_bridge@ff500000 {
diff --git a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
index 155829f..f99576b 100644
--- a/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
+++ b/arch/arm/boot/dts/socfpga_cyclone5_socdk.dts
@@ -68,6 +68,7 @@
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
};
+
};
&can0 {
@@ -101,7 +102,7 @@
};
&i2c0 {
- status = "okay";
+ status = "disabled";
clock-frequency = <100000>;
/*
@@ -176,3 +177,28 @@
&usb1 {
status = "okay";
};
+
+&fpga_bridge0 {
+ reg-names = "axi_h2f_lw";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ ranges = <0x00000001 0x00080000 0xff280000 0x00000040>;
+
+ i2c_0: i2c@0x100080000 {
+ compatible = "altr,softip-i2c-v1.0";
+ reg = <0x00000001 0x00080000 0x00000040>;
+ interrupt-parent = <&intc>;
+ interrupts = <0 43 4>;
+ clocks = <&clk_0>;
+ fifo-size = <4>;
+ clock-frequency = <100000>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ eeprom@51 {
+ compatible = "atmel,24c32";
+ reg = <0x51>;
+ pagesize = <32>;
+ };
+ };
+};
--
2.7.4
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