[PATCHv5 5/5] arm: dts: Add Altera L2 Cache and OCRAM EDAC

tthayer
2014-11-12T00:15:31Z

From: Thor Thayer <tthayer@opensource.altera.com>

Adding the device tree entries and bindings needed to support
the Altera L2 cache and On-Chip RAM EDAC. This patch relies upon
an earlier patch to declare and setup On-chip RAM properly.
http://www.spinics.net/lists/devicetree/msg51117.html

Signed-off-by: Thor Thayer <tthayer@opensource.altera.com>
---
v2: Remove OCRAM declaration and reference prior patch.

v3-5: No Change
---
.../bindings/arm/altera/socfpga-l2-edac.txt | 15 +++++++++++++++
.../bindings/arm/altera/socfpga-ocram-edac.txt | 16 ++++++++++++++++
arch/arm/boot/dts/socfpga.dtsi | 15 ++++++++++++++-
3 files changed, 45 insertions(+), 1 deletion(-)
create mode 100644 Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt
create mode 100644 Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt

diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt
new file mode 100644
index 0000000..35b19e3
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-l2-edac.txt
@@ -0,0 +1,15 @@
+Altera SoCFPGA L2 cache Error Detection and Correction [EDAC]
+
+Required Properties:
+- compatible : Should be "altr,l2-edac"
+- reg : Address and size for ECC error interrupt clear registers.
+- interrupts : Should be single bit error interrupt, then double bit error
+ interrupt. Note the rising edge type.
+
+Example:
+
+ l2edac@ffd08140 {
+ compatible = "altr,l2-edac";
+ reg = <0xffd08140 0x4>;
+ interrupts = <0 36 1>, <0 37 1>;
+ };
diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt
new file mode 100644
index 0000000..31ab205
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-ocram-edac.txt
@@ -0,0 +1,16 @@
+Altera SoCFPGA On-Chip RAM Error Detection and Correction [EDAC]
+
+OCRAM ECC Required Properties:
+- compatible : Should be "altr,ocram-edac"
+- reg : Address and size for ECC error interrupt clear registers.
+- iram : phandle to On-Chip RAM definition.
+- interrupts : Should be single bit error interrupt, then double bit error
+ interrupt. Note the rising edge type.
+
+Example:
+ ocramedac@ffd08144 {
+ compatible = "altr,ocram-edac";
+ reg = <0xffd08144 0x4>;
+ iram = <&ocram>;
+ interrupts = <0 178 1>, <0 179 1>;
+ };
diff --git a/arch/arm/boot/dts/socfpga.dtsi b/arch/arm/boot/dts/socfpga.dtsi
index 6af96ed..32c63a3 100644
--- a/arch/arm/boot/dts/socfpga.dtsi
+++ b/arch/arm/boot/dts/socfpga.dtsi
@@ -618,8 +618,21 @@
interrupts = <0 39 4>;
};

+ l2edac@ffd08140 {
+ compatible = "altr,l2-edac";
+ reg = <0xffd08140 0x4>;
+ interrupts = <0 36 1>, <0 37 1>;
+ };
+
+ ocramedac@ffd08144 {
+ compatible = "altr,ocram-edac";
+ reg = <0xffd08144 0x4>;
+ iram = <&ocram>;
+ interrupts = <0 178 1>, <0 179 1>;
+ };
+
L2: l2-cache@fffef000 {
- compatible = "arm,pl310-cache";
+ compatible = "arm,pl310-cache", "syscon";
reg = <0xfffef000 0x1000>;
interrupts = <0 38 0x04>;
cache-unified;
--
1.7.9.5