[linux-yocto] [PATCH 07/14] FogBugz #549288-2: Add Stratix10 ECC Manager binding

Meng.Li at windriver.com Meng.Li at windriver.com
Wed May 16 02:14:41 PDT 2018


From: Thor Thayer <thor.thayer at linux.intel.com>

commit 97a3b7365253bc7757b2c885a23e4bd57be9d25b from
https://github.com/altera-opensource/linux-socfpga.git

Documentation: dt: socfpga: Add Stratix10 ECC Manager binding

Add the device tree bindings needed to support the Stratix10
ECC Manager and SDRAM ECC.

Signed-off-by: Thor Thayer <thor.thayer at linux.intel.com>
Signed-off-by: Meng Li <Meng.Li at windriver.com>
---
 .../bindings/arm/altera/socfpga-eccmgr.txt         | 42 ++++++++++++++++++++++
 1 file changed, 42 insertions(+)

diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
index 4a1714f..fe582f6 100644
--- a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
+++ b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
@@ -231,3 +231,45 @@ Example:
 				     <48 IRQ_TYPE_LEVEL_HIGH>;
 		};
 	};
+
+Stratix10 SoCFPGA ECC Manager
+The Stratix10 SoC ECC Manager handles the IRQs for each peripheral
+in a shared register similar to the Arria10. However, ECC requires
+access to registers that can only be read from Secure Monitor with
+SMC calls.
+Therefore the device tree is slightly different.
+
+Required Properties:
+- compatible : Should be "altr,socfpga-s10-ecc-manager"
+- #address-cells: must be 1
+- #size-cells: must be 1
+- interrupts : Should be single bit error interrupt, then double bit error
+	interrupt.
+- interrupt-controller : boolean indicator that ECC Manager is an interrupt controller
+- #interrupt-cells : must be set to 2.
+- ranges : standard definition, should translate from local addresses
+
+Subcomponents:
+
+SDRAM ECC
+Required Properties:
+- compatible : Should be "altr,sdram-edac-s10"
+- interrupts : Should be single bit error interrupt, then double bit error
+	interrupt, in this order.
+
+Example:
+
+	eccmgr: eccmgr {
+		compatible = "altr,socfpga-s10-ecc-manager";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		interrupts = <0 15 4>, <0 95 4>;
+		interrupt-controller;
+		#interrupt-cells = <2>;
+		ranges;
+
+		sdramedac {
+			compatible = "altr,sdram-edac-s10";
+			interrupts = <16 4>, <48 4>;
+		};
+	};
-- 
2.7.4



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