From mboxrd@z Thu Jan 1 00:00:00 1970 From: thor.thayer@linux.intel.com (thor.thayer at linux.intel.com) Date: Tue, 24 Apr 2018 13:35:57 -0500 Subject: [PATCH 1/3] Documentation: dt: socfpga: Add Stratix10 ECC Manager binding In-Reply-To: <1524594959-5259-1-git-send-email-thor.thayer@linux.intel.com> References: <1524594959-5259-1-git-send-email-thor.thayer@linux.intel.com> Message-ID: <1524594959-5259-2-git-send-email-thor.thayer@linux.intel.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org From: Thor Thayer Add the device tree bindings needed to support the Stratix10 ECC Manager and SDRAM ECC to the existing bindings. Signed-off-by: Thor Thayer --- .../bindings/arm/altera/socfpga-eccmgr.txt | 47 ++++++++++++++++++++++ 1 file changed, 47 insertions(+) diff --git a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt index 4a1714f96bab..fe48ad293a24 100644 --- a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt +++ b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt @@ -231,3 +231,50 @@ 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 in EL3 with SMC calls. +Therefore the device tree is slightly different. + +Required Properties: +- compatible : Should be "altr,socfpga-s10-ecc-manager" +- altr,sysgr-syscon : phandle to Stratix10 System Manager Block + containing the ECC manager registers. +- #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" +- reg : Address and size for ECC error interrupt clear registers. +- interrupts : Should be single bit error interrupt, then double bit error + interrupt, in this order. + +Example: + + eccmgr: eccmgr at ffd12000 { + compatible = "altr,socfpga-s10-ecc-manager"; + altr,sysmgr-syscon = <&sysmgr>; + #address-cells = <1>; + #size-cells = <1>; + interrupts = <0 15 4>, <0 95 4>; + interrupt-controller; + #interrupt-cells = <2>; + ranges; + + sdramedac at f8011100 { + compatible = "altr,sdram-edac-s10"; + reg = <0xf8011100 0xC0>; + interrupts = <16 4>, <48 4>; + }; + }; + -- 2.7.4