Re: [PATCHv2 1/5] Documentation: dt: edac: Fix Stratix10 IRQ bindings
On Tue, Mar 12, 2019 at 2:13 PM Thor Thayer wrote: > > Hi Rob, > > On 3/12/19 11:00 AM, Rob Herring wrote: > > On Wed, Feb 27, 2019 at 11:27:21AM -0600, thor.tha...@linux.intel.com wrote: > >> From: Thor Thayer > >> > >> Fix Stratix10 ECC bindings to specify only the single > >> bit error. On Stratix10 double bit errors are handled > >> as SErrors instead of interrupts. > >> Indicate the differences between the ARM64 and ARM32 > >> EDAC architecture in the bindings. > >> > >> Signed-off-by: Thor Thayer > >> --- > >> v2 No change > >> --- > >> .../devicetree/bindings/edac/socfpga-eccmgr.txt| 23 > >> +++--- > >> 1 file changed, 16 insertions(+), 7 deletions(-) > >> > >> diff --git a/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > >> b/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > >> index 5626560a6cfd..a0ac50e15912 100644 > >> --- a/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > >> +++ b/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > >> @@ -236,33 +236,42 @@ 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. > >> +SMC calls. Therefore the device tree is slightly different. Note that > >> +only 1 interrupt is sent because the double bit errors are treated as > >> +SErrors instead of IRQ. > >> > >> Required Properties: > >> - compatible : Should be "altr,socfpga-s10-ecc-manager" > >> -- interrupts : Should be single bit error interrupt, then double bit error > >> -interrupt. > >> +- altr,sysgr-syscon : phandle to Stratix10 System Manager Block > >> + containing the ECC manager registers. > > > > Seems this was already in use, but why not just make this node a child > > of the System Manager Block and remove this phandle? > > > Yes, this was already in use but I'm trying to fix that oversight with > this patch. > > The System Manager is a collection of registers used by different > peripherals including EMAC and ECC. The EMAC has its own registers too, right? But the ECC does not it seems. > I view ECC Manager as a separate entity as is the Ethernet MAC which is > why I have it separate. Using the phandle also follows the convention > established with the Arria10 ECC Manager. I guess this ship has sailed, so: Acked-by: Rob Herring
Re: [PATCHv2 1/5] Documentation: dt: edac: Fix Stratix10 IRQ bindings
Hi Rob, On 3/12/19 11:00 AM, Rob Herring wrote: On Wed, Feb 27, 2019 at 11:27:21AM -0600, thor.tha...@linux.intel.com wrote: From: Thor Thayer Fix Stratix10 ECC bindings to specify only the single bit error. On Stratix10 double bit errors are handled as SErrors instead of interrupts. Indicate the differences between the ARM64 and ARM32 EDAC architecture in the bindings. Signed-off-by: Thor Thayer --- v2 No change --- .../devicetree/bindings/edac/socfpga-eccmgr.txt| 23 +++--- 1 file changed, 16 insertions(+), 7 deletions(-) diff --git a/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt b/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt index 5626560a6cfd..a0ac50e15912 100644 --- a/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt +++ b/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt @@ -236,33 +236,42 @@ 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. +SMC calls. Therefore the device tree is slightly different. Note that +only 1 interrupt is sent because the double bit errors are treated as +SErrors instead of IRQ. Required Properties: - compatible : Should be "altr,socfpga-s10-ecc-manager" -- interrupts : Should be single bit error interrupt, then double bit error - interrupt. +- altr,sysgr-syscon : phandle to Stratix10 System Manager Block + containing the ECC manager registers. Seems this was already in use, but why not just make this node a child of the System Manager Block and remove this phandle? Yes, this was already in use but I'm trying to fix that oversight with this patch. The System Manager is a collection of registers used by different peripherals including EMAC and ECC. I view ECC Manager as a separate entity as is the Ethernet MAC which is why I have it separate. Using the phandle also follows the convention established with the Arria10 ECC Manager. Thanks for the comments and for reviewing! Thor +- interrupts : Should be single bit error interrupt. - interrupt-controller : boolean indicator that ECC Manager is an interrupt controller - #interrupt-cells : must be set to 2. +- #address-cells: must be 1 +- #size-cells: must be 1 +- 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. +- interrupts : Should be single bit error interrupt. Example: eccmgr { compatible = "altr,socfpga-s10-ecc-manager"; - interrupts = <0 15 4>, <0 95 4>; + altr,sysmgr-syscon = <&sysmgr>; + #address-cells = <1>; + #size-cells = <1>; + interrupts = <0 15 4>; interrupt-controller; #interrupt-cells = <2>; + ranges; sdramedac { compatible = "altr,sdram-edac-s10"; - interrupts = <16 4>, <48 4>; + interrupts = <16 IRQ_TYPE_LEVEL_HIGH>; }; }; -- 2.7.4
Re: [PATCHv2 1/5] Documentation: dt: edac: Fix Stratix10 IRQ bindings
On Wed, Feb 27, 2019 at 11:27:21AM -0600, thor.tha...@linux.intel.com wrote: > From: Thor Thayer > > Fix Stratix10 ECC bindings to specify only the single > bit error. On Stratix10 double bit errors are handled > as SErrors instead of interrupts. > Indicate the differences between the ARM64 and ARM32 > EDAC architecture in the bindings. > > Signed-off-by: Thor Thayer > --- > v2 No change > --- > .../devicetree/bindings/edac/socfpga-eccmgr.txt| 23 > +++--- > 1 file changed, 16 insertions(+), 7 deletions(-) > > diff --git a/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > b/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > index 5626560a6cfd..a0ac50e15912 100644 > --- a/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > +++ b/Documentation/devicetree/bindings/edac/socfpga-eccmgr.txt > @@ -236,33 +236,42 @@ 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. > +SMC calls. Therefore the device tree is slightly different. Note that > +only 1 interrupt is sent because the double bit errors are treated as > +SErrors instead of IRQ. > > Required Properties: > - compatible : Should be "altr,socfpga-s10-ecc-manager" > -- interrupts : Should be single bit error interrupt, then double bit error > - interrupt. > +- altr,sysgr-syscon : phandle to Stratix10 System Manager Block > + containing the ECC manager registers. Seems this was already in use, but why not just make this node a child of the System Manager Block and remove this phandle? > +- interrupts : Should be single bit error interrupt. > - interrupt-controller : boolean indicator that ECC Manager is an interrupt > controller > - #interrupt-cells : must be set to 2. > +- #address-cells: must be 1 > +- #size-cells: must be 1 > +- 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. > +- interrupts : Should be single bit error interrupt. > > Example: > > eccmgr { > compatible = "altr,socfpga-s10-ecc-manager"; > - interrupts = <0 15 4>, <0 95 4>; > + altr,sysmgr-syscon = <&sysmgr>; > + #address-cells = <1>; > + #size-cells = <1>; > + interrupts = <0 15 4>; > interrupt-controller; > #interrupt-cells = <2>; > + ranges; > > sdramedac { > compatible = "altr,sdram-edac-s10"; > - interrupts = <16 4>, <48 4>; > + interrupts = <16 IRQ_TYPE_LEVEL_HIGH>; > }; > }; > -- > 2.7.4 >