2022-03-17 00:07:52

by Medad Young

Subject: [PATCH v4 2/3] dt-bindings: edac: nuvoton: add NPCM memory controller

Added device tree binding documentation for Nuvoton BMC
NPCM memory controller.

Signed-off-by: Medad CChien <[email protected]>
---
.../edac/nuvoton,npcm-memory-controller.yaml | 62 +++++++++++++++++++
1 file changed, 62 insertions(+)
create mode 100644 Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml

diff --git a/Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml b/Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml
new file mode 100644
index 000000000000..97469294f4ba
--- /dev/null
+++ b/Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml
@@ -0,0 +1,62 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/edac/nuvoton,npcm-memory-controller.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nuvoton NPCM Memory Controller
+
+maintainers:
+ - Medad CChien <[email protected]>
+
+description: |
+ The Nuvoton BMC SoC supports DDR4 memory with and without ECC (error
+ correction check).
+
+ The memory controller supports single bit error correction, double bit
+ error detection (in-line ECC in which a section (1/8th) of the
+ memory device used to store data is used for ECC storage).
+
+ Note, the bootloader must configure ECC mode for the memory controller.
+
+properties:
+ compatible:
+ enum:
+ - nuvoton,npcm845-memory-controller
+ - nuvoton,npcm750-memory-controller
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ minItems: 1
+ items:
+ - description: uncorrectable error interrupt
+ - description: correctable error interrupt
+
+ interrupt-names:
+ minItems: 1
+ items:
+ - const: ue
+ - const: ce
+
+required:
+ - compatible
+ - reg
+ - interrupts
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ ahb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ mc: memory-controller@f0824000 {
+ compatible = "nuvoton,npcm750-memory-controller";
+ reg = <0x0 0xf0824000 0x0 0x1000>;
+ interrupts = <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+
--
2.17.1

2022-03-17 04:44:41

by Krzysztof Kozlowski

Subject: Re: [PATCH v4 2/3] dt-bindings: edac: nuvoton: add NPCM memory controller

On 15/03/2022 06:55, Medad CChien wrote:
> Added device tree binding documentation for Nuvoton BMC
> NPCM memory controller.
>
> Signed-off-by: Medad CChien <[email protected]>
> ---
> .../edac/nuvoton,npcm-memory-controller.yaml | 62 +++++++++++++++++++
> 1 file changed, 62 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/edac/nuvoton,npcm-memory-controller.yaml
>


Reviewed-by: Krzysztof Kozlowski <[email protected]>


Best regards,
Krzysztof