From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
To: gregkh@linuxfoundation.org
Cc: linux-kernel@vger.kernel.org, Sven Peter <sven@svenpeter.dev>,
Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>,
Rob Herring <robh@kernel.org>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Subject: [PATCH 04/16] dt-bindings: nvmem: Add apple,efuses
Date: Fri, 29 Apr 2022 17:26:49 +0100 [thread overview]
Message-ID: <20220429162701.2222-5-srinivas.kandagatla@linaro.org> (raw)
In-Reply-To: <20220429162701.2222-1-srinivas.kandagatla@linaro.org>
From: Sven Peter <sven@svenpeter.dev>
Apple SoCs come with eFuses used to store factory-programmed data
such as calibration settings for the PCIe and Type-C PHY.
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sven Peter <sven@svenpeter.dev>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
---
.../bindings/nvmem/apple,efuses.yaml | 50 +++++++++++++++++++
1 file changed, 50 insertions(+)
create mode 100644 Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
diff --git a/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml b/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
new file mode 100644
index 000000000000..5ec8f2bdb3a5
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvmem/apple,efuses.yaml
@@ -0,0 +1,50 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/nvmem/apple,efuses.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Apple SoC eFuse-based NVMEM
+
+description: |
+ Apple SoCs such as the M1 contain factory-programmed eFuses used to e.g. store
+ calibration data for the PCIe and the Type-C PHY or unique chip identifiers
+ such as the ECID.
+
+maintainers:
+ - Sven Peter <sven@svenpeter.dev>
+
+allOf:
+ - $ref: "nvmem.yaml#"
+
+properties:
+ compatible:
+ items:
+ - enum:
+ - apple,t8103-efuses
+ - apple,t6000-efuses
+ - const: apple,efuses
+
+ reg:
+ maxItems: 1
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ efuse@3d2bc000 {
+ compatible = "apple,t8103-efuses", "apple,efuses";
+ reg = <0x3d2bc000 0x1000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ecid: efuse@500 {
+ reg = <0x500 0x8>;
+ };
+ };
+
+...
--
2.21.0
next prev parent reply other threads:[~2022-04-29 16:28 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-29 16:26 [PATCH 00/16] nvmem: patches (set 1) for 5.19 Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 01/16] nvmem: core: support passing DT node in cell info Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 02/16] nvmem: brcm_nvram: find Device Tree nodes for NVMEM cells Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 03/16] MAINTAINERS: Add apple efuses nvmem files to ARM/APPLE MACHINE Srinivas Kandagatla
2022-04-29 16:26 ` Srinivas Kandagatla [this message]
2022-04-29 16:26 ` [PATCH 05/16] nvmem: Add Apple eFuse driver Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 06/16] nvmem: bcm-ocotp: mark ACPI device ID table as maybe unused Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 07/16] nvmem: sunplus-ocotp: drop useless probe confirmation Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 08/16] nvmem: sunplus-ocotp: staticize sp_otp_v0 Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 09/16] nvmem: qfprom: using pm_runtime_resume_and_get instead of pm_runtime_get_sync Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 10/16] nvmem: brcm_nvram: check for allocation failure Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 11/16] dt-bindings: nvmem: sfp: Fix typo Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 12/16] dt-bindings: nvmem: sfp: Add clock properties Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 13/16] dt-bindings: nvmem: sfp: Add TA_PROG_SFP supply Srinivas Kandagatla
2022-04-29 16:26 ` [PATCH 14/16] dt-bindings: nvmem: sfp: Add compatible binding for TA 2.1 SFPs Srinivas Kandagatla
2022-04-29 16:27 ` [PATCH 15/16] nvmem: sfp: Use regmap Srinivas Kandagatla
2022-04-29 16:27 ` [PATCH 16/16] nvmem: sfp: Add support for TA 2.1 devices Srinivas Kandagatla
2022-05-09 13:47 ` [PATCH 00/16] nvmem: patches (set 1) for 5.19 Greg KH
2022-05-10 9:29 ` Srinivas Kandagatla
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