linux-kernel - [PATCH v2 1/3] spi: dt-bindings: add doc for Amlogic A113L2 SFC

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <20250821-spifc-v2-1-b119f64b5c09@amlogic.com>
Date: Thu, 21 Aug 2025 13:17:15 +0800
From: Xianwei Zhao via B4 Relay <devnull+xianwei.zhao.amlogic.com@...nel.org>
To: Mark Brown <broonie@...nel.org>, Rob Herring <robh@...nel.org>, 
 Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Liang Yang <liang.yang@...ogic.com>, 
 Feng Chen <feng.chen@...ogic.com>
Cc: linux-spi@...r.kernel.org, devicetree@...r.kernel.org, 
 linux-kernel@...r.kernel.org, linux-amlogic@...ts.infradead.org, 
 Xianwei Zhao <xianwei.zhao@...ogic.com>
Subject: [PATCH v2 1/3] spi: dt-bindings: add doc for Amlogic A113L2 SFC

From: Feng Chen <feng.chen@...ogic.com>

Add bindings for Amlogic A113L2 SPI Flash Controller.

Signed-off-by: Feng Chen <feng.chen@...ogic.com>
Signed-off-by: Xianwei Zhao <xianwei.zhao@...ogic.com>
---
 .../devicetree/bindings/spi/amlogic,a4-spifc.yaml  | 82 ++++++++++++++++++++++
 1 file changed, 82 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/amlogic,a4-spifc.yaml b/Documentation/devicetree/bindings/spi/amlogic,a4-spifc.yaml
new file mode 100644
index 000000000000..80a89408a832
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/amlogic,a4-spifc.yaml
@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (C) 2025 Amlogic, Inc. All rights reserved
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/amlogic,a4-spifc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: SPI flash controller for Amlogic ARM SoCs
+
+maintainers:
+  - Liang Yang <liang.yang@...ogic.com>
+  - Feng Chen <feng.chen@...ogic.com>
+  - Xianwei Zhao <xianwei.zhao@...ogic.com>
+
+description:
+  The Amlogic SPI flash controller is an extended version of the Amlogic NAND
+  flash controller. It supports SPI Nor Flash and SPI NAND Flash(where the Host
+  ECC HW engine could be enabled).
+
+allOf:
+  - $ref: /schemas/spi/spi-controller.yaml#
+
+properties:
+  compatible:
+    const: amlogic,a4-spifc
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: clock apb gate
+      - description: clock used for the controller
+
+  clock-names:
+    items:
+      - const: gate
+      - const: core
+
+  interrupts:
+    maxItems: 1
+
+  amlogic,rx-adj:
+    description:
+      Adjust sample timing for RX, Sampling time move later by 1 bus clock.
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 1, 2, 3]
+    default: 0
+
+required:
+  - compatible
+  - reg
+  - clocks
+  - clock-names
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    sfc0: spi@...8d000 {
+      compatible = "amlogic,a4-spifc";
+      reg = <0xfe08d000 0x800>;
+      clocks = <&clkc_periphs 31>,
+               <&clkc_periphs 102>;
+      clock-names = "gate", "core";
+
+      pinctrl-0 = <&spiflash_default>;
+      pinctrl-names = "default";
+
+      #address-cells = <1>;
+      #size-cells = <0>;
+
+      flash@0 {
+          compatible = "spi-nand";
+          reg = <0>;
+          #address-cells = <1>;
+          #size-cells = <1>;
+          nand-ecc-engine = <&sfc0>;
+          nand-ecc-strength = <8>;
+          nand-ecc-step-size = <512>;
+      };
+    };

-- 
2.37.1