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Message-ID: <20220402074921.13316-3-liang.yang@amlogic.com>
Date: Sat, 2 Apr 2022 15:49:20 +0800
From: Liang Yang <liang.yang@...ogic.com>
To: Miquel Raynal <miquel.raynal@...tlin.com>,
<linux-mtd@...ts.infradead.org>
CC: Liang Yang <liang.yang@...ogic.com>,
Rob Herring <robh+dt@...nel.org>,
Richard Weinberger <richard@....at>,
Vignesh Raghavendra <vigneshr@...com>,
Jerome Brunet <jbrunet@...libre.com>,
Neil Armstrong <narmstrong@...libre.com>,
Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
Kevin Hilman <khilman@...libre.com>,
Jianxin Pan <jianxin.pan@...ogic.com>,
Victor Wan <victor.wan@...ogic.com>,
XianWei Zhao <xianwei.zhao@...ogic.com>,
Kelvin Zhang <kelvin.zhang@...ogic.com>,
BiChao Zheng <bichao.zheng@...ogic.com>,
YongHui Yu <yonghui.yu@...ogic.com>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-amlogic@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
Subject: [PATCH v4 2/2] dt-bindings: nand: meson: refine Amlogic NAND controller driver
convert txt to yaml and refine the meson NFC clock document.
Signed-off-by: Liang Yang <liang.yang@...ogic.com>
---
.../bindings/mtd/amlogic,meson-nand.txt | 60 --------------
.../bindings/mtd/amlogic,meson-nand.yaml | 80 +++++++++++++++++++
2 files changed, 80 insertions(+), 60 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
create mode 100644 Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
deleted file mode 100644
index 5794ab1147c1..000000000000
--- a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt
+++ /dev/null
@@ -1,60 +0,0 @@
-Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
-
-This file documents the properties in addition to those available in
-the MTD NAND bindings.
-
-Required properties:
-- compatible : contains one of:
- - "amlogic,meson-gxl-nfc"
- - "amlogic,meson-axg-nfc"
-- clocks :
- A list of phandle + clock-specifier pairs for the clocks listed
- in clock-names.
-
-- clock-names: Should contain the following:
- "core" - NFC module gate clock
- "device" - device clock from eMMC sub clock controller
- "rx" - rx clock phase
- "tx" - tx clock phase
-
-- amlogic,mmc-syscon : Required for NAND clocks, it's shared with SD/eMMC
- controller port C
-
-Optional children nodes:
-Children nodes represent the available nand chips.
-
-Other properties:
-see Documentation/devicetree/bindings/mtd/nand-controller.yaml for generic bindings.
-
-Example demonstrate on AXG SoC:
-
- sd_emmc_c_clkc: mmc@...0 {
- compatible = "amlogic,meson-axg-mmc-clkc", "syscon";
- reg = <0x0 0x7000 0x0 0x800>;
- };
-
- nand-controller@...0 {
- compatible = "amlogic,meson-axg-nfc";
- reg = <0x0 0x7800 0x0 0x100>;
- #address-cells = <1>;
- #size-cells = <0>;
- interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
-
- clocks = <&clkc CLKID_SD_EMMC_C>,
- <&sd_emmc_c_clkc CLKID_MMC_DIV>,
- <&sd_emmc_c_clkc CLKID_MMC_PHASE_RX>,
- <&sd_emmc_c_clkc CLKID_MMC_PHASE_TX>;
- clock-names = "core", "device", "rx", "tx";
- amlogic,mmc-syscon = <&sd_emmc_c_clkc>;
-
- pinctrl-names = "default";
- pinctrl-0 = <&nand_pins>;
-
- nand@0 {
- reg = <0>;
- #address-cells = <1>;
- #size-cells = <1>;
-
- nand-on-flash-bbt;
- };
- };
diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
new file mode 100644
index 000000000000..965a2dd20645
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.yaml
@@ -0,0 +1,80 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/mtd/amlogic,meson-nand.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Amlogic NAND Flash Controller (NFC) for GXBB/GXL/AXG family SoCs
+
+maintainers:
+ - liang.yang@...ogic.com
+
+properties:
+ compatible:
+ enum:
+ - "amlogic,meson-gxl-nfc"
+ - "amlogic,meson-axg-nfc"
+
+ reg:
+ maxItems: 2
+
+ '#address-cells':
+ const: 1
+
+ '#size-cells':
+ const: 0
+
+ reg-names:
+ items:
+ - const: nfc
+ - const: emmc
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: core
+ - const: device
+
+ "#clock-cells":
+ const: 1
+
+required:
+ - compatible
+ - reg
+ - '#address-cells'
+ - '#size-cells'
+ - reg-names
+ - interrupts
+ - clocks
+ - clock-names
+
+additionalProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/clock/axg-clkc.h>
+ #include <dt-bindings/interrupt-controller/arm-gic.h>
+ apb {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ nand-controller@...0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "amlogic,meson-axg-nfc";
+ reg = <0x0 0x7800 0x0 0x100>,
+ <0x0 0x7000 0x0 0x800>;
+ reg-names = "nfc", "emmc";
+
+ interrupts = <GIC_SPI 34 IRQ_TYPE_EDGE_RISING>;
+ clocks = <&clkc CLKID_SD_EMMC_C>,
+ <&clkc CLKID_FCLK_DIV2>;
+ clock-names = "core", "device";
+
+ };
+ };
+...
--
2.34.1
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