From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jianxin Pan Subject: [PATCH v4 1/2] dt-bindings: nand: meson: add Amlogic NAND controller driver Date: Thu, 20 Sep 2018 16:50:48 +0800 Message-ID: <1537433449-65213-2-git-send-email-jianxin.pan@amlogic.com> References: <1537433449-65213-1-git-send-email-jianxin.pan@amlogic.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1537433449-65213-1-git-send-email-jianxin.pan@amlogic.com> Sender: linux-kernel-owner@vger.kernel.org To: Boris Brezillon , linux-mtd@lists.infradead.org Cc: Liang Yang , Yixun Lan , David Woodhouse , Brian Norris , Marek Vasut , Richard Weinberger , Jerome Brunet , Neil Armstrong , Martin Blumenstingl , Carlo Caione , Kevin Hilman , Rob Herring , Jian Hu , Jianxin Pan , Hanjie Lin , Victor Wan , linux-amlogic@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org List-Id: devicetree@vger.kernel.org From: Liang Yang Add Amlogic NAND controller dt-bindings for Meson SoC, Current this driver support GXBB/GXL/AXG platform. Signed-off-by: Liang Yang Signed-off-by: Yixun Lan --- .../devicetree/bindings/mtd/amlogic,meson-nand.txt | 60 ++++++++++++++++++++++ 1 file changed, 60 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt diff --git a/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt new file mode 100644 index 0000000..803df2a --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/amlogic,meson-nand.txt @@ -0,0 +1,60 @@ +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 + +- 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.txt for generic bindings. + +Example demonstrate on AXG SoC: + + sd_emmc_c_clkc: mmc@7000 { + compatible = "amlogic,meson-axg-mmc-clkc", "syscon"; + reg = <0x0 0x7000 0x0 0x800>; + status = "okay"; + }; + + nand: nfc@7800 { + compatible = "amlogic,meson-axg-nfc"; + reg = <0x0 0x7800 0x0 0x100>; + #address-cells = <1>; + #size-cells = <0>; + interrupts = ; + status = "disabled"; + + clocks = <&clkc CLKID_SD_EMMC_C>, + <&sd_emmc_c_clkc CLKID_MMC_DIV>; + clock-names = "core", "device"; + amlogic,mmc-syscon = <&sd_emmc_c_clkc>; + + status = "okay"; + + pinctrl-names = "default"; + pinctrl-0 = <&nand_pins>; + + nand@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <1>; + + nand-on-flash-bbt; + }; + }; -- 1.9.1