From patchwork Fri Nov 26 11:39:13 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 518784 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5A7F7C4332F for ; Fri, 26 Nov 2021 11:56:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1348867AbhKZL77 (ORCPT ); Fri, 26 Nov 2021 06:59:59 -0500 Received: from mslow1.mail.gandi.net ([217.70.178.240]:38237 "EHLO mslow1.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233209AbhKZL56 (ORCPT ); Fri, 26 Nov 2021 06:57:58 -0500 Received: from relay9-d.mail.gandi.net (unknown [217.70.183.199]) by mslow1.mail.gandi.net (Postfix) with ESMTP id 6BA6DC1E44; Fri, 26 Nov 2021 11:40:02 +0000 (UTC) Received: (Authenticated sender: miquel.raynal@bootlin.com) by relay9-d.mail.gandi.net (Postfix) with ESMTPSA id E01B9FF809; Fri, 26 Nov 2021 11:39:39 +0000 (UTC) From: Miquel Raynal To: Richard Weinberger , Vignesh Raghavendra , Tudor Ambarus , Pratyush Yadav , Michael Walle , Cc: Rob Herring , , Mark Brown , , Xiangsheng Hou , Julien Su , Jaime Liao , Boris Brezillon , Thomas Petazzoni , Miquel Raynal , Rob Herring Subject: [PATCH v2 09/20] dt-bindings: mtd: Describe Macronix NAND ECC engine Date: Fri, 26 Nov 2021 12:39:13 +0100 Message-Id: <20211126113924.310459-10-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20211126113924.310459-1-miquel.raynal@bootlin.com> References: <20211126113924.310459-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-spi@vger.kernel.org Describe Macronix NAND ECC engine. This engine may be used as an external engine or can be pipelined with either a raw NAND controller or a SPI controller. Both hardware designs with a SPI controller are shown in the examples. Signed-off-by: Miquel Raynal Reviewed-by: Rob Herring --- .../bindings/mtd/mxicy,nand-ecc-engine.yaml | 77 +++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml diff --git a/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml b/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml new file mode 100644 index 000000000000..804479999ccb --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/mxicy,nand-ecc-engine.yaml @@ -0,0 +1,77 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/mxicy,nand-ecc-engine.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Macronix NAND ECC engine device tree bindings + +maintainers: + - Miquel Raynal + +properties: + compatible: + const: mxicy,nand-ecc-engine-rev3 + + reg: + maxItems: 1 + + clocks: + maxItems: 1 + + interrupts: + maxItems: 1 + +required: + - compatible + - reg + +additionalProperties: false + +examples: + - | + /* External configuration */ + spi_controller0: spi@43c30000 { + compatible = "mxicy,mx25f0a-spi"; + reg = <0x43c30000 0x10000>, <0xa0000000 0x4000000>; + reg-names = "regs", "dirmap"; + clocks = <&clkwizard 0>, <&clkwizard 1>, <&clkc 15>; + clock-names = "send_clk", "send_dly_clk", "ps_clk"; + #address-cells = <1>; + #size-cells = <0>; + + flash@0 { + compatible = "spi-nand"; + reg = <0>; + nand-ecc-engine = <&ecc_engine0>; + }; + }; + + ecc_engine0: ecc@43c40000 { + compatible = "mxicy,nand-ecc-engine-rev3"; + reg = <0x43c40000 0x10000>; + }; + + - | + /* Pipelined configuration */ + spi_controller1: spi@43c30000 { + compatible = "mxicy,mx25f0a-spi"; + reg = <0x43c30000 0x10000>, <0xa0000000 0x4000000>; + reg-names = "regs", "dirmap"; + clocks = <&clkwizard 0>, <&clkwizard 1>, <&clkc 15>; + clock-names = "send_clk", "send_dly_clk", "ps_clk"; + #address-cells = <1>; + #size-cells = <0>; + nand-ecc-engine = <&ecc_engine1>; + + flash@0 { + compatible = "spi-nand"; + reg = <0>; + nand-ecc-engine = <&spi_controller1>; + }; + }; + + ecc_engine1: ecc@43c40000 { + compatible = "mxicy,nand-ecc-engine-rev3"; + reg = <0x43c40000 0x10000>; + };