From patchwork Tue Jun 9 07:40:18 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yifeng Zhao X-Patchwork-Id: 199379 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.7 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E0414C433E0 for ; Tue, 9 Jun 2020 07:48:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C1E0520812 for ; Tue, 9 Jun 2020 07:48:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726116AbgFIHsE (ORCPT ); Tue, 9 Jun 2020 03:48:04 -0400 Received: from lucky1.263xmail.com ([211.157.147.133]:55638 "EHLO lucky1.263xmail.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727061AbgFIHsE (ORCPT ); Tue, 9 Jun 2020 03:48:04 -0400 Received: from localhost (unknown [192.168.167.235]) by lucky1.263xmail.com (Postfix) with ESMTP id 0E980C3810; Tue, 9 Jun 2020 15:40:29 +0800 (CST) X-MAIL-GRAY: 0 X-MAIL-DELIVERY: 1 X-ADDR-CHECKED4: 1 X-ANTISPAM-LEVEL: 2 X-ABS-CHECKED: 0 Received: from ubuntu18.lan (unknown [58.22.7.114]) by smtp.263.net (postfix) whith ESMTP id P31250T139912844142336S1591688422511107_; Tue, 09 Jun 2020 15:40:29 +0800 (CST) X-IP-DOMAINF: 1 X-UNIQUE-TAG: X-RL-SENDER: yifeng.zhao@rock-chips.com X-SENDER: zyf@rock-chips.com X-LOGIN-NAME: yifeng.zhao@rock-chips.com X-FST-TO: miquel.raynal@bootlin.com X-SENDER-IP: 58.22.7.114 X-ATTACHMENT-NUM: 0 X-DNS-TYPE: 0 X-System-Flag: 0 From: Yifeng Zhao To: miquel.raynal@bootlin.com, richard@nod.at, vigneshr@ti.com, robh+dt@kernel.org Cc: devicetree@vger.kernel.org, linux-mtd@lists.infradead.org, heiko@sntech.de, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Yifeng Zhao Subject: [PATCH v6 1/8] dt-bindings: mtd: Describe Rockchip RK3xxx NAND flash controller Date: Tue, 9 Jun 2020 15:40:18 +0800 Message-Id: <20200609074020.23860-2-yifeng.zhao@rock-chips.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20200609074020.23860-1-yifeng.zhao@rock-chips.com> References: <20200609074020.23860-1-yifeng.zhao@rock-chips.com> Sender: devicetree-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Documentation support for Rockchip RK3xxx NAND flash controllers Signed-off-by: Yifeng Zhao --- Changes in v6: - Fix some wrong define - Modified the definition of compatible Changes in v5: - Fix some wrong define - Add boot-medium define - Remove some compatible define Changes in v4: - The compatible define with rkxx_nfc - Add assigned-clocks - Fix some wrong define Changes in v3: - Change the title for the dt-bindings Changes in v2: None .../mtd/rockchip,nand-controller.yaml | 154 ++++++++++++++++++ 1 file changed, 154 insertions(+) create mode 100644 Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml diff --git a/Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml b/Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml new file mode 100644 index 000000000000..f753fe8248aa --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/rockchip,nand-controller.yaml @@ -0,0 +1,154 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/rockchip,nand-controller.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Rockchip SoCs NAND FLASH Controller (NFC) + +allOf: + - $ref: "nand-controller.yaml#" + +maintainers: + - Heiko Stuebner + +properties: + compatible: + oneOf: + - const: rockchip,px30-nfc + - const: rockchip,rk2928-nfc + - const: rockchip,rv1108-nfc + - items: + - const: rockchip,rk3326-nfc + - const: rockchip,px30-nfc + - items: + - const: rockchip,rk3036-nfc + - const: rockchip,rk2928-nfc + - items: + - const: rockchip,rk3308-nfc + - const: rockchip,rv1108-nfc + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + minItems: 1 + items: + - description: Bus Clock + - description: Module Clock + + clock-names: + minItems: 1 + items: + - const: ahb + - const: nfc + + assigned-clocks: + maxItems: 1 + + assigned-clock-rates: + maxItems: 1 + + pinctrl-0: + maxItems: 1 + + pinctrl-names: + const: default + + power-domains: + maxItems: 1 + +patternProperties: + "^nand@[a-f0-9]$": + type: object + properties: + reg: + minimum: 0 + maximum: 7 + + nand-ecc-mode: + const: hw + + nand-ecc-step-size: + const: 1024 + + nand-ecc-strength: + enum: [16, 24, 40, 60, 70] + description: + The ECC configurations that can be supported are as follows. + - NFCv900(PX30 and RK3326) support ecc strength 16, 40, 60 and 70. + - NFCv600(RK3066 and RK2928) support ecc strength 16, 24, 40 and 60. + - NFCv622(RK3036 and RK3128) support ecc strength 16, 24, 40 and 60. + - NFCv800(RK3308 and RV1108) support ecc strength 16. + + nand-bus-width: + const: 8 + + rockchip,boot-blks: + minimum: 2 + default: 16 + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + description: + The NFC driver need this information to select ECC + algorithms supported by the BOOTROM. + Only used in combination with 'nand-is-boot-medium'. + + rockchip,boot-ecc-strength: + enum: [16, 24, 40, 60, 70] + allOf: + - $ref: /schemas/types.yaml#/definitions/uint32 + description: + If specified it indicates that a different BCH/ECC setting is + supported by the BOOTROM. + - NFCv900(PX30 and RK3326) support ecc strength 16 and 70. + - NFCv600(RK3066 and RK2928) support ecc strength 16, 24, 40 and 60. + - NFCv622(RK3036 and RK3128) support ecc strength 16, 24, 40 and 60. + - NFCv800(RK3308 and RV1108) support ecc strength 16. + Only used in combination with 'nand-is-boot-medium'. + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + +examples: + - | + #include + #include + nfc: nand-controller@ff4b0000 { + compatible = "rockchip,rk3308-nfc", + "rockchip,rv1108-nfc"; + reg = <0x0 0xff4b0000 0x0 0x4000>; + interrupts = ; + clocks = <&cru HCLK_NANDC>, <&cru SCLK_NANDC>; + clock-names = "ahb", "nfc"; + assigned-clocks = <&clks SCLK_NANDC>; + assigned-clock-rates = <150000000>; + + pinctrl-0 = <&flash_ale &flash_bus8 &flash_cle &flash_csn0 + &flash_rdn &flash_rdy &flash_wrn>; + pinctrl-names = "default"; + + #address-cells = <1>; + #size-cells = <0>; + + nand@0 { + reg = <0>; + label = "rk-nand"; + nand-bus-width = <8>; + nand-ecc-mode = "hw"; + nand-ecc-step-size = <1024>; + nand-ecc-strength = <16>; + nand-is-boot-medium; + rockchip,boot-blks = <8>; + rockchip,boot-ecc-strength = <16>; + }; + }; + +...