From patchwork Fri Apr 29 17:20:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?J=2E_Neusch=C3=A4fer?= X-Patchwork-Id: 567683 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 00A77C4321E for ; Fri, 29 Apr 2022 17:21:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1379602AbiD2RYx (ORCPT ); Fri, 29 Apr 2022 13:24:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:53816 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1379561AbiD2RYn (ORCPT ); Fri, 29 Apr 2022 13:24:43 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.15.15]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 5851953E29; Fri, 29 Apr 2022 10:21:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1651252847; bh=Z1/WCslgP8Wu/YmkLh8+6LMQRMiTIAjbeV6cgUezSJc=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=fIRtFzawmsaX6o+ddoVPLzUuLxHc6cxoqE5L4Ot69i90OAnPCIm6fDKERamVqglvC FhSeVsDIegW5T7aRLtNfN1Dv2Ve7Cd/fCZ+uvOjAdRi6wuSW9IKpVBYaxvHpI3gIjf kgnUxUWCRrAkn8fSh8BO8imx4zSZ2vTnpVc4Zp+M= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([37.201.215.103]) by mail.gmx.net (mrgmx004 [212.227.17.190]) with ESMTPSA (Nemesis) id 1N7R1T-1nusEd3qwv-017jjP; Fri, 29 Apr 2022 19:20:47 +0200 From: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= To: linux-clk@vger.kernel.org, openbmc@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, linux-watchdog@vger.kernel.org, devicetree@vger.kernel.org, =?utf-8?q?Jonathan_Neusch=C3=A4fer?= , Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Avi Fishman , Tomer Maimon , Tali Perry , Patrick Venture , Nancy Yuen , Benjamin Fair , Daniel Lezcano , Thomas Gleixner , Philipp Zabel , Wim Van Sebroeck , Guenter Roeck Subject: [PATCH v2 4/7] dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller Date: Fri, 29 Apr 2022 19:20:27 +0200 Message-Id: <20220429172030.398011-5-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220429172030.398011-1-j.neuschaefer@gmx.net> References: <20220429172030.398011-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:FtwV/jWJy43+n4llwQ3Sij16mE4Ezw/LQCEHbWDDWomdDPeXN0W gWHIQ2vodYBekKau1Gcs4lGe15j7SSyRB7plaBkNyN4lXlYhN72apLn8onSAoJWlphjkx33 ufeP9wbjSAepDspynVTGPM09cV2EYFChmgjd+3FDL2B9JQcW8mwNLjDhIBn59SlcNOVB0EY D6FTt9A/39yDlM1SLXPsQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:etFaIwB0Row=:FOazck2oRSDPJD3vGjwi1h Ep2ZieZ4k3EtjmCJ3+DtHg11ZAaW47kyxMVF7XQIFZOb1nvckWZVyUNeKH+MoG852VZJNYrid F1eqYGSu2+tQsXqXb38SUnp3qnVxWWqxPH9vIct5TTOaRhyRE1rXriKdnLCb6EXk6A+YhU5dX yjils8QyaCc/2EBN/MXeDIdwehVryorvQj5u+NJdw9IXEjrISc9csU4H5l7C90Xq73pZxvR8S g0I2vAiMWZogdYGh5RcBKX7w5g9dkTJIp3pKaLdnUCPh4/YP9bj696qU+n4Tj9611NP9zdDRu GphRgtPtP4vJzqh7ND2EQ7URfZoLNK3rjbe8Ntgq7xqDRMgAvIHwh1qVzmMDa0X01TQxBHswB ekLCwyehyyYQX2JOeIJ6+gSY/JD4AitKy5mmk7gaxXgu8Vm2kVjZniHr80O1utoXk0uZWxZM7 8ZttWUKd8am2DxTi7Gv6rPFTAVYz3niQBreJkI2NjXTiSjdHPyS1pD2XXWWR29g+8Ve1jEUSu CkRrBUovuWE969vNmQMKOG8OM2U1JLtHhz/uASSK5kzexGCUoGdjAdfJ1QB2pu9N+2kA5qbeG l9qcfn2aYEcXUiKtlk3sapFMq/yDTwHtubN3jm2UOY2SFCKUNc4HDhS/+6o4etaH5lleeJ078 OHtEIJtAOBqyPWXCovDun1beDMH9/hPuDtbu4STnWBYX7ykBGm+4T3/knnh5L7TaJ/7xTRNrU mjQDOJDvHMzIT4cCppW2A3kh6VSYl/MRZ20Ibl8qaitxG0v7g8oZWiB42zJ2XP3aPUsA2IC4U EwczzHeaxXdWdtua2howGf5ii5Rb3ltf6X3B+5A9el/4tK6oUrD4UebJR/J3mkILpevL0Jjpe tfRgG8L2QDrtCCcr0Crz6LPQr1VALEJEvGKpHnODi4q3mE2KSL9aZXm2umY9+xDrMM7TXAcW6 at8c1wzRJ1h+eGltgE84TYNzyb8qyrRMo91iffifMyNopEdURXR3Qq4vP1spCRH5tDI9WB2At R8MiuYnbcimva8t2+VdZ/5ProvdjHhY1v7JreGwtIfFiOSf9KaOPymJ0UQ6SEYeH/0zI5qin3 KN8tTgtUoYwJOM= Precedence: bulk List-ID: X-Mailing-List: linux-watchdog@vger.kernel.org The Nuvoton WPCM450 SoC has a combined clock and reset controller. Add a devicetree binding for it, as well as definitions for the bit numbers used by it. Signed-off-by: Jonathan Neuschäfer --- v2: - Various improvements, suggested by Krzysztof Kozlowski v1: - https://lore.kernel.org/lkml/20220422183012.444674-5-j.neuschaefer@gmx.net/ --- .../bindings/clock/nuvoton,wpcm450-clk.yaml | 66 ++++++++++++++++++ .../dt-bindings/clock/nuvoton,wpcm450-clk.h | 67 +++++++++++++++++++ 2 files changed, 133 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml create mode 100644 include/dt-bindings/clock/nuvoton,wpcm450-clk.h -- 2.35.1 diff --git a/Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml b/Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml new file mode 100644 index 0000000000000..3ed3e40e39637 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml @@ -0,0 +1,66 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/nuvoton,wpcm450-clk.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Nuvoton WPCM450 clock controller + +maintainers: + - Jonathan Neuschäfer + +description: + The clock controller of the Nuvoton WPCM450 SoC supplies clocks and resets to + the rest of the chip. + +properties: + compatible: + const: nuvoton,wpcm450-clk + + reg: + maxItems: 1 + + clocks: + items: + - description: Reference clock oscillator (should be 48 MHz) + + clock-names: + items: + - const: refclk + + '#clock-cells': + const: 1 + + '#reset-cells': + const: 1 + +additionalProperties: false + +required: + - compatible + - reg + - clocks + - clock-names + - '#clock-cells' + +examples: + - | + #include + #include + + refclk: clock-48mhz { + /* 48 MHz reference oscillator */ + compatible = "fixed-clock"; + clock-output-names = "refclk"; + clock-frequency = <48000000>; + #clock-cells = <0>; + }; + + clk: clock-controller@b0000200 { + reg = <0xb0000200 0x100>; + compatible = "nuvoton,wpcm450-clk"; + clocks = <&refclk>; + clock-names = "refclk"; + #clock-cells = <1>; + #reset-cells = <1>; + }; diff --git a/include/dt-bindings/clock/nuvoton,wpcm450-clk.h b/include/dt-bindings/clock/nuvoton,wpcm450-clk.h new file mode 100644 index 0000000000000..86e1c895921b7 --- /dev/null +++ b/include/dt-bindings/clock/nuvoton,wpcm450-clk.h @@ -0,0 +1,67 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ + +#ifndef _DT_BINDINGS_CLOCK_NUVOTON_WPCM450_CLK_H +#define _DT_BINDINGS_CLOCK_NUVOTON_WPCM450_CLK_H + +/* Clocks based on CLKEN bits */ +#define WPCM450_CLK_FIU 0 +#define WPCM450_CLK_XBUS 1 +#define WPCM450_CLK_KCS 2 +#define WPCM450_CLK_SHM 4 +#define WPCM450_CLK_USB1 5 +#define WPCM450_CLK_EMC0 6 +#define WPCM450_CLK_EMC1 7 +#define WPCM450_CLK_USB0 8 +#define WPCM450_CLK_PECI 9 +#define WPCM450_CLK_AES 10 +#define WPCM450_CLK_UART0 11 +#define WPCM450_CLK_UART1 12 +#define WPCM450_CLK_SMB2 13 +#define WPCM450_CLK_SMB3 14 +#define WPCM450_CLK_SMB4 15 +#define WPCM450_CLK_SMB5 16 +#define WPCM450_CLK_HUART 17 +#define WPCM450_CLK_PWM 18 +#define WPCM450_CLK_TIMER0 19 +#define WPCM450_CLK_TIMER1 20 +#define WPCM450_CLK_TIMER2 21 +#define WPCM450_CLK_TIMER3 22 +#define WPCM450_CLK_TIMER4 23 +#define WPCM450_CLK_MFT0 24 +#define WPCM450_CLK_MFT1 25 +#define WPCM450_CLK_WDT 26 +#define WPCM450_CLK_ADC 27 +#define WPCM450_CLK_SDIO 28 +#define WPCM450_CLK_SSPI 29 +#define WPCM450_CLK_SMB0 30 +#define WPCM450_CLK_SMB1 31 + +/* Other clocks */ +#define WPCM450_CLK_USBPHY 32 + +#define WPCM450_NUM_CLKS 33 + +/* Resets based on IPSRST bits */ +#define WPCM450_RESET_FIU 0 +#define WPCM450_RESET_EMC0 6 +#define WPCM450_RESET_EMC1 7 +#define WPCM450_RESET_USB0 8 +#define WPCM450_RESET_USB1 9 +#define WPCM450_RESET_AES_PECI 10 +#define WPCM450_RESET_UART 11 +#define WPCM450_RESET_MC 12 +#define WPCM450_RESET_SMB2 13 +#define WPCM450_RESET_SMB3 14 +#define WPCM450_RESET_SMB4 15 +#define WPCM450_RESET_SMB5 16 +#define WPCM450_RESET_PWM 18 +#define WPCM450_RESET_TIMER 19 +#define WPCM450_RESET_ADC 27 +#define WPCM450_RESET_SDIO 28 +#define WPCM450_RESET_SSPI 29 +#define WPCM450_RESET_SMB0 30 +#define WPCM450_RESET_SMB1 31 + +#define WPCM450_NUM_RESETS 32 + +#endif /* _DT_BINDINGS_CLOCK_NUVOTON_WPCM450_CLK_H */