From patchwork Sun Mar 10 19:20:59 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Jonathan_Neusch=C3=A4fer?= X-Patchwork-Id: 779396 Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7098539FFB; Sun, 10 Mar 2024 19:22:13 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.17.20 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710098535; cv=none; b=Dydgeb9VImAcfzgypIUx4LlkPC4N6SS4NX0LyQuU0SICzYMbYdFSlU8Q3enqmer3elYW+X8QX3Fh3wUb7ysmbZq5GtlVa1lKPby1sgaMzai0ulz4s97QCXqAdKcfmFy2xKTkKZFUeLWTv1j73FqYvofaam5DDJUENxjvVbrmQoQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1710098535; c=relaxed/simple; bh=6NrF/w77Op3jkfAxtCcQ+TosCvo0V+DYPJY4uCHzAtI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=WtB2EC/sEmaMeg2plsIThgGb0+uc6o8VWl51PdUHtrhO2rtmosONBKSPaaDMM/Z+ZM9DU46iRM3i/j8O3LEcvI7r6EShYn+sfvnPIgIEoQJQGQBfz1y6GLhfC6TXLNswF+nWLf5TrRRwZnvutZMSd6Fm0Xwfcs+4YXoV5cSCBlU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.net; spf=pass smtp.mailfrom=gmx.net; dkim=pass (2048-bit key) header.d=gmx.net header.i=j.neuschaefer@gmx.net header.b=el0RgnmE; arc=none smtp.client-ip=212.227.17.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmx.net Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmx.net header.i=j.neuschaefer@gmx.net header.b="el0RgnmE" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=s31663417; t=1710098501; x=1710703301; i=j.neuschaefer@gmx.net; bh=6NrF/w77Op3jkfAxtCcQ+TosCvo0V+DYPJY4uCHzAtI=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To: References; b=el0RgnmEBLGVTPuV8h4c+rawNSxGTjZE3tV1RWq7zFI+zuuUxz5bPM9Resb3E7G2 1dkMmEGgXiB1r/lFASvolu0s8tKOx6uoFa8Po8NEXHNivz5vc8C1T9KdFOU+jBn6P sYEuxLJDFt8qN0XizCgtu3TNpN7lfe0PGdElxmf5zzcUhuWFAcbC+NptEAOfcm34O MucarEKG0eFmKqoEUtg3+YH069EeBAc8c0diljMMdpxREKORCCU9UZiH6C4UF2LJy f8/cNq+6iWQznCDrgeIxZtfcuBHkLgOVen4g48R5CoRsC4XDskq2fCwiQrgOo60TI e9HCtsLQQRaGO8G/Gw== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from probook ([78.35.216.168]) by mail.gmx.net (mrgmx104 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MUXpQ-1rJ6Qf1PKi-00QPqP; Sun, 10 Mar 2024 20:21:41 +0100 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 , Christophe JAILLET , Conor Dooley , Krzysztof Kozlowski Subject: [PATCH v10 1/4] dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller Date: Sun, 10 Mar 2024 20:20:59 +0100 Message-ID: <20240310192108.2747084-2-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240310192108.2747084-1-j.neuschaefer@gmx.net> References: <20240310192108.2747084-1-j.neuschaefer@gmx.net> Precedence: bulk X-Mailing-List: linux-watchdog@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Provags-ID: V03:K1:Fw14egUNoBom9w1dGp3wFN0nblRuKgnnItHG+gE0CBjhqzOwVYL 8rhmhsjwuFftEDklSccS7sU+B5EPg87KzmsE1L+JDFywVJ1hVra4oASOfnOwWFkAl7MXGX6 5NKVWFOKC2HI89sdOtSAX8HAh6RhYmzu+/okscjCJPy1kJjX+InDYIkVQDq1q7g0B1lNLai J/AC8ocnd7G/q31bJjHkA== X-Spam-Flag: NO UI-OutboundReport: notjunk:1;M01:P0:opuMrp+Apzg=;3lP/qhKFERKfRPkGJXwMP4HvzyC 3sZYaii7KWf+WcXuG+AYNpOAI6cdP0mz3UhHBIGdLAKph1CHAFpslAASAYXAw1D5nr0BYz5bx xHO+INPllMpKePoBd9461vMRHBcQCiRrX1mrgSN67i6mw5EuMnGnLl5dtN5bknj0Xb1o0D1hA zOhbGB3aCoDqlLQjoCBQF+KHrAqIdL+YSpfB7hxsH3b1MNRkgmxF0ElaCeefqzNMt4NFkMV2s kGO9J9VrgczZIovcMssp+QIS5GulA7ywXgO+35xDRb6+QLL22WgXP87VNQ10AzUSOlHJXO/uu VTeDFACW67xL+rpYzJw7zlLPaFCiH3xO9kITPz17Z6bkjwwFAHf2b4PpQBpS0fAIoDT615XzA mXuFH9hnvIQOA5lY2gXhY9f2kf3vUE+jsLCakFmQXKUakOfH+OgQP58H1oDEWe63cfaI0+bqJ CoVg6rCyPzZmc7GKpecn+gvJIkiZ/6AmUmgSeai+p24vf9Ffcno9kCe1n2sSPo64OciwQfYtJ RbAN4JlyAZCp9ZaYMfIUJ0XT2q/uMq9BbxgwP8EDtjr269doStCEYqdpYJFWt2khwy/cdY3cf zWYHrGcTx4WnnB5c/s1BP+b9U0iPdUBBA+kf1BID+cP/syQDyuFUEiW5afykVQ1Kq8/2nkvES vrWoNxq4c6n8PKcn/yXkHZptcHnS8kDJx8mGNpF1r7C6piK/nqN0r/at0l9MT5tYYvkw46nPJ uWzZF+D+t8+jBV+LfRLR1kTtc9pGhRLNqWxMCpzOpTXCwW9A4Aj/+vB4Zcp8KEaFcnfuUk6UT huirk3v4y98zwTUL0alwHxgymiPLOb11GpCmIn9De25HU= 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 Reviewed-by: Krzysztof Kozlowski --- v10: - no changes v9: - Remove clock-output-names in example, because it's now unnecessary due to driver improvements v5-v8: - no changes v4: - https://lore.kernel.org/lkml/20220610072141.347795-4-j.neuschaefer@gmx.net/ - Add R-b tag v3: - Change clock-output-names and clock-names from "refclk" to "ref", suggested by Krzysztof Kozlowski v2: - https://lore.kernel.org/lkml/20220429172030.398011-5-j.neuschaefer@gmx.net/ - 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 | 65 ++++++++++++++++++ .../dt-bindings/clock/nuvoton,wpcm450-clk.h | 67 +++++++++++++++++++ 2 files changed, 132 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml create mode 100644 include/dt-bindings/clock/nuvoton,wpcm450-clk.h -- 2.43.0 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 00000000000000..93521cf68a040f --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nuvoton,wpcm450-clk.yaml @@ -0,0 +1,65 @@ +# 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: ref + + '#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-frequency = <48000000>; + #clock-cells = <0>; + }; + + clk: clock-controller@b0000200 { + reg = <0xb0000200 0x100>; + compatible = "nuvoton,wpcm450-clk"; + clocks = <&refclk>; + clock-names = "ref"; + #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 00000000000000..86e1c895921b71 --- /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 */