From patchwork Sat Apr 22 22:02:39 2023 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: 13221129 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 D3C90C77B7D for ; Sat, 22 Apr 2023 22:03:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229801AbjDVWD1 (ORCPT ); Sat, 22 Apr 2023 18:03:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36366 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229500AbjDVWDZ (ORCPT ); Sat, 22 Apr 2023 18:03:25 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.15.19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7234D268B; Sat, 22 Apr 2023 15:03:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=s31663417; t=1682200971; i=j.neuschaefer@gmx.net; bh=F1Grkj953zwVKs4nIxZ4Yp9h3/qApBD4MDny8Zz+RTo=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=gDoJTKn6QFZO90j/ALq8+QRTQQEMqpfo+1dOU6XRCPuWzllwKOR3llkrTbqVf3LFO NXhq2WakSv3+uHMSUfmI1PalAcD58rznc5LmlIUUiaBKxLN5orVuNE2+Em160FDyXq 8iWRxG0hLFvhqvOf4ybLmDlNXVL0PIGpyrfRo/F2JN9NsYgaMMysgrVyroZICnDeiR pNalOs06YBWSEMEpgl86rCfM2a5+ZNmjzWl6YYgi1Xd56flSxRmmDRGOXhGZbFih0c 0WPWZi+BYqF3U0uAbNTSvFqgCOk1eAimmVNxaNJWSAert4WKVybjFFE000ouXermoi Vyq09LH2MDFBA== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from probook ([95.223.44.193]) by mail.gmx.net (mrgmx005 [212.227.17.190]) with ESMTPSA (Nemesis) id 1MqJm5-1qdihs19Ix-00nO4P; Sun, 23 Apr 2023 00:02:51 +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 , Christophe JAILLET , Krzysztof Kozlowski , Krzysztof Kozlowski Subject: [PATCH v7 1/2] dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller Date: Sun, 23 Apr 2023 00:02:39 +0200 Message-Id: <20230422220240.322572-2-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230422220240.322572-1-j.neuschaefer@gmx.net> References: <20230422220240.322572-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:OWdR7VJh/vvHcNCmD6tkDp+Xp8F53Yg45BxhzOQS5QprEZ5hQ9J YxmPCuY6uHSzjXLXY5Gr4lCJLnnvhHbXPBavk58U8GljhfArPkTZFF8JjkcREdwmmRjPxOc DeED1/vfaRVssSDoWmE/d8Kjeft6mMHpoaz4C5kbPgwA6JDkXvj/V4I12tF1WSDUoKndArw yVvpKyZaOS3fg0RDNn+Rw== UI-OutboundReport: notjunk:1;M01:P0:Z7HnnnMQbW0=;8AVzbt2BnHLpi+0qyT2mOR4iRm4 NU6qaZOPI636NHcxxZ6DPIu5YP+dW3Mc6PurhZsxrO0NtSXIv4VHDMZdOJBHg4ZQ1rRc/L1P8 7xG8DA++bSuCPs1U0wpdgz7//uVthn6E3Hi6bDpUw0VRYDUO2f8+alw4D1K/Y4wEFVGuB7EkI 5yTc7phD9uZLkwStR+j9g88racV24r7e+czkGK7XimvgcTiR4SBEtG5aim51oBKql8SsCqiTL FXZIo5Fufu1byy88449RgYxlalAIzxQbfg9ffmv/cKgguk7+uwxzxLRfB5ZVtJsJT+44FjmNw gESz8yXoPSNLUQag570ZYcjpZ2/dmKQB57QeTODDOu1Djyk9t6v6XcFPslfJJVgxT2wdk722P Zuv8bi/Qpm6D7sWZqk0721dRdeKlX46OEDZhwmeEGj0OXDzBAxgh8vgZs1PZkOJ44aSxWuC64 dWwKqAG5y5vnbZJFRJlmsUmYIvsaXTi6ORqJoO5oedHjQtlH41UndlKGvX+djIotGgyi5d68q VDhT5nruagDA9WYuFbr5AnYvgGWXBjEm9q0SRzfI/255Evsxh4JrcSHwrxTXvAjqrwOh8ZjIO +5auGGooUKJEnwnhLgGOeSLHGdu4VShqN+2BsTzM0hy8vwgS6UNdKGKq820JLShKymn56WRed +UlreX85zUWjpoJaycpM0WVxLzBxqjp4SJdc9dX/tA/u7UzmGZH15H2rgvFB5RMOEBy3Ap44s mwgxSfhDfbtRDl1WxXkWE9KxAzrYhC3u+BG4X6sq4iquektV79KC8I4DUiPmYbAbv9a3pHkyC Ii91Jq7Hsk8tivI6LivfUkFYy5e36L79xAoyAywP9/+vPcwt5tM5W1b/BoUQRoZbeVL3/D78B pMVdGGZkr8SUubua5uATrElAyBNcIB3NTszDmjXiR9I4lx/MdjETvi9WOSracaNGf3A9IjVVd UcP7TDB0hCZftWmWqQfiPiXghXA= 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 Reviewed-by: Krzysztof Kozlowski --- v5-v7: - 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 | 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 -- 2.39.2 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..525024a58df4c --- /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: 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-output-names = "ref"; + 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 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 */