From patchwork Sun May 8 19:43:29 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: 571201 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 AEB6BC3527C for ; Sun, 8 May 2022 19:44:29 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231848AbiEHTsT (ORCPT ); Sun, 8 May 2022 15:48:19 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36156 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231524AbiEHTsO (ORCPT ); Sun, 8 May 2022 15:48:14 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.17.22]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2DFF3B87B; Sun, 8 May 2022 12:44:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=badeba3b8450; t=1652039031; bh=cVIo2y04SnJPxviT81wXrXj4/hncq3oQghRYaLvheWw=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=BsbbGe7O8H1fXGsZQUVAOfsz/cANTh74gyGsuekiNMaC5m6j3S25Dl60GidDvmFdp A72HpsBZgFnT74oULRy9xOpExAcvKuWGAjD1s5aNqcz7/cXvYBg4TiSKeUvIeloXFs DgCC/PXikYCESZz8U8sN0CA5jqAW+KNPGARr+Q8E= X-UI-Sender-Class: 01bb95c1-4bf8-414a-932a-4f6e2808ef9c Received: from longitude ([37.201.215.103]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MEm27-1nZDoa1Sv5-00GJfz; Sun, 08 May 2022 21:43:51 +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 Subject: [PATCH v3 4/7] dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller Date: Sun, 8 May 2022 21:43:29 +0200 Message-Id: <20220508194333.2170161-5-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220508194333.2170161-1-j.neuschaefer@gmx.net> References: <20220508194333.2170161-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:x0W7vH7QZ+HL+wxKDa4ZeKQqLWBOeq5uBVM+JKwP9VO9iVhbmIB tKKyNSd3lKZLMW8+kbKfyUQIF7JVxjnYP3u2axzi03CjKSdJo9WULQ8SWlaqGKVzcYvHQE+ oswdlr2sZLCwzDG2EVR2EVaadhd8LBtttvSPYXB8U2S9dztu+qjLRchJyYmZIVhP+nM2Xyh r2eNJJA9wCk9yaJeMg4QQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:k9PwBt0AZnw=:R6ZVN4PsqfDOc7pT9fbOxo SSkddudSghnmvtDG/oL6e2O8JlKyqpQ04f7wHCUfoj78bJulhiK97tlktmFiKKVHwMgv3BT9z NmGF1I2MY486F/ijhlLDimdB4qwhXugQSrNYsPNnNeJjcYYVaE7VomsnzOpRGSQCFnz4ShbNk fyq+EWs14oyzf+KS7gSHEpLEtD2/M72H2kEtUkEvTXgbMvzDDnFjNSiAG8bmIGQ8Mn1rDiD03 DkgUSHkQpJmm42wRNsdgPfrRGzNwfhljaR0dh/nqe9wYKxCA2Qm3Ew/u+9WHAiy9DGdGnUu1y DlBwHY3NbCut/PU6LMudCue43ayzvCLIgsdCiJPH2MuS9E2hULDvBEF30A8JB8MEYqj4T7wGl hkxki/tNaYtrFGheJEHSxh/IKmqFWz5CAPgD+nam8nPVwX6+qrJ4JKa096UYQtDa7rt9D2YcZ RxvvP36QHkFfV+KP4YVjs0s4ohSiucUVgLx3C6vWYcuvYH6l9tS1/0dqpSwS+WuCoFH7QzZZg /3+D8prJnxERA1j2eTlpihm+SPHRA0NBp78duSRTTyzyTgoogi20vmnIOm9UteDlih9QoLlj8 j8ea9s5gGjCiA7veIVsxEyGMu64MRzLpJ4VPJ/s+yLZAUNPUMEYPQS8zdRQEzgcI3OXOd05LC NBOTdkE0h3AXB8e0pcKJrT4S+QMmbMdYXPyxLZi622ZYfLW9xSGmcX5nHWuqlEwWV5r593l7a BzblKc3SYhT+GWVlWvYw+I9JerbiDZBUGFj0S5IPVefgIkhUGpEnFHehRB7QCsrUFH28vfSHP bk1Bo/G2JaufCqVKcF3MRX0s+VpTJeKhNCGmQCcygc+sQfAQOK4TiiUzLFdlq3v9LYKDZlQdD 4nixZzSP61HqntLrlVucs6VbGYAue5HSYj0+j5BY6BgqJ0VIJMeRY7VJz9LxDfFJJY/NXtYNa 1j4gk5VQpKoKKCMoZj0Def0vQzrPyl4Wy0ueftXNwJ82te09uKmYKNz8rU5mhZkqIj05XoXKh FMwzBoq7z12q/X9a3iPWVToZdVzFl9emCfglBF9gqzF1NygfBOppZEr52oAgT+VK1iMOZbIOV QsDBLYtftrpme4= 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 --- 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 -- 2.35.1 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..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 */