From patchwork Fri Nov 4 16:18:47 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: 13032295 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 EF8E8C433FE for ; Fri, 4 Nov 2022 16:19:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232002AbiKDQTr (ORCPT ); Fri, 4 Nov 2022 12:19:47 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231855AbiKDQTn (ORCPT ); Fri, 4 Nov 2022 12:19:43 -0400 Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A18E42D1C8; Fri, 4 Nov 2022 09:19:41 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=gmx.net; s=s31663417; t=1667578747; bh=kK+KEXKQcLOuTuT8IaDPuSfjwdIMIAIJT/BtBjqbAK4=; h=X-UI-Sender-Class:From:To:Cc:Subject:Date:In-Reply-To:References; b=ddRWtqOtsyOr/kez7rLUL/SHpm9ACTax43TTdZXaq8uTD9MHzIayT43Q3sASHFE/5 EybIU/4DII1l/UPv2DwhOCmH/lS4gjJftaOCdrm0fyorkCekIYQBT+6APHqIrusHCG FtL9JznpbC1XnWY/aczi3/wcYjgjWDK5sVfzWiwS+1hVf8rUNc6bARhGakJJ/Q5R3a F2tW8BQTU/chDFhh9J1dslKgTEKZWNH/05sS8dV4Y8woLqW024ikcDxFShSmKZpxCo sa3LDGB7awAOExnVhtYUyVUEJe9bRTH5wG8hchgLeOPCWrtzZvZ0a15Yv1vMC07lnL +7jKU2yeRmkMg== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from probook ([95.223.44.31]) by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1MUXtY-1oQcot1aBk-00QQdk; Fri, 04 Nov 2022 17:19:07 +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 , Krzysztof Kozlowski , Krzysztof Kozlowski Subject: [PATCH v5 3/6] dt-bindings: clock: Add Nuvoton WPCM450 clock/reset controller Date: Fri, 4 Nov 2022 17:18:47 +0100 Message-Id: <20221104161850.2889894-4-j.neuschaefer@gmx.net> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221104161850.2889894-1-j.neuschaefer@gmx.net> References: <20221104161850.2889894-1-j.neuschaefer@gmx.net> MIME-Version: 1.0 X-Provags-ID: V03:K1:Q/MRyQzs4UmAld8Aqho5hQzCgQujH0HLFpkNasG2BgxnN/PLjA7 4EM0Ovl4uGOM9MLk4YhIcyfw1+S7s5YyAxsKxQhHCSG0qlLr9vv89exHE6mq24z/8uqM1wS yc8Q9SogcBP882BHhubmb/8NZZig+uT9SBKlWPJ+yqPMzTMTojjhNo4xankKs+ILuBAas0G ftNty+6PgZbodl8F8epHg== UI-OutboundReport: notjunk:1;M01:P0:F05KtP1a8bw=;zprdSDIHjVY9+z5ZfevBy1dfzUI RULmQQaUeJ+JS2rHOAGJXxSRZ+43XUlNX5gN7I++B1hQbHwppQ4TJ2e1Bqe+7zKXI29ngck3M JtwqzuBfAiZh+/OMvMZARhRVOIjWrVnRPgRlwnTDPc230MfLLGgObsH/YJ53Y7DLoKBwE5MA6 oUPo80XViKP3mL6IjsHQxQodQk2U8IpqIbYSaB6ZjhDLKfky7hgm0IDmoS+MJydQJ4OzsZ0xH HffpQKrUDRTWWE7GhcCutEruJg1nA3hioYivWjzjHHtuIuzLl6QjB1Hj7/VNxKhgn1fE19p6D KvFk3bTViCRTCbmZomuw1ol4TFcshWnaMcIUHcFAO4yhB6j0g/OWs96iIYqgaYhseUKolAuca 2rVsZHlJGpe9RlGOuo9pwd2W9ydg+3heZLUkdF/Sbz71lBUZziobxnDjmvINzvPPeXlFkxWmp b67aNiZgEfJu9y7L9cdBZo8ztEtL4fJwk4HG/R/9GWxn8QfhJucGwcNJ1USkCyr+ei15/ef/q vHoxn4u/aeuc3d+Hcftb22iY2ZwsdZzZ8pXQIMAIyLkyr25YESQZ5HE7dYHPHltFq+/P5b2tG wZSds5CPSlA9XDNHYMpjwMb0kL2I1/rNswmrJb7vcLr7izZnJUpEeJi2CpLJiNaBWXaUuShez LtzFzblkd7oebF93Zg9MrbwBnZjc7iTrBaMjcXm1o2Kkofglfs1xzAkVEB/IwLkEEg0SbYH48 RW+PrsRJpPDwBB/WXFI12Mn2L9Wu2k07zUCsMmmRZrnAYlvZrZjFeF9mGsYHCVmYNMBmWRnds fy97RXVMvi+ZO00KKlvVaG2HOQxA2fdpMP9j4v2kAi2rl/b4Tod9CJ7jPjiC4UbQP+Dbdf+pi /eIcQhfqVPgc6x9PF23mHj5a4jnNkF92Jp1RMZcIf9Jj0DNez+oEP7GxUlH5fR6AGONebP8oM c06Q+g== 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: - 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 -- 2.35.1 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 */