From patchwork Sun Dec 5 15:32:55 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Virag X-Patchwork-Id: 520818 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 3A14DC433FE for ; Sun, 5 Dec 2021 15:34:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235691AbhLEPiL (ORCPT ); Sun, 5 Dec 2021 10:38:11 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49760 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235449AbhLEPiK (ORCPT ); Sun, 5 Dec 2021 10:38:10 -0500 Received: from mail-ed1-x530.google.com (mail-ed1-x530.google.com [IPv6:2a00:1450:4864:20::530]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6962EC061714; Sun, 5 Dec 2021 07:34:43 -0800 (PST) Received: by mail-ed1-x530.google.com with SMTP id y12so32446258eda.12; Sun, 05 Dec 2021 07:34:43 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=s227VvqQvuXMNpaXSWhEVtyVrvC2WZcc4qC7RY9r+kQ=; b=e3SxhDXcdh0WMsWuz3x6ra7OWxy4fIeiM8EXCIJzNdqQQqNCQmsiBzIZiuLepWhhRx /qWbiw8iEgWrR4secUUMOmwSKVpQfYLaY7RvVKGBApNAqGkYcntr81IgwQym4lFVwjdS 5ZilAPm0w8eUgO7j5DopLtycKEocpU6zR1rpwAqVmRCSJQXN81OkxGq/BqIfLc9qRZAy olM6Izcvbd0O5Ft3YcCOCkW2qWQ3AUH9TbR6tC2WNhiaV0iTRTRvoPJVcPvuxcz/CMSQ p8cvbtQb1mcRN98Qu6CQPRvr1sNMtkVkes1H87S0GIfw1wQjMO11w+argJqrSLFb2p3G 1ioA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=s227VvqQvuXMNpaXSWhEVtyVrvC2WZcc4qC7RY9r+kQ=; b=Gu4gzRfZTKDhOUlHuJ8YdON7wAUVFs9AEDGQg+depfl71GY/X78cV1vD6SQH+6r5Vo SsEtYRo9zrvxnNVpDGzqpncK/2HL5dQoWEUxdgX6MeRrj/QKnOecCJ+vr3gIGuP0sxSd jrXfLq5e+tz4eAQOewonky2MfYtTWsXcVj3ES2ptGATa9FzyXajFu4lRk8llE+N+6N6P MvJ9YGdSEGaofyCeI9PeQV+hdAGuNnBfdpala7O5nTrPk4kuRhqNzbCXpTzIU56N9v7t E185rsgNlGaPJCpVcf3rp4syxQzzAcmrZOdo/31m6u4Nzl44qXj47aXbp8RdbFYIkUwE ZAVQ== X-Gm-Message-State: AOAM5317GXC+tLnss6gzd1XpmUUd2P393xdCa/74QDEPXqHy0LpPZOjP hW558rwhhJWE6PG2zmiFhWU= X-Google-Smtp-Source: ABdhPJxmFfQTAJiwLFNDFIvkr5vW1vmAu3zIgay1PRlcAhxfwWSYDEis9twNlltlpKht5mW2gV8tAQ== X-Received: by 2002:a05:6402:4382:: with SMTP id o2mr44801294edc.143.1638718482028; Sun, 05 Dec 2021 07:34:42 -0800 (PST) Received: from localhost.localdomain ([2a02:ab88:368f:2080:eab:126a:947d:3008]) by smtp.googlemail.com with ESMTPSA id sa17sm5529941ejc.123.2021.12.05.07.34.40 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Dec 2021 07:34:41 -0800 (PST) From: David Virag Cc: David Virag , Krzysztof Kozlowski , Rob Herring , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , Michael Turquette , Stephen Boyd , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH 1/6] clk: samsung: clk-pll: Add support for pll1417x Date: Sun, 5 Dec 2021 16:32:55 +0100 Message-Id: <20211205153302.76418-2-virag.david003@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211205153302.76418-1-virag.david003@gmail.com> References: <20211205153302.76418-1-virag.david003@gmail.com> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org pll1417x is used in Exynos7885 SoC for top-level integer PLLs. It is similar enough to pll0822x that practically the same code can handle both. The difference that's to be noted is that when defining a pl1417x PLL, the "con" parameter of the PLL macro should be set to the CON1 register instead of CON3, like this: PLL(pll_1417x, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk", PLL_LOCKTIME_PLL_SHARED0, PLL_CON0_PLL_SHARED0, NULL), Signed-off-by: David Virag --- drivers/clk/samsung/clk-pll.c | 1 + drivers/clk/samsung/clk-pll.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/clk/samsung/clk-pll.c b/drivers/clk/samsung/clk-pll.c index 83d1b03647db..70cdc87f714e 100644 --- a/drivers/clk/samsung/clk-pll.c +++ b/drivers/clk/samsung/clk-pll.c @@ -1476,6 +1476,7 @@ static void __init _samsung_clk_register_pll(struct samsung_clk_provider *ctx, else init.ops = &samsung_pll35xx_clk_ops; break; + case pll_1417x: case pll_0822x: pll->enable_offs = PLL0822X_ENABLE_SHIFT; pll->lock_offs = PLL0822X_LOCK_STAT_SHIFT; diff --git a/drivers/clk/samsung/clk-pll.h b/drivers/clk/samsung/clk-pll.h index a739f2b7ae80..c83a20195f6d 100644 --- a/drivers/clk/samsung/clk-pll.h +++ b/drivers/clk/samsung/clk-pll.h @@ -32,6 +32,7 @@ enum samsung_pll_type { pll_2550xx, pll_2650x, pll_2650xx, + pll_1417x, pll_1450x, pll_1451x, pll_1452x, From patchwork Sun Dec 5 15:32:57 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Virag X-Patchwork-Id: 520817 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 1E624C43217 for ; Sun, 5 Dec 2021 15:34:56 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235715AbhLEPiU (ORCPT ); Sun, 5 Dec 2021 10:38:20 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49808 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235753AbhLEPiS (ORCPT ); Sun, 5 Dec 2021 10:38:18 -0500 Received: from mail-ed1-x533.google.com (mail-ed1-x533.google.com [IPv6:2a00:1450:4864:20::533]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7F63FC061714; Sun, 5 Dec 2021 07:34:51 -0800 (PST) Received: by mail-ed1-x533.google.com with SMTP id o20so32706387eds.10; Sun, 05 Dec 2021 07:34:51 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=AX47zXX0gETNKhJBGlDEZHhKpmZEISduk5IYp/j7Q7E=; b=qPy1LSM/bc+f3rh7Qgn3C13PCneG+hWi51QdaoVKzBknyo4el6uf2luYOavQJk6J3z jzdc73sJ6yirW/Gc6hforM//CA3kFi8yqa6O9NJ05RGp81fiv6ovvBOHHKisLLYm4GoU BkLXjUDm9zCm21CeFTrHGW9cbxNE9886LRzNCp5ryUMpX7V9+pcfl83ESS9bdu3+f2kL SXRXG3cPuk33AVlPcmratKHIw6EYRfqK0CXSbs/TC4S1zyjRWeqmJNDNUJamVe7UDml8 ecfrn1z7DolJ1aWEQIHs9SJCt9G3U8cPv4EJB6qY4xL7aOycUdla3e0d3cQKA7kSVme0 BMdA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=AX47zXX0gETNKhJBGlDEZHhKpmZEISduk5IYp/j7Q7E=; b=a6NYpOFR6z1Tnd5rETaIYNrVKaS91C+3JyCojwIG+YX7HyVrO5CFfKLLWwkyLAuMiM 8IOkh+MW76r2EeUKr+0ZqYmBpWkCyog9aM7E2Ccm+lRKYsKhiw9ZCANy+ex9Q2xq2UYY mc6/gcu3zoaSLEfjULytyhc9NVY3U6kFVAmMC73neAHijifIlECN8tvAQtQYpt1+bqlI mxJTiJjkR/rdHZWUvII71t702eSkUKm4Tbdelq2EOEp457FdaTL2wzIX9Bc3cxAGeUJf JICmOnuUcuQX91HT5hkxL/5lauuQ2j4uaP0zA8uNtiZfe/UGXJY86GAqUve0ErouloTZ i3hw== X-Gm-Message-State: AOAM533u4gUQTwRzbK2ZT/TRNeGMrKs9oeP9/apoTa4tDFslIfQun+Wm HmOkkQzW00tS0yAC5GcI+r0= X-Google-Smtp-Source: ABdhPJwvZXpmt/vV6sm8ytYCNhmlDBEs37v3gyaCcGRaD3FAh56ApvpC2DhNDY1rgeTDmJ1tkLkecw== X-Received: by 2002:a17:907:d22:: with SMTP id gn34mr39044572ejc.195.1638718490033; Sun, 05 Dec 2021 07:34:50 -0800 (PST) Received: from localhost.localdomain ([2a02:ab88:368f:2080:eab:126a:947d:3008]) by smtp.googlemail.com with ESMTPSA id sa17sm5529941ejc.123.2021.12.05.07.34.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Dec 2021 07:34:49 -0800 (PST) From: David Virag Cc: David Virag , Krzysztof Kozlowski , Rob Herring , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , Michael Turquette , Stephen Boyd , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH 3/6] dt-bindings: clock: Document Exynos7885 CMU bindings Date: Sun, 5 Dec 2021 16:32:57 +0100 Message-Id: <20211205153302.76418-4-virag.david003@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211205153302.76418-1-virag.david003@gmail.com> References: <20211205153302.76418-1-virag.david003@gmail.com> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Provide dt-schema documentation for Exynos7885 SoC clock controller. Description is modified from Exynos850 clock controller documentation as I couldn't describe it any better, that was written by Sam Protsenko. Signed-off-by: David Virag --- .../clock/samsung,exynos7885-clock.yaml | 166 ++++++++++++++++++ 1 file changed, 166 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml diff --git a/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml b/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml new file mode 100644 index 000000000000..9ec7358889d6 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/samsung,exynos7885-clock.yaml @@ -0,0 +1,166 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/samsung,exynos7885-clock.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Samsung Exynos7885 SoC clock controller + +maintainers: + - Dávid Virág + - Chanwoo Choi + - Krzysztof Kozlowski + - Sylwester Nawrocki + - Tomasz Figa + +description: | + Exynos7885 clock controller is comprised of several CMU units, generating + clocks for different domains. Those CMU units are modeled as separate device + tree nodes, and might depend on each other. The root clock in that root tree + is an external clock:: OSCCLK (26 MHz). This external clock must be defined + as a fixed-rate clock in dts. + + CMU_TOP is a top-level CMU, where all base clocks are prepared using PLLs and + dividers; all other leaf clocks (other CMUs) are usually derived from CMU_TOP. + + Each clock is assigned an identifier and client nodes can use this identifier + to specify the clock which they consume. All clocks available for usage + in clock consumer nodes are defined as preprocessor macros in + 'dt-bindings/clock/exynos7885.h' header. + +properties: + compatible: + enum: + - samsung,exynos7885-cmu-top + - samsung,exynos7885-cmu-core + - samsung,exynos7885-cmu-peri + + clocks: + minItems: 1 + maxItems: 10 + + clock-names: + minItems: 1 + maxItems: 10 + + "#clock-cells": + const: 1 + + reg: + maxItems: 1 + +allOf: + - if: + properties: + compatible: + contains: + const: samsung,exynos7885-cmu-top + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + + clock-names: + items: + - const: oscclk + + - if: + properties: + compatible: + contains: + const: samsung,exynos7885-cmu-core + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_CORE bus clock (from CMU_TOP) + - description: CCI clock (from CMU_TOP) + - description: G3D clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_core_bus + - const: dout_core_cci + - const: dout_core_g3d + + - if: + properties: + compatible: + contains: + const: samsung,exynos7885-cmu-peri + + then: + properties: + clocks: + items: + - description: External reference clock (26 MHz) + - description: CMU_PERI bus clock (from CMU_TOP) + - description: SPI0 clock (from CMU_TOP) + - description: SPI1 clock (from CMU_TOP) + - description: UART0 clock (from CMU_TOP) + - description: UART1 clock (from CMU_TOP) + - description: UART2 clock (from CMU_TOP) + - description: USI0 clock (from CMU_TOP) + - description: USI1 clock (from CMU_TOP) + - description: USI2 clock (from CMU_TOP) + + clock-names: + items: + - const: oscclk + - const: dout_peri_bus + - const: dout_peri_spi0 + - const: dout_peri_spi1 + - const: dout_peri_uart0 + - const: dout_peri_uart1 + - const: dout_peri_uart2 + - const: dout_peri_usi0 + - const: dout_peri_usi1 + - const: dout_peri_usi2 + +required: + - compatible + - "#clock-cells" + - clocks + - clock-names + - reg + +additionalProperties: false + +examples: + # Clock controller node for CMU_PERI + - | + #include + + cmu_peri: clock-controller@0x10010000 { + compatible = "samsung,exynos7885-cmu-peri"; + reg = <0x10010000 0x8000>; + #clock-cells = <1>; + + clocks = <&oscclk>, + <&cmu_top CLK_DOUT_PERI_BUS>, + <&cmu_top CLK_DOUT_PERI_SPI0>, + <&cmu_top CLK_DOUT_PERI_SPI1>, + <&cmu_top CLK_DOUT_PERI_UART0>, + <&cmu_top CLK_DOUT_PERI_UART1>, + <&cmu_top CLK_DOUT_PERI_UART2>, + <&cmu_top CLK_DOUT_PERI_USI0>, + <&cmu_top CLK_DOUT_PERI_USI1>, + <&cmu_top CLK_DOUT_PERI_USI2>; + clock-names = "oscclk", + "dout_peri_bus", + "dout_peri_spi0", + "dout_peri_spi1", + "dout_peri_uart0", + "dout_peri_uart1", + "dout_peri_uart2", + "dout_peri_usi0", + "dout_peri_usi1", + "dout_peri_usi2"; + }; + +... From patchwork Sun Dec 5 15:32:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: David Virag X-Patchwork-Id: 520816 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 52196C433FE for ; Sun, 5 Dec 2021 15:35:01 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235766AbhLEPiY (ORCPT ); Sun, 5 Dec 2021 10:38:24 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235743AbhLEPiX (ORCPT ); Sun, 5 Dec 2021 10:38:23 -0500 Received: from mail-ed1-x52f.google.com (mail-ed1-x52f.google.com [IPv6:2a00:1450:4864:20::52f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8817CC061714; Sun, 5 Dec 2021 07:34:55 -0800 (PST) Received: by mail-ed1-x52f.google.com with SMTP id l25so32655655eda.11; Sun, 05 Dec 2021 07:34:55 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=6hNwLtr0M037Sc95+A42/EguVlJcbKDerRZrdXqTDvs=; b=Dc6XsrUpB9JobxPbrNg+UPsUG4hql3eCPna+GiSfyh7H3IMDj64x8oN9ZMa+Mwzwon lkzxg1NyOPYgAJAz9EfWFDnfHWn3nv2LRGQkG/uSZiWw9ME8b1WFQIGrQ0+FJHg+OQgY XY9l/Ap6/aPtJjhlWQqNrVJrR4cd3xqx5IfFBNF2w5vhyLI5gtmxXmEE9uY+pRikW/eM iya+0afAWNd3ZxFweQb5apv/fTA2gAJ27AGfUYXdPoBUfT59XVhpNyleFVK3p8sHqU39 i1KmNMhj3f4A6eywtfG7rnuJYy2lUhz0dG14VBhIxQyAieMg/hUDMnuwsjdm9hsiJAfO /pDg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=6hNwLtr0M037Sc95+A42/EguVlJcbKDerRZrdXqTDvs=; b=k5bnQAGgztlLrM4clDn8kglrPILGhsFpO0jwjBgF2JmLU4zVtBpSn+0U4oZJQw9sr3 re3RVnWP0VLHOU+z/+Qoy9K9AEwxU9sx+c+Zuv5X8yrkyXIEr5px9y9K7FJZ0qHFAd2X DALAQRQtpRvXu39To6bf83mqrc2wEvvydyb/elX/6EbA+mltJmNazjzRyKJCba9jJPrx jJiA7b0/dvXdtcqH5N5VLKBItXFaRF652PkTwj7Vdr/mVVJ2DIOMgFJifV7ca4KjK7mn WPYzx7Y85E+Opc1YhzzGvkkZcMGY9TpMkmHBKsJ8U+s2KhzWPhb9ftE1BxF+3iNlKcC6 yhsA== X-Gm-Message-State: AOAM531O4dvu25+g+z6311Pk7QB6c4EBYshKK5H4JAnzTlYfNvY/Oick uUWyPHWLLrgDdYCm9AUKgPI= X-Google-Smtp-Source: ABdhPJy8YjbO/XsJk4NW2I9skHwKa+Kd6lu61g1KNRTMr/bLo+PewwaSQvT8cQUQkOlzc7C6R5Ew7w== X-Received: by 2002:a17:907:a0d4:: with SMTP id hw20mr39450666ejc.16.1638718493940; Sun, 05 Dec 2021 07:34:53 -0800 (PST) Received: from localhost.localdomain ([2a02:ab88:368f:2080:eab:126a:947d:3008]) by smtp.googlemail.com with ESMTPSA id sa17sm5529941ejc.123.2021.12.05.07.34.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 05 Dec 2021 07:34:53 -0800 (PST) From: David Virag Cc: David Virag , Krzysztof Kozlowski , Rob Herring , Sylwester Nawrocki , Tomasz Figa , Chanwoo Choi , Michael Turquette , Stephen Boyd , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org Subject: [PATCH 4/6] clk: samsung: Add initial Exynos7885 clock driver Date: Sun, 5 Dec 2021 16:32:58 +0100 Message-Id: <20211205153302.76418-5-virag.david003@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20211205153302.76418-1-virag.david003@gmail.com> References: <20211205153302.76418-1-virag.david003@gmail.com> MIME-Version: 1.0 To: unlisted-recipients:; (no To-header on input) Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This is an initial implementation adding basic clocks, such as UART, USI, I2C, WDT, ect. and their parent clocks. It is heavily based on the Exynos850 clock driver at 'drivers/clk/samsung/clk-exynos850.c' which was made by Sam Protsenko, thus the copyright and author lines were kept. Bus clocks are enabled by default as well to avoid hangs while trying to access CMU registers. Only the parts of CMU_TOP needed for CMU_CORE and CMU_PERI, a bit of CMU_CORE, and most of CMU_PERI is implemented as of now. Signed-off-by: David Virag --- drivers/clk/samsung/Makefile | 1 + drivers/clk/samsung/clk-exynos7885.c | 680 +++++++++++++++++++++++++++ 2 files changed, 681 insertions(+) create mode 100644 drivers/clk/samsung/clk-exynos7885.c diff --git a/drivers/clk/samsung/Makefile b/drivers/clk/samsung/Makefile index c46cf11e4d0b..149258b232a9 100644 --- a/drivers/clk/samsung/Makefile +++ b/drivers/clk/samsung/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_EXYNOS_AUDSS_CLK_CON) += clk-exynos-audss.o obj-$(CONFIG_EXYNOS_CLKOUT) += clk-exynos-clkout.o obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7.o obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos850.o +obj-$(CONFIG_EXYNOS_ARM64_COMMON_CLK) += clk-exynos7885.o obj-$(CONFIG_S3C2410_COMMON_CLK)+= clk-s3c2410.o obj-$(CONFIG_S3C2410_COMMON_DCLK)+= clk-s3c2410-dclk.o obj-$(CONFIG_S3C2412_COMMON_CLK)+= clk-s3c2412.o diff --git a/drivers/clk/samsung/clk-exynos7885.c b/drivers/clk/samsung/clk-exynos7885.c new file mode 100644 index 000000000000..088f36e64609 --- /dev/null +++ b/drivers/clk/samsung/clk-exynos7885.c @@ -0,0 +1,680 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2021 Linaro Ltd. + * Copyright (C) 2021 Dávid Virág + * Author: Sam Protsenko + * Author: Dávid Virág + * + * Common Clock Framework support for Exynos7885 SoC. + */ + +#include +#include +#include +#include +#include +#include + +#include + +#include "clk.h" + +/* Gate register bits */ +#define GATE_MANUAL BIT(20) +#define GATE_ENABLE_HWACG BIT(28) + +/* Gate register offsets range */ +#define GATE_OFF_START 0x2000 +#define GATE_OFF_END 0x2fff + +/** + * exynos7885_init_clocks - Set clocks initial configuration + * @np: CMU device tree node with "reg" property (CMU addr) + * @reg_offs: Register offsets array for clocks to init + * @reg_offs_len: Number of register offsets in reg_offs array + * + * Set manual control mode for all gate clocks. + */ +static void __init exynos7885_init_clocks(struct device_node *np, + const unsigned long *reg_offs, size_t reg_offs_len) +{ + void __iomem *reg_base; + size_t i; + + reg_base = of_iomap(np, 0); + if (!reg_base) + panic("%s: failed to map registers\n", __func__); + + for (i = 0; i < reg_offs_len; ++i) { + void __iomem *reg = reg_base + reg_offs[i]; + u32 val; + + /* Modify only gate clock registers */ + if (reg_offs[i] < GATE_OFF_START || reg_offs[i] > GATE_OFF_END) + continue; + + val = readl(reg); + val |= GATE_MANUAL; + val &= ~GATE_ENABLE_HWACG; + writel(val, reg); + } + + iounmap(reg_base); +} + +/** + * exynos7885_register_cmu - Register specified Exynos7885 CMU domain + * @dev: Device object; may be NULL if this function is not being + * called from platform driver probe function + * @np: CMU device tree node + * @cmu: CMU data + * + * Register specified CMU domain, which includes next steps: + * + * 1. Enable parent clock of @cmu CMU + * 2. Set initial registers configuration for @cmu CMU clocks + * 3. Register @cmu CMU clocks using Samsung clock framework API + */ +static void __init exynos7885_register_cmu(struct device *dev, + struct device_node *np, const struct samsung_cmu_info *cmu) +{ + /* Keep CMU parent clock running (needed for CMU registers access) */ + if (cmu->clk_name) { + struct clk *parent_clk; + + if (dev) + parent_clk = clk_get(dev, cmu->clk_name); + else + parent_clk = of_clk_get_by_name(np, cmu->clk_name); + + if (IS_ERR(parent_clk)) { + pr_err("%s: could not find bus clock %s; err = %ld\n", + __func__, cmu->clk_name, PTR_ERR(parent_clk)); + } else { + clk_prepare_enable(parent_clk); + } + } + + exynos7885_init_clocks(np, cmu->clk_regs, cmu->nr_clk_regs); + samsung_cmu_register_one(np, cmu); +} + +/* ---- CMU_TOP ------------------------------------------------------------- */ + +/* Register Offset definitions for CMU_TOP (0x12060000) */ +#define PLL_LOCKTIME_PLL_SHARED0 0x0000 +#define PLL_LOCKTIME_PLL_SHARED1 0x0004 +#define PLL_CON0_PLL_SHARED0 0x0100 +#define PLL_CON0_PLL_SHARED1 0x0120 +#define CLK_CON_MUX_MUX_CLKCMU_CORE_BUS 0x1014 +#define CLK_CON_MUX_MUX_CLKCMU_CORE_CCI 0x1018 +#define CLK_CON_MUX_MUX_CLKCMU_CORE_G3D 0x101c +#define CLK_CON_MUX_MUX_CLKCMU_PERI_BUS 0x1058 +#define CLK_CON_MUX_MUX_CLKCMU_PERI_SPI0 0x105c +#define CLK_CON_MUX_MUX_CLKCMU_PERI_SPI1 0x1060 +#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART0 0x1064 +#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART1 0x1068 +#define CLK_CON_MUX_MUX_CLKCMU_PERI_UART2 0x106c +#define CLK_CON_MUX_MUX_CLKCMU_PERI_USI0 0x1070 +#define CLK_CON_MUX_MUX_CLKCMU_PERI_USI1 0x1074 +#define CLK_CON_MUX_MUX_CLKCMU_PERI_USI2 0x1078 +#define CLK_CON_DIV_CLKCMU_CORE_BUS 0x181c +#define CLK_CON_DIV_CLKCMU_CORE_CCI 0x1820 +#define CLK_CON_DIV_CLKCMU_CORE_G3D 0x1824 +#define CLK_CON_DIV_CLKCMU_PERI_BUS 0x1874 +#define CLK_CON_DIV_CLKCMU_PERI_SPI0 0x1878 +#define CLK_CON_DIV_CLKCMU_PERI_SPI1 0x187c +#define CLK_CON_DIV_CLKCMU_PERI_UART0 0x1880 +#define CLK_CON_DIV_CLKCMU_PERI_UART1 0x1884 +#define CLK_CON_DIV_CLKCMU_PERI_UART2 0x1888 +#define CLK_CON_DIV_CLKCMU_PERI_USI0 0x188c +#define CLK_CON_DIV_CLKCMU_PERI_USI1 0x1890 +#define CLK_CON_DIV_CLKCMU_PERI_USI2 0x1894 +#define CLK_CON_DIV_PLL_SHARED0_DIV2 0x189c +#define CLK_CON_DIV_PLL_SHARED0_DIV3 0x18a0 +#define CLK_CON_DIV_PLL_SHARED0_DIV4 0x18a4 +#define CLK_CON_DIV_PLL_SHARED0_DIV5 0x18a8 +#define CLK_CON_DIV_PLL_SHARED1_DIV2 0x18ac +#define CLK_CON_DIV_PLL_SHARED1_DIV3 0x18b0 +#define CLK_CON_DIV_PLL_SHARED1_DIV4 0x18b4 +#define CLK_CON_GAT_GATE_CLKCMUC_PERI_UART1 0x2004 +#define CLK_CON_GAT_GATE_CLKCMU_CORE_BUS 0x201c +#define CLK_CON_GAT_GATE_CLKCMU_CORE_CCI 0x2020 +#define CLK_CON_GAT_GATE_CLKCMU_CORE_G3D 0x2024 +#define CLK_CON_GAT_GATE_CLKCMU_PERI_BUS 0x207c +#define CLK_CON_GAT_GATE_CLKCMU_PERI_SPI0 0x2080 +#define CLK_CON_GAT_GATE_CLKCMU_PERI_SPI1 0x2084 +#define CLK_CON_GAT_GATE_CLKCMU_PERI_UART0 0x2088 +#define CLK_CON_GAT_GATE_CLKCMU_PERI_UART2 0x208c +#define CLK_CON_GAT_GATE_CLKCMU_PERI_USI0 0x2090 +#define CLK_CON_GAT_GATE_CLKCMU_PERI_USI1 0x2094 +#define CLK_CON_GAT_GATE_CLKCMU_PERI_USI2 0x2098 + +static const unsigned long top_clk_regs[] __initconst = { + PLL_LOCKTIME_PLL_SHARED0, + PLL_LOCKTIME_PLL_SHARED1, + PLL_CON0_PLL_SHARED0, + PLL_CON0_PLL_SHARED1, + CLK_CON_MUX_MUX_CLKCMU_CORE_BUS, + CLK_CON_MUX_MUX_CLKCMU_CORE_CCI, + CLK_CON_MUX_MUX_CLKCMU_CORE_G3D, + CLK_CON_MUX_MUX_CLKCMU_PERI_BUS, + CLK_CON_MUX_MUX_CLKCMU_PERI_SPI0, + CLK_CON_MUX_MUX_CLKCMU_PERI_SPI1, + CLK_CON_MUX_MUX_CLKCMU_PERI_UART0, + CLK_CON_MUX_MUX_CLKCMU_PERI_UART1, + CLK_CON_MUX_MUX_CLKCMU_PERI_UART2, + CLK_CON_MUX_MUX_CLKCMU_PERI_USI0, + CLK_CON_MUX_MUX_CLKCMU_PERI_USI1, + CLK_CON_MUX_MUX_CLKCMU_PERI_USI2, + CLK_CON_DIV_CLKCMU_CORE_BUS, + CLK_CON_DIV_CLKCMU_CORE_CCI, + CLK_CON_DIV_CLKCMU_CORE_G3D, + CLK_CON_DIV_CLKCMU_PERI_BUS, + CLK_CON_DIV_CLKCMU_PERI_SPI0, + CLK_CON_DIV_CLKCMU_PERI_SPI1, + CLK_CON_DIV_CLKCMU_PERI_UART0, + CLK_CON_DIV_CLKCMU_PERI_UART1, + CLK_CON_DIV_CLKCMU_PERI_UART2, + CLK_CON_DIV_CLKCMU_PERI_USI0, + CLK_CON_DIV_CLKCMU_PERI_USI1, + CLK_CON_DIV_CLKCMU_PERI_USI2, + CLK_CON_DIV_PLL_SHARED0_DIV2, + CLK_CON_DIV_PLL_SHARED0_DIV3, + CLK_CON_DIV_PLL_SHARED0_DIV4, + CLK_CON_DIV_PLL_SHARED0_DIV5, + CLK_CON_DIV_PLL_SHARED1_DIV2, + CLK_CON_DIV_PLL_SHARED1_DIV3, + CLK_CON_DIV_PLL_SHARED1_DIV4, + CLK_CON_GAT_GATE_CLKCMUC_PERI_UART1, + CLK_CON_GAT_GATE_CLKCMU_CORE_BUS, + CLK_CON_GAT_GATE_CLKCMU_CORE_CCI, + CLK_CON_GAT_GATE_CLKCMU_CORE_G3D, + CLK_CON_GAT_GATE_CLKCMU_PERI_BUS, + CLK_CON_GAT_GATE_CLKCMU_PERI_SPI0, + CLK_CON_GAT_GATE_CLKCMU_PERI_SPI1, + CLK_CON_GAT_GATE_CLKCMU_PERI_UART0, + CLK_CON_GAT_GATE_CLKCMU_PERI_UART2, + CLK_CON_GAT_GATE_CLKCMU_PERI_USI0, + CLK_CON_GAT_GATE_CLKCMU_PERI_USI1, + CLK_CON_GAT_GATE_CLKCMU_PERI_USI2, +}; + +static const struct samsung_pll_clock top_pll_clks[] __initconst = { + PLL(pll_1417x, CLK_FOUT_SHARED0_PLL, "fout_shared0_pll", "oscclk", + PLL_LOCKTIME_PLL_SHARED0, PLL_CON0_PLL_SHARED0, + NULL), + PLL(pll_1417x, CLK_FOUT_SHARED1_PLL, "fout_shared1_pll", "oscclk", + PLL_LOCKTIME_PLL_SHARED1, PLL_CON0_PLL_SHARED1, + NULL), +}; + +/* List of parent clocks for Muxes in CMU_TOP: for CMU_CORE */ +PNAME(mout_core_bus_p) = { "dout_shared0_div2", "dout_shared1_div2", + "dout_shared0_div3", "dout_shared0_div3" }; +PNAME(mout_core_cci_p) = { "dout_shared0_div2", "dout_shared1_div2", + "dout_shared0_div3", "dout_shared0_div3" }; +PNAME(mout_core_g3d_p) = { "dout_shared0_div2", "dout_shared1_div2", + "dout_shared0_div3", "dout_shared0_div3" }; + +/* List of parent clocks for Muxes in CMU_TOP: for CMU_PERI */ +PNAME(mout_peri_bus_p) = { "dout_shared0_div4", "dout_shared1_div4" }; +PNAME(mout_peri_spi0_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_spi1_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_uart0_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_uart1_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_uart2_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_usi0_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_usi1_p) = { "oscclk", "dout_shared0_div4" }; +PNAME(mout_peri_usi2_p) = { "oscclk", "dout_shared0_div4" }; + + +static const struct samsung_mux_clock top_mux_clks[] __initconst = { + /* CORE */ + MUX(CLK_MOUT_CORE_BUS, "mout_core_bus", mout_core_bus_p, + CLK_CON_MUX_MUX_CLKCMU_CORE_BUS, 0, 2), + MUX(CLK_MOUT_CORE_CCI, "mout_core_cci", mout_core_cci_p, + CLK_CON_MUX_MUX_CLKCMU_CORE_CCI, 0, 2), + MUX(CLK_MOUT_CORE_G3D, "mout_core_g3d", mout_core_g3d_p, + CLK_CON_MUX_MUX_CLKCMU_CORE_G3D, 0, 2), + + /* PERI */ + MUX(CLK_MOUT_PERI_BUS, "mout_peri_bus", mout_peri_bus_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_BUS, 0, 1), + MUX(CLK_MOUT_PERI_SPI0, "mout_peri_spi0", mout_peri_spi0_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_SPI0, 0, 1), + MUX(CLK_MOUT_PERI_SPI1, "mout_peri_spi1", mout_peri_spi1_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_SPI1, 0, 1), + MUX(CLK_MOUT_PERI_UART0, "mout_peri_uart0", mout_peri_uart0_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_UART0, 0, 1), + MUX(CLK_MOUT_PERI_UART1, "mout_peri_uart1", mout_peri_uart1_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_UART1, 0, 1), + MUX(CLK_MOUT_PERI_UART2, "mout_peri_uart2", mout_peri_uart2_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_UART2, 0, 1), + MUX(CLK_MOUT_PERI_USI0, "mout_peri_usi0", mout_peri_usi0_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_USI0, 0, 1), + MUX(CLK_MOUT_PERI_USI1, "mout_peri_usi1", mout_peri_usi1_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_USI1, 0, 1), + MUX(CLK_MOUT_PERI_USI2, "mout_peri_usi2", mout_peri_usi2_p, + CLK_CON_MUX_MUX_CLKCMU_PERI_USI2, 0, 1), +}; + +static const struct samsung_div_clock top_div_clks[] __initconst = { + /* TOP */ + DIV(CLK_DOUT_SHARED0_DIV2, "dout_shared0_div2", "fout_shared0_pll", + CLK_CON_DIV_PLL_SHARED0_DIV2, 0, 1), + DIV(CLK_DOUT_SHARED0_DIV3, "dout_shared0_div3", "fout_shared0_pll", + CLK_CON_DIV_PLL_SHARED0_DIV3, 0, 2), + DIV(CLK_DOUT_SHARED0_DIV4, "dout_shared0_div4", "fout_shared0_pll", + CLK_CON_DIV_PLL_SHARED0_DIV4, 0, 1), + DIV(CLK_DOUT_SHARED0_DIV5, "dout_shared0_div5", "fout_shared0_pll", + CLK_CON_DIV_PLL_SHARED0_DIV5, 0, 3), + DIV(CLK_DOUT_SHARED1_DIV2, "dout_shared1_div2", "fout_shared1_pll", + CLK_CON_DIV_PLL_SHARED1_DIV2, 0, 1), + DIV(CLK_DOUT_SHARED1_DIV3, "dout_shared1_div3", "fout_shared1_pll", + CLK_CON_DIV_PLL_SHARED1_DIV3, 0, 2), + DIV(CLK_DOUT_SHARED1_DIV4, "dout_shared1_div4", "fout_shared1_pll", + CLK_CON_DIV_PLL_SHARED1_DIV4, 0, 1), + + /* CORE */ + DIV(CLK_DOUT_CORE_BUS, "dout_core_bus", "gout_core_bus", + CLK_CON_DIV_CLKCMU_CORE_BUS, 0, 3), + DIV(CLK_DOUT_CORE_CCI, "dout_core_cci", "gout_core_cci", + CLK_CON_DIV_CLKCMU_CORE_CCI, 0, 3), + DIV(CLK_DOUT_CORE_G3D, "dout_core_g3d", "gout_core_g3d", + CLK_CON_DIV_CLKCMU_CORE_G3D, 0, 3), + + /* PERI */ + DIV(CLK_DOUT_PERI_BUS, "dout_peri_bus", "gout_peri_bus", + CLK_CON_DIV_CLKCMU_PERI_BUS, 0, 4), + DIV(CLK_DOUT_PERI_SPI0, "dout_peri_spi0", "gout_peri_spi0", + CLK_CON_DIV_CLKCMU_PERI_SPI0, 0, 6), + DIV(CLK_DOUT_PERI_SPI1, "dout_peri_spi1", "gout_peri_spi1", + CLK_CON_DIV_CLKCMU_PERI_SPI1, 0, 6), + DIV(CLK_DOUT_PERI_UART0, "dout_peri_uart0", "gout_peri_uart0", + CLK_CON_DIV_CLKCMU_PERI_UART0, 0, 4), + DIV(CLK_DOUT_PERI_UART1, "dout_peri_uart1", "gout_peri_uart1", + CLK_CON_DIV_CLKCMU_PERI_UART1, 0, 4), + DIV(CLK_DOUT_PERI_UART2, "dout_peri_uart2", "gout_peri_uart2", + CLK_CON_DIV_CLKCMU_PERI_UART2, 0, 4), + DIV(CLK_DOUT_PERI_USI0, "dout_peri_usi0", "gout_peri_usi0", + CLK_CON_DIV_CLKCMU_PERI_USI0, 0, 4), + DIV(CLK_DOUT_PERI_USI1, "dout_peri_usi1", "gout_peri_usi1", + CLK_CON_DIV_CLKCMU_PERI_USI1, 0, 4), + DIV(CLK_DOUT_PERI_USI2, "dout_peri_usi2", "gout_peri_usi2", + CLK_CON_DIV_CLKCMU_PERI_USI2, 0, 4), +}; + +static const struct samsung_gate_clock top_gate_clks[] __initconst = { + /* CORE */ + GATE(CLK_GOUT_CORE_BUS, "gout_core_bus", "mout_core_bus", + CLK_CON_GAT_GATE_CLKCMU_CORE_BUS, 21, 0, 0), + GATE(CLK_GOUT_CORE_CCI, "gout_core_cci", "mout_core_cci", + CLK_CON_GAT_GATE_CLKCMU_CORE_CCI, 21, 0, 0), + GATE(CLK_GOUT_CORE_G3D, "gout_core_g3d", "mout_core_g3d", + CLK_CON_GAT_GATE_CLKCMU_CORE_G3D, 21, 0, 0), + + /* PERI */ + GATE(CLK_GOUT_PERI_BUS, "gout_peri_bus", "mout_peri_bus", + CLK_CON_GAT_GATE_CLKCMU_PERI_BUS, 21, 0, 0), + GATE(CLK_GOUT_PERI_SPI0, "gout_peri_spi0", "mout_peri_spi0", + CLK_CON_GAT_GATE_CLKCMU_PERI_SPI0, 21, 0, 0), + GATE(CLK_GOUT_PERI_SPI1, "gout_peri_spi1", "mout_peri_spi1", + CLK_CON_GAT_GATE_CLKCMU_PERI_SPI1, 21, 0, 0), + GATE(CLK_GOUT_PERI_UART0, "gout_peri_uart0", "mout_peri_uart0", + CLK_CON_GAT_GATE_CLKCMU_PERI_UART0, 21, 0, 0), + GATE(CLK_GOUT_PERI_UART1, "gout_peri_uart1", "mout_peri_uart1", + CLK_CON_GAT_GATE_CLKCMUC_PERI_UART1, 21, 0, 0), + GATE(CLK_GOUT_PERI_UART2, "gout_peri_uart2", "mout_peri_uart2", + CLK_CON_GAT_GATE_CLKCMU_PERI_UART2, 21, 0, 0), + GATE(CLK_GOUT_PERI_USI0, "gout_peri_usi0", "mout_peri_usi0", + CLK_CON_GAT_GATE_CLKCMU_PERI_USI0, 21, 0, 0), + GATE(CLK_GOUT_PERI_USI1, "gout_peri_usi1", "mout_peri_usi1", + CLK_CON_GAT_GATE_CLKCMU_PERI_USI1, 21, 0, 0), + GATE(CLK_GOUT_PERI_USI2, "gout_peri_usi2", "mout_peri_usi2", + CLK_CON_GAT_GATE_CLKCMU_PERI_USI2, 21, 0, 0), +}; + +static const struct samsung_cmu_info top_cmu_info __initconst = { + .pll_clks = top_pll_clks, + .nr_pll_clks = ARRAY_SIZE(top_pll_clks), + .mux_clks = top_mux_clks, + .nr_mux_clks = ARRAY_SIZE(top_mux_clks), + .div_clks = top_div_clks, + .nr_div_clks = ARRAY_SIZE(top_div_clks), + .gate_clks = top_gate_clks, + .nr_gate_clks = ARRAY_SIZE(top_gate_clks), + .nr_clk_ids = TOP_NR_CLK, + .clk_regs = top_clk_regs, + .nr_clk_regs = ARRAY_SIZE(top_clk_regs), +}; + +static void __init exynos7885_cmu_top_init(struct device_node *np) +{ + exynos7885_register_cmu(NULL, np, &top_cmu_info); +} + +/* Register CMU_TOP early, as it's a dependency for other early domains */ +CLK_OF_DECLARE(exynos7885_cmu_top, "samsung,exynos7885-cmu-top", + exynos7885_cmu_top_init); + +/* ---- CMU_PERI ------------------------------------------------------------ */ + +/* Register Offset definitions for CMU_PERI (0x10010000) */ +#define PLL_CON0_MUX_CLKCMU_PERI_BUS_USER 0x0100 +#define PLL_CON0_MUX_CLKCMU_PERI_SPI0_USER 0x0120 +#define PLL_CON0_MUX_CLKCMU_PERI_SPI1_USER 0x0140 +#define PLL_CON0_MUX_CLKCMU_PERI_UART0_USER 0x0160 +#define PLL_CON0_MUX_CLKCMU_PERI_UART1_USER 0x0180 +#define PLL_CON0_MUX_CLKCMU_PERI_UART2_USER 0x01a0 +#define PLL_CON0_MUX_CLKCMU_PERI_USI0_USER 0x01c0 +#define PLL_CON0_MUX_CLKCMU_PERI_USI1_USER 0x01e0 +#define PLL_CON0_MUX_CLKCMU_PERI_USI2_USER 0x0200 +#define CLK_CON_GAT_GOUT_PERI_GPIO_TOP_PCLK 0x2024 +#define CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK 0x2028 +#define CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK 0x202c +#define CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK 0x2030 +#define CLK_CON_GAT_GOUT_PERI_HSI2C_3_PCLK 0x2034 +#define CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK 0x2038 +#define CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK 0x203c +#define CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK 0x2040 +#define CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK 0x2044 +#define CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK 0x2048 +#define CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK 0x204c +#define CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK 0x2050 +#define CLK_CON_GAT_GOUT_PERI_I2C_7_PCLK 0x2054 +#define CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK 0x2058 +#define CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK 0x205c +#define CLK_CON_GAT_GOUT_PERI_SPI_0_EXT_CLK 0x2060 +#define CLK_CON_GAT_GOUT_PERI_SPI_1_PCLK 0x2064 +#define CLK_CON_GAT_GOUT_PERI_SPI_1_EXT_CLK 0x2068 +#define CLK_CON_GAT_GOUT_PERI_UART_0_EXT_UCLK 0x206c +#define CLK_CON_GAT_GOUT_PERI_UART_0_PCLK 0x2070 +#define CLK_CON_GAT_GOUT_PERI_UART_1_EXT_UCLK 0x2074 +#define CLK_CON_GAT_GOUT_PERI_UART_1_PCLK 0x2078 +#define CLK_CON_GAT_GOUT_PERI_UART_2_EXT_UCLK 0x207c +#define CLK_CON_GAT_GOUT_PERI_UART_2_PCLK 0x2080 +#define CLK_CON_GAT_GOUT_PERI_USI0_PCLK 0x2084 +#define CLK_CON_GAT_GOUT_PERI_USI0_SCLK 0x2088 +#define CLK_CON_GAT_GOUT_PERI_USI1_PCLK 0x208c +#define CLK_CON_GAT_GOUT_PERI_USI1_SCLK 0x2090 +#define CLK_CON_GAT_GOUT_PERI_USI2_PCLK 0x2094 +#define CLK_CON_GAT_GOUT_PERI_USI2_SCLK 0x2098 +#define CLK_CON_GAT_GOUT_PERI_MCT_PCLK 0x20a0 +#define CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK 0x20b0 +#define CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER0_PCLK 0x20b4 +#define CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER1_PCLK 0x20b8 + +static const unsigned long peri_clk_regs[] __initconst = { + PLL_CON0_MUX_CLKCMU_PERI_BUS_USER, + PLL_CON0_MUX_CLKCMU_PERI_SPI0_USER, + PLL_CON0_MUX_CLKCMU_PERI_SPI1_USER, + PLL_CON0_MUX_CLKCMU_PERI_UART0_USER, + PLL_CON0_MUX_CLKCMU_PERI_UART1_USER, + PLL_CON0_MUX_CLKCMU_PERI_UART2_USER, + PLL_CON0_MUX_CLKCMU_PERI_USI0_USER, + PLL_CON0_MUX_CLKCMU_PERI_USI1_USER, + PLL_CON0_MUX_CLKCMU_PERI_USI2_USER, + CLK_CON_GAT_GOUT_PERI_GPIO_TOP_PCLK, + CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK, + CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK, + CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK, + CLK_CON_GAT_GOUT_PERI_HSI2C_3_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK, + CLK_CON_GAT_GOUT_PERI_I2C_7_PCLK, + CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK, + CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK, + CLK_CON_GAT_GOUT_PERI_SPI_0_EXT_CLK, + CLK_CON_GAT_GOUT_PERI_SPI_1_PCLK, + CLK_CON_GAT_GOUT_PERI_SPI_1_EXT_CLK, + CLK_CON_GAT_GOUT_PERI_UART_0_EXT_UCLK, + CLK_CON_GAT_GOUT_PERI_UART_0_PCLK, + CLK_CON_GAT_GOUT_PERI_UART_1_EXT_UCLK, + CLK_CON_GAT_GOUT_PERI_UART_1_PCLK, + CLK_CON_GAT_GOUT_PERI_UART_2_EXT_UCLK, + CLK_CON_GAT_GOUT_PERI_UART_2_PCLK, + CLK_CON_GAT_GOUT_PERI_USI0_PCLK, + CLK_CON_GAT_GOUT_PERI_USI0_SCLK, + CLK_CON_GAT_GOUT_PERI_USI1_PCLK, + CLK_CON_GAT_GOUT_PERI_USI1_SCLK, + CLK_CON_GAT_GOUT_PERI_USI2_PCLK, + CLK_CON_GAT_GOUT_PERI_USI2_SCLK, + CLK_CON_GAT_GOUT_PERI_MCT_PCLK, + CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK, + CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER0_PCLK, + CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER1_PCLK, +}; + +/* List of parent clocks for Muxes in CMU_PERI */ +PNAME(mout_peri_bus_user_p) = { "oscclk", "dout_peri_bus" }; +PNAME(mout_peri_spi0_user_p) = { "oscclk", "dout_peri_spi0" }; +PNAME(mout_peri_spi1_user_p) = { "oscclk", "dout_peri_spi1" }; +PNAME(mout_peri_uart0_user_p) = { "oscclk", "dout_peri_uart0" }; +PNAME(mout_peri_uart1_user_p) = { "oscclk", "dout_peri_uart1" }; +PNAME(mout_peri_uart2_user_p) = { "oscclk", "dout_peri_uart2" }; +PNAME(mout_peri_usi0_user_p) = { "oscclk", "dout_peri_usi0" }; +PNAME(mout_peri_usi1_user_p) = { "oscclk", "dout_peri_usi1" }; +PNAME(mout_peri_usi2_user_p) = { "oscclk", "dout_peri_usi2" }; + +static const struct samsung_mux_clock peri_mux_clks[] __initconst = { + MUX(CLK_MOUT_PERI_BUS_USER, "mout_peri_bus_user", mout_peri_bus_user_p, + PLL_CON0_MUX_CLKCMU_PERI_BUS_USER, 4, 1), + MUX(CLK_MOUT_PERI_SPI0_USER, "mout_peri_spi0_user", mout_peri_spi0_user_p, + PLL_CON0_MUX_CLKCMU_PERI_SPI0_USER, 4, 1), + MUX(CLK_MOUT_PERI_SPI1_USER, "mout_peri_spi1_user", mout_peri_spi1_user_p, + PLL_CON0_MUX_CLKCMU_PERI_SPI1_USER, 4, 1), + MUX(CLK_MOUT_PERI_UART0_USER, "mout_peri_uart0_user", + mout_peri_uart0_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART0_USER, 4, 1), + MUX(CLK_MOUT_PERI_UART1_USER, "mout_peri_uart1_user", + mout_peri_uart1_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART1_USER, 4, 1), + MUX(CLK_MOUT_PERI_UART2_USER, "mout_peri_uart2_user", + mout_peri_uart2_user_p, PLL_CON0_MUX_CLKCMU_PERI_UART2_USER, 4, 1), + MUX(CLK_MOUT_PERI_USI0_USER, "mout_peri_usi0_user", + mout_peri_usi0_user_p, PLL_CON0_MUX_CLKCMU_PERI_USI0_USER, 4, 1), + MUX(CLK_MOUT_PERI_USI1_USER, "mout_peri_usi1_user", + mout_peri_usi1_user_p, PLL_CON0_MUX_CLKCMU_PERI_USI1_USER, 4, 1), + MUX(CLK_MOUT_PERI_USI2_USER, "mout_peri_usi2_user", + mout_peri_usi2_user_p, PLL_CON0_MUX_CLKCMU_PERI_USI2_USER, 4, 1), +}; + +static const struct samsung_gate_clock peri_gate_clks[] __initconst = { + /* TODO: Should be enabled in GPIO driver (or made CLK_IS_CRITICAL) */ + GATE(CLK_GOUT_GPIO_TOP_PCLK, "gout_gpio_top_pclk", + "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_GPIO_TOP_PCLK, 21, CLK_IGNORE_UNUSED, 0), + GATE(CLK_GOUT_HSI2C0_PCLK, "gout_hsi2c0_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_HSI2C_0_PCLK, 21, 0, 0), + GATE(CLK_GOUT_HSI2C1_PCLK, "gout_hsi2c1_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_HSI2C_1_PCLK, 21, 0, 0), + GATE(CLK_GOUT_HSI2C2_PCLK, "gout_hsi2c2_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_HSI2C_2_PCLK, 21, 0, 0), + GATE(CLK_GOUT_HSI2C3_PCLK, "gout_hsi2c3_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_HSI2C_3_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C0_PCLK, "gout_i2c0_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_0_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C1_PCLK, "gout_i2c1_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_1_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C2_PCLK, "gout_i2c2_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_2_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C3_PCLK, "gout_i2c3_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_3_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C4_PCLK, "gout_i2c4_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_4_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C5_PCLK, "gout_i2c5_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_5_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C6_PCLK, "gout_i2c6_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_6_PCLK, 21, 0, 0), + GATE(CLK_GOUT_I2C7_PCLK, "gout_i2c7_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_I2C_7_PCLK, 21, 0, 0), + GATE(CLK_GOUT_PWM_MOTOR_PCLK, "gout_pwm_motor_pclk", + "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_PWM_MOTOR_PCLK, 21, 0, 0), + GATE(CLK_GOUT_SPI0_PCLK, "gout_spi0_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_SPI_0_PCLK, 21, 0, 0), + GATE(CLK_GOUT_SPI0_EXT_CLK, "gout_spi0_ipclk", "mout_peri_spi0_user", + CLK_CON_GAT_GOUT_PERI_SPI_0_EXT_CLK, 21, 0, 0), + GATE(CLK_GOUT_SPI1_PCLK, "gout_spi1_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_SPI_1_PCLK, 21, 0, 0), + GATE(CLK_GOUT_SPI1_EXT_CLK, "gout_spi1_ipclk", "mout_peri_spi1_user", + CLK_CON_GAT_GOUT_PERI_SPI_1_EXT_CLK, 21, 0, 0), + GATE(CLK_GOUT_UART0_EXT_UCLK, "gout_uart0_ext_uclk", "mout_peri_uart0_user", + CLK_CON_GAT_GOUT_PERI_UART_0_EXT_UCLK, 21, 0, 0), + GATE(CLK_GOUT_UART0_PCLK, "gout_uart0_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_UART_0_PCLK, 21, 0, 0), + GATE(CLK_GOUT_UART1_EXT_UCLK, "gout_uart1_ext_uclk", "mout_peri_uart1_user", + CLK_CON_GAT_GOUT_PERI_UART_1_EXT_UCLK, 21, 0, 0), + GATE(CLK_GOUT_UART1_PCLK, "gout_uart1_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_UART_1_PCLK, 21, 0, 0), + GATE(CLK_GOUT_UART2_EXT_UCLK, "gout_uart2_ext_uclk", "mout_peri_uart2_user", + CLK_CON_GAT_GOUT_PERI_UART_2_EXT_UCLK, 21, 0, 0), + GATE(CLK_GOUT_UART2_PCLK, "gout_uart2_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_UART_2_PCLK, 21, 0, 0), + GATE(CLK_GOUT_USI0_PCLK, "gout_usi0_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_USI0_PCLK, 21, 0, 0), + GATE(CLK_GOUT_USI0_SCLK, "gout_usi0_sclk", "mout_peri_usi0_user", + CLK_CON_GAT_GOUT_PERI_USI0_SCLK, 21, 0, 0), + GATE(CLK_GOUT_USI1_PCLK, "gout_usi1_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_USI1_PCLK, 21, 0, 0), + GATE(CLK_GOUT_USI1_SCLK, "gout_usi1_sclk", "mout_peri_usi1_user", + CLK_CON_GAT_GOUT_PERI_USI1_SCLK, 21, 0, 0), + GATE(CLK_GOUT_USI2_PCLK, "gout_usi2_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_USI2_PCLK, 21, 0, 0), + GATE(CLK_GOUT_USI2_SCLK, "gout_usi2_sclk", "mout_peri_usi2_user", + CLK_CON_GAT_GOUT_PERI_USI2_SCLK, 21, 0, 0), + GATE(CLK_GOUT_MCT_PCLK, "gout_mct_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_MCT_PCLK, 21, 0, 0), + GATE(CLK_GOUT_SYSREG_PERI_PCLK, "gout_sysreg_peri_pclk", + "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_SYSREG_PERI_PCLK, 21, 0, 0), + GATE(CLK_GOUT_WDT0_PCLK, "gout_wdt0_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER0_PCLK, 21, 0, 0), + GATE(CLK_GOUT_WDT1_PCLK, "gout_wdt1_pclk", "mout_peri_bus_user", + CLK_CON_GAT_GOUT_PERI_WDT_CLUSTER1_PCLK, 21, 0, 0), +}; + +static const struct samsung_cmu_info peri_cmu_info __initconst = { + .mux_clks = peri_mux_clks, + .nr_mux_clks = ARRAY_SIZE(peri_mux_clks), + .gate_clks = peri_gate_clks, + .nr_gate_clks = ARRAY_SIZE(peri_gate_clks), + .nr_clk_ids = PERI_NR_CLK, + .clk_regs = peri_clk_regs, + .nr_clk_regs = ARRAY_SIZE(peri_clk_regs), + .clk_name = "dout_peri_bus", +}; + +static void __init exynos7885_cmu_peri_init(struct device_node *np) +{ + exynos7885_register_cmu(NULL, np, &peri_cmu_info); +} + +/* Register CMU_PERI early, as it's needed for MCT timer */ +CLK_OF_DECLARE(exynos7885_cmu_peri, "samsung,exynos7885-cmu-peri", + exynos7885_cmu_peri_init); + +/* ---- CMU_CORE ------------------------------------------------------------ */ + +/* Register Offset definitions for CMU_CORE (0x12000000) */ +#define PLL_CON0_MUX_CLKCMU_CORE_BUS_USER 0x0100 +#define PLL_CON0_MUX_CLKCMU_CORE_CCI_USER 0x0120 +#define PLL_CON0_MUX_CLKCMU_CORE_G3D_USER 0x0140 +#define CLK_CON_MUX_MUX_CLK_CORE_GIC 0x1000 +#define CLK_CON_DIV_DIV_CLK_CORE_BUSP 0x1800 +#define CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK 0x2054 +#define CLK_CON_GAT_GOUT_CORE_GIC400_CLK 0x2058 + +static const unsigned long core_clk_regs[] __initconst = { + PLL_CON0_MUX_CLKCMU_CORE_BUS_USER, + PLL_CON0_MUX_CLKCMU_CORE_CCI_USER, + PLL_CON0_MUX_CLKCMU_CORE_G3D_USER, + CLK_CON_MUX_MUX_CLK_CORE_GIC, + CLK_CON_DIV_DIV_CLK_CORE_BUSP, + CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK, + CLK_CON_GAT_GOUT_CORE_GIC400_CLK, +}; + +/* List of parent clocks for Muxes in CMU_CORE */ +PNAME(mout_core_bus_user_p) = { "oscclk", "dout_core_bus" }; +PNAME(mout_core_cci_user_p) = { "oscclk", "dout_core_cci" }; +PNAME(mout_core_g3d_user_p) = { "oscclk", "dout_core_g3d" }; +PNAME(mout_core_gic_p) = { "dout_core_busp", "oscclk" }; + +static const struct samsung_mux_clock core_mux_clks[] __initconst = { + MUX(CLK_MOUT_CORE_BUS_USER, "mout_core_bus_user", mout_core_bus_user_p, + PLL_CON0_MUX_CLKCMU_CORE_BUS_USER, 4, 1), + MUX(CLK_MOUT_CORE_CCI_USER, "mout_core_cci_user", mout_core_cci_user_p, + PLL_CON0_MUX_CLKCMU_CORE_CCI_USER, 4, 1), + MUX(CLK_MOUT_CORE_G3D_USER, "mout_core_g3d_user", mout_core_g3d_user_p, + PLL_CON0_MUX_CLKCMU_CORE_G3D_USER, 4, 1), + MUX(CLK_MOUT_CORE_GIC, "mout_core_gic", mout_core_gic_p, + CLK_CON_MUX_MUX_CLK_CORE_GIC, 0, 1), +}; + +static const struct samsung_div_clock core_div_clks[] __initconst = { + DIV(CLK_DOUT_CORE_BUSP, "dout_core_busp", "mout_core_bus_user", + CLK_CON_DIV_DIV_CLK_CORE_BUSP, 0, 2), +}; + +static const struct samsung_gate_clock core_gate_clks[] __initconst = { + /* CCI (interconnect) clock must be always running */ + GATE(CLK_GOUT_CCI_ACLK, "gout_cci_aclk", "mout_core_cci_user", + CLK_CON_GAT_GOUT_CORE_CCI_550_ACLK, 21, CLK_IS_CRITICAL, 0), + /* GIC (interrupt controller) clock must be always running */ + GATE(CLK_GOUT_GIC400_CLK, "gout_gic400_clk", "mout_core_gic", + CLK_CON_GAT_GOUT_CORE_GIC400_CLK, 21, CLK_IS_CRITICAL, 0), +}; + +static const struct samsung_cmu_info core_cmu_info __initconst = { + .mux_clks = core_mux_clks, + .nr_mux_clks = ARRAY_SIZE(core_mux_clks), + .div_clks = core_div_clks, + .nr_div_clks = ARRAY_SIZE(core_div_clks), + .gate_clks = core_gate_clks, + .nr_gate_clks = ARRAY_SIZE(core_gate_clks), + .nr_clk_ids = CORE_NR_CLK, + .clk_regs = core_clk_regs, + .nr_clk_regs = ARRAY_SIZE(core_clk_regs), + .clk_name = "dout_core_bus", +}; + +/* ---- platform_driver ----------------------------------------------------- */ + +static int __init exynos7885_cmu_probe(struct platform_device *pdev) +{ + const struct samsung_cmu_info *info; + struct device *dev = &pdev->dev; + + info = of_device_get_match_data(dev); + exynos7885_register_cmu(dev, dev->of_node, info); + + return 0; +} + +static const struct of_device_id exynos7885_cmu_of_match[] = { + { + .compatible = "samsung,exynos7885-cmu-core", + .data = &core_cmu_info, + }, { + }, +}; + +static struct platform_driver exynos7885_cmu_driver __refdata = { + .driver = { + .name = "exynos7885-cmu", + .of_match_table = exynos7885_cmu_of_match, + .suppress_bind_attrs = true, + }, + .probe = exynos7885_cmu_probe, +}; + +static int __init exynos7885_cmu_init(void) +{ + return platform_driver_register(&exynos7885_cmu_driver); +} +core_initcall(exynos7885_cmu_init);