From patchwork Fri Mar 7 00:26:20 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Andre Przywara X-Patchwork-Id: 14005601 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 5B490C282D1 for ; Fri, 7 Mar 2025 00:38:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=YTbM0A4d2BA0UX9kNqCv759I+dQl1/QTsB5TKq4NBgk=; b=yuPL6+33M0xf1oNI/wnsuG2zER zp7DiuUOrABDa7bsSYZfEil3J4m3zoULvkRs3Xws5y8M3u3WL3QuvO1lVmdiIyFnbVb345oJIfB18 Eg7/nICpSbtynxu5wOg6HCOOhWWxrvoiimnpSofDrOWHKdezt59Wo4oidzcdnQu4Zk+WnDZMEg4WK mycDpaQZqFhb+ZPJXH2YMISNUgmUdaWNlEJk97tvYeUhC1GmGDNqxNcXHs+oREbgcmVh91kIL1NSe u5EfGCiDBDTvvUCih+3vZFt03FFZ6A9d/F4AguiIYimTKrWF88KJaF6uvfiD2NX2bIHhdkq9qLwqs nHuv6eTw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tqLj8-0000000Cer6-2qVg; Fri, 07 Mar 2025 00:38:10 +0000 Received: from foss.arm.com ([217.140.110.172]) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tqLY8-0000000Cd7I-2A3u for linux-arm-kernel@lists.infradead.org; Fri, 07 Mar 2025 00:26:49 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id F0ABF169E; Thu, 6 Mar 2025 16:27:00 -0800 (PST) Received: from localhost.localdomain (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 1FF293F673; Thu, 6 Mar 2025 16:26:46 -0800 (PST) From: Andre Przywara To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen-Yu Tsai , Jernej Skrabec , Samuel Holland Cc: Philipp Zabel , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [PATCH v4 06/14] clk: sunxi-ng: a523: Add support for bus clocks Date: Fri, 7 Mar 2025 00:26:20 +0000 Message-ID: <20250307002628.10684-7-andre.przywara@arm.com> X-Mailer: git-send-email 2.46.3 In-Reply-To: <20250307002628.10684-1-andre.przywara@arm.com> References: <20250307002628.10684-1-andre.przywara@arm.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250306_162648_611913_F5F10376 X-CRM114-Status: GOOD ( 11.31 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Add the basic bus clocks for the Allwinner A523 and T527 SoCs. This covers the AHB, APB0 and APB1 clocks. Linux is not supposed to change those clocks, but they are needed as parents for many other mod clocks. Signed-off-by: Andre Przywara Reviewed-by: Jernej Skrabec --- drivers/clk/sunxi-ng/ccu-sun55i-a523.c | 39 ++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) diff --git a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c index 455bca0c344bc..c8a96b642bb1e 100644 --- a/drivers/clk/sunxi-ng/ccu-sun55i-a523.c +++ b/drivers/clk/sunxi-ng/ccu-sun55i-a523.c @@ -331,6 +331,39 @@ static CLK_FIXED_FACTOR_HW(pll_npu_2x_clk, "pll-npu-2x", static CLK_FIXED_FACTOR_HW(pll_npu_1x_clk, "pll-npu-1x", &pll_npu_4x_clk.common.hw, 4, 1, 0); + +/************************************************************************** + * bus clocks * + **************************************************************************/ + +static const struct clk_parent_data ahb_apb0_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, + { .hw = &pll_periph0_600M_clk.hw }, +}; + +static SUNXI_CCU_M_DATA_WITH_MUX(ahb_clk, "ahb", ahb_apb0_parents, 0x510, + 0, 5, /* M */ + 24, 2, /* mux */ + 0); +static SUNXI_CCU_M_DATA_WITH_MUX(apb0_clk, "apb0", ahb_apb0_parents, 0x520, + 0, 5, /* M */ + 24, 2, /* mux */ + 0); + +static const struct clk_parent_data apb1_parents[] = { + { .fw_name = "hosc" }, + { .fw_name = "losc" }, + { .fw_name = "iosc" }, + { .hw = &pll_periph0_600M_clk.hw }, + { .hw = &pll_periph0_480M_clk.common.hw }, +}; +static SUNXI_CCU_M_DATA_WITH_MUX(apb1_clk, "apb1", apb1_parents, 0x524, + 0, 5, /* M */ + 24, 3, /* mux */ + 0); + /* * Contains all clocks that are controlled by a hardware register. They * have a (sunxi) .common member, which needs to be initialised by the common @@ -358,6 +391,9 @@ static struct ccu_common *sun55i_a523_ccu_clks[] = { &pll_ve_clk.common, &pll_audio0_4x_clk.common, &pll_npu_4x_clk.common, + &ahb_clk.common, + &apb0_clk.common, + &apb1_clk.common, }; static struct clk_hw_onecell_data sun55i_a523_hw_clks = { @@ -403,6 +439,9 @@ static struct clk_hw_onecell_data sun55i_a523_hw_clks = { [CLK_PLL_NPU_4X] = &pll_npu_4x_clk.common.hw, [CLK_PLL_NPU_2X] = &pll_npu_2x_clk.hw, [CLK_PLL_NPU] = &pll_npu_1x_clk.hw, + [CLK_AHB] = &ahb_clk.common.hw, + [CLK_APB0] = &apb0_clk.common.hw, + [CLK_APB1] = &apb1_clk.common.hw, }, };