Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753557AbdIDJsu (ORCPT ); Mon, 4 Sep 2017 05:48:50 -0400 Received: from us01smtprelay-2.synopsys.com ([198.182.60.111]:58701 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753409AbdIDJst (ORCPT ); Mon, 4 Sep 2017 05:48:49 -0400 From: Eugeniy Paltsev To: linux-snps-arc@lists.infradead.org Cc: linux-kernel@vger.kernel.org, Vineet Gupta , Alexey Brodkin , Rob Herring , devicetree@vger.kernel.org, Eugeniy Paltsev Subject: [PATCH] ARC: HSDK: Add core pll node to DT to manage cpu clk Date: Mon, 4 Sep 2017 12:48:43 +0300 Message-Id: <20170904094843.32207-1-Eugeniy.Paltsev@synopsys.com> X-Mailer: git-send-email 2.9.3 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1509 Lines: 56 Add core pll node (core_clk) to manage cpu frequency. core_clk node represents pll itself. input_clk node represents clock signal source (basically xtal) which comes to pll input. Signed-off-by: Eugeniy Paltsev --- arch/arc/boot/dts/hsdk.dts | 11 +++++++++-- arch/arc/configs/hsdk_defconfig | 1 + 2 files changed, 10 insertions(+), 2 deletions(-) diff --git a/arch/arc/boot/dts/hsdk.dts b/arch/arc/boot/dts/hsdk.dts index 229d13a..8412669 100644 --- a/arch/arc/boot/dts/hsdk.dts +++ b/arch/arc/boot/dts/hsdk.dts @@ -57,10 +57,10 @@ }; }; - core_clk: core-clk { + input_clk: input-clk { #clock-cells = <0>; compatible = "fixed-clock"; - clock-frequency = <500000000>; + clock-frequency = <33333333>; }; cpu_intc: cpu-interrupt-controller { @@ -102,6 +102,13 @@ ranges = <0x00000000 0xf0000000 0x10000000>; + core_clk: core-clk@0 { + compatible = "snps,hsdk-core-pll-clock"; + reg = <0x00 0x10>, <0x14B8 0x4>; + #clock-cells = <0>; + clocks = <&input_clk>; + }; + serial: serial@5000 { compatible = "snps,dw-apb-uart"; reg = <0x5000 0x100>; diff --git a/arch/arc/configs/hsdk_defconfig b/arch/arc/configs/hsdk_defconfig index a7114cd..3f35f52 100644 --- a/arch/arc/configs/hsdk_defconfig +++ b/arch/arc/configs/hsdk_defconfig @@ -62,6 +62,7 @@ CONFIG_MMC=y CONFIG_MMC_SDHCI=y CONFIG_MMC_SDHCI_PLTFM=y CONFIG_MMC_DW=y +CONFIG_CLK_HSDK=y # CONFIG_IOMMU_SUPPORT is not set CONFIG_EXT3_FS=y CONFIG_VFAT_FS=y -- 2.9.3