From patchwork Thu Mar 24 01:09:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 12793872 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 F1226C4332F for ; Mon, 28 Mar 2022 16:04:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S239807AbiC1QFx (ORCPT ); Mon, 28 Mar 2022 12:05:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43838 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S237468AbiC1QFv (ORCPT ); Mon, 28 Mar 2022 12:05:51 -0400 Received: from mail.baikalelectronics.ru (mail.baikalelectronics.com [87.245.175.226]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 4AF131BE97; Mon, 28 Mar 2022 09:04:08 -0700 (PDT) Received: from mail.baikalelectronics.ru (unknown [192.168.51.25]) by mail.baikalelectronics.ru (Postfix) with ESMTP id 16B591E28C5; Thu, 24 Mar 2022 04:09:15 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mail.baikalelectronics.ru 16B591E28C5 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baikalelectronics.ru; s=mail; t=1648084155; bh=YVpd6KAsEUbbMZJf57BbrLaVjshlK01mwVdnX4r/674=; h=From:To:CC:Subject:Date:From; b=X1h7mcIUZY7pl39Vrh120xbozF9qqNx9EFw20NXmtC0ad2N90pWVXbVAHms9YvIzk gaXsYyJkJDXvG3bILoUEaCjGKJRW4CU4y645jQ+lE4pnj36IHENIxrQB5rwktB8uxS j47d9g8IwMy9i5BYUw6h1lSBd88inQrKedIL6+1o= Received: from localhost (192.168.168.10) by mail (192.168.51.25) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Thu, 24 Mar 2022 04:09:14 +0300 From: Serge Semin To: Jingoo Han , Gustavo Pimentel , Stephen Boyd , Michael Turquette , Bjorn Helgaas CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Lorenzo Pieralisi , Rob Herring , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Thomas Bogendoerfer , , , , Subject: [PATCH 0/4] clk: Baikal-T1 DDR/PCIe resets and some xGMAC fixes Date: Thu, 24 Mar 2022 04:09:01 +0300 Message-ID: <20220324010905.15589-1-Sergey.Semin@baikalelectronics.ru> MIME-Version: 1.0 X-ClientProxiedBy: MAIL.baikal.int (192.168.51.25) To mail (192.168.51.25) Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org This patchset is an initial one in the series created in the framework of my Baikal-T1 PCIe/eDMA-related work: [1: In-progress] clk: Baikal-T1 DDR/PCIe resets and some xGMAC fixes Link: --you are looking at it-- [2: Stalling] PCI: dwc: Various fixes and cleanups Link: --being submitted afterwards-- [3: Stalling] PCI: dwc: Add dma-ranges/YAML-schema/Baikal-T1 support Link: --being submitted afterwards-- [4: Stalling] dmaengine: dw-edma: Add RP/EP local DMA controllers support Link: --being submitted afterwards-- Since some of the patches in the later patchsets depend on modifications introduced here @Bjorn could you please merge this series through your PCIe subsystem repo? After getting all the required ack'es of course. Short summary regarding this patchset. A few more modifications are introduced here to finally finish the Baikal-T1 CCU unit support up and prepare the code before adding the Baikal-T1 PCIe/xGMAC support. First of all it turned out I specified wrong DW xGMAC PTP reference clock divider in my initial patches. It must be 8, not 10. Secondly I was wrong to add a joint xGMAC Ref and PTP clock instead of having them separately defined. The SoC manual describes these clocks as separate fixed clock wrappers. Finally in order to close the SoC clock/reset support up we need to add the DDR and PCIe interfaces reset controls support. It's done in two steps. First I've moved the reset-controls-related code into a dedicated module. Then the DDR/PCIe reset-control functionality is added. Signed-off-by: Serge Semin Cc: Alexey Malahov Cc: Pavel Parkhomenko Cc: Lorenzo Pieralisi Cc: Rob Herring Cc: "Krzysztof Wilczyński" Cc: Thomas Bogendoerfer Cc: linux-clk@vger.kernel.org Cc: linux-pci@vger.kernel.org Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Serge Semin (4): clk: baikal-t1: Fix invalid xGMAC PTP clock divider clk: baikal-t1: Define shared xGMAC ref/ptp clocks parent clk: baikal-t1: Move reset-controls code into a dedicated module clk: baikal-t1: Add DDR/PCIe directly controlled resets support drivers/clk/baikal-t1/Kconfig | 12 +- drivers/clk/baikal-t1/Makefile | 1 + drivers/clk/baikal-t1/ccu-div.c | 1 + drivers/clk/baikal-t1/ccu-div.h | 6 + drivers/clk/baikal-t1/ccu-rst.c | 373 ++++++++++++++++++++++++++++ drivers/clk/baikal-t1/ccu-rst.h | 64 +++++ drivers/clk/baikal-t1/clk-ccu-div.c | 102 ++------ include/dt-bindings/reset/bt1-ccu.h | 9 + 8 files changed, 482 insertions(+), 86 deletions(-) create mode 100644 drivers/clk/baikal-t1/ccu-rst.c create mode 100644 drivers/clk/baikal-t1/ccu-rst.h