From patchwork Tue May 3 20:57:18 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Serge Semin X-Patchwork-Id: 12836288 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 56646C433EF for ; Tue, 3 May 2022 20:57:33 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238576AbiECVBE (ORCPT ); Tue, 3 May 2022 17:01:04 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36110 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231552AbiECVBE (ORCPT ); Tue, 3 May 2022 17:01:04 -0400 Received: from mail.baikalelectronics.ru (mail.baikalelectronics.com [87.245.175.226]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 72F991EC7B; Tue, 3 May 2022 13:57:30 -0700 (PDT) Received: from mail.baikalelectronics.ru (unknown [192.168.51.25]) by mail.baikalelectronics.ru (Postfix) with ESMTP id D8D5316A9; Tue, 3 May 2022 23:58:01 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mail.baikalelectronics.ru D8D5316A9 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baikalelectronics.ru; s=mail; t=1651611483; bh=9UF9RAJ5A/A23HPF4BnRRw1WEi3wipp0ffStvYxeUdM=; h=From:To:CC:Subject:Date:From; b=K6GNSEFUm8YgaTGfpPhxtNWidBgNu8i7veb0Q5lPxX/RBpU26MKq4Sbf1mSqDl5Ie QA+DFMbYHyYCwoNtIWYKG8l0krbbQFZWAw60bIXg//llTQ6TXlU9y/wQ0CjN403Ie9 XVqo6F4NL8uvk75BFwxDwyKTWgJrJVcW08TpDOTo= Received: from localhost (192.168.53.207) by mail (192.168.51.25) with Microsoft SMTP Server (TLS) id 15.0.1395.4; Tue, 3 May 2022 23:57:27 +0300 From: Serge Semin To: Jingoo Han , Gustavo Pimentel , Stephen Boyd , Philipp Zabel , Michael Turquette , Lorenzo Pieralisi CC: Serge Semin , Serge Semin , Alexey Malahov , Pavel Parkhomenko , Rob Herring , =?utf-8?q?Krzysztof_Wilczy=C5=84ski?= , Bjorn Helgaas , Thomas Bogendoerfer , , , , Subject: [PATCH v3 0/4] clk: Baikal-T1 DDR/PCIe resets and some xGMAC fixes Date: Tue, 3 May 2022 23:57:18 +0300 Message-ID: <20220503205722.24755-1-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-pci@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 v3] clk: Baikal-T1 DDR/PCIe resets and some xGMAC fixes Link: https://lore.kernel.org/linux-pci/20220330144320.27039-1-Sergey.Semin@baikalelectronics.ru/ [2: In-progress v1] PCI: dwc: Various fixes and cleanups Link: https://lore.kernel.org/linux-pci/20220324012524.16784-1-Sergey.Semin@baikalelectronics.ru/ [3: In-progress v1] PCI: dwc: Add dma-ranges/YAML-schema/Baikal-T1 support Link: https://lore.kernel.org/linux-pci/20220324013734.18234-1-Sergey.Semin@baikalelectronics.ru/ [4: In-progress v1] dmaengine: dw-edma: Add RP/EP local DMA controllers support Link: https://lore.kernel.org/linux-pci/20220324014836.19149-1-Sergey.Semin@baikalelectronics.ru/ Since some of the patches in the later patchsets depend on the modifications introduced here, @Lorenzo 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. Link: https://lore.kernel.org/linux-pci/20220324010905.15589-1-Sergey.Semin@baikalelectronics.ru/ Changelog v2: - Resubmit the series with adding @Philipp to the list of the recipients. Link: https://lore.kernel.org/linux-pci/20220330144320.27039-1-Sergey.Semin@baikalelectronics.ru/ Changelog v3: - Rebased from v5.17 onto v5.18-rc3. - No comments. Just resend the series. Signed-off-by: Serge Semin Cc: Alexey Malahov Cc: Pavel Parkhomenko Cc: Rob Herring Cc: "Krzysztof Wilczyński" Cc: Bjorn Helgaas 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