From patchwork Mon Aug 1 22:09:28 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Fainelli X-Patchwork-Id: 1662735 Return-Path: X-Original-To: incoming-dt@patchwork.ozlabs.org Delivered-To: patchwork-incoming-dt@bilbo.ozlabs.org Authentication-Results: bilbo.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20210112 header.b=PiL+wNbe; dkim-atps=neutral Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=vger.kernel.org (client-ip=2620:137:e000::1:20; helo=out1.vger.email; envelope-from=devicetree-owner@vger.kernel.org; receiver=) Received: from out1.vger.email (out1.vger.email [IPv6:2620:137:e000::1:20]) by bilbo.ozlabs.org (Postfix) with ESMTP id 4LxXNM4rJnz9sB4 for ; Tue, 2 Aug 2022 08:09:39 +1000 (AEST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232927AbiHAWJg (ORCPT ); Mon, 1 Aug 2022 18:09:36 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56034 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231190AbiHAWJg (ORCPT ); Mon, 1 Aug 2022 18:09:36 -0400 Received: from mail-pj1-x1033.google.com (mail-pj1-x1033.google.com [IPv6:2607:f8b0:4864:20::1033]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3D523DF7D; Mon, 1 Aug 2022 15:09:35 -0700 (PDT) Received: by mail-pj1-x1033.google.com with SMTP id s5-20020a17090a13c500b001f4da9ffe5fso6536546pjf.5; Mon, 01 Aug 2022 15:09:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc; bh=9Z8J3irksMZXis7Ie9brihlp5V92bNnWK5MaHlycXJo=; b=PiL+wNbeYjYPPXoxsUcMIi1LeUIRuIw6u9OiR1j3/5sio2e+qGd88Cbri1RfgBKSUo XJ+yWyVyTtbsBzo0HX61BtxEn+Sm1t2U8+ooX4EdtP/Z72p6pTTYFdweoliDLdFeZwmb PDiQhMStGlAVpcC4S5TLlY8sfLc/cYcMgi1uQw8VnEYfb+TGI64IvluEeXH8i383FyDz fGcTvKVeJczaw2DaTMPa5MroHev6cVgl0lrOo+tukNhtgoqs6+2emyLJ8NzWJkKWYuE/ +FdJfTjDducUqsRzq8AMtqfn8gfxchW5vUfGbeOgUW1nDI0xFgUaE9FpEqyFGhEhWIQP Ok8Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc; bh=9Z8J3irksMZXis7Ie9brihlp5V92bNnWK5MaHlycXJo=; b=YsRIntJ0ic4w6jrcQfKTb2JjsxyBSeywKW8jwYDb+cb7CMhTNy6+ZVFlGJsLXmZcGG p4cUsuyge4XlLNVfLwt05+ywOMxAHOCg6+04yDbdCKERZinl5ftKezfnSOxEVhbsPKMA epJNogZHdtQYGPeoGhUegmYU+Je/YRZuR8GOHcp1jkMUQd2M2lX6DETnFgNqxFA3kDrD q9nNvV3ogVW5ZVk4CEoRL6lv32TRPZzWmeUUAqP0mKoqZPZwuUW8BeIcRjUgDoe8laGL TJUZBmuIQUx7a7zLFXlQYh3+XDgDGHu+nqPVbF+AExz3mHji/FYKSz2fnDswWvtZK1zZ M1Iw== X-Gm-Message-State: ACgBeo29I3Xn2I+PG/xlEb2UbtIDPXWLPE3lq6945bDo34IyM80Zszdt eUz83cpepROdS47x4ESeq0vBjlSh5YA= X-Google-Smtp-Source: AA6agR7iWd0Wn7UJ43mQfrjRZalF3kIoRd7+rxXZ8UFJ5UhnkR77njj5iyB/cVMOwmt2qJP+K0VZWw== X-Received: by 2002:a17:902:cec4:b0:16d:7d8c:4be with SMTP id d4-20020a170902cec400b0016d7d8c04bemr17802366plg.139.1659391774294; Mon, 01 Aug 2022 15:09:34 -0700 (PDT) Received: from fainelli-desktop.igp.broadcom.net ([192.19.223.252]) by smtp.gmail.com with ESMTPSA id g15-20020a1709029f8f00b001637529493esm10136969plq.66.2022.08.01.15.09.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 01 Aug 2022 15:09:33 -0700 (PDT) From: Florian Fainelli To: linux-kernel@vger.kernel.org Cc: Florian Fainelli , Broadcom internal kernel review list , Rob Herring , Krzysztof Kozlowski , linux-arm-kernel@lists.infradead.org (moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE), devicetree@vger.kernel.org (open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS) Subject: [PATCH v3 0/3] Add Broadcom STB memory controller driver Date: Mon, 1 Aug 2022 15:09:28 -0700 Message-Id: <20220801220931.181531-1-f.fainelli@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Hi Krzysztof, This small patch series adds basic support for controlling self-refresh power down on Broadcom STB memory controllers. We might be able to contribute more features to the memory controller driver in the future like accurate reporting of the memory type, timings, and possibly some performance counters. Changes in v3: - made 'frequency' property optional to avoid introducing warnings for existing BMIPS and BCM7445 DTS files - updated sysfs document to use a shorter and universal path Changes in v2: - merged the v1 first two patches - added a sysfs document describing attributes exposed - addressed feedback from Krzysztof regarding style and API usage Florian Fainelli (3): dt-bindings: memory-controller: Document Broadcom STB MEMC Documentation: sysfs: Document Broadcom STB memc sysfs knobs memory: Add Broadcom STB memory controller driver .../ABI/testing/sysfs-platform-brcmstb-memc | 15 + .../bindings/arm/bcm/brcm,brcmstb.txt | 11 +- .../brcm,brcmstb-memc-ddr.yaml | 52 +++ drivers/memory/Kconfig | 9 + drivers/memory/Makefile | 1 + drivers/memory/brcmstb_memc.c | 302 ++++++++++++++++++ 6 files changed, 381 insertions(+), 9 deletions(-) create mode 100644 Documentation/ABI/testing/sysfs-platform-brcmstb-memc create mode 100644 Documentation/devicetree/bindings/memory-controllers/brcm,brcmstb-memc-ddr.yaml create mode 100644 drivers/memory/brcmstb_memc.c