From patchwork Wed Oct 19 06:29:10 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinbo Zhu X-Patchwork-Id: 4452 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp164478wrs; Tue, 18 Oct 2022 23:43:47 -0700 (PDT) X-Google-Smtp-Source: AMsMyM7ASX30S4ean4AJxiYXlvysRkDMwDHkFYmuH2tI2++HnwItK5xbHdSi65tI1aGsojcKOMOf X-Received: by 2002:a17:907:2d8a:b0:78d:4448:e96c with SMTP id gt10-20020a1709072d8a00b0078d4448e96cmr5397848ejc.199.1666161827234; Tue, 18 Oct 2022 23:43:47 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666161827; cv=none; d=google.com; s=arc-20160816; b=EupzgpSdImDPUHCRToF4T6peG1sYWbaMG/snzEk0AYQk+I9JrlbqZR2Hjr3hzIsmDA Q3eRQpYC/CSBM5twnt3FOedYNtPJTK0CabSa9xE3qSbclgVI8prNXS9npY8qi4W/OKyG LMlqYX0+fRC7KU7atVcDykhuu1PBvzmj52VEPfxdnZkmf5P2Z1eWvO/9gvbe0CAwW0R0 JXb1NIjyMjhkdbLdX/50QoWJFF00zZac+HD4sZEK/R+vV8IN7Q9nrSq4gHcEEZUi5yIq e58n1w00mGt1OxSCf8K2dV5Kxsfht53+Xd2grLHcHgefA3I4Va7vkK6CLzZhsf6XPLiP NtpA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:to:from; bh=29GfAASfVeIuKtO5DtSVDq6rEW1L44M2pW65VfUoGO4=; b=k+LadPzTSgZ0OzEE5P57ZPerbh9pa2ovpL0g/Fn7k3wRHpjtkCC2JyTKe42LBfCx/x EvwTCgEuQO+aaGYkhENovQ8E9eIovrQOCCTyi+2E2XtknQlhQWCZFCtJy3wpf+lD3eS6 nKsb44BI6RFixw/JoqxCRcq/EgQ6nvqo2Bo/Zw6jMfu5AHmi2v+gEXRDfRNUnKwpYzKE mJdSYUJ0ti1VTXDa2DiEYlKgU3Hhl6L/j02S4WEi8QP9VZ7pFgtD+9lIXLeHwEdu5Ygr kAGj/Ykmb+TeUWc7RSBP47QsiK7M6XMld2o1Qdk0tDABfjMA72JnfYu9OrrOYph4018Z Y+Eg== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id s4-20020a17090699c400b0078badb3816dsi12954242ejn.952.2022.10.18.23.43.23; Tue, 18 Oct 2022 23:43:47 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230060AbiJSG3d (ORCPT + 99 others); Wed, 19 Oct 2022 02:29:33 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55784 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229787AbiJSG31 (ORCPT ); Wed, 19 Oct 2022 02:29:27 -0400 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 157E4112C; Tue, 18 Oct 2022 23:29:24 -0700 (PDT) Received: from loongson.cn (unknown [10.180.13.64]) by gateway (Coremail) with SMTP id _____8CxjdpDmU9jdagAAA--.3583S3; Wed, 19 Oct 2022 14:29:23 +0800 (CST) Received: from localhost.localdomain (unknown [10.180.13.64]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxXuA9mU9jHicBAA--.4688S2; Wed, 19 Oct 2022 14:29:23 +0800 (CST) From: Yinbo Zhu To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Huacai Chen , WANG Xuerui , Jiaxun Yang , Jianmin Lv , Yang Li , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, Yinbo Zhu Subject: [PATCH v2 1/3] dt-bindings: clock: add loongson2 clock include file Date: Wed, 19 Oct 2022 14:29:10 +0800 Message-Id: <20221019062912.3463-1-zhuyinbo@loongson.cn> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8CxXuA9mU9jHicBAA--.4688S2 X-CM-SenderInfo: 52kx5xhqerqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBjvJXoW7AF4UWr4xtrykArWxtw4ruFg_yoW8KF43pr 4kCFWfKry7tF42kwsYgF17Kr13ur4xC3W7AF47uF1UAFnrJw18JrnF9F1fAFZrXr4kCFWx Z3Z7Cw409FZrXw7anT9S1TB71UUUUjDqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj qI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUIcSsGvfJTRUUU bfkFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AKwVWUXVWUAwA2ocxC64 kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28E F7xvwVC0I7IYx2IY6xkF7I0E14v26r4j6F4UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr1j6F4UJwAaw2AFwI0_JF0_Jw1le2I262IYc4CY 6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27wAqx4xG64xvF2IEw4CE5I8CrV C2j2WlYx0E2Ix0cI8IcVAFwI0_Jw0_WrylYx0Ex4A2jsIE14v26r4j6F4UMcvjeVCFs4IE 7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY1x0262kKe7AKxVWUAVWUtwCF04k20xvY0x 0EwIxGrwCF04k20xvE74AGY7Cv6cx26rWl4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxYO2xF xVAFwI0_JF0_Jw1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWw C2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_Gr0_ Xr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJV WUCwCI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIY CTnIWIevJa73UjIFyTuYvjxUc9mRUUUUU X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS, 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: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747087761011495362?= X-GMAIL-MSGID: =?utf-8?q?1747097303914779322?= This file defines all loongson2 soc clock indexes, it should be included in the device tree in which there's device using the clocks. Signed-off-by: Yinbo Zhu Acked-by: Krzysztof Kozlowski --- Change in v2: 1. Make filename matching the compatible. 2. Drop weird indentation after define. 3. Add dual license. 4. Use subject prefixes matching the subsystem. MAINTAINERS | 6 ++++ include/dt-bindings/clock/loongson,ls2k-clk.h | 29 +++++++++++++++++++ 2 files changed, 35 insertions(+) create mode 100644 include/dt-bindings/clock/loongson,ls2k-clk.h diff --git a/MAINTAINERS b/MAINTAINERS index a162b6fba6fe..401176784853 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11914,6 +11914,12 @@ S: Maintained F: Documentation/devicetree/bindings/timer/loongson,ls2k-hpet.yaml F: drivers/clocksource/loongson2_hpet.c +LOONGSON2 SOC SERIES CLOCK DRIVER +M: Yinbo Zhu +L: linux-clk@vger.kernel.org +S: Maintained +F: include/dt-bindings/clock/loongson,ls2k-clk.h + LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) M: Sathya Prakash M: Sreekanth Reddy diff --git a/include/dt-bindings/clock/loongson,ls2k-clk.h b/include/dt-bindings/clock/loongson,ls2k-clk.h new file mode 100644 index 000000000000..db1e27e792ff --- /dev/null +++ b/include/dt-bindings/clock/loongson,ls2k-clk.h @@ -0,0 +1,29 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */ +/* + * Author: Yinbo Zhu + * Copyright (C) 2022-2023 Loongson Technology Corporation Limited + */ + +#ifndef __DT_BINDINGS_CLOCK_LOONGSON2_H +#define __DT_BINDINGS_CLOCK_LOONGSON2_H + +#define LOONGSON2_REF_100M 0 +#define LOONGSON2_NODE_PLL 1 +#define LOONGSON2_DDR_PLL 2 +#define LOONGSON2_DC_PLL 3 +#define LOONGSON2_PIX0_PLL 4 +#define LOONGSON2_PIX1_PLL 5 +#define LOONGSON2_NODE_CLK 6 +#define LOONGSON2_HDA_CLK 7 +#define LOONGSON2_GPU_CLK 8 +#define LOONGSON2_DDR_CLK 9 +#define LOONGSON2_GMAC_CLK 10 +#define LOONGSON2_DC_CLK 11 +#define LOONGSON2_APB_CLK 12 +#define LOONGSON2_USB_CLK 13 +#define LOONGSON2_SATA_CLK 14 +#define LOONGSON2_PIX0_CLK 15 +#define LOONGSON2_PIX1_CLK 16 +#define LOONGSON2_CLK_END 17 + +#endif From patchwork Wed Oct 19 06:25:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinbo Zhu X-Patchwork-Id: 4448 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp163745wrs; Tue, 18 Oct 2022 23:40:56 -0700 (PDT) X-Google-Smtp-Source: AMsMyM4hn3/T1yQ26l4XZT0KAsXUMrb+K7IS5y48fVxuSdB6Uk0KvymqyeLG+kGtoxhmeoPh71IA X-Received: by 2002:a17:907:8688:b0:791:91a0:fdb3 with SMTP id qa8-20020a170907868800b0079191a0fdb3mr5138269ejc.499.1666161656381; Tue, 18 Oct 2022 23:40:56 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666161656; cv=none; d=google.com; s=arc-20160816; b=mMfX++Sj5iQukKeONGjX6E6G8A/oFQhoMev6HRGbLFy2SrH1cUnwQIXx3rzSjS+k4d O279KKUIaLEycR9GNTKTe/KmJFAGYWXyKaQ2Gy4G2yl0BPUkV0+ISxnLIvPoNdEGgba2 K6kxx2OS27fw7XoHt0RDfbX7XApLhaz3PMtnK+Y35lQeUT/CshNeTIOftozVSW8Os7ll ZL6TDM/bJB3Iqo2vbO+hpbhy1+CQ056C8ceV6M1b0TB7Oou0mxkH3YV8UbfO+A3Uk0fw va+ZaL4ZLzwMC/QLzX3aRHqPK9KXywIG9I8B5haxJbXkD0lM7IarsbLkav3BmIBSjIZW rVDQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-transfer-encoding:mime-version :message-id:date:subject:to:from; bh=Ca5iZlrDwpA0tNBxaU0Gx+flrRnY+hXZx1yeuv8TRKE=; b=YR5m/KUc0GSDVQ5Y0XDumT+6JmIFIZSiwU/LgSpq+2X6wPMeXeLNCXVRebTbWo0Rgj aWsoxtGzM4OWAKNqsXU5hOpqQek1VylB04jvYaXhK0UhfNhOj/fWTdLM1tO8+dIRZl9n dRLvAvjfKFD3EbNPV2hR4oMV2PaCwSiQ4wgn+7M6LUTiF32dI2UEOLqWg4dy/8Uj44lP z4Db9Cx5Zcgs39qBDFPC6en5ASNMQPx7kGq/X7DVbXRGoBUJ4B/jBYC4R/c5OsMHjpRY JoMFSilR7BHu4HdEwBPqg9DtPbomqVxWIPbcj+6LITBkhqlaS2/+i8p79lRX4yQsX1Sz EygA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id y4-20020a056402440400b0045c2174074asi16539711eda.350.2022.10.18.23.40.31; Tue, 18 Oct 2022 23:40:56 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229756AbiJSGZW (ORCPT + 99 others); Wed, 19 Oct 2022 02:25:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52574 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229714AbiJSGZQ (ORCPT ); Wed, 19 Oct 2022 02:25:16 -0400 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 809494F68B; Tue, 18 Oct 2022 23:25:13 -0700 (PDT) Received: from loongson.cn (unknown [10.180.13.64]) by gateway (Coremail) with SMTP id _____8Dx_7dImE9jKKgAAA--.1604S3; Wed, 19 Oct 2022 14:25:12 +0800 (CST) Received: from localhost.localdomain (unknown [10.180.13.64]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxLuJCmE9jnCYBAA--.4782S2; Wed, 19 Oct 2022 14:25:11 +0800 (CST) From: Yinbo Zhu To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Huacai Chen , WANG Xuerui , Jiaxun Yang , Jianmin Lv , Yang Li , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, Yinbo Zhu Subject: [PATCH v2 2/3] clk: clk-loongson2: add clock controller driver support Date: Wed, 19 Oct 2022 14:25:03 +0800 Message-Id: <20221019062503.3114-1-zhuyinbo@loongson.cn> X-Mailer: git-send-email 2.20.1 MIME-Version: 1.0 X-CM-TRANSID: AQAAf8CxLuJCmE9jnCYBAA--.4782S2 X-CM-SenderInfo: 52kx5xhqerqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBjvJXoW3CFy8Gr47GryDCryfCF18uFg_yoWkWFyDpF yfA3y5WrWjqF4UuwsxtryDGrn8AasFk3W7AFW3Ga4qkrZ7Xa4rWr4xAFyxAF4UA3ykAFW2 vFZYgrWUCF45XwUanT9S1TB71UUUUj7qnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj qI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUIcSsGvfJTRUUU bfkFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AKwVWUXVWUAwA2ocxC64 kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26r4j6ryUM28E F7xvwVC0I7IYx2IY6xkF7I0E14v26r4j6F4UM28EF7xvwVC2z280aVAFwI0_Gr1j6F4UJw A2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_Gr1j6F4UJwAaw2AFwI0_JF0_Jw1le2I262IYc4CY 6c8Ij28IcVAaY2xG8wAqjxCEc2xF0cIa020Ex4CE44I27wAqx4xG64xvF2IEw4CE5I8CrV C2j2WlYx0E2Ix0cI8IcVAFwI0_JF0_Jw1lYx0Ex4A2jsIE14v26r4j6F4UMcvjeVCFs4IE 7xkEbVWUJVW8JwACjcxG0xvY0x0EwIxGrwCY1x0262kKe7AKxVWUAVWUtwCF04k20xvY0x 0EwIxGrwCF04k20xvE74AGY7Cv6cx26rWl4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1l4IxYO2xF xVAFwI0_JF0_Jw1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8GjcxK67AKxVWUGVWUWw C2zVAF1VAY17CE14v26r1q6r43MIIYrxkI7VAKI48JMIIF0xvE2Ix0cI8IcVAFwI0_JFI_ Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r1j6r4UMIIF0xvE42xK8VAvwI8IcIk0rVWUJV WUCwCI42IY6I8E87Iv67AKxVW8JVWxJwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4UJbIY CTnIWIevJa73UjIFyTuYvjxUc2Q6DUUUU X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS, 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: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747087840585851030?= X-GMAIL-MSGID: =?utf-8?q?1747097124944115725?= This driver provides support for clock controller on Loongson2 SoC , the Loongson2 SoC uses a 100MHz clock as the PLL reference clock , there are five independent PLLs inside, each of which PLL can provide up to three sets of frequency dependent clock outputs. Signed-off-by: Yinbo Zhu --- Change in v2: 1. Update the include filename. 2. Change string from refclk/REFCLK to ref/REF. MAINTAINERS | 1 + arch/loongarch/Kconfig | 1 + arch/loongarch/kernel/time.c | 2 + drivers/clk/Kconfig | 9 ++ drivers/clk/Makefile | 1 + drivers/clk/clk-loongson2.c | 285 +++++++++++++++++++++++++++++++++++ 6 files changed, 299 insertions(+) create mode 100644 drivers/clk/clk-loongson2.c diff --git a/MAINTAINERS b/MAINTAINERS index 401176784853..a4de8f1b81f0 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11918,6 +11918,7 @@ LOONGSON2 SOC SERIES CLOCK DRIVER M: Yinbo Zhu L: linux-clk@vger.kernel.org S: Maintained +F: drivers/clk/clk-loongson2.c F: include/dt-bindings/clock/loongson,ls2k-clk.h LSILOGIC MPT FUSION DRIVERS (FC/SAS/SPI) diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 26aeb1408e56..8b65f349cd6e 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -122,6 +122,7 @@ config LOONGARCH select USE_PERCPU_NUMA_NODE_ID select USER_STACKTRACE_SUPPORT select ZONE_DMA32 + select COMMON_CLK config 32BIT bool diff --git a/arch/loongarch/kernel/time.c b/arch/loongarch/kernel/time.c index 74f34c74679a..0d8b37763086 100644 --- a/arch/loongarch/kernel/time.c +++ b/arch/loongarch/kernel/time.c @@ -12,6 +12,7 @@ #include #include #include +#include #include #include @@ -214,6 +215,7 @@ int __init constant_clocksource_init(void) void __init time_init(void) { + of_clk_init(NULL); #ifdef CONFIG_TIMER_PROBE timer_probe(); #endif diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig index 48f8f4221e21..88620f86373f 100644 --- a/drivers/clk/Kconfig +++ b/drivers/clk/Kconfig @@ -428,6 +428,15 @@ config COMMON_CLK_K210 help Support for the Canaan Kendryte K210 RISC-V SoC clocks. +config COMMON_CLK_LOONGSON2 + bool "Clock driver for Loongson2 SoC" + depends on COMMON_CLK && OF + help + This driver provides support for Clock Controller that base on + Common Clock Framework Controller (CCF) on Loongson2 SoC. The + Clock Controller can generates and supplies clock to various + peripherals within the SoC. + source "drivers/clk/actions/Kconfig" source "drivers/clk/analogbits/Kconfig" source "drivers/clk/baikal-t1/Kconfig" diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile index d5db170d38d2..8ccc7436052f 100644 --- a/drivers/clk/Makefile +++ b/drivers/clk/Makefile @@ -75,6 +75,7 @@ obj-$(CONFIG_COMMON_CLK_RS9_PCIE) += clk-renesas-pcie.o obj-$(CONFIG_COMMON_CLK_VC5) += clk-versaclock5.o obj-$(CONFIG_COMMON_CLK_WM831X) += clk-wm831x.o obj-$(CONFIG_COMMON_CLK_XGENE) += clk-xgene.o +obj-$(CONFIG_COMMON_CLK_LOONGSON2) += clk-loongson2.o # please keep this section sorted lexicographically by directory path name obj-y += actions/ diff --git a/drivers/clk/clk-loongson2.c b/drivers/clk/clk-loongson2.c new file mode 100644 index 000000000000..9b753821052c --- /dev/null +++ b/drivers/clk/clk-loongson2.c @@ -0,0 +1,285 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* + * Author: Yinbo Zhu + * Copyright (C) 2022-2023 Loongson Technology Corporation Limited + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define LOONGSON2_PLL_MULT_SHIFT 32 +#define LOONGSON2_PLL_MULT_WIDTH 10 +#define LOONGSON2_PLL_DIV_SHIFT 26 +#define LOONGSON2_PLL_DIV_WIDTH 6 +#define LOONGSON2_APB_FREQSCALE_SHIFT 20 +#define LOONGSON2_APB_FREQSCALE_WIDTH 3 +#define LOONGSON2_USB_FREQSCALE_SHIFT 16 +#define LOONGSON2_USB_FREQSCALE_WIDTH 3 +#define LOONGSON2_SATA_FREQSCALE_SHIFT 12 +#define LOONGSON2_SATA_FREQSCALE_WIDTH 3 + +void __iomem *loongson2_pll_base; +static DEFINE_SPINLOCK(loongson2_clk_lock); +static struct clk_hw **hws; +static struct clk_hw_onecell_data *clk_hw_data; + +static struct clk_hw *loongson2_clk_register(struct device *dev, + const char *name, + const char *parent_name, + const struct clk_ops *ops, + unsigned long flags) +{ + int ret; + struct clk_hw *hw; + struct clk_init_data init; + + /* allocate the divider */ + hw = kzalloc(sizeof(*hw), GFP_KERNEL); + if (!hw) + return ERR_PTR(-ENOMEM); + + init.name = name; + init.ops = ops; + init.flags = flags | CLK_IS_BASIC; + init.parent_names = (parent_name ? &parent_name : NULL); + init.num_parents = (parent_name ? 1 : 0); + hw->init = &init; + + /* register the clock */ + ret = clk_hw_register(dev, hw); + if (ret) { + kfree(hw); + hw = ERR_PTR(ret); + } + + return hw; +} + +static struct clk_hw *loongson2_clk_pll_register(const char *name, + const char *parent, void __iomem *reg) +{ + u64 val; + u32 mult = 1, div = 1; + + val = readq((void *)reg); + + mult = (val >> LOONGSON2_PLL_MULT_SHIFT) & + clk_div_mask(LOONGSON2_PLL_MULT_WIDTH); + div = (val >> LOONGSON2_PLL_DIV_SHIFT) & + clk_div_mask(LOONGSON2_PLL_DIV_WIDTH); + + return clk_hw_register_fixed_factor(NULL, name, parent, + CLK_SET_RATE_PARENT, mult, div); +} + +static unsigned long loongson2_apb_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u64 val; + u32 mult; + unsigned long rate; + + val = readq((void *)(loongson2_pll_base + 0x50)); + + mult = (val >> LOONGSON2_APB_FREQSCALE_SHIFT) & + clk_div_mask(LOONGSON2_APB_FREQSCALE_WIDTH); + + rate = parent_rate * (mult + 1); + do_div(rate, 8); + + return rate; +} + +static const struct clk_ops loongson2_apb_clk_ops = { + .recalc_rate = loongson2_apb_recalc_rate, +}; + +static unsigned long loongson2_usb_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u64 val; + u32 mult; + unsigned long rate; + + val = readq((void *)(loongson2_pll_base + 0x50)); + + mult = (val >> LOONGSON2_USB_FREQSCALE_SHIFT) & + clk_div_mask(LOONGSON2_USB_FREQSCALE_WIDTH); + + rate = parent_rate * (mult + 1); + do_div(rate, 8); + + return rate; +} + +static const struct clk_ops loongson2_usb_clk_ops = { + .recalc_rate = loongson2_usb_recalc_rate, +}; + +static unsigned long loongson2_sata_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + u64 val; + u32 mult; + unsigned long rate; + + val = readq((void *)(loongson2_pll_base + 0x50)); + + mult = (val >> LOONGSON2_SATA_FREQSCALE_SHIFT) & + clk_div_mask(LOONGSON2_SATA_FREQSCALE_WIDTH); + + rate = parent_rate * (mult + 1); + do_div(rate, 8); + + return rate; +} + +static const struct clk_ops loongson2_sata_clk_ops = { + .recalc_rate = loongson2_sata_recalc_rate, +}; + +static void loongson2_check_clk_hws(struct clk_hw *clks[], unsigned int count) +{ + unsigned int i; + + for (i = 0; i < count; i++) + if (IS_ERR(clks[i])) + pr_err("Loongson2 clk %u: register failed with %ld\n" + , i, PTR_ERR(clks[i])); +} + +static struct clk_hw *loongson2_obtain_fixed_clk_hw( + struct device_node *np, + const char *name) +{ + struct clk *clk; + + clk = of_clk_get_by_name(np, name); + if (IS_ERR(clk)) + return ERR_PTR(-ENOENT); + + return __clk_get_hw(clk); +} + +static void __init loongson2_clocks_init(struct device_node *np) +{ + loongson2_pll_base = of_iomap(np, 0); + + if (!loongson2_pll_base) { + pr_err("clk: unable to map loongson2 clk registers\n"); + goto err; + } + + clk_hw_data = kzalloc(struct_size(clk_hw_data, hws, LOONGSON2_CLK_END), + GFP_KERNEL); + if (WARN_ON(!clk_hw_data)) + goto err; + + clk_hw_data->num = LOONGSON2_CLK_END; + hws = clk_hw_data->hws; + + hws[LOONGSON2_REF_100M] = loongson2_obtain_fixed_clk_hw(np, + "ref_100m"); + + hws[LOONGSON2_NODE_PLL] = loongson2_clk_pll_register("node_pll_clk", + "ref_100m", + loongson2_pll_base); + + hws[LOONGSON2_DDR_PLL] = loongson2_clk_pll_register("ddr_pll_clk", + "ref_100m", + loongson2_pll_base + 0x10); + + hws[LOONGSON2_DC_PLL] = loongson2_clk_pll_register("dc_pll_clk", + "ref_100m", + loongson2_pll_base + 0x20); + + hws[LOONGSON2_PIX0_PLL] = loongson2_clk_pll_register("pix0_pll_clk", + "ref_100m", + loongson2_pll_base + 0x30); + + hws[LOONGSON2_PIX1_PLL] = loongson2_clk_pll_register("pix1_pll_clk", + "ref_100m", + loongson2_pll_base + 0x40); + + hws[LOONGSON2_NODE_CLK] = clk_hw_register_divider(NULL, "node_clk", + "node_pll_clk", 0, + loongson2_pll_base + 0x8, 0, + 6, CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + /* + * The hda_clk divisor in the upper 32bits and the clk-prodiver + * layer code doesn't support 64bit io operation thus a conversion + * is required that subtract shift by 32 and add 4byte to the hda + * address + */ + hws[LOONGSON2_HDA_CLK] = clk_hw_register_divider(NULL, "hda_clk", + "ddr_pll_clk", 0, + loongson2_pll_base + 0x22, 12, + 7, CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + hws[LOONGSON2_GPU_CLK] = clk_hw_register_divider(NULL, "gpu_clk", + "ddr_pll_clk", 0, + loongson2_pll_base + 0x18, 22, + 6, CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + hws[LOONGSON2_DDR_CLK] = clk_hw_register_divider(NULL, "ddr_clk", + "ddr_pll_clk", 0, + loongson2_pll_base + 0x18, 0, + 6, CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + hws[LOONGSON2_GMAC_CLK] = clk_hw_register_divider(NULL, "gmac_clk", + "dc_pll_clk", 0, + loongson2_pll_base + 0x28, 22, + 6, CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + hws[LOONGSON2_DC_CLK] = clk_hw_register_divider(NULL, "dc_clk", + "dc_pll_clk", 0, + loongson2_pll_base + 0x28, 0, + 6, CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + hws[LOONGSON2_APB_CLK] = loongson2_clk_register(NULL, "apb_clk", + "gmac_clk", + &loongson2_apb_clk_ops, 0); + + hws[LOONGSON2_USB_CLK] = loongson2_clk_register(NULL, "usb_clk", + "gmac_clk", + &loongson2_usb_clk_ops, 0); + + hws[LOONGSON2_SATA_CLK] = loongson2_clk_register(NULL, "sata_clk", + "gmac_clk", + &loongson2_sata_clk_ops, 0); + + hws[LOONGSON2_PIX0_CLK] = clk_hw_register_divider(NULL, "pix0_clk", + "pix0_pll_clk", 0, + loongson2_pll_base + 0x38, 0, 6, + CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + hws[LOONGSON2_PIX1_CLK] = clk_hw_register_divider(NULL, "pix1_clk", + "pix1_pll_clk", 0, + loongson2_pll_base + 0x48, 0, 6, + CLK_DIVIDER_ONE_BASED, + &loongson2_clk_lock); + + loongson2_check_clk_hws(hws, LOONGSON2_CLK_END); + + of_clk_add_hw_provider(np, of_clk_hw_onecell_get, clk_hw_data); + +err: + iounmap(loongson2_pll_base); +} + +CLK_OF_DECLARE(loongson2_clk, "loongson,ls2k-clk", loongson2_clocks_init); From patchwork Wed Oct 19 06:29:12 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yinbo Zhu X-Patchwork-Id: 4449 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a5d:4ac7:0:0:0:0:0 with SMTP id y7csp163835wrs; Tue, 18 Oct 2022 23:41:20 -0700 (PDT) X-Google-Smtp-Source: AMsMyM4TEoLJa1067Ks5EDwVroQIA1GwBC50gv8K7x/8HHQWCDesvcSVFoWNi+L1a7HZqCyu6f53 X-Received: by 2002:a05:6402:2949:b0:451:fabf:d88a with SMTP id ed9-20020a056402294900b00451fabfd88amr5873106edb.324.1666161680315; Tue, 18 Oct 2022 23:41:20 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1666161680; cv=none; d=google.com; s=arc-20160816; b=yvmI/22BFJz7zdI3SCmBZyogy0m+L2An+VeEf7HXLExAOM1co8wF21Ybt9nY0vl8lk FBpsn8AWGXiwuVEmxjcMQwWbA5YXdHjhlIBFMhLViFKPHKO2FzGJHTF0mFt0/TlwwHjZ bbv2sTPhneeEMJ8VdMnVgVJ98YdZUcGwHZD40O41L1CkUemagzZKE2BVt+2mq8D7WuDR vXMQZwuc7V3cm6DCBxRqSW6sMFi0BeMzV2QalHhOjwoblG7KxtPuyl8c6qSRe4OBnZpr s2UcH8CkWgC9J26JSJhtG/sJAze9PHcoMwhO/hL3IYw8Wg3ZLaFOuWoXA+PI6zUukzh+ yo/A== ARC-Message-Signature: i=1; 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[2620:137:e000::1:20]) by mx.google.com with ESMTP id s17-20020aa7c551000000b0045c9dbe290csi12212289edr.406.2022.10.18.23.40.56; Tue, 18 Oct 2022 23:41:20 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230046AbiJSG33 (ORCPT + 99 others); Wed, 19 Oct 2022 02:29:29 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55796 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229981AbiJSG31 (ORCPT ); Wed, 19 Oct 2022 02:29:27 -0400 Received: from loongson.cn (mail.loongson.cn [114.242.206.163]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 38972617C; Tue, 18 Oct 2022 23:29:26 -0700 (PDT) Received: from loongson.cn (unknown [10.180.13.64]) by gateway (Coremail) with SMTP id _____8BxfdpFmU9jh6gAAA--.3697S3; Wed, 19 Oct 2022 14:29:25 +0800 (CST) Received: from localhost.localdomain (unknown [10.180.13.64]) by localhost.localdomain (Coremail) with SMTP id AQAAf8CxXuA9mU9jHicBAA--.4688S4; Wed, 19 Oct 2022 14:29:23 +0800 (CST) From: Yinbo Zhu To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Huacai Chen , WANG Xuerui , Jiaxun Yang , Jianmin Lv , Yang Li , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, Yinbo Zhu Subject: [PATCH v2 3/3] dt-bindings: clock: add loongson2 clock binding Date: Wed, 19 Oct 2022 14:29:12 +0800 Message-Id: <20221019062912.3463-3-zhuyinbo@loongson.cn> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20221019062912.3463-1-zhuyinbo@loongson.cn> References: <20221019062912.3463-1-zhuyinbo@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8CxXuA9mU9jHicBAA--.4688S4 X-CM-SenderInfo: 52kx5xhqerqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBjvJXoWxXF47tF4kJw4fuF43JFWDJwb_yoW5Xr1rpF nxC345GrW09F17uws5KFyxA3Z5Z3WkAFnrZanrAa4jyF98W3W5XF47K34DZa9rAFyxZ39F vFWfur4UC3W8Cw7anT9S1TB71UUUUjDqnTZGkaVYY2UrUUUUj1kv1TuYvTs0mT0YCTnIWj qI5I8CrVACY4xI64kE6c02F40Ex7xfYxn0WfASr-VFAUDa7-sFnT9fnUUIcSsGvfJTRUUU bSxFc2x0x2IEx4CE42xK8VAvwI8IcIk0rVWrJVCq3wAFIxvE14AKwVWUXVWUAwA2ocxC64 kIII0Yj41l84x0c7CEw4AK67xGY2AK021l84ACjcxK6xIIjxv20xvE14v26ryj6F1UM28E F7xvwVC0I7IYx2IY6xkF7I0E14v26F4j6r4UJwA2z4x0Y4vEx4A2jsIE14v26r4UJVWxJr 1l84ACjcxK6I8E87Iv6xkF7I0E14v26r4UJVWxJr1ln4kS14v26r126r1DM2AIxVAIcxkE cVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx1l5I8CrVACY4xI64kE6c02F4 0Ex7xfMcIj6xIIjxv20xvE14v26r1q6rW5McIj6I8E87Iv67AKxVWxJVW8Jr1lOx8S6xCa FVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI48JMxkF7I0En4kS14v26r126r1DMxAIw28Icx kI7VAKI48JMxAIw28IcVCjz48v1sIEY20_WwCFx2IqxVCFs4IE7xkEbVWUJVW8JwCFI7km 07C267AKxVWUAVWUtwC20s026c02F40E14v26r1j6r18MI8I3I0E7480Y4vE14v26r106r 1rMI8E67AF67kF1VAFwI0_Jw0_GFylIxkGc2Ij64vIr41lIxAIcVC0I7IYx2IY67AKxVW5 JVW7JwCI42IY6xIIjxv20xvEc7CjxVAFwI0_Gr0_Cr1lIxAIcVCF04k26cxKx2IYs7xG6r 1j6r1xMIIF0xvEx4A2jsIE14v26F4j6r4UJwCI42IY6I8E87Iv6xkF7I0E14v26r4j6r4U JbIYCTnIWIevJa73UjIFyTuYvjxUzGYpUUUUU X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,SPF_HELO_PASS, 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: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1747097150094232097?= X-GMAIL-MSGID: =?utf-8?q?1747097150094232097?= Add the loongson2 clock binding with DT schema format using json-schema. Signed-off-by: Yinbo Zhu --- Change in v2: 1. Drop "Binding" string in the title. 2. Drop entire allOf and move the contents to top level. 3. Change string "refclk_100m" to "ref_100m". .../bindings/clock/loongson,ls2k-clk.yaml | 64 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 65 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml diff --git a/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml new file mode 100644 index 000000000000..104e38a618e2 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/loongson,ls2k-clk.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Loongson2 SoC Clock Control Module + +maintainers: + - Yinbo Zhu + +description: | + Loongson2 SoC clock control module is an integrated clock controller, which + generates and supplies to all modules. + +properties: + compatible: + enum: + - loongson,ls2k-clk + + reg: + maxItems: 1 + + clocks: + items: + - description: 100m ref + + clock-names: + items: + - const: ref_100m + + '#clock-cells': + const: 1 + description: + The clock consumer should specify the desired clock by having the clock + ID in its "clocks" phandle cell. See include/dt-bindings/clock/loongson,ls2k-clk.h + for the full list of loongson2 SoC clock IDs. + +required: + - compatible + - reg + - clocks + - clock-names + - '#clock-cells' + +additionalProperties: false + +examples: + - | + ref_100m: clock-ref-100m { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <100000000>; + clock-output-names = "ref_100m"; + }; + + - | + clk: clock-controller@1fe00480 { + compatible = "loongson,ls2k-clk"; + reg = <0x1fe00480 0x58>; + #clock-cells = <1>; + clocks = <&ref_100m>; + clock-names = "ref_100m"; + }; diff --git a/MAINTAINERS b/MAINTAINERS index a4de8f1b81f0..7b7ba73ccb99 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11918,6 +11918,7 @@ LOONGSON2 SOC SERIES CLOCK DRIVER M: Yinbo Zhu L: linux-clk@vger.kernel.org S: Maintained +F: Documentation/devicetree/bindings/clock/loongson,ls2k-clk.yaml F: drivers/clk/clk-loongson2.c F: include/dt-bindings/clock/loongson,ls2k-clk.h