From patchwork Tue Dec 26 05:38:47 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: JeeHeng Sia X-Patchwork-Id: 183269 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:a05:7301:6f82:b0:100:9c79:88ff with SMTP id tb2csp695949dyb; Mon, 25 Dec 2023 21:44:06 -0800 (PST) X-Google-Smtp-Source: AGHT+IHRLdUUJFr/++VxMkgWM+AzXaxoxujpIKUvCx3S5y1FIKBCCSxXQf2PX2bsQU7hEB3LrAVx X-Received: by 2002:a05:6e02:1aa8:b0:360:3f3:8651 with SMTP id l8-20020a056e021aa800b0036003f38651mr3301734ilv.108.1703569446100; Mon, 25 Dec 2023 21:44:06 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1703569446; cv=none; d=google.com; s=arc-20160816; b=aUKsSaFq1xjMXnNBc6EHWlA9kCUNkGAkNVH8KJAr2c4KlYEt5Vwmm1BTQCX+JLaw8g FdCCc3Yflgjgm1UHseIsr1BJyyGe9cVWo5YE6sHq8DtFYs+tT4DzFVh7Iu5DR4G07cAK 1ud7LfoQ64cO/Fd/ZRLi+8Z+8SCO6rAY1HK8IVMxbpmP3WnP0P+1/3bCEmpJXHD1qDq7 22+jSEOMHX3lnPiJcgwFVUoz9ENC4IQWrcdKfuPG4RIetyP9h9iQug3GKev+uIM5fofP pPwPUqgGJznyaAvAoNI8FLcHPcPyffQZ9g37LzmZsDgTmReoZflgKOfk6hfs9oAaXn5Q DgiQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:list-unsubscribe :list-subscribe:list-id:precedence:references:in-reply-to:message-id :date:subject:cc:to:from; bh=JPONiyMGUUpNzwWfQoUjkAj5q1NmFD4776Mq/a19VNg=; fh=KD/Zzs0bhySScZVe0KjrajPrxTirsEOkYoyek6m98eE=; b=RwgCUDRQ0bPZsnHFwX1n0OnSOPbnvdJIAgH/o+EbM/mo4XsxqgzPSJIx9xsls24EeV Rz7YFdJA2S4J8YmImdx+dPVTce+vm6foHUWW9o/Qe3Vgt79ENr6Cud+AtBv6hom2xeCM RySi4Txaln4P4VZyVk2TnmlfjAApQAj2XzoxB/gIeNT+uy4y8HVyN8UO5Z3ftLbDO9T2 948uZR++smZflGwCbNGliw9uW39Up1unVTfI7mpTU0Txkmw8rYhoOJ2NcQqN7k/bSDo7 0QdXPc6Ia3TW+898CQ4y15s7/36cBFkG70afg0h3vjAnKm4DVK4GdiTmF+GgO98DHyi8 /a2w== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-11371-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-11371-ouuuleilei=gmail.com@vger.kernel.org" Received: from sv.mirrors.kernel.org (sv.mirrors.kernel.org. [2604:1380:45e3:2400::1]) by mx.google.com with ESMTPS id f10-20020a170902ce8a00b001d337b8c098si8958668plg.597.2023.12.25.21.44.05 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 25 Dec 2023 21:44:06 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel+bounces-11371-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) client-ip=2604:1380:45e3:2400::1; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel+bounces-11371-ouuuleilei=gmail.com@vger.kernel.org designates 2604:1380:45e3:2400::1 as permitted sender) smtp.mailfrom="linux-kernel+bounces-11371-ouuuleilei=gmail.com@vger.kernel.org" Received: from smtp.subspace.kernel.org (wormhole.subspace.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by sv.mirrors.kernel.org (Postfix) with ESMTPS id D26312823FA for ; Tue, 26 Dec 2023 05:44:05 +0000 (UTC) Received: from localhost.localdomain (localhost.localdomain [127.0.0.1]) by smtp.subspace.kernel.org (Postfix) with ESMTP id A6F894EB32; Tue, 26 Dec 2023 05:40:47 +0000 (UTC) X-Original-To: linux-kernel@vger.kernel.org Received: from fd01.gateway.ufhost.com (fd01.gateway.ufhost.com [61.152.239.71]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 96B4B4EB25; Tue, 26 Dec 2023 05:40:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=starfivetech.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=starfivetech.com Received: from EXMBX166.cuchost.com (unknown [175.102.18.54]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "EXMBX166", Issuer "EXMBX166" (not verified)) by fd01.gateway.ufhost.com (Postfix) with ESMTP id 140FD8022; Tue, 26 Dec 2023 13:40:42 +0800 (CST) Received: from EXMBX066.cuchost.com (172.16.7.66) by EXMBX166.cuchost.com (172.16.6.76) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Tue, 26 Dec 2023 13:40:41 +0800 Received: from jsia-virtual-machine.localdomain (202.188.176.82) by EXMBX066.cuchost.com (172.16.6.66) with Microsoft SMTP Server (TLS) id 15.0.1497.42; Tue, 26 Dec 2023 13:40:35 +0800 From: Sia Jee Heng To: , , , , , , , , , , , , CC: , , , , , , Joshua Yeong Subject: [RFC 15/16] reset: starfive: Add StarFive JH8100 reset driver Date: Tue, 26 Dec 2023 13:38:47 +0800 Message-ID: <20231226053848.25089-16-jeeheng.sia@starfivetech.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231226053848.25089-1-jeeheng.sia@starfivetech.com> References: <20231226053848.25089-1-jeeheng.sia@starfivetech.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: EXCAS064.cuchost.com (172.16.6.24) To EXMBX066.cuchost.com (172.16.6.66) X-YovoleRuleAgent: yovoleflag X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1786322035348498948 X-GMAIL-MSGID: 1786322035348498948 Add auxiliary reset driver to support StarFive JH8100 SoC. Co-developed-by: Joshua Yeong Signed-off-by: Joshua Yeong Signed-off-by: Sia Jee Heng Reviewed-by: Ley Foon Tan --- MAINTAINERS | 7 ++ drivers/reset/starfive/Kconfig | 8 ++ drivers/reset/starfive/Makefile | 2 + .../reset/starfive/reset-starfive-jh8100.c | 108 ++++++++++++++++++ 4 files changed, 125 insertions(+) create mode 100644 drivers/reset/starfive/reset-starfive-jh8100.c diff --git a/MAINTAINERS b/MAINTAINERS index 1ea4a694ed31..96fbe3259356 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -20692,6 +20692,13 @@ F: Documentation/devicetree/bindings/clock/starfive,jh81*.yaml F: drivers/clk/starfive/clk-starfive-jh81* F: include/dt-bindings/clock/starfive?jh81*.h +STARFIVE JH8100 RESET CONTROLLER DRIVERS +M: Sia Jee Heng +M: Ley Foon Tan +S: Maintained +F: drivers/reset/starfive/reset-starfive-jh81* +F: include/dt-bindings/reset/starfive?jh81*.h + STATIC BRANCH/CALL M: Peter Zijlstra M: Josh Poimboeuf diff --git a/drivers/reset/starfive/Kconfig b/drivers/reset/starfive/Kconfig index 29fbcf1a7d83..88d050044d52 100644 --- a/drivers/reset/starfive/Kconfig +++ b/drivers/reset/starfive/Kconfig @@ -19,3 +19,11 @@ config RESET_STARFIVE_JH7110 default ARCH_STARFIVE help This enables the reset controller driver for the StarFive JH7110 SoC. + +config RESET_STARFIVE_JH8100 + bool "StarFive JH8100 Reset Driver" + depends on AUXILIARY_BUS && CLK_STARFIVE_JH8100_SYS + select RESET_STARFIVE_COMMON + default ARCH_STARFIVE + help + This enables the reset controller driver for the StarFive JH8100 SoC. diff --git a/drivers/reset/starfive/Makefile b/drivers/reset/starfive/Makefile index 582e4c160bd4..ede1fc1c9601 100644 --- a/drivers/reset/starfive/Makefile +++ b/drivers/reset/starfive/Makefile @@ -3,3 +3,5 @@ obj-$(CONFIG_RESET_STARFIVE_COMMON) += reset-starfive-common.o obj-$(CONFIG_RESET_STARFIVE_JH7100) += reset-starfive-jh7100.o obj-$(CONFIG_RESET_STARFIVE_JH7110) += reset-starfive-jh7110.o + +obj-$(CONFIG_RESET_STARFIVE_JH8100) += reset-starfive-jh8100.o diff --git a/drivers/reset/starfive/reset-starfive-jh8100.c b/drivers/reset/starfive/reset-starfive-jh8100.c new file mode 100644 index 000000000000..a14418653608 --- /dev/null +++ b/drivers/reset/starfive/reset-starfive-jh8100.c @@ -0,0 +1,108 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Reset driver for the StarFive JH8100 SoC + * + * Copyright (C) 2023 StarFive Technology Co., Ltd. + */ + +#include +#include +#include + +#include "reset-starfive-common.h" + +#define JH8100_SYSRST_NUM_RESETS (JH8100_SYSRST_HD_AUDIO + 1) +#define JH8100_NWRST_NUM_RESETS (JH8100_NWRST_MERAK1_TVSENSOR + 1) +#define JH8100_NERST_NUM_RESETS (JH8100_NERST_DUBHE_TVSENSOR + 1) +#define JH8100_SWRST_NUM_RESETS (JH8100_SWRST_DDR_TVSENSOR + 1) +#define JH8100_AONRST_NUM_RESETS (JH8100_AONRST_IRQ_CTRL + 1) + +struct jh8100_reset_info { + unsigned int nr_resets; + unsigned int assert_offset; + unsigned int status_offset; +}; + +static const struct jh8100_reset_info jh8100_sys_info = { + .nr_resets = JH8100_SYSRST_NUM_RESETS, + .assert_offset = 0x1B4, + .status_offset = 0x1B8, +}; + +static const struct jh8100_reset_info jh8100_sys_nw_info = { + .nr_resets = JH8100_NWRST_NUM_RESETS, + .assert_offset = 0xA4, + .status_offset = 0xA8, +}; + +static const struct jh8100_reset_info jh8100_sys_ne_info = { + .nr_resets = JH8100_NERST_NUM_RESETS, + .assert_offset = 0x2BC, + .status_offset = 0x2C4, +}; + +static const struct jh8100_reset_info jh8100_sys_sw_info = { + .nr_resets = JH8100_SWRST_NUM_RESETS, + .assert_offset = 0x28, + .status_offset = 0x2C, +}; + +static const struct jh8100_reset_info jh8100_aon_info = { + .nr_resets = JH8100_AONRST_NUM_RESETS, + .assert_offset = 0x104, + .status_offset = 0x108, +}; + +static int jh8100_reset_probe(struct auxiliary_device *adev, + const struct auxiliary_device_id *id) +{ + struct jh8100_reset_info *info = (struct jh8100_reset_info *) + (id->driver_data); + struct starfive_reset_adev *rdev = to_starfive_reset_adev(adev); + void __iomem *base = rdev->base; + + if (!info || !base) + return -ENODEV; + + return reset_starfive_register(&adev->dev, + adev->dev.parent->of_node, + base + info->assert_offset, + base + info->status_offset, NULL, + info->nr_resets, NULL); +} + +static const struct auxiliary_device_id jh8100_reset_ids[] = { + { + .name = "clk_starfive_jh8100_sys.rst-sys", + .driver_data = (kernel_ulong_t)&jh8100_sys_info, + }, + { + .name = "clk_starfive_jh8100_sys.rst-nw", + .driver_data = (kernel_ulong_t)&jh8100_sys_nw_info, + }, + { + .name = "clk_starfive_jh8100_sys.rst-ne", + .driver_data = (kernel_ulong_t)&jh8100_sys_ne_info, + }, + { + .name = "clk_starfive_jh8100_sys.rst-sw", + .driver_data = (kernel_ulong_t)&jh8100_sys_sw_info, + }, + { + .name = "clk_starfive_jh8100_sys.rst-aon", + .driver_data = (kernel_ulong_t)&jh8100_aon_info, + }, + { /* sentinel */ } +}; +MODULE_DEVICE_TABLE(auxiliary, jh8100_reset_ids); + +static struct auxiliary_driver jh8100_reset_driver = { + .probe = jh8100_reset_probe, + .id_table = jh8100_reset_ids, +}; +module_auxiliary_driver(jh8100_reset_driver); + +MODULE_AUTHOR("Joshua Yeong "); +MODULE_AUTHOR("Sia Jee Heng "); +MODULE_DESCRIPTION("StarFive JH8100 reset driver"); +MODULE_LICENSE("GPL");