From patchwork Mon Nov 16 17:11:58 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gregory CLEMENT X-Patchwork-Id: 326671 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1A166C6379D for ; Mon, 16 Nov 2020 17:12:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id D4FDD20797 for ; Mon, 16 Nov 2020 17:12:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732647AbgKPRMW (ORCPT ); Mon, 16 Nov 2020 12:12:22 -0500 Received: from relay5-d.mail.gandi.net ([217.70.183.197]:58315 "EHLO relay5-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1732637AbgKPRMW (ORCPT ); Mon, 16 Nov 2020 12:12:22 -0500 X-Originating-IP: 91.175.115.186 Received: from localhost (91-175-115-186.subs.proxad.net [91.175.115.186]) (Authenticated sender: gregory.clement@bootlin.com) by relay5-d.mail.gandi.net (Postfix) with ESMTPSA id 938971C0003; Mon, 16 Nov 2020 17:12:19 +0000 (UTC) From: Gregory CLEMENT To: Sebastian Reichel , linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Rob Herring , devicetree@vger.kernel.org Cc: Thomas Petazzoni , Alexandre Belloni , Lars Povlsen , , Gregory CLEMENT Subject: [PATCH 4/5] power: reset: ocelot: Add support 2 othe MIPS based SoCs Date: Mon, 16 Nov 2020 18:11:58 +0100 Message-Id: <20201116171159.1735315-5-gregory.clement@bootlin.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201116171159.1735315-1-gregory.clement@bootlin.com> References: <20201116171159.1735315-1-gregory.clement@bootlin.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org This adds reset support for Luton and Jaguar2 in the ocelot-reset driver. They are both MIPS based belonging to the VvoreIII family. Signed-off-by: Gregory CLEMENT Acked-by: Alexandre Belloni --- drivers/power/reset/ocelot-reset.c | 30 +++++++++++++++++++++++++++--- 1 file changed, 27 insertions(+), 3 deletions(-) diff --git a/drivers/power/reset/ocelot-reset.c b/drivers/power/reset/ocelot-reset.c index a203c42e99d4..0f92416f2907 100644 --- a/drivers/power/reset/ocelot-reset.c +++ b/drivers/power/reset/ocelot-reset.c @@ -29,6 +29,8 @@ struct ocelot_reset_context { struct notifier_block restart_handler; }; +#define BIT_OFF_INVALID 32 + #define SOFT_SWC_RST BIT(1) #define SOFT_CHIP_RST BIT(0) @@ -77,9 +79,11 @@ static int ocelot_restart_handle(struct notifier_block *this, ctx->props->vcore_protect, 0); /* Make the SI back to boot mode */ - regmap_update_bits(ctx->cpu_ctrl, ICPU_CFG_CPU_SYSTEM_CTRL_GENERAL_CTRL, - IF_SI_OWNER_MASK << if_si_owner_bit, - IF_SI_OWNER_SIBM << if_si_owner_bit); + if (if_si_owner_bit != BIT_OFF_INVALID) + regmap_update_bits(ctx->cpu_ctrl, + ICPU_CFG_CPU_SYSTEM_CTRL_GENERAL_CTRL, + IF_SI_OWNER_MASK << if_si_owner_bit, + IF_SI_OWNER_SIBM << if_si_owner_bit); pr_emerg("Resetting SoC\n"); @@ -127,6 +131,20 @@ static int ocelot_reset_probe(struct platform_device *pdev) return err; } +static const struct reset_props reset_props_jaguar2 = { + .syscon = "mscc,ocelot-cpu-syscon", + .protect_reg = 0x20, + .vcore_protect = BIT(2), + .if_si_owner_bit = 6, +}; + +static const struct reset_props reset_props_luton = { + .syscon = "mscc,ocelot-cpu-syscon", + .protect_reg = 0x20, + .vcore_protect = BIT(2), + .if_si_owner_bit = BIT_OFF_INVALID, /* n/a */ +}; + static const struct reset_props reset_props_ocelot = { .syscon = "mscc,ocelot-cpu-syscon", .protect_reg = 0x20, @@ -143,6 +161,12 @@ static const struct reset_props reset_props_sparx5 = { static const struct of_device_id ocelot_reset_of_match[] = { { + .compatible = "mscc,jaguar2-chip-reset", + .data = &reset_props_jaguar2 + }, { + .compatible = "mscc,luton-chip-reset", + .data = &reset_props_luton + }, { .compatible = "mscc,ocelot-chip-reset", .data = &reset_props_ocelot }, {