From patchwork Tue Jan 18 17:09:01 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 533376 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 5A200C46467 for ; Tue, 18 Jan 2022 17:09:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346460AbiARRJS (ORCPT ); Tue, 18 Jan 2022 12:09:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37604 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347018AbiARRJR (ORCPT ); Tue, 18 Jan 2022 12:09:17 -0500 Received: from michel.telenet-ops.be (michel.telenet-ops.be [IPv6:2a02:1800:110:4::f00:18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 87661C061753 for ; Tue, 18 Jan 2022 09:09:15 -0800 (PST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:76d0:2bff:fec8:549]) by michel.telenet-ops.be with bizsmtp id kH992600E0kcUhD06H99lJ; Tue, 18 Jan 2022 18:09:13 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1n9rym-00AH3A-Tf; Tue, 18 Jan 2022 18:09:08 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1n9rym-001BlM-CO; Tue, 18 Jan 2022 18:09:08 +0100 From: Geert Uytterhoeven To: Michael Turquette , Stephen Boyd , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Magnus Damm Cc: Wolfram Sang , LUU HOAI , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 1/5] clk: renesas: r8a779f0: Add WDT clock Date: Tue, 18 Jan 2022 18:09:01 +0100 Message-Id: <8d9b280065a663f2cf31db7b21a010aa781a0af1.1642525158.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add the module clock used by the RCLK Watchdog Timer (RWDT) on the Renesas R-Car S4-8 (r8a779f0) SoC. Mark it as a critical clock, to ensure uninterrupted watchdog operation. Signed-off-by: Geert Uytterhoeven --- drivers/clk/renesas/r8a779f0-cpg-mssr.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/clk/renesas/r8a779f0-cpg-mssr.c b/drivers/clk/renesas/r8a779f0-cpg-mssr.c index 4100078406d67073..e48c5af7341454a7 100644 --- a/drivers/clk/renesas/r8a779f0-cpg-mssr.c +++ b/drivers/clk/renesas/r8a779f0-cpg-mssr.c @@ -121,6 +121,11 @@ static const struct mssr_mod_clk r8a779f0_mod_clks[] __initconst = { DEF_MOD("scif4", 705, R8A779F0_CLK_S0D12_PER), DEF_MOD("sys-dmac0", 709, R8A779F0_CLK_S0D3_PER), DEF_MOD("sys-dmac1", 710, R8A779F0_CLK_S0D3_PER), + DEF_MOD("wdt", 907, R8A779F0_CLK_R), +}; + +static const unsigned int r8a779f0_crit_mod_clks[] __initconst = { + MOD_CLK_ID(907), /* WDT */ }; /* @@ -177,6 +182,10 @@ const struct cpg_mssr_info r8a779f0_cpg_mssr_info __initconst = { .num_mod_clks = ARRAY_SIZE(r8a779f0_mod_clks), .num_hw_mod_clks = 28 * 32, + /* Critical Module Clocks */ + .crit_mod_clks = r8a779f0_crit_mod_clks, + .num_crit_mod_clks = ARRAY_SIZE(r8a779f0_crit_mod_clks), + /* Callbacks */ .init = r8a779f0_cpg_mssr_init, .cpg_clk_register = rcar_gen4_cpg_clk_register, From patchwork Tue Jan 18 17:09:02 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 532970 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 C7563C4707E for ; Tue, 18 Jan 2022 17:09:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347020AbiARRJS (ORCPT ); Tue, 18 Jan 2022 12:09:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37600 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347036AbiARRJR (ORCPT ); Tue, 18 Jan 2022 12:09:17 -0500 Received: from michel.telenet-ops.be (michel.telenet-ops.be [IPv6:2a02:1800:110:4::f00:18]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id A6B7BC06175D for ; Tue, 18 Jan 2022 09:09:15 -0800 (PST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:76d0:2bff:fec8:549]) by michel.telenet-ops.be with bizsmtp id kH992600B0kcUhD06H99lH; Tue, 18 Jan 2022 18:09:14 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1n9rym-00AH3B-Qu; Tue, 18 Jan 2022 18:09:08 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1n9rym-001BlT-D6; Tue, 18 Jan 2022 18:09:08 +0100 From: Geert Uytterhoeven To: Michael Turquette , Stephen Boyd , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Magnus Damm Cc: Wolfram Sang , LUU HOAI , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Thanh Quan , Geert Uytterhoeven Subject: [PATCH 2/5] dt-bindings: watchdog: renesas-wdt: Document r8a779f0 support Date: Tue, 18 Jan 2022 18:09:02 +0100 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Thanh Quan Document support for the Watchdog Timer (WDT) Controller in the Renesas R-Car S4-8 (R8A779F0) SoC. Signed-off-by: Thanh Quan Signed-off-by: Geert Uytterhoeven Reviewed-by: Wolfram Sang --- Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml index 91a98ccd4226f505..d060438e1402d502 100644 --- a/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml +++ b/Documentation/devicetree/bindings/watchdog/renesas,wdt.yaml @@ -55,6 +55,11 @@ properties: - renesas,r8a779a0-wdt # R-Car V3U - const: renesas,rcar-gen3-wdt # R-Car Gen3 and RZ/G2 + - items: + - enum: + - renesas,r8a779f0-wdt # R-Car S4-8 + - const: renesas,rcar-gen4-wdt # R-Car Gen4 + reg: maxItems: 1 From patchwork Tue Jan 18 17:09:03 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 533375 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 6F0EFC3526C for ; Tue, 18 Jan 2022 17:09:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1347036AbiARRJT (ORCPT ); Tue, 18 Jan 2022 12:09:19 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37606 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1347047AbiARRJR (ORCPT ); Tue, 18 Jan 2022 12:09:17 -0500 Received: from laurent.telenet-ops.be (laurent.telenet-ops.be [IPv6:2a02:1800:110:4::f00:19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id BD23BC061762 for ; Tue, 18 Jan 2022 09:09:15 -0800 (PST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:76d0:2bff:fec8:549]) by laurent.telenet-ops.be with bizsmtp id kH992600N0kcUhD01H99pN; Tue, 18 Jan 2022 18:09:14 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1n9rym-00AH3C-S8; Tue, 18 Jan 2022 18:09:08 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1n9rym-001BlZ-Dq; Tue, 18 Jan 2022 18:09:08 +0100 From: Geert Uytterhoeven To: Michael Turquette , Stephen Boyd , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Magnus Damm Cc: Wolfram Sang , LUU HOAI , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Thanh Quan , Geert Uytterhoeven Subject: [PATCH 3/5] watchdog: renesas_wdt: Add R-Car Gen4 support Date: Tue, 18 Jan 2022 18:09:03 +0100 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org From: Thanh Quan Add the compatible string for the R-Car Gen4 family. No further driver changes are needed. Signed-off-by: Thanh Quan Signed-off-by: Geert Uytterhoeven Reviewed-by: Wolfram Sang --- drivers/watchdog/renesas_wdt.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/watchdog/renesas_wdt.c b/drivers/watchdog/renesas_wdt.c index 5791198960e6c5bf..41d58ea5eb2f40fd 100644 --- a/drivers/watchdog/renesas_wdt.c +++ b/drivers/watchdog/renesas_wdt.c @@ -327,6 +327,7 @@ static SIMPLE_DEV_PM_OPS(rwdt_pm_ops, rwdt_suspend, rwdt_resume); static const struct of_device_id rwdt_ids[] = { { .compatible = "renesas,rcar-gen2-wdt", }, { .compatible = "renesas,rcar-gen3-wdt", }, + { .compatible = "renesas,rcar-gen4-wdt", }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, rwdt_ids); From patchwork Tue Jan 18 17:09:04 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 532971 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 313CEC3525A for ; Tue, 18 Jan 2022 17:09:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234402AbiARRJS (ORCPT ); Tue, 18 Jan 2022 12:09:18 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37598 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S243375AbiARRJR (ORCPT ); Tue, 18 Jan 2022 12:09:17 -0500 Received: from albert.telenet-ops.be (albert.telenet-ops.be [IPv6:2a02:1800:110:4::f00:1a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 79B13C06174E for ; Tue, 18 Jan 2022 09:09:15 -0800 (PST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:76d0:2bff:fec8:549]) by albert.telenet-ops.be with bizsmtp id kH992600H0kcUhD06H99m4; Tue, 18 Jan 2022 18:09:13 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1n9ryn-00AH3D-4M; Tue, 18 Jan 2022 18:09:09 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1n9rym-001Bli-Er; Tue, 18 Jan 2022 18:09:08 +0100 From: Geert Uytterhoeven To: Michael Turquette , Stephen Boyd , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Magnus Damm Cc: Wolfram Sang , LUU HOAI , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 4/5] arm64: dts: renesas: r8a779f0: Add RWDT node Date: Tue, 18 Jan 2022 18:09:04 +0100 Message-Id: <556a7f41bdadceecbe8b59b79ac7e9f592ca17a2.1642525158.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Add a device node for the RCLK Watchdog Timer (RWDT) on the Renesas R-Car S4-8 (R8A779F0) SoC. Extracted from a larger patch in the BSP by LUU HOAI. Signed-off-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r8a779f0.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a779f0.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0.dtsi index 5426532d10e2a472..0ac8c345558efc17 100644 --- a/arch/arm64/boot/dts/renesas/r8a779f0.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a779f0.dtsi @@ -59,6 +59,16 @@ soc: soc { #size-cells = <2>; ranges; + rwdt: watchdog@e6020000 { + compatible = "renesas,r8a779f0-wdt", + "renesas,rcar-gen4-wdt"; + reg = <0 0xe6020000 0 0x0c>; + clocks = <&cpg CPG_MOD 907>; + power-domains = <&sysc R8A779F0_PD_ALWAYS_ON>; + resets = <&cpg 907>; + status = "disabled"; + }; + cpg: clock-controller@e6150000 { compatible = "renesas,r8a779f0-cpg-mssr"; reg = <0 0xe6150000 0 0x4000>; From patchwork Tue Jan 18 17:09:05 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 532972 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 6E755C43219 for ; Tue, 18 Jan 2022 17:09:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238016AbiARRJR (ORCPT ); Tue, 18 Jan 2022 12:09:17 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:37596 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346460AbiARRJR (ORCPT ); Tue, 18 Jan 2022 12:09:17 -0500 Received: from laurent.telenet-ops.be (laurent.telenet-ops.be [IPv6:2a02:1800:110:4::f00:19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 729DEC061749 for ; Tue, 18 Jan 2022 09:09:15 -0800 (PST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed20:76d0:2bff:fec8:549]) by laurent.telenet-ops.be with bizsmtp id kH992600T0kcUhD01H99pP; Tue, 18 Jan 2022 18:09:13 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1n9ryn-00AH3E-35; Tue, 18 Jan 2022 18:09:09 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1n9rym-001Blq-GS; Tue, 18 Jan 2022 18:09:08 +0100 From: Geert Uytterhoeven To: Michael Turquette , Stephen Boyd , Wim Van Sebroeck , Guenter Roeck , Rob Herring , Magnus Damm Cc: Wolfram Sang , LUU HOAI , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-watchdog@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH 5/5] arm64: dts: renesas: spider-cpu: Enable watchdog timer Date: Tue, 18 Jan 2022 18:09:05 +0100 Message-Id: X-Mailer: git-send-email 2.25.1 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: devicetree@vger.kernel.org Enable the watchdog timer on the Spider board. Extracted from a larger patch in the BSP by LUU HOAI. Signed-off-by: Geert Uytterhoeven Reviewed-by: Wolfram Sang --- For the watchdog to be able to actually reboot the system, this depends on proper configuration of the Watchdog Timer Reset Control Register (WDTRSTCR) in the Reset (RST) module, either by Linux[1], or by the firmware. [1] "[PATCH LOCAL v2] soc: renesas: rcar-rst: Allow WDT reset on R-Car Gen4" https://lore.kernel.org/r/39005cf749a99afc6d3ba96ff155fd2a231418a8.1642524743.git.geert+renesas@glider.be --- arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi index 156586532c844c41..3a90932fe85c8243 100644 --- a/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi +++ b/arch/arm64/boot/dts/renesas/r8a779f0-spider-cpu.dtsi @@ -31,6 +31,11 @@ &extalr_clk { clock-frequency = <32768>; }; +&rwdt { + timeout-sec = <60>; + status = "okay"; +}; + &scif3 { status = "okay"; };