From patchwork Fri Jun 4 18:09:31 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 12300419 X-Patchwork-Delegate: geert@linux-m68k.org 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 A478DC4743E for ; Fri, 4 Jun 2021 18:09:44 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 8D3DC61078 for ; Fri, 4 Jun 2021 18:09:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230022AbhFDSL3 (ORCPT ); Fri, 4 Jun 2021 14:11:29 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:6354 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S229726AbhFDSL3 (ORCPT ); Fri, 4 Jun 2021 14:11:29 -0400 X-IronPort-AV: E=Sophos;i="5.83,248,1616425200"; d="scan'208";a="83279183" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 05 Jun 2021 03:09:42 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 3138A40C7B95; Sat, 5 Jun 2021 03:09:40 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Magnus Damm , Rob Herring , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH 1/3] dt-bindings: power: renesas,rzg2l-sysc: Add DT binding documentation for SYSC controller Date: Fri, 4 Jun 2021 19:09:31 +0100 Message-Id: <20210604180933.16754-2-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210604180933.16754-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20210604180933.16754-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add DT binding documentation for SYSC controller found on RZ/G2{L,LC,UL} SoC's. SYSC block contains the LSI_DEVID register which is used to retrieve SoC product information. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Geert Uytterhoeven --- .../bindings/power/renesas,rzg2l-sysc.yaml | 50 +++++++++++++++++++ 1 file changed, 50 insertions(+) create mode 100644 Documentation/devicetree/bindings/power/renesas,rzg2l-sysc.yaml diff --git a/Documentation/devicetree/bindings/power/renesas,rzg2l-sysc.yaml b/Documentation/devicetree/bindings/power/renesas,rzg2l-sysc.yaml new file mode 100644 index 000000000000..616a5139644f --- /dev/null +++ b/Documentation/devicetree/bindings/power/renesas,rzg2l-sysc.yaml @@ -0,0 +1,50 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: "http://devicetree.org/schemas/power/renesas,rzg2l-sysc.yaml#" +$schema: "http://devicetree.org/meta-schemas/core.yaml#" + +title: Renesas RZ/G2L System Controller (SYSC) + +maintainers: + - Geert Uytterhoeven + +description: + The RZ/G2L System Controller (SYSC) performs system control of the LSI and + supports following functions, + - External terminal state capture function + - 34-bit address space access function + - Low power consumption control + - WDT stop control + +properties: + compatible: + enum: + - renesas,r9a07g044-sysc # RZ/G2{L,LC} + + reg: + maxItems: 1 + + interrupts: + minItems: 4 + maxItems: 4 + +required: + - compatible + - reg + - interrupts + +additionalProperties: false + +examples: + - | + #include + // System Controller node + sysc: system-controller@11020000 { + compatible = "renesas,r9a07g044-sysc"; + reg = <0x11020000 0x10000>; + interrupts = , + , + , + ; + }; From patchwork Fri Jun 4 18:09:32 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 12300421 X-Patchwork-Delegate: geert@linux-m68k.org 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 DB960C4743C for ; Fri, 4 Jun 2021 18:09:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BFD556141E for ; Fri, 4 Jun 2021 18:09:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229726AbhFDSLb (ORCPT ); Fri, 4 Jun 2021 14:11:31 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:6354 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230063AbhFDSLb (ORCPT ); Fri, 4 Jun 2021 14:11:31 -0400 X-IronPort-AV: E=Sophos;i="5.83,248,1616425200"; d="scan'208";a="83279187" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 05 Jun 2021 03:09:44 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id 747F840C7B94; Sat, 5 Jun 2021 03:09:42 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Magnus Damm , Rob Herring , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH 2/3] soc: renesas: Add support to read LSI DEVID register of RZ/G2{L,LC} SoC's Date: Fri, 4 Jun 2021 19:09:32 +0100 Message-Id: <20210604180933.16754-3-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210604180933.16754-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20210604180933.16754-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add support for reading the LSI DEVID register which is present in SYSC block of RZ/G2{L,LC} SoC's. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das --- drivers/soc/renesas/renesas-soc.c | 34 ++++++++++++++++++++++++++++++- 1 file changed, 33 insertions(+), 1 deletion(-) diff --git a/drivers/soc/renesas/renesas-soc.c b/drivers/soc/renesas/renesas-soc.c index 0f8eff4a641a..e6b21da281ef 100644 --- a/drivers/soc/renesas/renesas-soc.c +++ b/drivers/soc/renesas/renesas-soc.c @@ -56,6 +56,11 @@ static const struct renesas_family fam_rzg2 __initconst __maybe_unused = { .reg = 0xfff00044, /* PRR (Product Register) */ }; +static const struct renesas_family fam_rzg2l __initconst __maybe_unused = { + .name = "RZ/G2L", + .reg = 0x11020a04, +}; + static const struct renesas_family fam_shmobile __initconst __maybe_unused = { .name = "SH-Mobile", .reg = 0xe600101c, /* CCCR (Common Chip Code Register) */ @@ -64,7 +69,7 @@ static const struct renesas_family fam_shmobile __initconst __maybe_unused = { struct renesas_soc { const struct renesas_family *family; - u8 id; + u32 id; }; static const struct renesas_soc soc_rz_a1h __initconst __maybe_unused = { @@ -131,6 +136,11 @@ static const struct renesas_soc soc_rz_g2h __initconst __maybe_unused = { .id = 0x4f, }; +static const struct renesas_soc soc_rz_g2l __initconst __maybe_unused = { + .family = &fam_rzg2l, + .id = 0x841c447, +}; + static const struct renesas_soc soc_rcar_m1a __initconst __maybe_unused = { .family = &fam_rcar_gen1, }; @@ -299,6 +309,9 @@ static const struct of_device_id renesas_socs[] __initconst = { #ifdef CONFIG_ARCH_R8A779A0 { .compatible = "renesas,r8a779a0", .data = &soc_rcar_v3u }, #endif +#if defined(CONFIG_ARCH_R9A07G044) + { .compatible = "renesas,r9a07g044", .data = &soc_rz_g2l }, +#endif #ifdef CONFIG_ARCH_SH73A0 { .compatible = "renesas,sh73a0", .data = &soc_shmobile_ag5 }, #endif @@ -348,6 +361,25 @@ static int __init renesas_soc_init(void) goto done; } + np = of_find_compatible_node(NULL, NULL, "renesas,r9a07g044-sysc"); + if (np) { + of_node_put(np); + chipid = ioremap(family->reg, 4); + + if (chipid) { + product = readl(chipid); + iounmap(chipid); + + if (soc->id && (product & 0xfffffff) != soc->id) { + pr_warn("SoC mismatch (product = 0x%x)\n", + product); + return -ENODEV; + } + } + + goto done; + } + /* Try PRR first, then hardcoded fallback */ np = of_find_compatible_node(NULL, NULL, "renesas,prr"); if (np) { From patchwork Fri Jun 4 18:09:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lad Prabhakar X-Patchwork-Id: 12300423 X-Patchwork-Delegate: geert@linux-m68k.org 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham 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 311A2C4743C for ; Fri, 4 Jun 2021 18:09:49 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 1AA48613FA for ; Fri, 4 Jun 2021 18:09:49 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230075AbhFDSLe (ORCPT ); Fri, 4 Jun 2021 14:11:34 -0400 Received: from relmlor2.renesas.com ([210.160.252.172]:6354 "EHLO relmlie6.idc.renesas.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S230173AbhFDSLd (ORCPT ); Fri, 4 Jun 2021 14:11:33 -0400 X-IronPort-AV: E=Sophos;i="5.83,248,1616425200"; d="scan'208";a="83279190" Received: from unknown (HELO relmlir6.idc.renesas.com) ([10.200.68.152]) by relmlie6.idc.renesas.com with ESMTP; 05 Jun 2021 03:09:46 +0900 Received: from localhost.localdomain (unknown [10.226.36.204]) by relmlir6.idc.renesas.com (Postfix) with ESMTP id B735240C7B97; Sat, 5 Jun 2021 03:09:44 +0900 (JST) From: Lad Prabhakar To: Geert Uytterhoeven , Magnus Damm , Rob Herring , linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Prabhakar , Biju Das , Lad Prabhakar Subject: [PATCH 3/3] arm64: dts: renesas: r9a07g044: Add SYSC node to RZ/G2L SoC DTSI Date: Fri, 4 Jun 2021 19:09:33 +0100 Message-Id: <20210604180933.16754-4-prabhakar.mahadev-lad.rj@bp.renesas.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210604180933.16754-1-prabhakar.mahadev-lad.rj@bp.renesas.com> References: <20210604180933.16754-1-prabhakar.mahadev-lad.rj@bp.renesas.com> Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org Add SYSC node to RZ/G2L (R9A07G044) SoC DTSI Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Reviewed-by: Geert Uytterhoeven --- arch/arm64/boot/dts/renesas/r9a07g044.dtsi | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi index b2dbf6543d98..6515177bce29 100644 --- a/arch/arm64/boot/dts/renesas/r9a07g044.dtsi +++ b/arch/arm64/boot/dts/renesas/r9a07g044.dtsi @@ -98,6 +98,16 @@ #power-domain-cells = <0>; }; + sysc: system-controller@11020000 { + compatible = "renesas,r9a07g044-sysc"; + reg = <0 0x11020000 0 0x10000>; + interrupts = , + , + , + ; + status = "disabled"; + }; + gic: interrupt-controller@11900000 { compatible = "arm,gic-v3"; #interrupt-cells = <3>;