From patchwork Wed Sep 18 13:49:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Michal Wilczynski X-Patchwork-Id: 13806907 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id D5C3BCCD1A8 for ; Wed, 18 Sep 2024 13:49:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:References:MIME-Version:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=qdzXjSJNgiZXm+r1PF+WWnWY4lDUzihulxW2qFIYPPY=; b=M6gPPjCw501pqh R5n1ld4LbkhTV4gmQvQV/CDxzgOn3F8D2lJuIZLwV08OBND52Sh10AxnmCq5OM7W8Xj4zPiexHOfX qyKQrv7JH28ia9lMnH1oV2ob/2jgwY3eyHguhO1NW/b1XsyNGE1GvgbgVX0FPeBvuArQNOCYp7i2t zP4gekDAgOEIQ36ZBwqKcwXSb+K3kuaIQ4htvo2LZsyILzlTM+A+jZCGkY9X0z57gLYEVE07oXo7s 357PLaguP31LRLadgZb7tZ1fjKLvtfIC4y3eQhgDk3RI6qNYB39CISogNZ0we1UOgKEVpOGFIJaF7 +btCvg+Eo6ciJKG5BEYQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1sqv3r-00000008NIt-1NW3; Wed, 18 Sep 2024 13:49:39 +0000 Received: from mailout2.w1.samsung.com ([210.118.77.12]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1sqv3l-00000008NFM-2ezw for linux-riscv@lists.infradead.org; Wed, 18 Sep 2024 13:49:37 +0000 Received: from eucas1p1.samsung.com (unknown [182.198.249.206]) by mailout2.w1.samsung.com (KnoxPortal) with ESMTP id 20240918134927euoutp02b25fe01e9574740b8aa9c15513c9f815~2WtKU0ith1591915919euoutp02k for ; Wed, 18 Sep 2024 13:49:27 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 mailout2.w1.samsung.com 20240918134927euoutp02b25fe01e9574740b8aa9c15513c9f815~2WtKU0ith1591915919euoutp02k DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=samsung.com; s=mail20170921; t=1726667367; bh=02T9kzzWdCSYVfcbjqUHN+jds2Jp15gLdjoz6u6rOp8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=LEyoAolCAnlmtcLcQkRE0pS0mKQhN4Ni5xV3pfE5HyEAgEvJBq+gPOroLIDsNMMZf bIbTnbIqVmBQQgWJNWkhRUWQZTMxf02RcpxxsyCeokCZXc0Q4qugAVZjgGIMdhkOol ianGN1Dgm6nZ39xsjxgsaEyBFC4QpkL3yONSNR6g= Received: from eusmges2new.samsung.com (unknown [203.254.199.244]) by eucas1p2.samsung.com (KnoxPortal) with ESMTP id 20240918134927eucas1p2c368227348de008b0c29c37d77cf8b38~2WtJ3n1x00326803268eucas1p2n; Wed, 18 Sep 2024 13:49:27 +0000 (GMT) Received: from eucas1p1.samsung.com ( [182.198.249.206]) by eusmges2new.samsung.com (EUCPMTA) with SMTP id E4.1B.09875.76ADAE66; Wed, 18 Sep 2024 14:49:27 +0100 (BST) Received: from eusmtrp2.samsung.com (unknown [182.198.249.139]) by eucas1p1.samsung.com (KnoxPortal) with ESMTPA id 20240918134926eucas1p1df23a583b356505939d4c5501bd6c80f~2WtJeJaJ50702707027eucas1p1_; Wed, 18 Sep 2024 13:49:26 +0000 (GMT) Received: from eusmgms2.samsung.com (unknown [182.198.249.180]) by eusmtrp2.samsung.com (KnoxPortal) with ESMTP id 20240918134926eusmtrp2c96fb1ba3229cf8f0d11a21bdb1370e4~2WtJdPJ550382403824eusmtrp2m; Wed, 18 Sep 2024 13:49:26 +0000 (GMT) X-AuditID: cbfec7f4-131ff70000002693-18-66eada6731d5 Received: from eusmtip1.samsung.com ( [203.254.199.221]) by eusmgms2.samsung.com (EUCPMTA) with SMTP id 5D.69.19096.66ADAE66; Wed, 18 Sep 2024 14:49:26 +0100 (BST) Received: from AMDC4942.home (unknown [106.210.136.40]) by eusmtip1.samsung.com (KnoxPortal) with ESMTPA id 20240918134925eusmtip19c28f3b9c43949c2aadbc88904cce5dd~2WtIuzDyL1778117781eusmtip1F; Wed, 18 Sep 2024 13:49:25 +0000 (GMT) From: Michal Wilczynski To: drew@pdp7.com, guoren@kernel.org, wefu@redhat.com, jassisinghbrar@gmail.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, m.szyprowski@samsung.com Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Michal Wilczynski Subject: [PATCH RFC v1 2/3] dt-bindings: mailbox: Add thead,th1520-mailbox bindings Date: Wed, 18 Sep 2024 15:49:00 +0200 Message-Id: <20240918134901.193033-3-m.wilczynski@samsung.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240918134901.193033-1-m.wilczynski@samsung.com> MIME-Version: 1.0 X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFjrPKsWRmVeSWpSXmKPExsWy7djPc7rpt16lGfzYzGKx9fcsdos1e88x Wcw/co7V4t6lLUwWL/Y2slhcWzGX3eLlrHtsFpd3zWGz2Pa5hc1i7ZG77Bbrv85nsnh5uYfZ om0Wv8X/PTvYLVr2T2Fx4Pd48/Ili8fhji/sHjtn3WX32LSqk81j85J6j5a1x5g83u+7yubR t2UVo8el5uvsHp83yQVwRXHZpKTmZJalFunbJXBlHP73iLXgonTFk9eCDYzvRbsYOTkkBEwk TlztZe9i5OIQEljBKHH7/B82COcLo8Txdc9ZIJzPjBLX7h8AynCAtew/pAYRX84osW7GD2YI 5w2jxNV5R9lA5rIJGEk8WD6fFSQhIvCOUWLStdtMIA6zQC+jxNS9M5lAqoQFQiVWbt3ICGKz CKhKrD92kglkBa+AncTcZVIQB8pL7D94lhnE5hSwl5jxqZEFxOYVEJQ4OfMJmM0MVNO8dTbY FRICszkljr65wAzR7CIxv3M/G4QtLPHq+BZ2CFtG4v/O+UwQdr7Eg62foOprJHb2HIeyrSXu nPsF9jKzgKbE+l36EGFHiV+v/jFDQoJP4sZbQYgT+CQmbZsOFeaV6GgTgqhWk5ja0wu39NyK bVBLPSTO7t/AOoFRcRaSZ2YheWYWwt4FjMyrGMVTS4tz01OLjfJSy/WKE3OLS/PS9ZLzczcx AtPc6X/Hv+xgXP7qo94hRiYOxkOMEhzMSiK84h9epgnxpiRWVqUW5ccXleakFh9ilOZgURLn VU2RTxUSSE8sSc1OTS1ILYLJMnFwSjUwFeSlP2BWku5+18Lyt3ZPwiaW08KcL6/v9hd48uVh 0YHTzWlLtU7nf1mhduig1op7v8NPGWhM3PWc2a8971nwrR13E27e9vghZjLrscZsRaYjfLM0 HT04PM93N279E87yYqthHbdGwma/d/f33zwzXXiuxA39UzIp+V+aOewvTf6d/bXo5eyF8SaL uaJMp15c2tGlfHvu1bWpzz5WPz0l5xLkwJg/ZdYfSyarr+y7jVdonHYzqfq8u708KXZNiit7 oUDztrJ/x18VrnTonao77UeRun/1c4tS1h+S107nn0j6G6dwwlVCPLC86D1DuP/0ysYDPQm2 xhLljax2n7dwyMltdP+1wTezb2m1h32NEktxRqKhFnNRcSIAPZAB6eIDAAA= X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrHIsWRmVeSWpSXmKPExsVy+t/xu7ppt16lGby8oWax9fcsdos1e88x Wcw/co7V4t6lLUwWL/Y2slhcWzGX3eLlrHtsFpd3zWGz2Pa5hc1i7ZG77Bbrv85nsnh5uYfZ om0Wv8X/PTvYLVr2T2Fx4Pd48/Ili8fhji/sHjtn3WX32LSqk81j85J6j5a1x5g83u+7yubR t2UVo8el5uvsHp83yQVwRenZFOWXlqQqZOQXl9gqRRtaGOkZWlroGZlY6hkam8daGZkq6dvZ pKTmZJalFunbJehlHP73iLXgonTFk9eCDYzvRbsYOTgkBEwk9h9S62Lk4hASWMoo8e7TFaYu Rk6guIzEte6XLBC2sMSfa11sEEWvGCVuN5xlBkmwCRhJPFg+nxUkISLwh1Hi+rM3jCAOs8BE Rombc+8zglQJCwRLTF39hBXEZhFQlVh/7CQTyGpeATuJucukIDbIS+w/CDGUU8BeYsanRrDN QkAlv55sALN5BQQlTs58AmYzA9U3b53NPIFRYBaS1CwkqQWMTKsYRVJLi3PTc4uN9IoTc4tL 89L1kvNzNzECI3LbsZ9bdjCufPVR7xAjEwfjIUYJDmYlEV7xDy/ThHhTEiurUovy44tKc1KL DzGaAp09kVlKNDkfmBLySuINzQxMDU3MLA1MLc2MlcR52a6cTxMSSE8sSc1OTS1ILYLpY+Lg lGpgkn3o8GKWTv6xxH+LeVRvrdPYLdtbzdgZ+Kx2sbHbvdgte1Ve3i5flvX+7mbja2s5jPI+ N6YIl8+oX7M2+LcUxxMuGWvXVtf6Oa0VD1ZLLXzYu+FLQbT/UwVfH9uvDOIXysr1TeP3qmYa njW4nB4zbUnH29hWDsZY9aSGS7fvTZTfN20Vy6Z9ebFHJBcqrDr7+nDP0V8rXgnckZTYHZ+e lsez1jVgj5NqmWZubi3Tr5K2RzKdh75sjo9/9ONnVa2CtL+Btiqr3XMniwi/R3M5LHlmM1cY 5fvqvOw55d++/u6TK/Y3vuR6Kc1sfPDQaPPfiuN+Xw7HPbQzK6hV2n0y2rl5osANY+H8AwKl 00yVWIozEg21mIuKEwEbvj/oUQMAAA== X-CMS-MailID: 20240918134926eucas1p1df23a583b356505939d4c5501bd6c80f X-Msg-Generator: CA X-RootMTR: 20240918134926eucas1p1df23a583b356505939d4c5501bd6c80f X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20240918134926eucas1p1df23a583b356505939d4c5501bd6c80f References: <20240918134901.193033-1-m.wilczynski@samsung.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240918_064933_989419_B2829B07 X-CRM114-Status: GOOD ( 16.64 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add bindings for the mailbox controller. This work is based on the vendor kernel. [1] Link: https://github.com/revyos/thead-kernel.git [1] Signed-off-by: Michal Wilczynski --- .../bindings/mailbox/thead,th1520-mbox.yaml | 83 +++++++++++++++++++ MAINTAINERS | 1 + 2 files changed, 84 insertions(+) create mode 100644 Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml diff --git a/Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml b/Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml new file mode 100644 index 000000000000..f446fae76398 --- /dev/null +++ b/Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml @@ -0,0 +1,83 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) + +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mailbox/thead,th1520-mbox.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: T-head TH1520 Mailbox Controller + +description: | + The T-head mailbox controller enables two cores within the SoC to + communicate and coordinate by passing messages (e.g., data, status, + and control) through the mailbox channels. It also provides the ability + for one core to signal the other processor using interrupts. + +maintainers: + - Michal Wilczynski + +properties: + compatible: + const: thead,th1520-mbox + + reg: + description: Contains base addresses and sizes for the mailbox and remote ICUs. + items: + - description: Mailbox local base address + - description: Remote ICU 0 base address + - description: Remote ICU 1 base address + - description: Remote ICU 2 base address + + reg-names: + items: + - const: local_base + - const: remote_icu0 + - const: remote_icu1 + - const: remote_icu2 + + interrupts: + maxItems: 1 + description: Interrupt for the mailbox controller. + + clocks: + maxItems: 1 + description: Clock phandle for the mailbox controller. + + clock-names: + items: + - const: ipg + + icu_cpu_id: + $ref: /schemas/types.yaml#/definitions/uint32 + description: CPU ID for the ICU. + + '#mbox-cells': + const: 2 + description: Number of cells required to encode the mailbox specifier. + +additionalProperties: false + +required: + - compatible + - reg + - reg-names + - interrupts + - icu_cpu_id + - '#mbox-cells' + +dependencies: + clock-names: [ clocks ] + +examples: + - | + mbox_910t: mbox@ffffc38000 { + compatible = "thead,th1520-mbox"; + reg = <0xff 0xffc38000 0x0 0x4000>, + <0xff 0xffc44000 0x0 0x1000>, + <0xff 0xffc4c000 0x0 0x1000>, + <0xff 0xffc54000 0x0 0x1000>; + reg-names = "local_base", "remote_icu0", "remote_icu1", "remote_icu2"; + interrupts = <28 IRQ_TYPE_LEVEL_HIGH>; + icu_cpu_id = <0>; + #mbox-cells = <2>; + }; diff --git a/MAINTAINERS b/MAINTAINERS index 7331b30deef8..49198b2ed2e7 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -19719,6 +19719,7 @@ L: linux-riscv@lists.infradead.org S: Maintained T: git https://github.com/pdp7/linux.git F: Documentation/devicetree/bindings/clock/thead,th1520-clk-ap.yaml +F: Documentation/devicetree/bindings/mailbox/thead,th1520-mbox.yaml F: arch/riscv/boot/dts/thead/ F: drivers/clk/thead/clk-th1520-ap.c F: drivers/mailbox/mailbox-th1520.c