From mboxrd@z Thu Jan 1 00:00:00 1970 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=-17.5 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,UNPARSEABLE_RELAY, 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 8EBA6C4338F for ; Tue, 10 Aug 2021 08:14:03 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 54ED66105A for ; Tue, 10 Aug 2021 08:14:03 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 54ED66105A Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=mediatek.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.infradead.org 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:MIME-Version:References: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=hHyyTMzH1EJ/ziVlytUrhXsnqq/TYEEI3kLRirxlRiA=; b=Ic+/rOjvk9d3Ox 1/PTS/ZyeW1ieVyragu0/wBQ7JKhLZp85Zv9Ej0KBpkmROdxE1dHQvMDyk7nMGKhcY9QipmlzuCJU 8IItvtqSItQgcETD3izX+4IdLmCDjqRy+QABdNn0oQRZJ04fXkaSARXX3gO2KvwcD4ib2EYomg5/f w6EdzexYzDJGowRoeeDM1Isf6D01FidV9XJKX/wXV6i+3k55Ts16mGiTVjtGsu0N1SjtNqGC4k6ZW Tf2L9ZR/B2DxLfnOEbcWv/qRD3fww2Azb1l8rkpBdi/0Q2ox/NECcIvE7kTiBa1T6GF8ixR2nvgq5 0F3O4Iub+zVsCmAMv2fA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDMtQ-002vj9-B5; Tue, 10 Aug 2021 08:13:48 +0000 Received: from mailgw02.mediatek.com ([216.200.240.185]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1mDMsU-002vGN-7p; Tue, 10 Aug 2021 08:12:55 +0000 X-UUID: b766ad29fc2942ebab4371c2dc59628e-20210810 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=mediatek.com; s=dk; h=Content-Transfer-Encoding:Content-Type:MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:CC:To:From; bh=V4KeojH1A6W8H7q3yNWPgzliM5Y9osycpx9fcKlYG8I=; b=eh2Cu9WiUey5Y8zlO1WHJYAH3sLyaXjN9IpiL3FRtqDRHyl7HR35PRa6ptKH8A+AyczeIrIsJs5r6Q6yFYTWByF4OoVAK3gLgdKE19uEplqvsM9djw/JKiCkyJaTvOCEVPa7g2d84fvYKW3Re9cBAC/q+4F62ChK6EusL+mCzNc=; X-UUID: b766ad29fc2942ebab4371c2dc59628e-20210810 Received: from mtkcas66.mediatek.inc [(172.29.193.44)] by mailgw02.mediatek.com (envelope-from ) (musrelay.mediatek.com ESMTP with TLSv1.2 ECDHE-RSA-AES256-SHA384 256/256) with ESMTP id 2059438796; Tue, 10 Aug 2021 01:12:48 -0700 Received: from MTKMBS07N2.mediatek.inc (172.21.101.141) by MTKMBS62N2.mediatek.inc (172.29.193.42) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 10 Aug 2021 01:09:31 -0700 Received: from mtkcas10.mediatek.inc (172.21.101.39) by mtkmbs07n2.mediatek.inc (172.21.101.141) with Microsoft SMTP Server (TLS) id 15.0.1497.2; Tue, 10 Aug 2021 16:09:29 +0800 Received: from localhost.localdomain (10.17.3.154) by mtkcas10.mediatek.inc (172.21.101.73) with Microsoft SMTP Server id 15.0.1497.2 via Frontend Transport; Tue, 10 Aug 2021 16:09:28 +0800 From: Yong Wu To: Krzysztof Kozlowski , Rob Herring , Matthias Brugger CC: Krzysztof Kozlowski , Joerg Roedel , Will Deacon , Robin Murphy , "Tomasz Figa" , , , , , , , , , , , , , Ikjoon Jang Subject: [PATCH v3 02/13] dt-bindings: memory: mediatek: Add mt8195 smi sub common Date: Tue, 10 Aug 2021 16:08:48 +0800 Message-ID: <20210810080859.29511-3-yong.wu@mediatek.com> X-Mailer: git-send-email 2.18.0 In-Reply-To: <20210810080859.29511-1-yong.wu@mediatek.com> References: <20210810080859.29511-1-yong.wu@mediatek.com> MIME-Version: 1.0 X-MTK: N X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210810_011250_350953_F77C493A X-CRM114-Status: GOOD ( 17.01 ) X-BeenThere: linux-mediatek@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "Linux-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Add the binding for smi-sub-common. The SMI block diagram like this: IOMMU | | smi-common ------------------ | .... | larb0 larb7 <-max is 8 The smi-common connects with smi-larb and IOMMU. The maximum larbs number that connects with a smi-common is 8. If the engines number is over 8, sometimes we use a smi-sub-common which is nearly same with smi-common. It supports up to 8 input and 1 output(smi-common has 2 output) Something like: IOMMU | | smi-common --------------------- | | ... larb0 sub-common ... <-max is 8 ----------- | | ... <-max is 8 too. larb2 larb5 We don't need extra SW setting for smi-sub-common, only the sub-common has special clocks need to enable when the engines access dram. If it is sub-common, it should have a "mediatek,smi" phandle to point to its smi-common. meanwhile the sub-common only has one gals clock. Additionally, add a new property "mediatek,smi_sub_common" for this sub-common, this is needed in the IOMMU driver in which we create a device link between smi-common and the IOMMU device. If we add the smi-sub-common here, the IOMMU driver still need to find the smi-common device. thus, add this bool property to indicate if it is sub-common. Signed-off-by: Yong Wu --- change note: a. change mediatek, smi type from phandle-array to phandle from Rob. b. Add a new bool property (mediatek,smi_sub_common) to indicate this is smi-sub-common. the reason is as above. --- .../mediatek,smi-common.yaml | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml index 602592b6c3f5..26bb9903864b 100644 --- a/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml +++ b/Documentation/devicetree/bindings/memory-controllers/mediatek,smi-common.yaml @@ -38,6 +38,7 @@ properties: - mediatek,mt8192-smi-common - mediatek,mt8195-smi-common-vdo - mediatek,mt8195-smi-common-vpp + - mediatek,mt8195-smi-sub-common - description: for mt7623 items: @@ -67,6 +68,14 @@ properties: minItems: 2 maxItems: 4 + mediatek,smi: + $ref: /schemas/types.yaml#/definitions/phandle + description: a phandle to the smi-common node above. Only for sub-common. + + mediatek,smi_sub_common: + type: boolean + description: Indicate if this is smi-sub-common. + required: - compatible - reg @@ -93,6 +102,27 @@ allOf: - const: smi - const: async + - if: # only for sub common + properties: + compatible: + contains: + enum: + - mediatek,mt8195-smi-sub-common + then: + required: + - mediatek,smi + - mediatek,smi_sub_common + properties: + clock: + items: + minItems: 3 + maxItems: 3 + clock-names: + items: + - const: apb + - const: smi + - const: gals0 + - if: # for gen2 HW that have gals properties: compatible: -- 2.18.0 _______________________________________________ Linux-mediatek mailing list Linux-mediatek@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-mediatek