From patchwork Mon Mar 20 16:58:02 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13181638 X-Patchwork-Delegate: kuba@kernel.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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E1AB0C77B60 for ; Mon, 20 Mar 2023 17:07:03 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233375AbjCTRHB (ORCPT ); Mon, 20 Mar 2023 13:07:01 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44772 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232489AbjCTRGW (ORCPT ); Mon, 20 Mar 2023 13:06:22 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F2CC144A1; Mon, 20 Mar 2023 10:01:11 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 11BE161707; Mon, 20 Mar 2023 16:59:22 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 226FBC433EF; Mon, 20 Mar 2023 16:59:20 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1679331561; bh=JtDTeOb+XfC/OkGaG3mNl+0+89/XnhPEztBv7Gcpg0k=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=mgnp5ehW8FoncfryGLBiiQ7ZfcPZRvHraZzOp9LBphJgbNAoghJsjwI/+It5GkAWf AVcHZIwVL36R39b4KNfytJXLwE491hffko00Y36Fmxw0879/hrWfELOoWamZPb7yPM fcMgV51QMuZNCwCYHj7kgvc4noeICyEwxh9xcg1txK59UMhrwufkGyXj1uS8fwgjHi kjcybCx3hYxgqVJd0quEib0FtpXD4F/8PxsFcEKh5J0h60QhC86P6/TOxoOvMcxIAD vsb2FjYq8S8m2y9G391+VgXH+cAlKka9nJKWQMCGassbE7Zp3AB0xpNIvr0X4vNKRt EjKLAk3sRZGjQ== From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, matthias.bgg@gmail.com, linux-mediatek@lists.infradead.org, nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, lorenzo.bianconi@redhat.com, daniel@makrotopia.org, krzysztof.kozlowski+dt@linaro.org, robh+dt@kernel.org, devicetree@vger.kernel.org Subject: [PATCH net-next 08/10] net: ethernet: mtk_wed: move dlm a dedicated dts node Date: Mon, 20 Mar 2023 17:58:02 +0100 Message-Id: X-Mailer: git-send-email 2.39.2 In-Reply-To: References: MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org Since the dlm memory region is not part of the RAM SoC, move dlm in a deidicated syscon node. This patch helps to keep backward-compatibility with older version of uboot codebase where we have a limit of 8 reserved-memory dts child nodes. Keep backward-compatibility with older dts version where dlm was defined as reserved-memory child node. Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/mediatek/mtk_wed.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/drivers/net/ethernet/mediatek/mtk_wed.c b/drivers/net/ethernet/mediatek/mtk_wed.c index 95d890870984..e479ff924ed6 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed.c +++ b/drivers/net/ethernet/mediatek/mtk_wed.c @@ -799,6 +799,24 @@ mtk_wed_rro_alloc(struct mtk_wed_device *dev) struct device_node *np; int index; + np = of_parse_phandle(dev->hw->node, "mediatek,wo-dlm", 0); + if (np) { + struct resource res; + int ret; + + ret = of_address_to_resource(np, 0, &res); + of_node_put(np); + + if (ret < 0) + return ret; + + dev->rro.miod_phys = res.start; + goto out; + } + + /* For backward compatibility, we need to check if DLM + * node is defined through reserved memory property. + */ index = of_property_match_string(dev->hw->node, "memory-region-names", "wo-dlm"); if (index < 0) @@ -815,6 +833,7 @@ mtk_wed_rro_alloc(struct mtk_wed_device *dev) return -ENODEV; dev->rro.miod_phys = rmem->base; +out: dev->rro.fdbk_phys = MTK_WED_MIOD_COUNT + dev->rro.miod_phys; return mtk_wed_rro_ring_alloc(dev, &dev->rro.ring,