From patchwork Mon Jan 2 15:32:15 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13086782 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 DA16BC3DA7A for ; Mon, 2 Jan 2023 15:32:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236244AbjABPcg (ORCPT ); Mon, 2 Jan 2023 10:32:36 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38342 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232479AbjABPcf (ORCPT ); Mon, 2 Jan 2023 10:32:35 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 26376CEE for ; Mon, 2 Jan 2023 07:32:35 -0800 (PST) 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 ams.source.kernel.org (Postfix) with ESMTPS id D629EB80D3E for ; Mon, 2 Jan 2023 15:32:33 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44A69C433EF; Mon, 2 Jan 2023 15:32:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1672673552; bh=Qtcw4YiYQC6vFVBPGLZh6FrLkSqwMP0taIG1GVnfjtE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=VBBi3sWBE/Mn/iau/k+xzY8WqvJCC5FbnO9wGUjxRUj+p81ODJX58SzIgMe6gDX3D pUn7t8cR1lszXlzDp3SVr1/hvv2lc5bxe8SZcJL/XoY7QBgPdyVQqjqXrFcA4980EP SSxIJ1un2UJKAe4CwTNzeIHAzlDOy4nCUR5gOfy7b6mmbs0AjTxe8O61/vBYI6YDTn RV310MLRE89WyCIizi/CBsCerOx1C1Uw46mMye6PLzQMP6HdG5pwMaMtaQx2s3GwIi jAae50RTO0QFbmxqM0zVyT1HakJQCkcXPG5uLwdvkZ6X+gVURHkSkts0HnKATUJZWx OLHOUtbF71Nxw== From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, lorenzo.bianconi@redhat.com, nbd@nbd.name, john@phrozen.org, sean.wang@mediatek.com, Mark-MC.Lee@mediatek.com, sujuan.chen@mediatek.com, daniel@makrotopia.org Subject: [PATCH net-next 1/5] net: ethernet: mtk_eth_soc: introduce mtk_hw_reset utility routine Date: Mon, 2 Jan 2023 16:32:15 +0100 Message-Id: <95bfdfb7061fe8ce4775a6367c9c3d63696a7b1c.1672672965.git.lorenzo@kernel.org> X-Mailer: git-send-email 2.39.0 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 This is a preliminary patch to add Wireless Ethernet Dispatcher reset support. Tested-by: Daniel Golle Co-developed-by: Sujuan Chen Signed-off-by: Sujuan Chen Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/mediatek/mtk_eth_soc.c | 36 +++++++++++++-------- 1 file changed, 22 insertions(+), 14 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_eth_soc.c b/drivers/net/ethernet/mediatek/mtk_eth_soc.c index e3de9a53b2d9..ce429deea389 100644 --- a/drivers/net/ethernet/mediatek/mtk_eth_soc.c +++ b/drivers/net/ethernet/mediatek/mtk_eth_soc.c @@ -3471,6 +3471,27 @@ static void mtk_set_mcr_max_rx(struct mtk_mac *mac, u32 val) mtk_w32(mac->hw, mcr_new, MTK_MAC_MCR(mac->id)); } +static void mtk_hw_reset(struct mtk_eth *eth) +{ + u32 val; + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { + regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN, 0); + val = RSTCTRL_PPE0_V2; + } else { + val = RSTCTRL_PPE0; + } + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_RSTCTRL_PPE1)) + val |= RSTCTRL_PPE1; + + ethsys_reset(eth, RSTCTRL_ETH | RSTCTRL_FE | val); + + if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) + regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN, + 0x3ffffff); +} + static int mtk_hw_init(struct mtk_eth *eth) { u32 dma_mask = ETHSYS_DMA_AG_MAP_PDMA | ETHSYS_DMA_AG_MAP_QDMA | @@ -3510,22 +3531,9 @@ static int mtk_hw_init(struct mtk_eth *eth) return 0; } - if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { - regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN, 0); - val = RSTCTRL_PPE0_V2; - } else { - val = RSTCTRL_PPE0; - } - - if (MTK_HAS_CAPS(eth->soc->caps, MTK_RSTCTRL_PPE1)) - val |= RSTCTRL_PPE1; - - ethsys_reset(eth, RSTCTRL_ETH | RSTCTRL_FE | val); + mtk_hw_reset(eth); if (MTK_HAS_CAPS(eth->soc->caps, MTK_NETSYS_V2)) { - regmap_write(eth->ethsys, ETHSYS_FE_RST_CHK_IDLE_EN, - 0x3ffffff); - /* Set FE to PDMAv2 if necessary */ val = mtk_r32(eth, MTK_FE_GLO_MISC); mtk_w32(eth, val | BIT(4), MTK_FE_GLO_MISC);