From patchwork Fri Mar 31 13:12:38 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13195984 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 C9B21C77B6C for ; Fri, 31 Mar 2023 13:13:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232377AbjCaNNm (ORCPT ); Fri, 31 Mar 2023 09:13:42 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47550 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232760AbjCaNNk (ORCPT ); Fri, 31 Mar 2023 09:13:40 -0400 Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 848611B7D0; Fri, 31 Mar 2023 06:13:38 -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 ams.source.kernel.org (Postfix) with ESMTPS id 2CC0CB82F6A; Fri, 31 Mar 2023 13:13:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 846DEC433EF; Fri, 31 Mar 2023 13:13:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1680268415; bh=hLAVugf0wJMRhEaxQsvqqH7c9szSLlu5vrY4HfSo9tU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=EIbzxKeiYwg4H5W5KbXKGlMazIyivy0rCuyVuSKwL6EuM9HG2PbqrCHGOgpdq6AUj Zx/DsteS5DrWzVcrx0dKvjlwx3Z4f2HLUvT5IXxvgZ3H9jEpax0Qoc89VqONaU77+Q 7zUzavyXeHuqR2kYJ2tHBIHXYXtQmgH4FnoQ/V1p8RurjADnS0MIoC36MrHkJGfzlP aWZAroYpC23dNVzCrW09maHjIylqy5BpOkETQkw68ED994GniBBc9qPEJDLSXY/vXg fI70Mp+tWHu9kx1lwikE0O6haXvo1Zks7pYEhuaLjUNuu+SEWD1CuZU7BsZKwvpNsb glkwmp/b1s0PA== From: Lorenzo Bianconi To: netdev@vger.kernel.org Cc: davem@davemloft.net, edumazet@google.com, pabeni@redhat.com, kuba@kernel.org, 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 v2 net-next 02/10] net: ethernet: mtk_wed: move cpuboot in a dedicated dts node Date: Fri, 31 Mar 2023 15:12:38 +0200 Message-Id: <56ed497762b1c031c553210a0e5c7717c6069642.1680268101.git.lorenzo@kernel.org> 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 cpuboot memory region is not part of the RAM MT7986 SoC, move cpuboot in a deidicated syscon node. Keep backward-compatibility with older dts version where cpuboot was defined as reserved-memory child node. Signed-off-by: Lorenzo Bianconi --- drivers/net/ethernet/mediatek/mtk_wed_mcu.c | 34 +++++++++++++++++---- drivers/net/ethernet/mediatek/mtk_wed_wo.h | 3 +- 2 files changed, 30 insertions(+), 7 deletions(-) diff --git a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c index 6624f6d6abdd..797c3b412ab6 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed_mcu.c +++ b/drivers/net/ethernet/mediatek/mtk_wed_mcu.c @@ -18,12 +18,23 @@ static u32 wo_r32(struct mtk_wed_wo *wo, u32 reg) { - return readl(wo->boot.addr + reg); + u32 val; + + if (!wo->boot_regmap) + return readl(wo->boot.addr + reg); + + if (regmap_read(wo->boot_regmap, reg, &val)) + val = ~0; + + return val; } static void wo_w32(struct mtk_wed_wo *wo, u32 reg, u32 val) { - writel(val, wo->boot.addr + reg); + if (wo->boot_regmap) + regmap_write(wo->boot_regmap, reg, val); + else + writel(val, wo->boot.addr + reg); } static struct sk_buff * @@ -316,10 +327,21 @@ mtk_wed_mcu_load_firmware(struct mtk_wed_wo *wo) return ret; } - wo->boot.name = "wo-boot"; - ret = mtk_wed_get_reserved_memory_region(wo, &wo->boot); - if (ret) - return ret; + wo->boot_regmap = syscon_regmap_lookup_by_phandle(wo->hw->node, + "mediatek,wo-cpuboot"); + if (IS_ERR(wo->boot_regmap)) { + if (wo->boot_regmap != ERR_PTR(-ENODEV)) + return PTR_ERR(wo->boot_regmap); + + /* For backward compatibility, we need to check if cpu_boot + * is defined through reserved memory property. + */ + wo->boot_regmap = NULL; + wo->boot.name = "wo-boot"; + ret = mtk_wed_get_reserved_memory_region(wo, &wo->boot); + if (ret) + return ret; + } /* set dummy cr */ wed_w32(wo->hw->wed_dev, MTK_WED_SCR0 + 4 * MTK_WED_DUMMY_CR_FWDL, diff --git a/drivers/net/ethernet/mediatek/mtk_wed_wo.h b/drivers/net/ethernet/mediatek/mtk_wed_wo.h index dbcf42ce9173..c03071203cc0 100644 --- a/drivers/net/ethernet/mediatek/mtk_wed_wo.h +++ b/drivers/net/ethernet/mediatek/mtk_wed_wo.h @@ -227,7 +227,8 @@ struct mtk_wed_wo_queue { struct mtk_wed_wo { struct mtk_wed_hw *hw; - struct mtk_wed_wo_memory_region boot; + struct mtk_wed_wo_memory_region boot; /* backward compatibility */ + struct regmap *boot_regmap; struct mtk_wed_wo_queue q_tx; struct mtk_wed_wo_queue q_rx;