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 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 373CEFD0045 for ; Sun, 1 Mar 2026 01:53:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:Cc:To:From:Reply-To:Content-Type: Content-ID:Content-Description:Resent-Date:Resent-From:Resent-Sender: Resent-To:Resent-Cc:Resent-Message-ID:In-Reply-To:References:List-Owner; bh=iaF9fXQFpW16oCHJ8Nn2HkDCjVADYNuQp433eiTkgC4=; b=XVV5PbA5QHStToTJ1zORv82V7T JIGTb4IHZlLfC2xdxdOjQ1WYFcpqrdC/2ZyKwqKafSuqrrrlNcn3hTzlfrItZzCUjlacLGXPeFJO0 vbkdBjaCrOxAYd79yyfF0mW1h2GabTRObq/eCd9L7d/afhtXFKbIWGWQyJqOZta9zTyL7COinlyJa FwCUZPvps4EgT/DMwTlnLk27FeP0DfGz++EjEdNrQC/vpAWsJyGp3HJJ4jjimtyv/hfpzpjFexykS S/jWqBgol/PPggCN8mORcYf2XKYL9vNiCENH0n2Xb6Th8I/A0gWXglvbgGqBeilK2uj3t6roSEK79 rHbMGVmA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vwW0G-0000000Aggt-0dJj; Sun, 01 Mar 2026 01:53:52 +0000 Received: from tor.source.kernel.org ([2600:3c04:e001:324:0:1991:8:25]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vwW0F-0000000Agg3-08Ma for linux-arm-kernel@lists.infradead.org; Sun, 01 Mar 2026 01:53:51 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by tor.source.kernel.org (Postfix) with ESMTP id 784406012A; Sun, 1 Mar 2026 01:53:50 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5075AC19421; Sun, 1 Mar 2026 01:53:49 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772330030; bh=tU83mg14wxZWjnXUfKEv83yCfZxM4LKLY9c1OLpO47s=; h=From:To:Cc:Subject:Date:From; b=AuZHyJ/O0ZH83wVGBBRSQC/rcyKAOvUJ6aTj/uS2UUiUA1zuB+ZwE+d+EfNNMuOtb 1/meZ14tea/eUGpS/il8UTrDSrmLt56MXZ4nmfamksX3Kflo18vIN7+bl5R+PG7gB0 I3uj5IKsVHNjbTrrzZxcTaTQIbGFwPsOPvwTpdUd7V/TFFJjxVo3UP7zURvwZZpcO7 ZDHDxN/g2eleDcJMv2Q9VerPPh88ulfcgnx8t0kYFnTjYQukCS5mnBnRL4j3OLZNPs WhPS/3CPsa5kv2+9bLhyfM6NTe/q72rWKP4C0sdWlPN7IBhvSRLulaz6dcocIRxuUo eAqIL4j3ItS4Q== From: Sasha Levin To: stable@vger.kernel.org, chenhuacai@kernel.org Cc: Hongliang Wang , Huacai Chen , Jakub Kicinski , netdev@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org Subject: FAILED: Patch "net: stmmac: dwmac-loongson: Set clk_csr_i to 100-150MHz" failed to apply to 5.15-stable tree Date: Sat, 28 Feb 2026 20:53:47 -0500 Message-ID: <20260301015348.1720657-1-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 MIME-Version: 1.0 X-Patchwork-Hint: ignore X-stable: review Content-Transfer-Encoding: 8bit X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The patch below does not apply to the 5.15-stable tree. If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to . Thanks, Sasha ------------------ original commit in Linus's tree ------------------ >From e1aa5ef892fb4fa9014a25e87b64b97347919d37 Mon Sep 17 00:00:00 2001 From: Huacai Chen Date: Tue, 3 Feb 2026 14:29:01 +0800 Subject: [PATCH] net: stmmac: dwmac-loongson: Set clk_csr_i to 100-150MHz Current clk_csr_i setting of Loongson STMMAC (including LS7A1000/2000 and LS2K1000/2000/3000) are copy & paste from other drivers. In fact, Loongson STMMAC use 125MHz clocks and need 62 freq division to within 2.5MHz, meeting most PHY MDC requirement. So fix by setting clk_csr_i to 100-150MHz, otherwise some PHYs may link fail. Cc: stable@vger.kernel.org Fixes: 30bba69d7db40e7 ("stmmac: pci: Add dwmac support for Loongson") Signed-off-by: Hongliang Wang Signed-off-by: Huacai Chen Link: https://patch.msgid.link/20260203062901.2158236-1-chenhuacai@loongson.cn Signed-off-by: Jakub Kicinski --- drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c index 107a7c84ace80..c05e3e7a539cf 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson.c @@ -91,8 +91,8 @@ static void loongson_default_data(struct pci_dev *pdev, /* Get bus_id, this can be overwritten later */ plat->bus_id = pci_dev_id(pdev); - /* clk_csr_i = 20-35MHz & MDC = clk_csr_i/16 */ - plat->clk_csr = STMMAC_CSR_20_35M; + /* clk_csr_i = 100-150MHz & MDC = clk_csr_i/62 */ + plat->clk_csr = STMMAC_CSR_100_150M; plat->core_type = DWMAC_CORE_GMAC; plat->force_sf_dma_mode = 1; -- 2.51.0