From patchwork Mon Jul 12 06:10:14 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg Kroah-Hartman X-Patchwork-Id: 476301 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=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 8C1DAC11F6B for ; Mon, 12 Jul 2021 06:24:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7440C611CC for ; Mon, 12 Jul 2021 06:24:41 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234407AbhGLG12 (ORCPT ); Mon, 12 Jul 2021 02:27:28 -0400 Received: from mail.kernel.org ([198.145.29.99]:46660 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235161AbhGLG0Q (ORCPT ); Mon, 12 Jul 2021 02:26:16 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id AA3D961165; Mon, 12 Jul 2021 06:23:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1626070997; bh=mR8XwKbY3zbPxcEAG1/KldHv80a5NfPnUl4SBVEFgNg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=RP2+U07pxMMXhehLvFjHrTglIN1R1Pq3DjeZ6mq6wNPxZBZNukbxXa+Up9L4+oQZS +WUdgw1jRlppSxYskCMMWlrepJrB7LtWaUeW1BGYe4raPtI8lIROjF++eFNPSx9mYd ZPDD0Y6SbzXaF86O1QZouXfVLxLNykwhtKzaD1ao= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Jian-Hong Pan , Florian Fainelli , "David S. Miller" , Sasha Levin Subject: [PATCH 5.4 230/348] net: bcmgenet: Fix attaching to PYH failed on RPi 4B Date: Mon, 12 Jul 2021 08:10:14 +0200 Message-Id: <20210712060732.647272338@linuxfoundation.org> X-Mailer: git-send-email 2.32.0 In-Reply-To: <20210712060659.886176320@linuxfoundation.org> References: <20210712060659.886176320@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Jian-Hong Pan [ Upstream commit b2ac9800cfe0f8da16abc4e74e003440361c112e ] The Broadcom UniMAC MDIO bus from mdio-bcm-unimac module comes too late. So, GENET cannot find the ethernet PHY on UniMAC MDIO bus. This leads GENET fail to attach the PHY as following log: bcmgenet fd580000.ethernet: GENET 5.0 EPHY: 0x0000 ... could not attach to PHY bcmgenet fd580000.ethernet eth0: failed to connect to PHY uart-pl011 fe201000.serial: no DMA platform data libphy: bcmgenet MII bus: probed ... unimac-mdio unimac-mdio.-19: Broadcom UniMAC MDIO bus This patch adds the soft dependency to load mdio-bcm-unimac module before genet module to avoid the issue. Fixes: 9a4e79697009 ("net: bcmgenet: utilize generic Broadcom UniMAC MDIO controller driver") Buglink: https://bugzilla.kernel.org/show_bug.cgi?id=213485 Signed-off-by: Jian-Hong Pan Signed-off-by: Florian Fainelli Signed-off-by: David S. Miller Signed-off-by: Sasha Levin --- drivers/net/ethernet/broadcom/genet/bcmgenet.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c index b27da024aa9d..21669a42718c 100644 --- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c +++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c @@ -3741,3 +3741,4 @@ MODULE_AUTHOR("Broadcom Corporation"); MODULE_DESCRIPTION("Broadcom GENET Ethernet controller driver"); MODULE_ALIAS("platform:bcmgenet"); MODULE_LICENSE("GPL"); +MODULE_SOFTDEP("pre: mdio-bcm-unimac");