From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 04CAE21578F; Wed, 18 Jun 2025 10:42:04 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750243326; cv=none; b=Sw2RzsXaecDiK7Dku+JjKI2dkUbIUd4frJP2APVM3VkE2oKPoIZC6K5kkL8b1vmKgwX+Nj1EO8I9MA4CgSo9rmS6JKnGktJzBuV8UpfZdHoUoi0z/IQxRLcXKcE0C36JEJC+W/1QWVumOCdvlhZsE7fQh6Fp4v/N7Tc+BfAZ0C8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750243326; c=relaxed/simple; bh=5tDyHv0TRhrXWfWnQOFqPSvfRHoZHh6GNmgb/YdJgkU=; h=In-Reply-To:References:From:To:Cc:Subject:MIME-Version: Content-Disposition:Content-Type:Message-Id:Date; b=mlu2QRVhMgVq0HfDOUNK1a2YgnpN5Q3FsFWXu3RWsjlQfG/AdhZ4SxP5TJ4JjM+K5r43e8+PdvLDy0oonbIAw9GdX7r/al/WFrKnbjbS9AGdZF8JaJgF4XGcPXpSvGhfMaj99fZFHHHpBj8r1zqZ5doTtcGqd7gVVmeTKJXW+T4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=i4DE1g+8; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="i4DE1g+8" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=6mgaMI7KGD4pS6alDlp2sBmddfdxQnXyO5MWUiHeyco=; b=i4DE1g+8ScfscRCh/k2xpefEJ1 UI6NDd71UiLzgRKm73RURSRGirlStEveQZyNdvhDwPLgiPndLJHSalVwCXDqVZr/5Qa36qNmZoaS+ mvsl1uV/+VuSTUZRgYTqVdxwSR2s10Q+ZCe2Ot7uv8b/rwOwkjHQVG6FmqT6glt1GhjmUXfklWmaY Z8IKLbkGMxb6S2e12kPGuUxYXNGlbPt/5MvEc4QyIlpYd4qb2roG8M+PuJD8M9bfWiycjNBbJIIom A4EAWlVRVSfPLDIRuFBowBCYP+UjXVpzP3Nzb+JVtcVLZz4TiNzlP8HfFhDWMmhfokDqmHwF0aBpY wuxjfvYA==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:39068 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.96) (envelope-from ) id 1uRqEt-0006In-02; Wed, 18 Jun 2025 11:41:55 +0100 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.94.2) (envelope-from ) id 1uRqEE-004c7M-Go; Wed, 18 Jun 2025 11:41:14 +0100 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn , Heiner Kallweit Cc: Alexandre Torgue , Andrew Lunn , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Keguang Zhang , linux-arm-kernel@lists.infradead.org, linux-mips@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, Maxime Coquelin , netdev@vger.kernel.org, Paolo Abeni Subject: [PATCH net-next 2/2] net: stmmac: loongson1: get ls1b resource only once Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset="utf-8" Message-Id: Sender: Russell King Date: Wed, 18 Jun 2025 11:41:14 +0100 ls1b_dwmac_syscon_init() was getting the stmmac iomem resource to detect which GMAC block is being used. Move this to a separate setup() function that only runs at probe time, so it can sensibly behave with an unrecognised resource adress. Use this to set a MAC index (id) which is then used in place of testing the base address. Signed-off-by: Russell King (Oracle) --- .../ethernet/stmicro/stmmac/dwmac-loongson1.c | 49 ++++++++++++++----- 1 file changed, 37 insertions(+), 12 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c index 78d9540be10c..32b5d1492e2e 100644 --- a/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-loongson1.c @@ -44,28 +44,50 @@ struct ls1x_dwmac { struct plat_stmmacenet_data *plat_dat; struct regmap *regmap; + unsigned int id; }; struct ls1x_data { + int (*setup)(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat); int (*init)(struct platform_device *pdev, void *bsp_priv); }; -static int ls1b_dwmac_syscon_init(struct platform_device *pdev, void *priv) +static int ls1b_dwmac_setup(struct platform_device *pdev, + struct plat_stmmacenet_data *plat_dat) { - struct ls1x_dwmac *dwmac = priv; - struct plat_stmmacenet_data *plat = dwmac->plat_dat; - struct regmap *regmap = dwmac->regmap; + struct ls1x_dwmac *dwmac = plat_dat->bsp_priv; struct resource *res; - unsigned long reg_base; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); if (!res) { + /* This shouldn't fail - stmmac_get_platform_resources() + * already mapped this resource. + */ dev_err(&pdev->dev, "Could not get IO_MEM resources\n"); return -EINVAL; } - reg_base = (unsigned long)res->start; - if (reg_base == LS1B_GMAC0_BASE) { + if (res->start == LS1B_GMAC0_BASE) { + dwmac->id = 0; + } else if (res->start == LS1B_GMAC1_BASE) { + dwmac->id = 1; + } else { + dev_err(&pdev->dev, "Invalid Ethernet MAC base address %pR", + res); + return -EINVAL; + } + + return 0; +} + +static int ls1b_dwmac_syscon_init(struct platform_device *pdev, void *priv) +{ + struct ls1x_dwmac *dwmac = priv; + struct plat_stmmacenet_data *plat = dwmac->plat_dat; + struct regmap *regmap = dwmac->regmap; + + if (dwmac->id == 0) { switch (plat->phy_interface) { case PHY_INTERFACE_MODE_RGMII_ID: regmap_update_bits(regmap, LS1X_SYSCON0, @@ -84,7 +106,7 @@ static int ls1b_dwmac_syscon_init(struct platform_device *pdev, void *priv) } regmap_update_bits(regmap, LS1X_SYSCON0, GMAC0_SHUT, 0); - } else if (reg_base == LS1B_GMAC1_BASE) { + } else if (dwmac->id == 1) { regmap_update_bits(regmap, LS1X_SYSCON0, GMAC1_USE_UART1 | GMAC1_USE_UART0, GMAC1_USE_UART1 | GMAC1_USE_UART0); @@ -108,10 +130,6 @@ static int ls1b_dwmac_syscon_init(struct platform_device *pdev, void *priv) } regmap_update_bits(regmap, LS1X_SYSCON1, GMAC1_SHUT, 0); - } else { - dev_err(&pdev->dev, "Invalid Ethernet MAC base address %lx", - reg_base); - return -EINVAL; } return 0; @@ -183,10 +201,17 @@ static int ls1x_dwmac_probe(struct platform_device *pdev) dwmac->plat_dat = plat_dat; dwmac->regmap = regmap; + if (data->setup) { + ret = data->setup(pdev, plat_dat); + if (ret) + return ret; + } + return devm_stmmac_pltfr_probe(pdev, plat_dat, &stmmac_res); } static const struct ls1x_data ls1b_dwmac_data = { + .setup = ls1b_dwmac_setup, .init = ls1b_dwmac_syscon_init, }; -- 2.30.2