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Received: from shell.armlinux.org.uk ([fd8f:7570:feb6:1:5054:ff:fe00:4ec]:54294) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1w1BhZ-000000001bH-1R66; Fri, 13 Mar 2026 23:13:53 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1w1BhR-000000000Bt-4A74; Fri, 13 Mar 2026 23:13:46 +0000 Date: Fri, 13 Mar 2026 23:13:45 +0000 From: "Russell King (Oracle)" To: "\\Jitendra Vegiraju" Cc: netdev@vger.kernel.org, alexandre.torgue@foss.st.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, mcoquelin.stm32@gmail.com, bcm-kernel-feedback-list@broadcom.com, richardcochran@gmail.com, ast@kernel.org, daniel@iogearbox.net, hawk@kernel.org, john.fastabend@gmail.com, rohan.g.thomas@altera.com, linux-kernel@vger.kernel.org, linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, bpf@vger.kernel.org, andrew+netdev@lunn.ch, horms@kernel.org, sdf@fomichev.me, me@ziyao.cc, siyanteng@cqsoftware.com.cn, prabhakar.mahadev-lad.rj@bp.renesas.com, weishangjuan@eswincomputing.com, wens@kernel.org, vladimir.oltean@nxp.com, lizhi2@eswincomputing.com, boon.khai.ng@altera.com, maxime.chevallier@bootlin.com, matthew.gerlach@altera.com, chenchuangyu@xiaomi.com, yangtiezhu@loongson.cn, ovidiu.panait.rb@renesas.com, chenhuacai@kernel.org, florian.fainelli@broadcom.com, quic_abchauha@quicinc.com Subject: Re: [PATCH net-next v7 2/5] net: stmmac: Add DW25GMAC support in stmmac core driver Message-ID: References: <20260313222206.778760-1-jitendra.vegiraju@broadcom.com> <20260313222206.778760-3-jitendra.vegiraju@broadcom.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260313222206.778760-3-jitendra.vegiraju@broadcom.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260313_161413_474495_DF5499DA X-CRM114-Status: GOOD ( 13.07 ) 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 On Fri, Mar 13, 2026 at 03:22:03PM -0700, \Jitendra Vegiraju wrote: > @@ -42,13 +42,18 @@ > #define DWXGMAC_CORE_2_20 0x22 > #define DWXLGMAC_CORE_2_00 0x20 > > +#define DW25GMAC_CORE_3_20 0x32 > +#define DW25GMAC_CORE_4_00 0x40 > + Do these live in the same versioning numberspace as DWXGMAC and DWXLGMAC? > +int dw25gmac_setup(struct stmmac_priv *priv) > +{ > + struct mac_device_info *mac = priv->hw; > + > + dev_info(priv->device, "\tDW25GMAC\n"); > + > + priv->dev->priv_flags |= IFF_UNICAST_FLT; > + mac->pcsr = priv->ioaddr; > + mac->multicast_filter_bins = priv->plat->multicast_filter_bins; > + mac->unicast_filter_entries = priv->plat->unicast_filter_entries; > + mac->mcast_bits_log2 = 0; > + > + if (mac->multicast_filter_bins) > + mac->mcast_bits_log2 = ilog2(mac->multicast_filter_bins); The above seems to be common amongst the other two setup functions. Maybe there should be a helper for this? > + > + mac->link.caps = MAC_ASYM_PAUSE | MAC_SYM_PAUSE | > + MAC_1000FD | MAC_2500FD | MAC_5000FD | > + MAC_10000FD | MAC_25000FD; > + mac->link.duplex = 0; > + mac->link.speed10 = XGMAC_CONFIG_SS_10_MII; > + mac->link.speed100 = XGMAC_CONFIG_SS_100_MII; > + mac->link.speed1000 = XGMAC_CONFIG_SS_1000_GMII; > + mac->link.speed2500 = XGMAC_CONFIG_SS_2500_GMII; > + mac->link.xgmii.speed2500 = XGMAC_CONFIG_SS_2500; > + mac->link.xgmii.speed5000 = XGMAC_CONFIG_SS_5000; > + mac->link.xgmii.speed10000 = XGMAC_CONFIG_SS_10000; > + mac->link.xgmii.speed25000 = XGMAC_CONFIG_SS_25000; > + mac->link.speed_mask = XGMAC_CONFIG_SS_MASK; Is there any point populating link.speed10 and link.speed100 ? You're telling phylink that 10/100M speeds aren't supported in link.caps, so these speeds won't ever be used. > + > + mac->mii.addr = XGMAC_MDIO_ADDR; > + mac->mii.data = XGMAC_MDIO_DATA; > + mac->mii.addr_mask = GENMASK(20, 16); > + mac->mii.reg_mask = GENMASK(15, 0); > + mac->mii.clk_csr_mask = GENMASK(21, 19); This will be the third instance of this particular mii data setup. Please consider adding a function to do this setup. Thanks. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!