From nobody Fri Oct 3 23:02:04 2025 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 89DA72F6198 for ; Fri, 22 Aug 2025 09:40:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=195.135.223.130 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755855634; cv=none; b=V3JyFVDvOuPz9CAyleQSbx0hEFp1KBmLYFdrg8jYn2fSXw2Fq0ZPmldubrwKcmcVdBuYFjceiUXLZnKEghRDWw43bYKpLK+rLXPgStRD9NaIyfWduCQ1w5a/YHm9htpOJslqZwMfnzCQVHKwFjd1SE/xYfM9k7fWYahgqDbhXsg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755855634; c=relaxed/simple; bh=Mfh6IznOBaQuafYVuPQLNT0TvqF/soo23QMczzfIN7w=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=eCsY2lF+5/bozW6qXJx3BDMUkXL3Mu8DeB4T9eFEOP2AXsxIclEW9pbuBjSKIYtQ16U7Kw6qqNKDIVMtvo4/ltiR4UA3IvwBUX5621NJKCraeqc5wQAmSKM0MpxEHOemYNOVKeuC9n/Azr371HvGYWaZZQXBSxud5ePG3lWDrQY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de; spf=pass smtp.mailfrom=suse.de; arc=none smtp.client-ip=195.135.223.130 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=suse.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=suse.de Received: from imap1.dmz-prg2.suse.org (imap1.dmz-prg2.suse.org [IPv6:2a07:de40:b281:104:10:150:64:97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by smtp-out1.suse.de (Postfix) with ESMTPS id DEF4921D7D; Fri, 22 Aug 2025 09:35:10 +0000 (UTC) Authentication-Results: smtp-out1.suse.de; none Received: from imap1.dmz-prg2.suse.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by imap1.dmz-prg2.suse.org (Postfix) with ESMTPS id D323C13A31; Fri, 22 Aug 2025 09:35:09 +0000 (UTC) Received: from dovecot-director2.suse.de ([2a07:de40:b281:106:10:150:64:167]) by imap1.dmz-prg2.suse.org with ESMTPSA id oOxBMc05qGihMAAAD6G6ig (envelope-from ); Fri, 22 Aug 2025 09:35:09 +0000 From: Stanimir Varbanov To: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-rpi-kernel@lists.infradead.org, Broadcom internal kernel review list Cc: Andrew Lunn , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Andrea della Porta , Nicolas Ferre , Claudiu Beznea , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov , stable@vger.kernel.org, Andrew Lunn Subject: [PATCH v2 1/5] net: cadence: macb: Set upper 32bits of DMA ring buffer Date: Fri, 22 Aug 2025 12:34:36 +0300 Message-ID: <20250822093440.53941-2-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250822093440.53941-1-svarbanov@suse.de> References: <20250822093440.53941-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Spam-Level: X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-4.00 / 50.00]; REPLY(-4.00)[]; TAGGED_RCPT(0.00)[dt,netdev] X-Rspamd-Queue-Id: DEF4921D7D X-Rspamd-Pre-Result: action=no action; module=replies; Message is reply to one we originated X-Rspamd-Action: no action X-Spam-Flag: NO X-Spam-Score: -4.00 Content-Type: text/plain; charset="utf-8" In case of rx queue reset and 64bit capable hardware, set the upper 32bits of DMA ring buffer address. Cc: stable@vger.kernel.org # v4.6+ Fixes: 9ba723b081a2 ("net: macb: remove BUG_ON() and reset the queue to han= dle RX errors") Credits-to: Phil Elwell Credits-to: Jonathan Bell Signed-off-by: Stanimir Varbanov Reviewed-by: Andrew Lunn Acked-by: Nicolas Ferre Reviewed-by: Claudiu Beznea --- v1 -> v2:=20 - Added credits. - Use lower_32_bits() for RBQP register writes for consistency (Nicolas). - Added Fixes tag. drivers/net/ethernet/cadence/macb_main.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/etherne= t/cadence/macb_main.c index ce95fad8cedd..36717e7e5811 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -1634,7 +1634,11 @@ static int macb_rx(struct macb_queue *queue, struct = napi_struct *napi, macb_writel(bp, NCR, ctrl & ~MACB_BIT(RE)); =20 macb_init_rx_ring(queue); - queue_writel(queue, RBQP, queue->rx_ring_dma); + queue_writel(queue, RBQP, lower_32_bits(queue->rx_ring_dma)); 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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Andrea della Porta , Nicolas Ferre , Claudiu Beznea , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov , Andrew Lunn , Conor Dooley Subject: [PATCH v2 2/5] dt-bindings: net: cdns,macb: Add compatible for Raspberry Pi RP1 Date: Fri, 22 Aug 2025 12:34:37 +0300 Message-ID: <20250822093440.53941-3-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250822093440.53941-1-svarbanov@suse.de> References: <20250822093440.53941-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-5.30 / 50.00]; REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; SUSPICIOUS_RECIPS(1.50)[]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_TWELVE(0.00)[24]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; FROM_HAS_DN(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TAGGED_RCPT(0.00)[dt,netdev]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid,suse.de:email,microchip.com:email]; R_RATELIMIT(0.00)[to_ip_from(RL7mwea5a3cdyragbzqhrtit3y)]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCVD_TLS_ALL(0.00)[] X-Spam-Flag: NO X-Spam-Level: X-Spam-Score: -5.30 Content-Type: text/plain; charset="utf-8" From: Dave Stevenson The Raspberry Pi RP1 chip has the Cadence GEM ethernet controller, so add a compatible string for it. Signed-off-by: Dave Stevenson Signed-off-by: Stanimir Varbanov Reviewed-by: Andrew Lunn Acked-by: Conor Dooley Reviewed-by: Claudiu Beznea Reviewed-by: Nicolas Ferre --- Documentation/devicetree/bindings/net/cdns,macb.yaml | 1 + 1 file changed, 1 insertion(+) diff --git a/Documentation/devicetree/bindings/net/cdns,macb.yaml b/Documen= tation/devicetree/bindings/net/cdns,macb.yaml index 559d0f733e7e..0591da97d434 100644 --- a/Documentation/devicetree/bindings/net/cdns,macb.yaml +++ b/Documentation/devicetree/bindings/net/cdns,macb.yaml @@ -54,6 +54,7 @@ properties: - cdns,np4-macb # NP4 SoC devices - microchip,sama7g5-emac # Microchip SAMA7G5 ethernet interfa= ce - microchip,sama7g5-gem # Microchip SAMA7G5 gigabit ethernet= interface + - raspberrypi,rp1-gem # Raspberry Pi RP1 gigabit ethernet = interface - sifive,fu540-c000-gem # SiFive FU540-C000 SoC - cdns,emac # Generic - cdns,gem # Generic --=20 2.47.0 From nobody Fri Oct 3 23:02:04 2025 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C3F772F068A for ; 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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Andrea della Porta , Nicolas Ferre , Claudiu Beznea , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov , Andrew Lunn Subject: [PATCH v2 3/5] net: cadence: macb: Add support for Raspberry Pi RP1 ethernet controller Date: Fri, 22 Aug 2025 12:34:38 +0300 Message-ID: <20250822093440.53941-4-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250822093440.53941-1-svarbanov@suse.de> References: <20250822093440.53941-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-5.30 / 50.00]; REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; SUSPICIOUS_RECIPS(1.50)[]; MID_CONTAINS_FROM(1.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RCPT_COUNT_TWELVE(0.00)[23]; MIME_TRACE(0.00)[0:+]; TO_DN_SOME(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; FUZZY_RATELIMITED(0.00)[rspamd.com]; FROM_HAS_DN(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TAGGED_RCPT(0.00)[dt,netdev]; DBL_BLOCKED_OPENRESOLVER(0.00)[imap1.dmz-prg2.suse.org:helo,suse.de:mid,suse.de:email]; R_RATELIMIT(0.00)[to_ip_from(RL7mwea5a3cdyragbzqhrtit3y)]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCVD_TLS_ALL(0.00)[] X-Spam-Flag: NO X-Spam-Level: X-Spam-Score: -5.30 Content-Type: text/plain; charset="utf-8" From: Dave Stevenson The RP1 chip has the Cadence GEM block, but wants the tx_clock to always run at 125MHz, in the same way as sama7g5. Add the relevant configuration. Signed-off-by: Dave Stevenson Signed-off-by: Stanimir Varbanov Reviewed-by: Andrew Lunn Acked-by: Nicolas Ferre Reviewed-by: Claudiu Beznea --- drivers/net/ethernet/cadence/macb_main.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/etherne= t/cadence/macb_main.c index 36717e7e5811..260fdac46f4b 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -5135,6 +5135,17 @@ static const struct macb_config versal_config =3D { .usrio =3D &macb_default_usrio, }; =20 +static const struct macb_config raspberrypi_rp1_config =3D { + .caps =3D MACB_CAPS_GIGABIT_MODE_AVAILABLE | MACB_CAPS_CLK_HW_CHG | + MACB_CAPS_JUMBO | + MACB_CAPS_GEM_HAS_PTP, + .dma_burst_length =3D 16, + .clk_init =3D macb_clk_init, + .init =3D macb_init, + .usrio =3D &macb_default_usrio, + .jumbo_max_len =3D 10240, +}; + static const struct of_device_id macb_dt_ids[] =3D { { .compatible =3D "cdns,at91sam9260-macb", .data =3D &at91sam9260_config = }, { .compatible =3D "cdns,macb" }, @@ -5155,6 +5166,7 @@ static const struct of_device_id macb_dt_ids[] =3D { { .compatible =3D "microchip,mpfs-macb", .data =3D &mpfs_config }, { .compatible =3D "microchip,sama7g5-gem", .data =3D &sama7g5_gem_config = }, { .compatible =3D "microchip,sama7g5-emac", .data =3D &sama7g5_emac_confi= g }, + { .compatible =3D "raspberrypi,rp1-gem", .data =3D &raspberrypi_rp1_confi= g }, { .compatible =3D "xlnx,zynqmp-gem", .data =3D &zynqmp_config}, { .compatible =3D "xlnx,zynq-gem", .data =3D &zynq_config }, { .compatible =3D "xlnx,versal-gem", .data =3D &versal_config}, --=20 2.47.0 From nobody Fri Oct 3 23:02:04 2025 Received: from smtp-out2.suse.de (smtp-out2.suse.de [195.135.223.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id DA5EC2F619A for ; 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Signed-off-by: Stanimir Varbanov Reviewed-by: Andrew Lunn --- arch/arm64/boot/dts/broadcom/rp1-common.dtsi | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi b/arch/arm64/boot= /dts/broadcom/rp1-common.dtsi index 5002a375eb0b..6bdc304c5f24 100644 --- a/arch/arm64/boot/dts/broadcom/rp1-common.dtsi +++ b/arch/arm64/boot/dts/broadcom/rp1-common.dtsi @@ -39,4 +39,20 @@ rp1_gpio: pinctrl@400d0000 { <1 IRQ_TYPE_LEVEL_HIGH>, <2 IRQ_TYPE_LEVEL_HIGH>; }; + + rp1_eth: ethernet@40100000 { + compatible =3D "raspberrypi,rp1-gem"; + reg =3D <0x00 0x40100000 0x0 0x4000>; + interrupts =3D <6 IRQ_TYPE_LEVEL_HIGH>; + clocks =3D <&rp1_clocks RP1_CLK_SYS>, + <&rp1_clocks RP1_CLK_SYS>, + <&rp1_clocks RP1_CLK_ETH>, + <&rp1_clocks RP1_CLK_ETH_TSU>; + clock-names =3D "pclk", "hclk", "tx_clk", "tsu_clk"; + local-mac-address =3D [00 00 00 00 00 00]; + status =3D "disabled"; + + #address-cells =3D <1>; + #size-cells =3D <0>; + }; }; --=20 2.47.0 From nobody Fri Oct 3 23:02:04 2025 Received: from smtp-out1.suse.de (smtp-out1.suse.de [195.135.223.130]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C49B82F90EB for ; 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Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Florian Fainelli , Andrea della Porta , Nicolas Ferre , Claudiu Beznea , Phil Elwell , Jonathan Bell , Dave Stevenson , Stanimir Varbanov , Andrew Lunn Subject: [PATCH v2 5/5] arm64: dts: broadcom: Enable RP1 ethernet for Raspberry Pi 5 Date: Fri, 22 Aug 2025 12:34:40 +0300 Message-ID: <20250822093440.53941-6-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250822093440.53941-1-svarbanov@suse.de> References: <20250822093440.53941-1-svarbanov@suse.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Spamd-Result: default: False [-5.30 / 50.00]; REPLY(-4.00)[]; BAYES_HAM(-3.00)[100.00%]; SUSPICIOUS_RECIPS(1.50)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; MID_CONTAINS_FROM(1.00)[]; R_MISSING_CHARSET(0.50)[]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; FUZZY_RATELIMITED(0.00)[rspamd.com]; TO_DN_SOME(0.00)[]; MIME_TRACE(0.00)[0:+]; RCPT_COUNT_TWELVE(0.00)[23]; ARC_NA(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TAGGED_RCPT(0.00)[dt,netdev]; DBL_PROHIBIT(0.00)[0.0.0.1:email]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; R_RATELIMIT(0.00)[to_ip_from(RL7mwea5a3cdyragbzqhrtit3y)]; TO_MATCH_ENVRCPT_SOME(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:mid,suse.de:email,imap1.dmz-prg2.suse.org:helo]; RCVD_COUNT_TWO(0.00)[2]; RCVD_TLS_ALL(0.00)[] X-Spam-Flag: NO X-Spam-Level: X-Spam-Score: -5.30 Content-Type: text/plain; charset="utf-8" Enable RP1 ethernet DT node for Raspberry Pi 5. Signed-off-by: Stanimir Varbanov Reviewed-by: Andrew Lunn --- .../boot/dts/broadcom/bcm2712-rpi-5-b.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts b/arch/arm64/= boot/dts/broadcom/bcm2712-rpi-5-b.dts index a70a9b158df3..c70d1cb7f3b6 100644 --- a/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts +++ b/arch/arm64/boot/dts/broadcom/bcm2712-rpi-5-b.dts @@ -23,3 +23,21 @@ &pcie1 { &pcie2 { status =3D "okay"; }; + +&rp1_eth { + status =3D "okay"; + phy-mode =3D "rgmii-id"; + phy-handle =3D <&phy1>; + + mdio { + reg =3D <0x1>; + reset-gpios =3D <&rp1_gpio 32 GPIO_ACTIVE_LOW>; + reset-delay-us =3D <5000>; + #address-cells =3D <1>; + #size-cells =3D <0>; + + phy1: ethernet-phy@1 { + reg =3D <0x1>; + }; + }; +}; --=20 2.47.0