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Fri, 15 Aug 2025 13:59:20 +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 mNYDEDg9n2jMfAAAD6G6ig (envelope-from ); Fri, 15 Aug 2025 13:59:20 +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 Subject: [PATCH 1/5] net: cadence: macb: Set upper 32bits of DMA ring buffer Date: Fri, 15 Aug 2025 16:59:07 +0300 Message-ID: <20250815135911.1383385-2-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250815135911.1383385-1-svarbanov@suse.de> References: <20250815135911.1383385-1-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 [-1.30 / 50.00]; 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)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:mid,suse.de:email]; RCPT_COUNT_TWELVE(0.00)[22]; MIME_TRACE(0.00)[0:+]; FUZZY_RATELIMITED(0.00)[rspamd.com]; TAGGED_RCPT(0.00)[dt,netdev]; FROM_HAS_DN(0.00)[]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_COUNT_TWO(0.00)[2]; TO_DN_SOME(0.00)[]; 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: -1.30 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. Signed-off-by: Stanimir Varbanov Reviewed-by: Andrew Lunn --- drivers/net/ethernet/cadence/macb_main.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/etherne= t/cadence/macb_main.c index ce95fad8cedd..41c0cbb5262e 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -1635,6 +1635,11 @@ static int macb_rx(struct macb_queue *queue, struct = napi_struct *napi, =20 macb_init_rx_ring(queue); queue_writel(queue, RBQP, queue->rx_ring_dma); +#ifdef CONFIG_ARCH_DMA_ADDR_T_64BIT + if (bp->hw_dma_cap & HW_DMA_CAP_64B) + macb_writel(bp, RBQPH, + upper_32_bits(queue->rx_ring_dma)); +#endif =20 macb_writel(bp, NCR, ctrl | MACB_BIT(RE)); =20 --=20 2.47.0 From nobody Sat Oct 4 12:46:56 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 40E63303C82 for ; 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Fri, 15 Aug 2025 13:59:21 +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 aEu5FTk9n2jMfAAAD6G6ig (envelope-from ); Fri, 15 Aug 2025 13:59:21 +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 Subject: [PATCH 2/5] dt-bindings: net: cdns,macb: Add compatible for Raspberry Pi RP1 Date: Fri, 15 Aug 2025 16:59:08 +0300 Message-ID: <20250815135911.1383385-3-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250815135911.1383385-1-svarbanov@suse.de> References: <20250815135911.1383385-1-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-Spam-Level: X-Spam-Flag: NO X-Rspamd-Queue-Id: 6609F211A9 X-Rspamd-Action: no action X-Rspamd-Server: rspamd1.dmz-prg2.suse.org X-Spamd-Result: default: False [-1.51 / 50.00]; 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)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_RATELIMITED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[22]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TAGGED_RCPT(0.00)[dt,netdev]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCVD_COUNT_TWO(0.00)[2]; R_RATELIMIT(0.00)[to_ip_from(RLw7mkaud87zuqqztkur5718rm)]; RCVD_TLS_ALL(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; TO_DN_SOME(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:dkim,suse.de:mid,suse.de:email] X-Spam-Score: -1.51 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 Acked-by: Conor Dooley Reviewed-by: Andrew Lunn --- 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 Sat Oct 4 12:46:56 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 1504C306D2B 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 Subject: [PATCH 3/5] net: cadence: macb: Add support for Raspberry Pi RP1 ethernet controller Date: Fri, 15 Aug 2025 16:59:09 +0300 Message-ID: <20250815135911.1383385-4-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20250815135911.1383385-1-svarbanov@suse.de> References: <20250815135911.1383385-1-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 [-1.51 / 50.00]; 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)[]; R_DKIM_ALLOW(-0.20)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; NEURAL_HAM_SHORT(-0.20)[-1.000]; MIME_GOOD(-0.10)[text/plain]; MX_GOOD(-0.01)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; FUZZY_RATELIMITED(0.00)[rspamd.com]; MIME_TRACE(0.00)[0:+]; ARC_NA(0.00)[]; RCPT_COUNT_TWELVE(0.00)[22]; TO_MATCH_ENVRCPT_ALL(0.00)[]; FROM_HAS_DN(0.00)[]; FROM_EQ_ENVFROM(0.00)[]; RCVD_VIA_SMTP_AUTH(0.00)[]; TAGGED_RCPT(0.00)[dt,netdev]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCVD_COUNT_TWO(0.00)[2]; R_RATELIMIT(0.00)[to_ip_from(RLw7mkaud87zuqqztkur5718rm)]; RCVD_TLS_ALL(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; TO_DN_SOME(0.00)[]; DBL_BLOCKED_OPENRESOLVER(0.00)[suse.de:mid,suse.de:dkim,suse.de:email] X-Spam-Flag: NO X-Spam-Level: X-Rspamd-Queue-Id: 765B1211CA X-Rspamd-Server: rspamd2.dmz-prg2.suse.org X-Rspamd-Action: no action X-Spam-Score: -1.51 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 --- 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 41c0cbb5262e..d3d5fcd42c30 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -5136,6 +5136,17 @@ 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" }, @@ -5156,6 +5167,7 @@ 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 Sat Oct 4 12:46:56 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 D69A9306D57 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 Sat Oct 4 12:46:56 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 287093074B7 for ; 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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