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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 v3] net: cadence: macb: Add support for Raspberry Pi RP1 ethernet controller Date: Tue, 16 Sep 2025 11:10:59 +0300 Message-ID: <20250916081059.3992108-1-svarbanov@suse.de> X-Mailer: git-send-email 2.47.0 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)[]; DKIM_SIGNED(0.00)[suse.de:s=susede2_rsa,suse.de:s=susede2_ed25519]; RCPT_COUNT_TWELVE(0.00)[23]; MIME_TRACE(0.00)[0:+]; FUZZY_RATELIMITED(0.00)[rspamd.com]; ARC_NA(0.00)[]; RBL_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:104:10:150:64:97:from]; RCVD_TLS_ALL(0.00)[]; DKIM_TRACE(0.00)[suse.de:+]; RCVD_COUNT_TWO(0.00)[2]; FROM_EQ_ENVFROM(0.00)[]; FROM_HAS_DN(0.00)[]; TO_DN_SOME(0.00)[]; TO_MATCH_ENVRCPT_SOME(0.00)[]; RECEIVED_SPAMHAUS_BLOCKED_OPENRESOLVER(0.00)[2a07:de40:b281:106:10:150:64:167:received]; DNSWL_BLOCKED(0.00)[2a07:de40:b281:106:10:150:64:167:received]; RCVD_VIA_SMTP_AUTH(0.00)[]; TAGGED_RCPT(0.00)[dt,netdev]; DBL_BLOCKED_OPENRESOLVER(0.00)[microchip.com:email,tuxon.dev:email,imap1.dmz-prg2.suse.org:helo,imap1.dmz-prg2.suse.org:rdns] X-Spam-Flag: NO X-Spam-Level: X-Rspamd-Queue-Id: 9BC99225E1 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 Acked-by: Nicolas Ferre Reviewed-by: Claudiu Beznea --- changes in v3: - Added Reviewed-by and Acked-by tags. - Split the patch from the original series. 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