From nobody Thu Feb 12 21:46:56 2026 Received: from mta-64-227.siemens.flowmailer.net (mta-64-227.siemens.flowmailer.net [185.136.64.227]) (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 B9829194A7A for ; Fri, 7 Jun 2024 13:14:18 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.64.227 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717766060; cv=none; b=AXwN46yamb/X2SXk0AjnE5aM+XLcWYyLSM7P8Eh2UUIMgbnzRv0j7EjpMdLskL5f7K1GGwtG98VkaVyDD7E+keALWJG3dyL2+UIEJT83N+Pa5BauPGNceJ+XL2Vuyjd7AopFEDpAjlTDF1Dfydp8kA8msmXTKBSyh8VxGBQzuk0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717766060; c=relaxed/simple; bh=gVkjhihYssjxx3HmUUIcdEn5ObHN127myBwzSS6vJW0=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=BrUAD+xc/pCI0c7DfflnxaImVmupAoERSnRqW9cZVF93Ffo1uUPYizF8lb2V7i6lk3NHrZRwW88Q7QG52RhybHvPSeWH9filp8GC641cmZplLRpr6r3sLXL/yxE5A6I7ZUcKwX7uWx4CUBR8tAuMP1AKa6104Cko7THVdZ2Xrz0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com; dkim=pass (1024-bit key) header.d=siemens.com header.i=diogo.ivo@siemens.com header.b=nYmeSFk7; arc=none smtp.client-ip=185.136.64.227 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=siemens.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=rts-flowmailer.siemens.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=siemens.com header.i=diogo.ivo@siemens.com header.b="nYmeSFk7" Received: by mta-64-227.siemens.flowmailer.net with ESMTPSA id 202406071314119738299f05800c3fab for ; Fri, 07 Jun 2024 15:14:11 +0200 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; s=fm2; d=siemens.com; i=diogo.ivo@siemens.com; h=Date:From:Subject:To:Message-ID:MIME-Version:Content-Type:Content-Transfer-Encoding:Cc:References:In-Reply-To; bh=x4YRkE+XFm1D29pl4Ld17TEKG1sVow5yeZQG9PSUP5I=; b=nYmeSFk74uBHWoVjis9ZQ9m+FJ9ij+amjNoT5PiUDD19q+62u5h477q3LMBZEY35Y4szWD ZZ1ceJVATUF1+IlD/agl8j+BVQT71CKyZFsU5ts4olczCHLXSh4BhjzWp6BBIv+e7K0YLEyp 3FZ5vgtAqCBDgIU33fY3yPszvUC2I=; From: Diogo Ivo Date: Fri, 07 Jun 2024 14:02:42 +0100 Subject: [PATCH net-next v3 1/4] net: ti: icssg-prueth: Enable PTP timestamping support for SR1.0 devices Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20240607-iep-v3-1-4824224105bc@siemens.com> References: <20240607-iep-v3-0-4824224105bc@siemens.com> In-Reply-To: <20240607-iep-v3-0-4824224105bc@siemens.com> To: MD Danish Anwar , Roger Quadros , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Richard Cochran , Nishanth Menon , Vignesh Raghavendra , Tero Kristo , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jan Kiszka , Jacob Keller , Simon Horman Cc: linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Diogo Ivo , Wojciech Drewek X-Developer-Signature: v=1; a=ed25519-sha256; t=1717766048; l=3143; i=diogo.ivo@siemens.com; s=20240529; h=from:subject:message-id; bh=gVkjhihYssjxx3HmUUIcdEn5ObHN127myBwzSS6vJW0=; b=/6z6UNJ8Q+JAQ6UI+lCH/iEhQ/GrLgj+QGFY9A2csJuBtmOkHvOKse56pxv2KMMjJJjIJUK9J MF01S7dd/yjDI6b2d/bGrge50GTXcT0N6AK54YGXc68BgCqoa4utP88 X-Developer-Key: i=diogo.ivo@siemens.com; a=ed25519; pk=BRGXhMh1q5KDlZ9y2B8SodFFY8FGupal+NMtJPwRpUQ= X-Flowmailer-Platform: Siemens Feedback-ID: 519:519-1320519:519-21489:flowmailer Enable PTP support for AM65x SR1.0 devices by registering with the IEP infrastructure in order to expose a PTP clock to userspace. Reviewed-by: Jacob Keller Reviewed-by: Wojciech Drewek Signed-off-by: Diogo Ivo --- drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c | 51 ++++++++++++++++++++= +++- 1 file changed, 50 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c b/drivers/net= /ethernet/ti/icssg/icssg_prueth_sr1.c index 7b3304bbd7fc..fa98bdb11ece 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c @@ -1011,16 +1011,44 @@ static int prueth_probe(struct platform_device *pde= v) dev_dbg(dev, "sram: pa %llx va %p size %zx\n", prueth->msmcram.pa, prueth->msmcram.va, prueth->msmcram.size); =20 + prueth->iep0 =3D icss_iep_get_idx(np, 0); + if (IS_ERR(prueth->iep0)) { + ret =3D dev_err_probe(dev, PTR_ERR(prueth->iep0), + "iep0 get failed\n"); + goto free_pool; + } + + prueth->iep1 =3D icss_iep_get_idx(np, 1); + if (IS_ERR(prueth->iep1)) { + ret =3D dev_err_probe(dev, PTR_ERR(prueth->iep1), + "iep1 get failed\n"); + goto put_iep0; + } + + ret =3D icss_iep_init(prueth->iep0, NULL, NULL, 0); + if (ret) { + dev_err_probe(dev, ret, "failed to init iep0\n"); + goto put_iep; + } + + ret =3D icss_iep_init(prueth->iep1, NULL, NULL, 0); + if (ret) { + dev_err_probe(dev, ret, "failed to init iep1\n"); + goto exit_iep0; + } + if (eth0_node) { ret =3D prueth_netdev_init(prueth, eth0_node); if (ret) { dev_err_probe(dev, ret, "netdev init %s failed\n", eth0_node->name); - goto free_pool; + goto exit_iep; } =20 if (of_find_property(eth0_node, "ti,half-duplex-capable", NULL)) prueth->emac[PRUETH_MAC0]->half_duplex =3D 1; + + prueth->emac[PRUETH_MAC0]->iep =3D prueth->iep0; } =20 if (eth1_node) { @@ -1033,6 +1061,8 @@ static int prueth_probe(struct platform_device *pdev) =20 if (of_find_property(eth1_node, "ti,half-duplex-capable", NULL)) prueth->emac[PRUETH_MAC1]->half_duplex =3D 1; + + prueth->emac[PRUETH_MAC1]->iep =3D prueth->iep1; } =20 /* register the network devices */ @@ -1091,6 +1121,19 @@ static int prueth_probe(struct platform_device *pdev) prueth_netdev_exit(prueth, eth_node); } =20 +exit_iep: + icss_iep_exit(prueth->iep1); +exit_iep0: + icss_iep_exit(prueth->iep0); + +put_iep: + icss_iep_put(prueth->iep1); + +put_iep0: + icss_iep_put(prueth->iep0); + prueth->iep0 =3D NULL; + prueth->iep1 =3D NULL; + free_pool: gen_pool_free(prueth->sram_pool, (unsigned long)prueth->msmcram.va, msmc_ram_size); @@ -1138,6 +1181,12 @@ static void prueth_remove(struct platform_device *pd= ev) prueth_netdev_exit(prueth, eth_node); } =20 + icss_iep_exit(prueth->iep1); + icss_iep_exit(prueth->iep0); + + icss_iep_put(prueth->iep1); + icss_iep_put(prueth->iep0); + gen_pool_free(prueth->sram_pool, (unsigned long)prueth->msmcram.va, MSMC_RAM_SIZE_SR1); --=20 2.45.2