From patchwork Wed May 29 16:05:10 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 13679173 X-Patchwork-Delegate: kuba@kernel.org Received: from mta-65-225.siemens.flowmailer.net (mta-65-225.siemens.flowmailer.net [185.136.65.225]) (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 AD75B1836FD for ; Wed, 29 May 2024 16:05:43 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.136.65.225 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716998745; cv=none; b=ALf4+0JF2f18jr7vIIBpi2KuKDa7ei2bu6hwzJyMIRi+SXD+fPCrKFfyXryjoLluqqMzo2q2UE6KlkV6oCXFrVMeVYTvUllu9kloKtuyb+1ciciCGVYXWpULThGL1Ndy7um0J7ZKgQ+1v17FOpNI0jyol6LxLey8hF+EftwdPTI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716998745; c=relaxed/simple; bh=3oNbe7+kl949vpSxjYDcQs/lpiG/Vv5Of/GL7kFfQV4=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=KWJ0h8bFszOxCBSfkIeE4zrmG7VcOjV9rC7QzIaV5q2SLrNElS7zJKrNwRb/IL80vBUsQDTFqKd7OChOjVIX6W6BV+LqqtJDCNNsYBLd0ABcUUny02jptHNvkzlsm1AqlTcwXTgeR/l4H9rlgd47lCJ+MchLCmt0nbS26wMlr2o= 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=jYAPhQ+s; arc=none smtp.client-ip=185.136.65.225 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="jYAPhQ+s" Received: by mta-65-225.siemens.flowmailer.net with ESMTPSA id 202405291605340a8599fcbb0bd62077 for ; Wed, 29 May 2024 18:05:35 +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=t0N1v6lGOWmbUT2zPk1pBlnpA8KnITb1ou0m2UPQizo=; b=jYAPhQ+sPK401ZFkELi4ZYu1n6CQmj8eOgGVaGjv+JIi8P2Z3kVAr7ylkgSdejxVQ/o8Yd RyvwOg8ge+rV2/CETuM5SGkDJfhOhOJadRzU/Sq2CGDkoh87zXaN5T/2uXneCKGYebwksX/l 8qtPPfKJ0wYdUup8TPrw5NJ/Q9Nj4=; From: Diogo Ivo Date: Wed, 29 May 2024 17:05:10 +0100 Subject: [PATCH 1/3] net: ti: icssg-prueth: Enable PTP timestamping support for SR1.0 devices Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240529-iep-v1-1-7273c07592d3@siemens.com> References: <20240529-iep-v1-0-7273c07592d3@siemens.com> In-Reply-To: <20240529-iep-v1-0-7273c07592d3@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 Cc: linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Diogo Ivo X-Developer-Signature: v=1; a=ed25519-sha256; t=1716998732; l=3011; i=diogo.ivo@siemens.com; s=20240529; h=from:subject:message-id; bh=3oNbe7+kl949vpSxjYDcQs/lpiG/Vv5Of/GL7kFfQV4=; b=8GNTjGB2viq7HJxCXsyDfzcZ62uwz78d5Ex2SZIOKIvNum45Vl7fAHZKU017hReeDpGJV1/p7 YiKGMWTfgv6DTLFGOTd+HryoVUFc6foZcvKzicEhmWjzF1H+gIuKwF9 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 X-Patchwork-Delegate: kuba@kernel.org Enable PTP support for AM65x SR1.0 devices by registering with the IEP infrastructure in order to expose a PTP clock to userspace. Signed-off-by: Diogo Ivo Reviewed-by: Jacob Keller --- drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c | 49 +++++++++++++++++++++++- 1 file changed, 48 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..01cad01965dc 100644 --- a/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c +++ b/drivers/net/ethernet/ti/icssg/icssg_prueth_sr1.c @@ -1011,16 +1011,42 @@ static int prueth_probe(struct platform_device *pdev) dev_dbg(dev, "sram: pa %llx va %p size %zx\n", prueth->msmcram.pa, prueth->msmcram.va, prueth->msmcram.size); + prueth->iep0 = icss_iep_get_idx(np, 0); + if (IS_ERR(prueth->iep0)) { + ret = dev_err_probe(dev, PTR_ERR(prueth->iep0), "iep0 get failed\n"); + goto free_pool; + } + + prueth->iep1 = icss_iep_get_idx(np, 1); + if (IS_ERR(prueth->iep1)) { + ret = dev_err_probe(dev, PTR_ERR(prueth->iep1), "iep1 get failed\n"); + goto put_iep0; + } + + ret = icss_iep_init(prueth->iep0, NULL, NULL, 0); + if (ret) { + dev_err_probe(dev, ret, "failed to init iep0\n"); + goto put_iep; + } + + ret = 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 = 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; } if (of_find_property(eth0_node, "ti,half-duplex-capable", NULL)) prueth->emac[PRUETH_MAC0]->half_duplex = 1; + + prueth->emac[PRUETH_MAC0]->iep = prueth->iep0; } if (eth1_node) { @@ -1033,6 +1059,8 @@ static int prueth_probe(struct platform_device *pdev) if (of_find_property(eth1_node, "ti,half-duplex-capable", NULL)) prueth->emac[PRUETH_MAC1]->half_duplex = 1; + + prueth->emac[PRUETH_MAC1]->iep = prueth->iep1; } /* register the network devices */ @@ -1091,6 +1119,19 @@ static int prueth_probe(struct platform_device *pdev) prueth_netdev_exit(prueth, eth_node); } +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 = NULL; + prueth->iep1 = NULL; + free_pool: gen_pool_free(prueth->sram_pool, (unsigned long)prueth->msmcram.va, msmc_ram_size); @@ -1138,6 +1179,12 @@ static void prueth_remove(struct platform_device *pdev) prueth_netdev_exit(prueth, eth_node); } + 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); From patchwork Wed May 29 16:05:11 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 13679174 X-Patchwork-Delegate: kuba@kernel.org Received: from mta-64-225.siemens.flowmailer.net (mta-64-225.siemens.flowmailer.net [185.136.64.225]) (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 90EA01836F7 for ; 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arc=none smtp.client-ip=185.136.64.225 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="Ub05n4wz" Received: by mta-64-225.siemens.flowmailer.net with ESMTPSA id 20240529160536973565ae3a16023d7b for ; Wed, 29 May 2024 18:05:36 +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=nwXt6q8QKspJwmhkWLeD3CLZmgPMizmWsw7PtC72yaI=; b=Ub05n4wzAPstphetgUBoyH9OsOW1oxLs8CCqs3WasDCip2xIEI6gd7+vCXobNZFCmuNsDq DeNKGRm1H5sACHL4jgVMPuDmu1UOSW5jtGo89bCGHdURV44B2bYfJDvDoMYAu3K7qkVUiaBj OkjDaDlDcFk0kpT6G00tXTReV62TI=; From: Diogo Ivo Date: Wed, 29 May 2024 17:05:11 +0100 Subject: [PATCH 2/3] net: ti: icss-iep: Enable compare events Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240529-iep-v1-2-7273c07592d3@siemens.com> References: <20240529-iep-v1-0-7273c07592d3@siemens.com> In-Reply-To: <20240529-iep-v1-0-7273c07592d3@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 Cc: linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Diogo Ivo X-Developer-Signature: v=1; a=ed25519-sha256; t=1716998732; l=4374; i=diogo.ivo@siemens.com; s=20240529; h=from:subject:message-id; bh=GBHTWr2BnrN47pHjde4zU2Ymt2L9Uyv/LPS9yMcrrpQ=; b=CBoxiMoLa+EbsUCvAE0tkPjV2/mnvh7/5mbTG4DrmbNhVn/xV6vxoaYZtb8ftR6Rnv9Y5/DSH YaBM0ITea7wAdUJOI0/x2wGTDnkPQFX57+6z3uojexZgE3P+4S+62Cj 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 X-Patchwork-Delegate: kuba@kernel.org The IEP module supports compare events, in which a value is written to a hardware register and when the IEP counter reaches the written value an interrupt is generated. Add handling for this interrupt in order to support PPS events. Signed-off-by: Diogo Ivo Reviewed-by: Jacob Keller --- drivers/net/ethernet/ti/icssg/icss_iep.c | 71 ++++++++++++++++++++++++++++++++ 1 file changed, 71 insertions(+) diff --git a/drivers/net/ethernet/ti/icssg/icss_iep.c b/drivers/net/ethernet/ti/icssg/icss_iep.c index 3025e9c18970..8337508ce8f0 100644 --- a/drivers/net/ethernet/ti/icssg/icss_iep.c +++ b/drivers/net/ethernet/ti/icssg/icss_iep.c @@ -17,6 +17,7 @@ #include #include #include +#include #include "icss_iep.h" @@ -122,6 +123,7 @@ struct icss_iep { int cap_cmp_irq; u64 period; u32 latch_enable; + struct work_struct work; }; /** @@ -571,6 +573,55 @@ static int icss_iep_perout_enable(struct icss_iep *iep, return ret; } +static void icss_iep_cap_cmp_work(struct work_struct *work) +{ + struct icss_iep *iep = container_of(work, struct icss_iep, work); + struct ptp_clock_event pevent; + unsigned int val; + u64 ns, ns_next; + + spin_lock(&iep->irq_lock); + + ns = readl(iep->base + iep->plat_data->reg_offs[ICSS_IEP_CMP1_REG0]); + if (iep->plat_data->flags & ICSS_IEP_64BIT_COUNTER_SUPPORT) { + val = readl(iep->base + iep->plat_data->reg_offs[ICSS_IEP_CMP1_REG1]); + ns |= (u64)val << 32; + } + /* set next event */ + ns_next = ns + iep->period; + writel(lower_32_bits(ns_next), + iep->base + iep->plat_data->reg_offs[ICSS_IEP_CMP1_REG0]); + if (iep->plat_data->flags & ICSS_IEP_64BIT_COUNTER_SUPPORT) + writel(upper_32_bits(ns_next), + iep->base + iep->plat_data->reg_offs[ICSS_IEP_CMP1_REG1]); + + pevent.pps_times.ts_real = ns_to_timespec64(ns); + pevent.type = PTP_CLOCK_PPSUSR; + pevent.index = 0; + ptp_clock_event(iep->ptp_clock, &pevent); + dev_dbg(iep->dev, "IEP:pps ts: %llu next:%llu:\n", ns, ns_next); + + spin_unlock(&iep->irq_lock); +} + +static irqreturn_t icss_iep_cap_cmp_irq(int irq, void *dev_id) +{ + struct icss_iep *iep = (struct icss_iep *)dev_id; + unsigned int val; + + val = readl(iep->base + iep->plat_data->reg_offs[ICSS_IEP_CMP_STAT_REG]); + /* The driver only enables CMP1 */ + if (val & BIT(1)) { + /* Clear the event */ + writel(BIT(1), iep->base + iep->plat_data->reg_offs[ICSS_IEP_CMP_STAT_REG]); + if (iep->pps_enabled || iep->perout_enabled) + schedule_work(&iep->work); + return IRQ_HANDLED; + } + + return IRQ_NONE; +} + static int icss_iep_pps_enable(struct icss_iep *iep, int on) { struct ptp_clock_request rq; @@ -602,6 +653,8 @@ static int icss_iep_pps_enable(struct icss_iep *iep, int on) ret = icss_iep_perout_enable_hw(iep, &rq.perout, on); } else { ret = icss_iep_perout_enable_hw(iep, &rq.perout, on); + if (iep->cap_cmp_irq) + cancel_work_sync(&iep->work); } if (!ret) @@ -777,6 +830,8 @@ int icss_iep_init(struct icss_iep *iep, const struct icss_iep_clockops *clkops, if (iep->ops && iep->ops->perout_enable) { iep->ptp_info.n_per_out = 1; iep->ptp_info.pps = 1; + } else if (iep->cap_cmp_irq) { + iep->ptp_info.pps = 1; } if (iep->ops && iep->ops->extts_enable) @@ -817,6 +872,7 @@ static int icss_iep_probe(struct platform_device *pdev) struct device *dev = &pdev->dev; struct icss_iep *iep; struct clk *iep_clk; + int ret; iep = devm_kzalloc(dev, sizeof(*iep), GFP_KERNEL); if (!iep) @@ -827,6 +883,21 @@ static int icss_iep_probe(struct platform_device *pdev) if (IS_ERR(iep->base)) return -ENODEV; + iep->cap_cmp_irq = platform_get_irq_byname_optional(pdev, "iep_cap_cmp"); + if (iep->cap_cmp_irq < 0) { + if (iep->cap_cmp_irq == -EPROBE_DEFER) + return iep->cap_cmp_irq; + iep->cap_cmp_irq = 0; + } else { + ret = devm_request_irq(dev, iep->cap_cmp_irq, + icss_iep_cap_cmp_irq, IRQF_TRIGGER_HIGH, + "iep_cap_cmp", iep); + if (ret) + return dev_err_probe(iep->dev, ret, + "Request irq failed for cap_cmp\n"); + INIT_WORK(&iep->work, icss_iep_cap_cmp_work); + } + iep_clk = devm_clk_get(dev, NULL); if (IS_ERR(iep_clk)) return PTR_ERR(iep_clk); From patchwork Wed May 29 16:05:12 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Diogo Ivo X-Patchwork-Id: 13679175 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 AAC5D1836FE for ; 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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="V4InFzGM" Received: by mta-64-227.siemens.flowmailer.net with ESMTPSA id 202405291605377dedeaa73032ebe4a7 for ; Wed, 29 May 2024 18:05:37 +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=TfT54JdgHXhlK7CXHcRDEC9PIR72E7rEaipmJkiIs44=; b=V4InFzGM6fHhEJITpqcpNZGvhk9K3K7gs7ZRbL5vIuMhrPl1qMqwDPZEkf3s1cSNoAokoE P47WRciE+iHMbzCPxhpwRY169po2/TCQEqBN2lcZnSfJbqzVWPFNuFh42RmnVfh9UIfn1wTt bYtCaEpUx31XTjjZfvRZQRHf4eLgA=; From: Diogo Ivo Date: Wed, 29 May 2024 17:05:12 +0100 Subject: [PATCH 3/3] arm64: dts: ti: iot2050: Add IEP interrupts for SR1.0 devices Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240529-iep-v1-3-7273c07592d3@siemens.com> References: <20240529-iep-v1-0-7273c07592d3@siemens.com> In-Reply-To: <20240529-iep-v1-0-7273c07592d3@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 Cc: linux-arm-kernel@lists.infradead.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, Diogo Ivo X-Developer-Signature: v=1; a=ed25519-sha256; t=1716998732; l=898; i=diogo.ivo@siemens.com; s=20240529; h=from:subject:message-id; bh=g50rqN+Tm9GE6hG8Rzf5OPuU0+TursRCfv71e/S09L4=; b=ez+4KvjIglEVGUOcGVJpiCU75C2K3vojXCXuTE5agPXOB+rX2WZPnCQbyEwHMu3xw/SpOgjYH gC6UVyDC2BTDubP2XHfryyKEg9o11nCbYkvJkFd1fr3Ks3GpVU8XWB2 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 Add the interrupts needed for PTP Hardware Clock support via IEP in SR1.0 devices. Signed-off-by: Diogo Ivo Reviewed-by: Jacob Keller --- arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi index ef7897763ef8..0a29ed172215 100644 --- a/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi +++ b/arch/arm64/boot/dts/ti/k3-am65-iot2050-common-pg1.dtsi @@ -73,3 +73,15 @@ &icssg0_eth { "rx0", "rx1", "rxmgm0", "rxmgm1"; }; + +&icssg0_iep0 { + interrupt-parent = <&icssg0_intc>; + interrupts = <7 7 7>; + interrupt-names = "iep_cap_cmp"; +}; + +&icssg0_iep1 { + interrupt-parent = <&icssg0_intc>; + interrupts = <56 8 8>; + interrupt-names = "iep_cap_cmp"; +};