From patchwork Tue Sep 14 21:20:58 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494885 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 009E5C433F5 for ; Tue, 14 Sep 2021 21:27:52 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA33261216 for ; Tue, 14 Sep 2021 21:27:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234251AbhINV3J (ORCPT ); Tue, 14 Sep 2021 17:29:09 -0400 Received: from mx4.wp.pl ([212.77.101.11]:38148 "EHLO mx4.wp.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231273AbhINV3J (ORCPT ); Tue, 14 Sep 2021 17:29:09 -0400 Received: (wp-smtpd smtp.wp.pl 5375 invoked from network); 14 Sep 2021 23:21:07 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1631654468; bh=tAPSHYLfJCfHanCPetkA371bKGzel09qbwJJnHLD89E=; h=From:To:Subject; b=kNSmpwIKQBuL5uP3J961AIFtCQZmZMcaemQD9pjMSkQ4ffQg8b05AUfEA2mJ13shm 0Xrxn/F28GhH22gMt8ThfN2j6Gki/R5voEro/DqU2FAj/tiCnu/zhekH1ytxekdCM7 KQWBs+6ud5Td4zFYJirOP6j5xyvHmzHtfeZsYqIQ= Received: from 46.204.52.243.nat.umts.dynamic.t-mobile.pl (HELO LAPTOP-OLEK.Free) (olek2@wp.pl@[46.204.52.243]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 14 Sep 2021 23:21:07 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 1/8] MIPS: lantiq: dma: add small delay after reset Date: Tue, 14 Sep 2021 23:20:58 +0200 Message-Id: <20210914212105.76186-1-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 MIME-Version: 1.0 X-WP-MailID: 9c083a352a31c4ae3946ffbe1e95c549 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [cXMk] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Reading the DMA registers immediately after the reset causes Data Bus Error. Adding a small delay fixes this issue. Signed-off-by: Aleksander Jan Bajkowski --- arch/mips/lantiq/xway/dma.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c index 63dccb2ed08b..2784715933d1 100644 --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include @@ -222,6 +223,8 @@ ltq_dma_init(struct platform_device *pdev) clk_enable(clk); ltq_dma_w32_mask(0, DMA_RESET, LTQ_DMA_CTRL); + usleep_range(1, 10); + /* disable all interrupts */ ltq_dma_w32(0, LTQ_DMA_IRNEN); From patchwork Tue Sep 14 21:20:59 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494855 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id F3ACBC433FE for ; Tue, 14 Sep 2021 21:21:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id DC09A610D1 for ; Tue, 14 Sep 2021 21:21:43 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234522AbhINVWf (ORCPT ); Tue, 14 Sep 2021 17:22:35 -0400 Received: from mx4.wp.pl ([212.77.101.11]:33511 "EHLO mx4.wp.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234298AbhINVWd (ORCPT ); Tue, 14 Sep 2021 17:22:33 -0400 Received: (wp-smtpd smtp.wp.pl 7702 invoked from network); 14 Sep 2021 23:21:11 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1631654471; bh=cOehKLdr21JWg0458JhnAiOM+tCkh7a5QPtIpRgyjos=; h=From:To:Subject; b=rUiAoVVESuKS8ujsMQWFrDCX24U7oLsDJyGjwnKWrY9G/vfPUi7933fsYApm2Au/Y JxdtZhdZHGjnxLRzNRiPUIqYkyZeDAsr98g8vNJvTTaUTaiC7gTMcxSC0C+QpGFGTV pqesPPE19RtKcs7xrQ1mj2QMdlJVKYCTeXIDJJvw= Received: from 46.204.52.243.nat.umts.dynamic.t-mobile.pl (HELO LAPTOP-OLEK.Free) (olek2@wp.pl@[46.204.52.243]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 14 Sep 2021 23:21:11 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 2/8] MIPS: lantiq: dma: reset correct number of channel Date: Tue, 14 Sep 2021 23:20:59 +0200 Message-Id: <20210914212105.76186-2-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: da6b6b20d853f9e8e7420051a3627358 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [8UOk] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Different SoCs have a different number of channels, e.g .: * amazon-se has 10 channels, * danube+ar9 have 20 channels, * vr9 has 28 channels, * ar10 has 24 channels. We can read the ID register and, depending on the reported number of channels, reset the appropriate number of channels. Signed-off-by: Aleksander Jan Bajkowski --- arch/mips/lantiq/xway/dma.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c index 2784715933d1..364ab39eb8a4 100644 --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -31,6 +31,7 @@ #define LTQ_DMA_PCTRL 0x44 #define LTQ_DMA_IRNEN 0xf4 +#define DMA_ID_CHNR GENMASK(26, 20) /* channel number */ #define DMA_DESCPT BIT(3) /* descriptor complete irq */ #define DMA_TX BIT(8) /* TX channel direction */ #define DMA_CHAN_ON BIT(0) /* channel on / off bit */ @@ -41,7 +42,6 @@ #define DMA_POLL BIT(31) /* turn on channel polling */ #define DMA_CLK_DIV4 BIT(6) /* polling clock divider */ #define DMA_2W_BURST BIT(1) /* 2 word burst length */ -#define DMA_MAX_CHANNEL 20 /* the soc has 20 channels */ #define DMA_ETOP_ENDIANNESS (0xf << 8) /* endianness swap etop channels */ #define DMA_WEIGHT (BIT(17) | BIT(16)) /* default channel wheight */ @@ -207,7 +207,7 @@ ltq_dma_init(struct platform_device *pdev) { struct clk *clk; struct resource *res; - unsigned id; + unsigned int id, nchannels; int i; res = platform_get_resource(pdev, IORESOURCE_MEM, 0); @@ -229,17 +229,18 @@ ltq_dma_init(struct platform_device *pdev) ltq_dma_w32(0, LTQ_DMA_IRNEN); /* reset/configure each channel */ - for (i = 0; i < DMA_MAX_CHANNEL; i++) { + id = ltq_dma_r32(LTQ_DMA_ID); + nchannels = ((id & DMA_ID_CHNR) >> 20); + for (i = 0; i < nchannels; i++) { ltq_dma_w32(i, LTQ_DMA_CS); ltq_dma_w32(DMA_CHAN_RST, LTQ_DMA_CCTRL); ltq_dma_w32(DMA_POLL | DMA_CLK_DIV4, LTQ_DMA_CPOLL); ltq_dma_w32_mask(DMA_CHAN_ON, 0, LTQ_DMA_CCTRL); } - id = ltq_dma_r32(LTQ_DMA_ID); dev_info(&pdev->dev, "Init done - hw rev: %X, ports: %d, channels: %d\n", - id & 0x1f, (id >> 16) & 0xf, id >> 20); + id & 0x1f, (id >> 16) & 0xf, nchannels); return 0; } From patchwork Tue Sep 14 21:21:00 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494887 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C5B34C433EF for ; Tue, 14 Sep 2021 21:28:00 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A3953604D1 for ; Tue, 14 Sep 2021 21:28:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234969AbhINV3R (ORCPT ); Tue, 14 Sep 2021 17:29:17 -0400 Received: from mx3.wp.pl ([212.77.101.9]:17355 "EHLO mx3.wp.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234781AbhINV3O (ORCPT ); Tue, 14 Sep 2021 17:29:14 -0400 X-Greylist: delayed 404 seconds by postgrey-1.27 at vger.kernel.org; Tue, 14 Sep 2021 17:29:14 EDT Received: (wp-smtpd smtp.wp.pl 9876 invoked from network); 14 Sep 2021 23:21:15 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1631654475; bh=W/NPuoEczw/1+slCOS8Gu5B0QOgyM1rf9FWm8bZsl6Q=; h=From:To:Subject; b=r5vvkhpL++H3Pe/B8r48RDJ0oMI31s8xK2Ikj9ljq7arIoLwF4jYpQEf57mNKQEc2 q8Qeo7wx3CVdOTiKijJduDxW7dgbnSQIpKG3bdp/qzuMPMaboshw+aGWKmyI3EHCNQ fAgXpAB8QhSyVWncvvInxKtPQ0mkhwGKMRWiXtKU= Received: from 46.204.52.243.nat.umts.dynamic.t-mobile.pl (HELO LAPTOP-OLEK.Free) (olek2@wp.pl@[46.204.52.243]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 14 Sep 2021 23:21:15 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 3/8] MIPS: lantiq: dma: fix burst length for DEU Date: Tue, 14 Sep 2021 23:21:00 +0200 Message-Id: <20210914212105.76186-3-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: 6de83637f0ab21c13dc811727efd7217 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [cYNU] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The current definition of 2W burst length is invalid. This patch fixes it. Current downstream DEU driver doesn't use DMA. An incorrect burst length value doesn't cause any errors. This patch also adds other burst length values. Fixes: dfec1a827d2b ("MIPS: Lantiq: Add DMA support") Signed-off-by: Aleksander Jan Bajkowski --- arch/mips/lantiq/xway/dma.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c index 364ab39eb8a4..53fcc672a294 100644 --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -41,7 +41,11 @@ #define DMA_IRQ_ACK 0x7e /* IRQ status register */ #define DMA_POLL BIT(31) /* turn on channel polling */ #define DMA_CLK_DIV4 BIT(6) /* polling clock divider */ -#define DMA_2W_BURST BIT(1) /* 2 word burst length */ +#define DMA_PCTRL_2W_BURST 0x1 /* 2 word burst length */ +#define DMA_PCTRL_4W_BURST 0x2 /* 4 word burst length */ +#define DMA_PCTRL_8W_BURST 0x3 /* 8 word burst length */ +#define DMA_TX_BURST_SHIFT 4 /* tx burst shift */ +#define DMA_RX_BURST_SHIFT 2 /* rx burst shift */ #define DMA_ETOP_ENDIANNESS (0xf << 8) /* endianness swap etop channels */ #define DMA_WEIGHT (BIT(17) | BIT(16)) /* default channel wheight */ @@ -192,7 +196,8 @@ ltq_dma_init_port(int p) break; case DMA_PORT_DEU: - ltq_dma_w32((DMA_2W_BURST << 4) | (DMA_2W_BURST << 2), + ltq_dma_w32((DMA_PCTRL_2W_BURST << DMA_TX_BURST_SHIFT) | + (DMA_PCTRL_2W_BURST << DMA_RX_BURST_SHIFT), LTQ_DMA_PCTRL); break; From patchwork Tue Sep 14 21:21:01 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494857 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 5EB44C433F5 for ; Tue, 14 Sep 2021 21:21:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 476376124F for ; Tue, 14 Sep 2021 21:21:45 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234987AbhINVXB (ORCPT ); Tue, 14 Sep 2021 17:23:01 -0400 Received: from mx4.wp.pl ([212.77.101.11]:24808 "EHLO mx4.wp.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234649AbhINVWg (ORCPT ); Tue, 14 Sep 2021 17:22:36 -0400 Received: (wp-smtpd smtp.wp.pl 11120 invoked from network); 14 Sep 2021 23:21:16 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1631654476; bh=q8mLgiPtxya/Sg5rNVuOO44cl/hVhzExZ2McrLq7SX8=; h=From:To:Subject; b=wH0KQc+yPpNRAlK5WCoks1wOdIJrlMKiuXL0jWEqQtzc9Kc+0rasKyNNwRfD05CLs S5S+AK8+H2yKM82XfqhRJfHtefYInuxq/6sqgWNAu7/eCROs5vVC2LGcBZRUHMnOI4 tHyZOe2whr6PgunVURYs7GPbtCcBIghs+SyTJtWo= Received: from 46.204.52.243.nat.umts.dynamic.t-mobile.pl (HELO LAPTOP-OLEK.Free) (olek2@wp.pl@[46.204.52.243]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 14 Sep 2021 23:21:16 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 4/8] MIPS: lantiq: dma: make the burst length configurable by the drivers Date: Tue, 14 Sep 2021 23:21:01 +0200 Message-Id: <20210914212105.76186-4-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: 174ec4fde9de90ceed564e8e2d47f074 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [sUNh] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Make the burst length configurable by the drivers. Signed-off-by: Aleksander Jan Bajkowski Acked-by: Hauke Mehrtens --- .../include/asm/mach-lantiq/xway/xway_dma.h | 2 +- arch/mips/lantiq/xway/dma.c | 38 ++++++++++++++++--- 2 files changed, 34 insertions(+), 6 deletions(-) diff --git a/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h b/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h index 8218a1356bd8..31ca9151b539 100644 --- a/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h +++ b/arch/mips/include/asm/mach-lantiq/xway/xway_dma.h @@ -45,6 +45,6 @@ extern void ltq_dma_close(struct ltq_dma_channel *ch); extern void ltq_dma_alloc_tx(struct ltq_dma_channel *ch); extern void ltq_dma_alloc_rx(struct ltq_dma_channel *ch); extern void ltq_dma_free(struct ltq_dma_channel *ch); -extern void ltq_dma_init_port(int p); +extern void ltq_dma_init_port(int p, int tx_burst, int rx_burst); #endif diff --git a/arch/mips/lantiq/xway/dma.c b/arch/mips/lantiq/xway/dma.c index 53fcc672a294..f8eedeb15f18 100644 --- a/arch/mips/lantiq/xway/dma.c +++ b/arch/mips/lantiq/xway/dma.c @@ -182,7 +182,7 @@ ltq_dma_free(struct ltq_dma_channel *ch) EXPORT_SYMBOL_GPL(ltq_dma_free); void -ltq_dma_init_port(int p) +ltq_dma_init_port(int p, int tx_burst, int rx_burst) { ltq_dma_w32(p, LTQ_DMA_PS); switch (p) { @@ -191,16 +191,44 @@ ltq_dma_init_port(int p) * Tell the DMA engine to swap the endianness of data frames and * drop packets if the channel arbitration fails. */ - ltq_dma_w32_mask(0, DMA_ETOP_ENDIANNESS | DMA_PDEN, + ltq_dma_w32_mask(0, (DMA_ETOP_ENDIANNESS | DMA_PDEN), LTQ_DMA_PCTRL); break; - case DMA_PORT_DEU: - ltq_dma_w32((DMA_PCTRL_2W_BURST << DMA_TX_BURST_SHIFT) | - (DMA_PCTRL_2W_BURST << DMA_RX_BURST_SHIFT), + default: + break; + } + + switch (rx_burst) { + case 8: + ltq_dma_w32_mask(0x0c, (DMA_PCTRL_8W_BURST << DMA_RX_BURST_SHIFT), LTQ_DMA_PCTRL); break; + case 4: + ltq_dma_w32_mask(0x0c, (DMA_PCTRL_4W_BURST << DMA_RX_BURST_SHIFT), + LTQ_DMA_PCTRL); + break; + case 2: + ltq_dma_w32_mask(0x0c, (DMA_PCTRL_2W_BURST << DMA_RX_BURST_SHIFT), + LTQ_DMA_PCTRL); + break; + default: + break; + } + switch (tx_burst) { + case 8: + ltq_dma_w32_mask(0x30, (DMA_PCTRL_8W_BURST << DMA_TX_BURST_SHIFT), + LTQ_DMA_PCTRL); + break; + case 4: + ltq_dma_w32_mask(0x30, (DMA_PCTRL_4W_BURST << DMA_TX_BURST_SHIFT), + LTQ_DMA_PCTRL); + break; + case 2: + ltq_dma_w32_mask(0x30, (DMA_PCTRL_2W_BURST << DMA_TX_BURST_SHIFT), + LTQ_DMA_PCTRL); + break; default: break; } From patchwork Tue Sep 14 21:21:02 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494851 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3FFE7C433EF for ; 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14 Sep 2021 23:21:18 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 5/8] net: lantiq: configure the burst length in ethernet drivers Date: Tue, 14 Sep 2021 23:21:02 +0200 Message-Id: <20210914212105.76186-5-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: 1980189a75ac07b6a4cb5cbbadb14b87 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [cROR] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Configure the burst length in Ethernet drivers. This improves Ethernet performance by 58%. According to the vendor BSP, 8W burst length is supported by ar9 and newer SoCs. The NAT benchmark results on xRX200 (Down/Up): * 2W: 330 Mb/s * 4W: 432 Mb/s 372 Mb/s * 8W: 520 Mb/s 389 Mb/s Tested on xRX200 and xRX330. Signed-off-by: Aleksander Jan Bajkowski --- drivers/net/ethernet/lantiq_etop.c | 21 ++++++++++++++++++--- drivers/net/ethernet/lantiq_xrx200.c | 21 ++++++++++++++++++--- 2 files changed, 36 insertions(+), 6 deletions(-) diff --git a/drivers/net/ethernet/lantiq_etop.c b/drivers/net/ethernet/lantiq_etop.c index 62f8c5212182..2258e3f19161 100644 --- a/drivers/net/ethernet/lantiq_etop.c +++ b/drivers/net/ethernet/lantiq_etop.c @@ -96,6 +96,9 @@ struct ltq_etop_priv { struct ltq_etop_chan ch[MAX_DMA_CHAN]; int tx_free[MAX_DMA_CHAN >> 1]; + int tx_burst_len; + int rx_burst_len; + spinlock_t lock; }; @@ -259,7 +262,7 @@ ltq_etop_hw_init(struct net_device *dev) /* enable crc generation */ ltq_etop_w32(PPE32_CGEN, LQ_PPE32_ENET_MAC_CFG); - ltq_dma_init_port(DMA_PORT_ETOP); + ltq_dma_init_port(DMA_PORT_ETOP, priv->tx_burst_len, rx_burst_len); for (i = 0; i < MAX_DMA_CHAN; i++) { int irq = LTQ_DMA_CH0_INT + i; @@ -472,8 +475,8 @@ ltq_etop_tx(struct sk_buff *skb, struct net_device *dev) return NETDEV_TX_BUSY; } - /* dma needs to start on a 16 byte aligned address */ - byte_offset = CPHYSADDR(skb->data) % 16; + /* dma needs to start on a burst length value aligned address */ + byte_offset = CPHYSADDR(skb->data) % (priv->tx_burst_len * 4); ch->skb[ch->dma.desc] = skb; netif_trans_update(dev); @@ -667,6 +670,18 @@ ltq_etop_probe(struct platform_device *pdev) spin_lock_init(&priv->lock); SET_NETDEV_DEV(dev, &pdev->dev); + err = device_property_read_u32(&pdev->dev, "lantiq,tx-burst-length", &priv->tx_burst_len); + if (err < 0) { + dev_err(&pdev->dev, "unable to read tx-burst-length property\n"); + return err; + } + + err = device_property_read_u32(&pdev->dev, "lantiq,rx-burst-length", &priv->rx_burst_len); + if (err < 0) { + dev_err(&pdev->dev, "unable to read rx-burst-length property\n"); + return err; + } + for (i = 0; i < MAX_DMA_CHAN; i++) { if (IS_TX(i)) netif_napi_add(dev, &priv->ch[i].napi, diff --git a/drivers/net/ethernet/lantiq_xrx200.c b/drivers/net/ethernet/lantiq_xrx200.c index fb78f17d734f..5d96248ce83b 100644 --- a/drivers/net/ethernet/lantiq_xrx200.c +++ b/drivers/net/ethernet/lantiq_xrx200.c @@ -71,6 +71,9 @@ struct xrx200_priv { struct net_device *net_dev; struct device *dev; + int tx_burst_len; + int rx_burst_len; + __iomem void *pmac_reg; }; @@ -316,8 +319,8 @@ static netdev_tx_t xrx200_start_xmit(struct sk_buff *skb, if (unlikely(dma_mapping_error(priv->dev, mapping))) goto err_drop; - /* dma needs to start on a 16 byte aligned address */ - byte_offset = mapping % 16; + /* dma needs to start on a burst length value aligned address */ + byte_offset = mapping % (priv->tx_burst_len * 4); desc->addr = mapping - byte_offset; /* Make sure the address is written before we give it to HW */ @@ -369,7 +372,7 @@ static int xrx200_dma_init(struct xrx200_priv *priv) int ret = 0; int i; - ltq_dma_init_port(DMA_PORT_ETOP); + ltq_dma_init_port(DMA_PORT_ETOP, priv->tx_burst_len, rx_burst_len); ch_rx->dma.nr = XRX200_DMA_RX; ch_rx->dma.dev = priv->dev; @@ -478,6 +481,18 @@ static int xrx200_probe(struct platform_device *pdev) if (err) eth_hw_addr_random(net_dev); + err = device_property_read_u32(dev, "lantiq,tx-burst-length", &priv->tx_burst_len); + if (err < 0) { + dev_err(dev, "unable to read tx-burst-length property\n"); + return err; + } + + err = device_property_read_u32(dev, "lantiq,rx-burst-length", &priv->rx_burst_len); + if (err < 0) { + dev_err(dev, "unable to read rx-burst-length property\n"); + return err; + } + /* bring up the dma engine and IP core */ err = xrx200_dma_init(priv); if (err) From patchwork Tue Sep 14 21:21:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494889 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 06EFFC433EF for ; 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14 Sep 2021 23:21:20 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 6/8] dt-bindings: net: lantiq-xrx200-net: convert to the json-schema Date: Tue, 14 Sep 2021 23:21:03 +0200 Message-Id: <20210914212105.76186-6-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: f8db21619301958f4b0c02e7b1612c2c X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [wcMh] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Convert the Lantiq PMAC Device Tree binding documentation to json-schema. Signed-off-by: Aleksander Jan Bajkowski --- .../bindings/net/lantiq,xrx200-net.txt | 21 ------- .../bindings/net/lantiq,xrx200-net.yaml | 59 +++++++++++++++++++ 2 files changed, 59 insertions(+), 21 deletions(-) delete mode 100644 Documentation/devicetree/bindings/net/lantiq,xrx200-net.txt create mode 100644 Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml diff --git a/Documentation/devicetree/bindings/net/lantiq,xrx200-net.txt b/Documentation/devicetree/bindings/net/lantiq,xrx200-net.txt deleted file mode 100644 index 5ff5e68bbbb6..000000000000 --- a/Documentation/devicetree/bindings/net/lantiq,xrx200-net.txt +++ /dev/null @@ -1,21 +0,0 @@ -Lantiq xRX200 GSWIP PMAC Ethernet driver -================================== - -Required properties: - -- compatible : "lantiq,xrx200-net" for the PMAC of the embedded - : GSWIP in the xXR200 -- reg : memory range of the PMAC core inside of the GSWIP core -- interrupts : TX and RX DMA interrupts. Use interrupt-names "tx" for - : the TX interrupt and "rx" for the RX interrupt. - -Example: - -ethernet@e10b308 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "lantiq,xrx200-net"; - reg = <0xe10b308 0xcf8>; - interrupts = <73>, <72>; - interrupt-names = "tx", "rx"; -}; diff --git a/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml b/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml new file mode 100644 index 000000000000..7bc074a42369 --- /dev/null +++ b/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml @@ -0,0 +1,59 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/lantiq,xrx200-net.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lantiq xRX200 GSWIP PMAC Ethernet driver + +maintainers: + - Hauke Mehrtens + +properties: + $nodename: + pattern: "^ethernet@[0-9a-f]+$" + + compatible: + const: lantiq,xrx200-net + + reg: + maxItems: 1 + + interrupts: + items: + - description: TX interrupt + - description: RX interrupt + + interrupt-names: + items: + - const: tx + - const: rx + + '#address-cells': + const: 1 + + '#size-cells': + const: 0 + +required: + - compatible + - reg + - interrupt-parent + - interrupts + - interrupt-names + - "#address-cells" + - "#size-cells" + +additionalProperties: false + +examples: + - | + ethernet@e10b308 { + #address-cells = <1>; + #size-cells = <0>; + compatible = "lantiq,xrx200-net"; + reg = <0xe10b308 0xcf8>; + interrupt-parent = <&icu0>; + interrupts = <73>, <72>; + interrupt-names = "tx", "rx"; + }; From patchwork Tue Sep 14 21:21:04 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494891 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D61DBC433FE for ; Tue, 14 Sep 2021 21:28:04 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id C05786121D for ; Tue, 14 Sep 2021 21:28:04 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234687AbhINV3W (ORCPT ); Tue, 14 Sep 2021 17:29:22 -0400 Received: from mx4.wp.pl ([212.77.101.11]:46448 "EHLO mx4.wp.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234497AbhINV3V (ORCPT ); Tue, 14 Sep 2021 17:29:21 -0400 Received: (wp-smtpd smtp.wp.pl 14557 invoked from network); 14 Sep 2021 23:21:22 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1631654482; bh=JtFVFUNwiTKJSIDVg4gd3K3bXMV5gRNQIbwA0HclFeI=; h=From:To:Subject; b=Dnj3uTR5/fc5LSf3AHSqcj/OzIMJo62wIOZaFh8zrL9YMdRCIiyhQaB4F0x7BSBjG OXa+c3yiwjbupTtMw+86MntSB8vDyeHcOhTW0RXp4eoWPyJboSTvI2WDiQOOwyNHlE 3FTScXe2FWg1gjI2I+2D81Y7hMaWzV5WeFYF9ijA= Received: from 46.204.52.243.nat.umts.dynamic.t-mobile.pl (HELO LAPTOP-OLEK.Free) (olek2@wp.pl@[46.204.52.243]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 14 Sep 2021 23:21:22 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 7/8] dt-bindings: net: lantiq,etop-xway: Document Lantiq Xway ETOP bindings Date: Tue, 14 Sep 2021 23:21:04 +0200 Message-Id: <20210914212105.76186-7-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: ddb62316da53fdab6eaf4a0ee8f80a50 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [cfOR] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Document the Lantiq Xway SoC series External Bus Unit (ETOP) bindings. Signed-off-by: Aleksander Jan Bajkowski --- .../bindings/net/lantiq,etop-xway.yaml | 53 +++++++++++++++++++ 1 file changed, 53 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml diff --git a/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml b/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml new file mode 100644 index 000000000000..4412abfb4987 --- /dev/null +++ b/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml @@ -0,0 +1,53 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/net/lantiq,etop-xway.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Lantiq Xway ETOP Ethernet driver + +maintainers: + - John Crispin + +properties: + $nodename: + pattern: "^ethernet@[0-9a-f]+$" + + compatible: + const: lantiq,etop-xway + + reg: + maxItems: 1 + + interrupts: + items: + - description: TX interrupt + - description: RX interrupt + + interrupt-names: + items: + - const: tx + - const: rx + + phy-mode: true + +required: + - compatible + - reg + - interrupt-parent + - interrupts + - interrupt-names + - phy-mode + +additionalProperties: false + +examples: + - | + ethernet@e180000 { + compatible = "lantiq,etop-xway"; + reg = <0xe180000 0x40000>; + interrupt-parent = <&icu0>; + interrupts = <73>, <78>; + interrupt-names = "tx", "rx"; + phy-mode = "rmii"; + }; From patchwork Tue Sep 14 21:21:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Aleksander Jan Bajkowski X-Patchwork-Id: 12494853 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-15.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 2588EC433FE for ; Tue, 14 Sep 2021 21:21:37 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 11D8B60F58 for ; Tue, 14 Sep 2021 21:21:37 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235111AbhINVWx (ORCPT ); Tue, 14 Sep 2021 17:22:53 -0400 Received: from mx4.wp.pl ([212.77.101.11]:53968 "EHLO mx4.wp.pl" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235044AbhINVWq (ORCPT ); Tue, 14 Sep 2021 17:22:46 -0400 Received: (wp-smtpd smtp.wp.pl 15615 invoked from network); 14 Sep 2021 23:21:24 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=wp.pl; s=1024a; t=1631654484; bh=NI1s3fyUzKFnJoED0B09JtxVWEJcupkI0XVp/SgGAfw=; h=From:To:Subject; b=cCrJANci5DZlDbkrA82osLhdrQPRxOHO8phkpAMptkt23yfUK3Oh3zYMFw5mUD2fF k3FJgLXCJ9/oDxckIVkzuMLpfIXRp9LnUEL3cE814flVUFyiNSlS21GCqw1ZxBREog dQSIg6x8/vafCqTmRZXILt5JUUqeRW7pqOsV25Vs= Received: from 46.204.52.243.nat.umts.dynamic.t-mobile.pl (HELO LAPTOP-OLEK.Free) (olek2@wp.pl@[46.204.52.243]) (envelope-sender ) by smtp.wp.pl (WP-SMTPD) with ECDHE-RSA-AES256-GCM-SHA384 encrypted SMTP for ; 14 Sep 2021 23:21:24 +0200 From: Aleksander Jan Bajkowski To: john@phrozen.org, tsbogend@alpha.franken.de, olek2@wp.pl, maz@kernel.org, ralf@linux-mips.org, ralph.hempel@lantiq.com, davem@davemloft.net, kuba@kernel.org, robh+dt@kernel.org, hauke@hauke-m.de, dev@kresin.me, arnd@arndb.de, jgg@ziepe.ca, netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH net-next 8/8] dt-bindings: net: lantiq: Add the burst length properties Date: Tue, 14 Sep 2021 23:21:05 +0200 Message-Id: <20210914212105.76186-8-olek2@wp.pl> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210914212105.76186-1-olek2@wp.pl> References: <20210914212105.76186-1-olek2@wp.pl> MIME-Version: 1.0 X-WP-MailID: 3f16cb31ff38d9575689798d722fbd40 X-WP-AV: skaner antywirusowy Poczty Wirtualnej Polski X-WP-SPAM: NO 0000000 [4ZN0] Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org The new added properties are used for configuring burst length. Signed-off-by: Aleksander Jan Bajkowski --- .../bindings/net/lantiq,etop-xway.yaml | 16 ++++++++++++++++ .../bindings/net/lantiq,xrx200-net.yaml | 16 ++++++++++++++++ 2 files changed, 32 insertions(+) diff --git a/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml b/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml index 4412abfb4987..437502c5ca96 100644 --- a/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml +++ b/Documentation/devicetree/bindings/net/lantiq,etop-xway.yaml @@ -29,6 +29,18 @@ properties: - const: tx - const: rx + lantiq,tx-burst-length: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + TX programmable burst length. + enum: [2, 4, 8] + + lantiq,rx-burst-length: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + RX programmable burst length. + enum: [2, 4, 8] + phy-mode: true required: @@ -37,6 +49,8 @@ required: - interrupt-parent - interrupts - interrupt-names + - lantiq,tx-burst-length + - lantiq,rx-burst-length - phy-mode additionalProperties: false @@ -49,5 +63,7 @@ examples: interrupt-parent = <&icu0>; interrupts = <73>, <78>; interrupt-names = "tx", "rx"; + lantiq,tx-burst-length = <8>; + lantiq,rx-burst-length = <8>; phy-mode = "rmii"; }; diff --git a/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml b/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml index 7bc074a42369..16d831f22063 100644 --- a/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml +++ b/Documentation/devicetree/bindings/net/lantiq,xrx200-net.yaml @@ -29,6 +29,18 @@ properties: - const: tx - const: rx + lantiq,tx-burst-length: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + TX programmable burst length. + enum: [2, 4, 8] + + lantiq,rx-burst-length: + $ref: /schemas/types.yaml#/definitions/uint32 + description: | + RX programmable burst length. + enum: [2, 4, 8] + '#address-cells': const: 1 @@ -41,6 +53,8 @@ required: - interrupt-parent - interrupts - interrupt-names + - lantiq,tx-burst-length + - lantiq,rx-burst-length - "#address-cells" - "#size-cells" @@ -56,4 +70,6 @@ examples: interrupt-parent = <&icu0>; interrupts = <73>, <72>; interrupt-names = "tx", "rx"; + lantiq,tx-burst-length = <8>; + lantiq,rx-burst-length = <8>; };