From patchwork Wed Dec 19 06:31:11 2012 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Laxman Dewangan X-Patchwork-Id: 1894721 Return-Path: X-Original-To: patchwork-linux-arm@patchwork.kernel.org Delivered-To: patchwork-process-083081@patchwork2.kernel.org Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) by patchwork2.kernel.org (Postfix) with ESMTP id 01E4EDF230 for ; Wed, 19 Dec 2012 06:36:14 +0000 (UTC) Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.76 #1 (Red Hat Linux)) id 1TlDBo-0005Dt-4S; Wed, 19 Dec 2012 06:31:36 +0000 Received: from hqemgate04.nvidia.com ([216.228.121.35]) by merlin.infradead.org with esmtps (Exim 4.76 #1 (Red Hat Linux)) id 1TlDBj-0005DR-Vz for linux-arm-kernel@lists.infradead.org; Wed, 19 Dec 2012 06:31:33 +0000 Received: from hqnvupgp06.nvidia.com (Not Verified[216.228.121.13]) by hqemgate04.nvidia.com id ; Tue, 18 Dec 2012 22:30:58 -0800 Received: from hqemhub01.nvidia.com ([172.17.108.22]) by hqnvupgp06.nvidia.com (PGP Universal service); Tue, 18 Dec 2012 22:29:45 -0800 X-PGP-Universal: processed; by hqnvupgp06.nvidia.com on Tue, 18 Dec 2012 22:29:45 -0800 Received: from hqnvemgw02.nvidia.com (172.16.227.111) by hqemhub01.nvidia.com (172.20.150.30) with Microsoft SMTP Server id 8.3.279.1; Tue, 18 Dec 2012 22:31:17 -0800 Received: from thelma.nvidia.com (Not Verified[172.16.212.77]) by hqnvemgw02.nvidia.com with MailMarshal (v6,7,2,8378) id ; Tue, 18 Dec 2012 22:31:17 -0800 Received: from ldewangan-ubuntu.nvidia.com ([10.19.65.30]) by thelma.nvidia.com (8.13.8+Sun/8.8.8) with ESMTP id qBJ6VB6j010117; Tue, 18 Dec 2012 22:31:12 -0800 (PST) From: Laxman Dewangan To: Subject: [PATCH] ARM: tegra: dts: add aliases and DMA requestor for serial controller Date: Wed, 19 Dec 2012 12:01:11 +0530 Message-ID: <1355898671-3960-1-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 1.7.1.1 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20121219_013132_263710_1D414728 X-CRM114-Status: GOOD ( 13.12 ) X-Spam-Score: -7.6 (-------) X-Spam-Report: SpamAssassin version 3.3.2 on merlin.infradead.org summary: Content analysis details: (-7.6 points) pts rule name description ---- ---------------------- -------------------------------------------------- -5.0 RCVD_IN_DNSWL_HI RBL: Sender listed at http://www.dnswl.org/, high trust [216.228.121.35 listed in list.dnswl.org] -0.0 SPF_HELO_PASS SPF: HELO matches SPF record -0.0 SPF_PASS SPF: sender matches SPF record -0.7 RP_MATCHES_RCVD Envelope sender domain matches handover relay domain -1.9 BAYES_00 BODY: Bayes spam probability is 0 to 1% [score: 0.0000] Cc: linux-tegra@vger.kernel.org, Laxman Dewangan , linux@arm.linux.org.uk, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-arm-kernel-bounces@lists.infradead.org Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org Add APB DMA requestor and serial aliases for serial controller. There will be two serial driver i.e. 8250 based simple serial driver and APB DMA based serial driver for higher baudrate and performace. The simple serial driver get enabled with compatible nvidia,tegra20-uart and APB DMA based driver will get enabled with compatible nvidia,tegra20-hsuart. Signed-off-by: Laxman Dewangan --- arch/arm/boot/dts/tegra20.dtsi | 30 +++++++++++++++++++++++++----- arch/arm/boot/dts/tegra30.dtsi | 31 ++++++++++++++++++++++++++----- 2 files changed, 51 insertions(+), 10 deletions(-) diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index b8effa1..fe35c72 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -4,6 +4,14 @@ compatible = "nvidia,tegra20"; interrupt-parent = <&intc>; + aliases { + serial0 = &uarta; + serial1 = &uartb; + serial2 = &uartc; + serial3 = &uartd; + serial4 = &uarte; + }; + host1x { compatible = "nvidia,tegra20-host1x", "simple-bus"; reg = <0x50000000 0x00024000>; @@ -194,43 +202,55 @@ status = "disabled"; }; - serial@70006000 { + /* + * There are two serial driver i.e. 8250 based simple serial + * driver and APB DMA based serial driver for higher baudrate + * and performace. To enable the 8250 based driver, the compatible + * is "nvidia,tegra20-uart" and to enable the APB DMA based serial + * driver, the comptible is "nvidia,tegra20-hsuart". + */ + uarta: serial@70006000 { compatible = "nvidia,tegra20-uart"; reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + nvidia,dma-request-selector = <&apbdma 8>; status = "disabled"; }; - serial@70006040 { + uartb: serial@70006040 { compatible = "nvidia,tegra20-uart"; reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + nvidia,dma-request-selector = <&apbdma 9>; status = "disabled"; }; - serial@70006200 { + uartc: serial@70006200 { compatible = "nvidia,tegra20-uart"; reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + nvidia,dma-request-selector = <&apbdma 10>; status = "disabled"; }; - serial@70006300 { + uartd: serial@70006300 { compatible = "nvidia,tegra20-uart"; reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + nvidia,dma-request-selector = <&apbdma 19>; status = "disabled"; }; - serial@70006400 { + uarte: serial@70006400 { compatible = "nvidia,tegra20-uart"; reg = <0x70006400 0x100>; reg-shift = <2>; interrupts = <0 91 0x04>; + nvidia,dma-request-selector = <&apbdma 20>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 529fdb8..80a0edf 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -4,6 +4,14 @@ compatible = "nvidia,tegra30"; interrupt-parent = <&intc>; + aliases { + serial0 = &uarta; + serial1 = &uartb; + serial2 = &uartc; + serial3 = &uartd; + serial4 = &uarte; + }; + host1x { compatible = "nvidia,tegra30-host1x", "simple-bus"; reg = <0x50000000 0x00024000>; @@ -190,43 +198,56 @@ 0x70003000 0x3e4>; /* Mux registers */ }; - serial@70006000 { + /* + * There are two serial driver i.e. 8250 based simple serial + * driver and APB DMA based serial driver for higher baudrate + * and performace. To enable the 8250 based driver, the compatible + * is "nvidia,tegra30-uart", "nvidia,tegra20-uart" and to enable + * the APB DMA based serial driver, the comptible is + * "nvidia,tegra30-hsuart", "nvidia,tegra20-hsuart". + */ + uarta: serial@70006000 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + nvidia,dma-request-selector = <&apbdma 8>; status = "disabled"; }; - serial@70006040 { + uartb: serial@70006040 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + nvidia,dma-request-selector = <&apbdma 9>; status = "disabled"; }; - serial@70006200 { + uartc: serial@70006200 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + nvidia,dma-request-selector = <&apbdma 10>; status = "disabled"; }; - serial@70006300 { + uartd: serial@70006300 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + nvidia,dma-request-selector = <&apbdma 19>; status = "disabled"; }; - serial@70006400 { + uarte: serial@70006400 { compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart"; reg = <0x70006400 0x100>; reg-shift = <2>; interrupts = <0 91 0x04>; + nvidia,dma-request-selector = <&apbdma 20>; status = "disabled"; };