Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751218Ab3CISOA (ORCPT ); Sat, 9 Mar 2013 13:14:00 -0500 Received: from hqemgate03.nvidia.com ([216.228.121.140]:5559 "EHLO hqemgate03.nvidia.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751319Ab3CISNL (ORCPT ); Sat, 9 Mar 2013 13:13:11 -0500 X-PGP-Universal: processed; by hqnvupgp08.nvidia.com on Sat, 09 Mar 2013 10:06:53 -0800 From: Laxman Dewangan To: CC: , , , , Laxman Dewangan Subject: [PATCH V2 3/5] ARM: DT: tegra114:add aliases and DMA requestor for serial controller Date: Sat, 9 Mar 2013 23:41:16 +0530 Message-ID: <1362852678-13421-4-git-send-email-ldewangan@nvidia.com> X-Mailer: git-send-email 1.7.1.1 In-Reply-To: <1362852678-13421-1-git-send-email-ldewangan@nvidia.com> References: <1362852678-13421-1-git-send-email-ldewangan@nvidia.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 3096 Lines: 98 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,tegra114-uart", "nvidia,tegra20-uart" and APB DMA based driver will get enabled with compatible "nvidia,tegra114-hsuart", "nvidia,tegra30-hsuart". Signed-off-by: Laxman Dewangan --- Changes from V1: - Remove UARTB car id correction. Make the compatible with tegra114 and tegra30 for hsuart and tegra20 for simple uart driver. arch/arm/boot/dts/tegra114.dtsi | 27 +++++++++++++++++++++++---- 1 files changed, 23 insertions(+), 4 deletions(-) diff --git a/arch/arm/boot/dts/tegra114.dtsi b/arch/arm/boot/dts/tegra114.dtsi index 14afbc8..300082d 100644 --- a/arch/arm/boot/dts/tegra114.dtsi +++ b/arch/arm/boot/dts/tegra114.dtsi @@ -4,6 +4,13 @@ compatible = "nvidia,tegra114"; interrupt-parent = <&gic>; + aliases { + serial0 = &uarta; + serial1 = &uartb; + serial2 = &uartc; + serial3 = &uartd; + }; + gic: interrupt-controller { compatible = "arm,cortex-a15-gic"; #interrupt-cells = <3>; @@ -99,38 +106,50 @@ 0x70003000 0x40c>; /* 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,tegra114-uart", "nvidia,tegra20-uart" and to enable + * the APB DMA based serial driver, the comptible is + * "nvidia,tegra114-hsuart", "nvidia,tegra30-hsuart". + */ + uarta: serial@70006000 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + nvidia,dma-request-selector = <&apbdma 8>; status = "disabled"; clocks = <&tegra_car 6>; }; - serial@70006040 { + uartb: serial@70006040 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + nvidia,dma-request-selector = <&apbdma 9>; status = "disabled"; clocks = <&tegra_car 192>; }; - serial@70006200 { + uartc: serial@70006200 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + nvidia,dma-request-selector = <&apbdma 10>; status = "disabled"; clocks = <&tegra_car 55>; }; - serial@70006300 { + uartd: serial@70006300 { compatible = "nvidia,tegra114-uart", "nvidia,tegra20-uart"; reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + nvidia,dma-request-selector = <&apbdma 19>; status = "disabled"; clocks = <&tegra_car 65>; }; -- 1.7.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/