Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753237AbdG1XTy (ORCPT ); Fri, 28 Jul 2017 19:19:54 -0400 Received: from fllnx210.ext.ti.com ([198.47.19.17]:30059 "EHLO fllnx210.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753137AbdG1XTs (ORCPT ); Fri, 28 Jul 2017 19:19:48 -0400 From: Suman Anna To: Santosh Shilimkar CC: , , , Suman Anna , Sam Nelson , "Andrew F. Davis" Subject: [PATCH 6/6] ARM: dts: keystone-k2e-evm: Add and enable DSP CMA memory pool Date: Fri, 28 Jul 2017 18:19:18 -0500 Message-ID: <20170728231918.16778-7-s-anna@ti.com> X-Mailer: git-send-email 2.13.1 In-Reply-To: <20170728231918.16778-1-s-anna@ti.com> References: <20170728231918.16778-1-s-anna@ti.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: 1533 Lines: 54 From: Sam Nelson A CMA memory pool reserved memory node is added, and is attached to the DSP node through the 'memory-region' property on the K2E EVM board. This area will be used for allocating virtio rings and buffers. This node allows the DSP Memory Protection and Address Extension (MPAX) module to be configured properly for the DSP processor, and matches the values used on the other Keystone 2 boards for software compatibility. The reserved memory node and the user DSP node are also marked okay to enable the DSP on the 66AK2E EVM board. Signed-off-by: Sam Nelson Signed-off-by: Suman Anna --- arch/arm/boot/dts/keystone-k2e-evm.dts | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/arch/arm/boot/dts/keystone-k2e-evm.dts b/arch/arm/boot/dts/keystone-k2e-evm.dts index ae1ebe7ee021..f1f32c54e72f 100644 --- a/arch/arm/boot/dts/keystone-k2e-evm.dts +++ b/arch/arm/boot/dts/keystone-k2e-evm.dts @@ -16,6 +16,19 @@ compatible = "ti,k2e-evm", "ti,k2e", "ti,keystone"; model = "Texas Instruments Keystone 2 Edison EVM"; + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + dsp_common_memory: dsp-common-memory@81f800000 { + compatible = "shared-dma-pool"; + reg = <0x00000008 0x1f800000 0x00000000 0x800000>; + reusable; + status = "okay"; + }; + }; + soc { clocks { @@ -160,3 +173,8 @@ reg = <1>; }; }; + +&dsp0 { + memory-region = <&dsp_common_memory>; + status = "okay"; +}; -- 2.13.1