Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752404AbbHCBO2 (ORCPT ); Sun, 2 Aug 2015 21:14:28 -0400 Received: from mail-pd0-f172.google.com ([209.85.192.172]:33965 "EHLO mail-pd0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752313AbbHCBOX (ORCPT ); Sun, 2 Aug 2015 21:14:23 -0400 From: Leo Yan To: Rob Herring , Pawel Moll , Mark Rutland , Ian Campbell , Kumar Gala , Catalin Marinas , Will Deacon , Jassi Brar , Wei Xu , Bintian Wang , Haojian Zhuang , devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Guodong Xu , Jian Zhang , Zhenwei Wang , Haoju Mo , Dan Zhao , kongfei@hisilicon.com, Guangyue Zeng Cc: Leo Yan Subject: [RFC PATCH 3/3] arm64: dts: add Hi6220 mailbox node Date: Mon, 3 Aug 2015 09:13:10 +0800 Message-Id: <1438564390-28111-4-git-send-email-leo.yan@linaro.org> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1438564390-28111-1-git-send-email-leo.yan@linaro.org> References: <1438564390-28111-1-git-send-email-leo.yan@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2263 Lines: 77 On Hi6220, below memory regions in DDR have specific purpose: - 0x05e0,0000 - 0x05ef,ffff: For MCU firmware using at runtime; - 0x0740,f000 - 0x0740,ffff: For MCU firmware's section; - 0x06df,f000 - 0x06df,ffff: For mailbox message data. This patch reserves these memory regions and add device node for mailbox in dts. Signed-off-by: Leo Yan --- arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 20 +++++++++++++++++--- arch/arm64/boot/dts/hisilicon/hi6220.dtsi | 8 ++++++++ 2 files changed, 25 insertions(+), 3 deletions(-) diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts index e36a539..1715f9d 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts +++ b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts @@ -7,9 +7,6 @@ /dts-v1/; -/*Reserved 1MB memory for MCU*/ -/memreserve/ 0x05e00000 0x00100000; - #include "hi6220.dtsi" / { @@ -28,4 +25,21 @@ device_type = "memory"; reg = <0x0 0x0 0x0 0x40000000>; }; + + reserved-memory { + #address-cells = <2>; + #size-cells = <2>; + ranges; + + mcu-buf@05e00000 { + no-map; + reg = <0x0 0x0740f000 0x0 0x00001000>, /* MCU firmware section */ + <0x0 0x05e00000 0x0 0x00100000>; /* MCU firmware buffer */ + }; + + mbox-buf@06dff000 { + no-map; + reg = <0x0 0x06dff000 0x0 0x00001000>; /* Mailbox message buf */ + }; + }; }; diff --git a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi index 3f03380..b42a9b7 100644 --- a/arch/arm64/boot/dts/hisilicon/hi6220.dtsi +++ b/arch/arm64/boot/dts/hisilicon/hi6220.dtsi @@ -167,5 +167,13 @@ clocks = <&ao_ctrl 36>, <&ao_ctrl 36>; clock-names = "uartclk", "apb_pclk"; }; + + mailbox: mailbox { + #mbox-cells = <1>; + compatible = "hisilicon,hi6220-mbox"; + reg = <0x0 0xf7510000 0x0 0x1000>, /* IPC_S */ + <0x0 0x06dff800 0x0 0x0800>; /* Mailbox buffer */ + interrupts = ; + }; }; }; -- 1.9.1 -- 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/