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[v2,01/16] arm64: dts: Reserve memory regions for hi6220

Message ID 1459589383-16914-2-git-send-email-guodong.xu@linaro.org (mailing list archive)
State New, archived
Headers show

Commit Message

Guodong Xu April 2, 2016, 9:29 a.m. UTC 
From: Leo Yan <leo.yan@linaro.org>

On Hi6220, below memory regions in DDR have specific purpose:

  0x05e0,0000 - 0x05ef,ffff: For MCU firmware using at runtime;
  0x06df,f000 - 0x06df,ffff: For mailbox message data;
  0x0740,f000 - 0x0740,ffff: For MCU firmware's section;
  0x3e00,0000 - 0x3fff,ffff: For OP-TEE.

This patch reserves these memory regions in DT.

Signed-off-by: Leo Yan <leo.yan@linaro.org>
Signed-off-by: Wei Xu <xuwei5@hisilicon.com>
---
 arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts | 16 ++++++++++++----
 1 file changed, 12 insertions(+), 4 deletions(-)
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Patch

diff --git a/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts b/arch/arm64/boot/dts/hisilicon/hi6220-hikey.dts
index 8185251..17bd793 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"
 
 / {
@@ -27,9 +24,20 @@ 
 		stdout-path = "serial3:115200n8";
 	};
 
+	/*
+	 * Reserve below regions from memory node:
+	 *
+	 *  0x05e0,0000 - 0x05ef,ffff: MCU firmware runtime using
+	 *  0x06df,f000 - 0x06df,ffff: Mailbox message data
+	 *  0x0740,f000 - 0x0740,ffff: MCU firmware section
+	 *  0x3e00,0000 - 0x3fff,ffff: OP-TEE
+	 */
 	memory@0 {
 		device_type = "memory";
-		reg = <0x0 0x0 0x0 0x40000000>;
+		reg = <0x00000000 0x00000000 0x00000000 0x05e00000>,
+		      <0x00000000 0x05f00000 0x00000000 0x00eff000>,
+		      <0x00000000 0x06e00000 0x00000000 0x0060f000>,
+		      <0x00000000 0x07410000 0x00000000 0x36bf0000>;
 	};
 };