From: leo.yan@linaro.org (Leo Yan)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 3/3] arm64: dts: add Hi6220 mailbox node
Date: Thu, 20 Aug 2015 10:53:59 +0800 [thread overview]
Message-ID: <1440039239-8772-4-git-send-email-leo.yan@linaro.org> (raw)
In-Reply-To: <1440039239-8772-1-git-send-email-leo.yan@linaro.org>
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 <leo.yan@linaro.org>
---
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..d5470d3 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 at 05e00000 {
+ no-map;
+ reg = <0x0 0x05e00000 0x0 0x00100000>, /* MCU firmware buffer */
+ <0x0 0x0740f000 0x0 0x00001000>; /* MCU firmware section */
+ };
+
+ mbox-buf at 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..9ff25bc 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 at f7510000 {
+ #mbox-cells = <1>;
+ compatible = "hisilicon,hi6220-mbox";
+ reg = <0x0 0xf7510000 0x0 0x1000>, /* IPC_S */
+ <0x0 0x06dff800 0x0 0x0800>; /* Mailbox buffer */
+ interrupts = <GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH>;
+ };
};
};
--
1.9.1
next prev parent reply other threads:[~2015-08-20 2:53 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-20 2:53 [PATCH v2 0/3] mailbox: hisilicon: add Hi6220 mailbox driver Leo Yan
2015-08-20 2:53 ` [PATCH v2 1/3] dt-bindings: mailbox: Document " Leo Yan
2015-08-20 2:53 ` [PATCH v2 2/3] mailbox: Hi6220: add " Leo Yan
2015-08-20 5:42 ` YiPing Xu
2015-08-20 13:44 ` Leo Yan
2015-08-20 2:53 ` Leo Yan [this message]
2015-08-24 10:00 ` [PATCH v2 3/3] arm64: dts: add Hi6220 mailbox node Mark Rutland
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