linux-kernel - [PATCH 4.9 40/72] arm64: dts: NS2: reserve memory for Nitro firmware

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Message-Id: <20171119143534.014213611@linuxfoundation.org>
Date:   Sun, 19 Nov 2017 15:38:44 +0100
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Jon Mason <jon.mason@...adcom.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Sasha Levin <alexander.levin@...izon.com>
Subject: [PATCH 4.9 40/72] arm64: dts: NS2: reserve memory for Nitro firmware

4.9-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Jon Mason <jon.mason@...adcom.com>


[ Upstream commit 0cc878d678444392ca2a31350f89f489593ef5bb ]

Nitro firmware is loaded into memory by the bootloader at a specific
location.  Set this memory range aside to prevent the kernel from using
it.

Signed-off-by: Jon Mason <jon.mason@...adcom.com>
Signed-off-by: Florian Fainelli <f.fainelli@...il.com>
Signed-off-by: Sasha Levin <alexander.levin@...izon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 arch/arm64/boot/dts/broadcom/ns2.dtsi |    2 ++
 1 file changed, 2 insertions(+)

--- a/arch/arm64/boot/dts/broadcom/ns2.dtsi
+++ b/arch/arm64/boot/dts/broadcom/ns2.dtsi
@@ -30,6 +30,8 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+/memreserve/ 0x81000000 0x00200000;
+
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/clock/bcm-ns2.h>