path: root/bcm2836-Improve-VCHIQ-cache-line-size-handling.patch

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From: Phil Elwell <phil@raspberrypi.org>
To: Rob Herring <robh+dt@kernel.org>, Stefan Wahren <stefan.wahren@i2se.com>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
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Subject: [PATCH v3 2/4] dt-bindings: soc: Document "brcm,bcm2836-vchiq"
Date: Mon, 17 Sep 2018 09:22:22 +0100
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"brcm,bcm2836-vchiq" should be used on BCM2836 and BCM2837 to ensure
correct operation.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
Reviewed-by: Rob Herring <robh@kernel.org>
---
 Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
index 8dd7b3a..f331316 100644
--- a/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
+++ b/Documentation/devicetree/bindings/soc/bcm/brcm,bcm2835-vchiq.txt
@@ -2,7 +2,8 @@ Broadcom VCHIQ firmware services
 
 Required properties:
 
-- compatible:	Should be "brcm,bcm2835-vchiq"
+- compatible:	Should be "brcm,bcm2835-vchiq" on BCM2835, otherwise
+		"brcm,bcm2836-vchiq".
 - reg:		Physical base address and length of the doorbell register pair
 - interrupts:	The interrupt number
 		  See bindings/interrupt-controller/brcm,bcm2835-armctrl-ic.txt

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From: Phil Elwell <phil@raspberrypi.org>
To: Rob Herring <robh+dt@kernel.org>, Stefan Wahren <stefan.wahren@i2se.com>,
 Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
 Phil Elwell <phil@raspberrypi.org>, devicetree@vger.kernel.org,
 linux-rpi-kernel@lists.infradead.org,
 Russell King <linux@armlinux.org.uk>, Arnd Bergmann <arnd@arndb.de>,
 linux-arm-kernel@lists.infradead.org,
 bcm-kernel-feedback-list@broadcom.com, devel@driverdev.osuosl.org
Subject: [PATCH v3 3/4] ARM: dts: bcm283x: Correct vchiq compatible string
Date: Mon, 17 Sep 2018 09:22:23 +0100
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To allow VCHIQ to determine the correct cache line size, use the new
"brcm,bcm2836-vchiq" compatible string on BCM2836 and BCM2837.

Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2835-rpi.dtsi         | 2 +-
 arch/arm/boot/dts/bcm2836-rpi-2-b.dts      | 2 +-
 arch/arm/boot/dts/bcm2836-rpi.dtsi         | 6 ++++++
 arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts | 2 +-
 arch/arm/boot/dts/bcm2837-rpi-3-b.dts      | 2 +-
 arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi     | 2 +-
 6 files changed, 11 insertions(+), 5 deletions(-)
 create mode 100644 arch/arm/boot/dts/bcm2836-rpi.dtsi

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index cb2d6d7..215d8cc 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -30,7 +30,7 @@
 			#power-domain-cells = <1>;
 		};
 
-		mailbox@7e00b840 {
+		vchiq: mailbox@7e00b840 {
 			compatible = "brcm,bcm2835-vchiq";
 			reg = <0x7e00b840 0xf>;
 			interrupts = <0 2>;
diff --git a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
index 2fef70a..ac4408b 100644
--- a/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
+++ b/arch/arm/boot/dts/bcm2836-rpi-2-b.dts
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2836.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-smsc9514.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
 
diff --git a/arch/arm/boot/dts/bcm2836-rpi.dtsi b/arch/arm/boot/dts/bcm2836-rpi.dtsi
new file mode 100644
index 0000000..c4c858b
--- /dev/null
+++ b/arch/arm/boot/dts/bcm2836-rpi.dtsi
@@ -0,0 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "bcm2835-rpi.dtsi"
+
+&vchiq {
+	compatible = "brcm,bcm2836-vchiq", "brcm,bcm2835-vchiq";
+};
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
index 4adb85e..eca36e3 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2837.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-lan7515.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
 
diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
index c318bcb..a0ba0f6 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
+++ b/arch/arm/boot/dts/bcm2837-rpi-3-b.dts
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2837.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2836-rpi.dtsi"
 #include "bcm283x-rpi-smsc9514.dtsi"
 #include "bcm283x-rpi-usb-host.dtsi"
 
diff --git a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
index 7b7ab6a..4a89a18 100644
--- a/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
+++ b/arch/arm/boot/dts/bcm2837-rpi-cm3.dtsi
@@ -1,7 +1,7 @@
 // SPDX-License-Identifier: GPL-2.0
 /dts-v1/;
 #include "bcm2837.dtsi"
-#include "bcm2835-rpi.dtsi"
+#include "bcm2836-rpi.dtsi"
 
 / {
 	memory {

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From: Phil Elwell <phil@raspberrypi.org>
To: Rob Herring <robh+dt@kernel.org>, Stefan Wahren <stefan.wahren@i2se.com>,
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Subject: [PATCH v3 4/4] ARM: dts: bcm283x: Correct mailbox register sizes
Date: Mon, 17 Sep 2018 09:22:24 +0100
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The size field in a Device Tree "reg" property is encoded in bytes, not
words.

Fixes: 614fa22119d6 ("ARM: dts: bcm2835: Add VCHIQ node to the Raspberry Pi boards. (v3)")
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Acked-by: Stefan Wahren <stefan.wahren@i2se.com>
---
 arch/arm/boot/dts/bcm2835-rpi.dtsi | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi
index 215d8cc..29f970f 100644
--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -32,7 +32,7 @@
 
 		vchiq: mailbox@7e00b840 {
 			compatible = "brcm,bcm2835-vchiq";
-			reg = <0x7e00b840 0xf>;
+			reg = <0x7e00b840 0x3c>;
 			interrupts = <0 2>;
 		};
 	};