From: allen yan yanwei@marvell.com
commit c737abc193d16e62e23e2fb585b8b7398ab380d8 upstream.
Armada-37xx UART0 registers are 0x200 bytes wide. Right next to them are the UART1 registers that should not be declared in this node.
Update the example in DT bindings document accordingly.
Signed-off-by: allen yan yanwei@marvell.com Signed-off-by: Miquel Raynal miquel.raynal@free-electrons.com Signed-off-by: Gregory CLEMENT gregory.clement@free-electrons.com Signed-off-by: Amit Pundir amit.pundir@linaro.org --- Cherry-picked from lede/openwrt tree https://git.lede-project.org/?p=source.git. Build tested for ARCH=arm64 + defconfig
Cleanly apply on 4.9.y as well but since lede stopped supporting v4.9.y, I'm not sure if this patch is tested on v4.9.y at all.
Documentation/devicetree/bindings/serial/mvebu-uart.txt | 2 +- arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/Documentation/devicetree/bindings/serial/mvebu-uart.txt b/Documentation/devicetree/bindings/serial/mvebu-uart.txt index 6087defd9f93..d37fabe17bd1 100644 --- a/Documentation/devicetree/bindings/serial/mvebu-uart.txt +++ b/Documentation/devicetree/bindings/serial/mvebu-uart.txt @@ -8,6 +8,6 @@ Required properties: Example: serial@12000 { compatible = "marvell,armada-3700-uart"; - reg = <0x12000 0x400>; + reg = <0x12000 0x200>; interrupts = <43>; }; diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi index 8c0cf7efac65..b554cdaf5e53 100644 --- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi +++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi @@ -134,7 +134,7 @@
uart0: serial@12000 { compatible = "marvell,armada-3700-uart"; - reg = <0x12000 0x400>; + reg = <0x12000 0x200>; interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; status = "disabled"; };