diff mbox series

MIPS: Loongson64: Add UART node for LS7A PCH

Message ID 1600346341-5158-1-git-send-email-yangtiezhu@loongson.cn (mailing list archive)
State Accepted
Commit 5fa1f7680f2728d62561db6d4a9282c4d21f2324
Headers show
Series MIPS: Loongson64: Add UART node for LS7A PCH | expand

Commit Message

Tiezhu Yang Sept. 17, 2020, 12:39 p.m. UTC 
When I update the latest kernel on the Loongson platform used with
LS7A bridge chip, the serial console has no output, this is because
the machine uses LS7A UART0 instead of CPU UART0, add UART node for
LS7A PCH to enhance the compatibility.

Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 39 +++++++++++++++++++++++++++++++
 1 file changed, 39 insertions(+)

Comments

Thomas Bogendoerfer Sept. 21, 2020, 8:25 p.m. UTC | #1 
On Thu, Sep 17, 2020 at 08:39:01PM +0800, Tiezhu Yang wrote:
> When I update the latest kernel on the Loongson platform used with
> LS7A bridge chip, the serial console has no output, this is because
> the machine uses LS7A UART0 instead of CPU UART0, add UART node for
> LS7A PCH to enhance the compatibility.
> 
> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
> ---
>  arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 39 +++++++++++++++++++++++++++++++
>  1 file changed, 39 insertions(+)

applied to mips-next.

Thomas.
diff mbox series

Patch

diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
index e574a06..f99a7a1 100644
--- a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
+++ b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi
@@ -19,6 +19,45 @@ 
 			#interrupt-cells = <2>;
 		};
 
+		ls7a_uart0: serial@10080000 {
+			compatible = "ns16550a";
+			reg = <0 0x10080000 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart1: serial@10080100 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080100 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart2: serial@10080200 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080200 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
+		ls7a_uart3: serial@10080300 {
+			status = "disabled";
+			compatible = "ns16550a";
+			reg = <0 0x10080300 0 0x100>;
+			clock-frequency = <50000000>;
+			interrupt-parent = <&pic>;
+			interrupts = <8 IRQ_TYPE_LEVEL_HIGH>;
+			no-loopback-test;
+		};
+
 		pci@1a000000 {
 			compatible = "loongson,ls7a-pci";
 			device_type = "pci";