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dts: mtmips: enable high-speed UART support for mt7628

All three UARTs of mt7628 are actually MediaTek's high-speed UARTs which
support baudrate up to 921600.
The high-speed UART is compatible with ns16550 when baudrate <= 115200.

Add compatible string to dtsi file so u-boot can use it when serial_mtk
driver is built in.

Reviewed-by: Stefan Roese <sr@denx.de>
Signed-off-by: Weijie Gao <weijie.gao@mediatek.com>
Weijie Gao 4 роки тому
батько
коміт
5fcea8d3f9
1 змінених файлів з 3 додано та 3 видалено
  1. 3 3
      arch/mips/dts/mt7628a.dtsi

+ 3 - 3
arch/mips/dts/mt7628a.dtsi

@@ -124,7 +124,7 @@
 		};
 
 		uart0: uartlite@c00 {
-			compatible = "ns16550a";
+			compatible = "mediatek,hsuart", "ns16550a";
 			reg = <0xc00 0x100>;
 
 			clock-frequency = <40000000>;
@@ -139,7 +139,7 @@
 		};
 
 		uart1: uart1@d00 {
-			compatible = "ns16550a";
+			compatible = "mediatek,hsuart", "ns16550a";
 			reg = <0xd00 0x100>;
 
 			clock-frequency = <40000000>;
@@ -154,7 +154,7 @@
 		};
 
 		uart2: uart2@e00 {
-			compatible = "ns16550a";
+			compatible = "mediatek,hsuart", "ns16550a";
 			reg = <0xe00 0x100>;
 
 			clock-frequency = <40000000>;