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 --- arch/mips/dts/mt7628a.dtsi | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/mips/dts/mt7628a.dtsi b/arch/mips/dts/mt7628a.dtsi index 6bc0722b07..e9241a0737 100644 --- a/arch/mips/dts/mt7628a.dtsi +++ b/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>;