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| author |   Tiezhu Yang <yangtiezhu@loongson.cn> | 2020-09-17 20:39:01 +0800 |
|---|---|---|
| committer |   Thomas Bogendoerfer <tsbogend@alpha.franken.de> | 2020-09-21 22:19:07 +0200 |
| commit | 5fa1f7680f2728d62561db6d4a9282c4d21f2324 (patch) | |
| tree | 6e3018683bce6e7614ae3a06155affa7f73690fe | |
| parent | MIPS: Ingenic: Add CPU nodes for Ingenic SoCs. (diff) | |
| download | linux-dev-5fa1f7680f2728d62561db6d4a9282c4d21f2324.tar.xz linux-dev-5fa1f7680f2728d62561db6d4a9282c4d21f2324.zip | |
MIPS: Loongson64: Add UART node for LS7A PCH
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>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
| -rw-r--r-- | arch/mips/boot/dts/loongson/ls7a-pch.dtsi | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/mips/boot/dts/loongson/ls7a-pch.dtsi b/arch/mips/boot/dts/loongson/ls7a-pch.dtsi index e574a062dfae..f99a7a11fded 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"; |