Re: [PATCH 07/12] arm64: dts: hi3660: Add uarts nodes

[Guodong Xu]

On Tue, May 23, 2017 at 8:44 AM, Rob Herring <robh@xxxxxxxxxx> wrote:
> On Wed, May 17, 2017 at 04:37:40PM +0800, Guodong Xu wrote:
>> From: Chen Feng <puck.chen@xxxxxxxxxxxxx>
>>
>> Add nodes uart0 to uart4 and uart6 for hi3660 SoC.
>> Enable uart3 and uart6, disable uart5, in hikey960 board dts.
>>
>> On HiKey960:
>>  - UART6 is used as default console, and is wired out through low speed
>>          expansion connector.
>>  - UART3 has RTS/CTS hardware handshake, and is wired out through low
>>          speed expansion connector.
>>  - UART5 is not used in commercial launched boards. So disable it.
>>  - UART4 is connected to Bluetooth, WL1837.
>>
>> Signed-off-by: Chen Feng <puck.chen@xxxxxxxxxxxxx>
>> Signed-off-by: Wang Xiaoyin <hw.wangxiaoyin@xxxxxxxxxxxxx>
>> Signed-off-by: Guodong Xu <guodong.xu@xxxxxxxxxx>
>> Reviewed-by: Zhangfei Gao <zhangfei.gao@xxxxxxxxxxxxx>
>> ---
>>  arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts | 18 +++++--
>>  arch/arm64/boot/dts/hisilicon/hi3660.dtsi         | 60 +++++++++++++++++++++++
>>  2 files changed, 73 insertions(+), 5 deletions(-)
>>
>> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
>> index f685b1e..513c496 100644
>> --- a/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
>> +++ b/arch/arm64/boot/dts/hisilicon/hi3660-hikey960.dts
>> @@ -15,12 +15,16 @@
>>       compatible = "hisilicon,hi3660-hikey960", "hisilicon,hi3660";
>>
>>       aliases {
>> -             serial5 = &uart5;       /* console UART */
>> +             serial0 = &uart0;
>> +             serial1 = &uart1;
>> +             serial2 = &uart2;
>> +             serial3 = &uart3;
>> +             serial4 = &uart4;
>> +             serial5 = &uart5;
>> +             serial6 = &uart6;
>>       };
>>
>> -     chosen {
>> -             stdout-path = "serial5:115200n8";
>
> Why is this removed?
>

I will add this back, but will change serial5 to 6. Serial6 is now the
default console.

serial5 is obsoleted on commercial boards.


>> -     };
>> +     chosen {};
>>
>>       memory@0 {
>>               device_type = "memory";
>> @@ -47,6 +51,10 @@
>>       status = "okay";
>>  };
>>
>> -&uart5 {
>> +&uart3 {
>> +     status = "okay";
>> +};
>> +
>> +&uart6 {
>>       status = "okay";
>
> labels for LS connector?
>

Yes, I Will add.

-Guodong

>>  };
>> diff --git a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
>> index 3bea0d2..0951a29 100644
>> --- a/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
>> +++ b/arch/arm64/boot/dts/hisilicon/hi3660.dtsi
>> @@ -242,6 +242,56 @@
>>                       status = "disabled";
>>               };
>>
>> +             uart0: serial@fdf02000 {
>> +                     compatible = "arm,pl011", "arm,primecell";
>> +                     reg = <0x0 0xfdf02000 0x0 0x1000>;
>> +                     interrupts = <GIC_SPI 74 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&crg_ctrl HI3660_CLK_MUX_UART0>,
>> +                              <&crg_ctrl HI3660_PCLK>;
>> +                     clock-names = "uartclk", "apb_pclk";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart1: serial@fdf00000 {
>> +                     compatible = "arm,pl011", "arm,primecell";
>> +                     reg = <0x0 0xfdf00000 0x0 0x1000>;
>> +                     interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&crg_ctrl HI3660_CLK_GATE_UART1>,
>> +                              <&crg_ctrl HI3660_CLK_GATE_UART1>;
>> +                     clock-names = "uartclk", "apb_pclk";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart2: serial@fdf03000 {
>> +                     compatible = "arm,pl011", "arm,primecell";
>> +                     reg = <0x0 0xfdf03000 0x0 0x1000>;
>> +                     interrupts = <GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&crg_ctrl HI3660_CLK_GATE_UART2>,
>> +                              <&crg_ctrl HI3660_PCLK>;
>> +                     clock-names = "uartclk", "apb_pclk";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart3: serial@ffd74000 {
>> +                     compatible = "arm,pl011", "arm,primecell";
>> +                     reg = <0x0 0xffd74000 0x0 0x1000>;
>> +                     interrupts = <GIC_SPI 114 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&crg_ctrl HI3660_FACTOR_UART3>,
>> +                              <&crg_ctrl HI3660_PCLK>;
>> +                     clock-names = "uartclk", "apb_pclk";
>> +                     status = "disabled";
>> +             };
>> +
>> +             uart4: serial@fdf01000 {
>> +                     compatible = "arm,pl011", "arm,primecell";
>> +                     reg = <0x0 0xfdf01000 0x0 0x1000>;
>> +                     interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&crg_ctrl HI3660_CLK_GATE_UART4>,
>> +                              <&crg_ctrl HI3660_CLK_GATE_UART4>;
>> +                     clock-names = "uartclk", "apb_pclk";
>> +                     status = "disabled";
>> +             };
>> +
>>               uart5: serial@fdf05000 {
>>                       compatible = "arm,pl011", "arm,primecell";
>>                       reg = <0x0 0xfdf05000 0x0 0x1000>;
>> @@ -252,6 +302,16 @@
>>                       status = "disabled";
>>               };
>>
>> +             uart6: serial@fff32000 {
>> +                     compatible = "arm,pl011", "arm,primecell";
>> +                     reg = <0x0 0xfff32000 0x0 0x1000>;
>> +                     interrupts = <GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH>;
>> +                     clocks = <&crg_ctrl HI3660_CLK_UART6>,
>> +                              <&crg_ctrl HI3660_PCLK>;
>> +                     clock-names = "uartclk", "apb_pclk";
>> +                     status = "disabled";
>> +             };
>> +
>>               gpio0: gpio@e8a0b000 {
>>                       compatible = "arm,pl061", "arm,primecell";
>>                       reg = <0 0xe8a0b000 0 0x1000>;
>> --
>> 2.10.2
>>