dw apb uart linux

DW是指Dreamchip，APB是指Advanced Peripheral Bus，UART是指Universal Asynchronous Receiver/Transmitter，Linux 是一种开源操作系统。

DW是一家开发嵌入式系统的公司，其产品包括芯片、开发板和软件工具。APB是一种常用的总线协议，用于连接多种外设到系统总线上。UART是一种常用的串行通信接口，广泛应用于数据传输、通信和控制等领域。Linux则是目前最为流行的开源操作系统之一，在嵌入式系统领域也有广泛的应用。

DW公司的产品常常使用APB进行外设连接，其中UART也是很常见的一种外设。在Linux的开源社区中，有大量的UART驱动程序和示例代码可以使用。同时，由于Linux支持多种架构和处理器架构，因此DW的APB总线和UART也可以在不同的处理器架构上使用。

总的来说，DW、APB、UART和Linux都是嵌入式系统领域中非常重要的概念和技术。它们的结合可以用于实现高性能、高可靠性和功能丰富的嵌入式系统。

相关问题

rk3588s 平台配置 AP6275 芯片，请提供配置DTS文件，采用UART9

以下是一个可能的DTS配置文件，用于在rk3588s平台上配置AP6275芯片，采用UART9接口：

/dts-v1/;
/plugin/;

/ {
    model = "rk3588s-ap6275";
    compatible = "rockchip,rk3588s", "rockchip,rk3588";

    chosen {
        bootargs = "console=ttyS9,115200n8 root=/dev/mmcblk0p1 rw rootwait earlycon";
    };

    memory@60000000 {
        device_type = "memory";
        reg = <0x0 0x60000000 0x0 0x80000000>;
    };

    chosen {
        bootargs = "console=ttyS9,115200n8 root=/dev/mmcblk0p1 rw rootwait earlycon";
    };

    reserved-memory {
        #address-cells = <2>;
        #size-cells = <2>;
        ranges;

        ap6275_reserved: ap6275_reserved@0 {
            reg = <0x0 0xff000000 0x0 0x400000>;
            no-map;
            linux,phandle = <&ap6275_reserved>;
            phandle = <&ap6275_reserved>;
        };
    };

    aliases {
        serial9 = "/soc/serial@f7300000";
    };

    soc {
        #address-cells = <2>;
        #size-cells = <2>;
        compatible = "simple-bus";
        ranges;

        serial@f7300000 {
            compatible = "snps,dw-apb-uart";
            reg = <0xf7300000 0x1000>;
            interrupts = <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>;
            clocks = <&cru UART9_CLK>;
            clock-names = "uart_clk";
            status = "okay";
        };
    };

    &serial9 {
        status = "okay";
    };

    &mmc {
        status = "okay";
        vmmc-supply = <&vcc_3v3>;
        pinctrl-0 = <&emmc_clk_4bit>;
        pinctrl-names = "default";
        bus-width = <4>;
        max-frequency = <200000000>;
        non-removable;
        assigned-clocks = <&cru EMMC_CLK>;
        assigned-clock-rates = <200000000>;
        status = "okay";
    };

    &mmc_phy {
        status = "okay";
    };

    &sdhci {
        status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&sdcard_clk>;
        bus-width = <8>;
        max-frequency = <200000000>;
        non-removable;
        vmmc-supply = <&vcc_3v3>;
    };

    &sdcard_clk {
        rockchip,pins = <10 14 RK_FUNC_2 &pcfg_pull_none>;
    };

    &i2c2 {
        status = "okay";
        clock-frequency = <400000>;
        pinctrl-names = "default";
        pinctrl-0 = <&i2c2_mclk>;
    };

    &i2c2_mclk {
        rockchip,pins = <11 12 RK_FUNC_1 &pcfg_pull_none>;
    };
};

请注意，这只是一个参考配置文件，具体的配置可能会因为具体的硬件配置而有所不同。另外，这个配置文件并没有包含AP6275的具体配置信息，你需要在你的设备上根据实际情况进行配置。

k3588s 平台配置 AP6275 芯片，请提供该部分的配置DTS文件，采用UART9连接ap6275模块

好的，以下是一个参考的DTS配置文件，用于在rk3588s平台上配置AP6275芯片，采用UART9接口连接ap6275模块：

/dts-v1/;
/plugin/;

/ {
    model = "rk3588s-ap6275";
    compatible = "rockchip,rk3588s", "rockchip,rk3588";

    chosen {
        bootargs = "console=ttyS9,115200n8 root=/dev/mmcblk0p1 rw rootwait earlycon";
    };

    memory@60000000 {
        device_type = "memory";
        reg = <0x0 0x60000000 0x0 0x80000000>;
    };

    reserved-memory {
        #address-cells = <2>;
        #size-cells = <2>;
        ranges;

        ap6275_reserved: ap6275_reserved@0 {
            reg = <0x0 0xff000000 0x0 0x400000>;
            no-map;
            linux,phandle = <&ap6275_reserved>;
            phandle = <&ap6275_reserved>;
        };
    };

    aliases {
        serial9 = "/soc/serial@f7300000";
    };

    soc {
        #address-cells = <2>;
        #size-cells = <2>;
        compatible = "simple-bus";
        ranges;

        serial@f7300000 {
            compatible = "snps,dw-apb-uart";
            reg = <0xf7300000 0x1000>;
            interrupts = <GIC_SPI 161 IRQ_TYPE_LEVEL_HIGH>;
            clocks = <&cru UART9_CLK>;
            clock-names = "uart_clk";
            status = "okay";
        };
    };

    &serial9 {
        status = "okay";
    };

    &mmc {
        status = "okay";
        vmmc-supply = <&vcc_3v3>;
        pinctrl-0 = <&emmc_clk_4bit>;
        pinctrl-names = "default";
        bus-width = <4>;
        max-frequency = <200000000>;
        non-removable;
        assigned-clocks = <&cru EMMC_CLK>;
        assigned-clock-rates = <200000000>;
        status = "okay";
    };

    &mmc_phy {
        status = "okay";
    };

    &sdhci {
        status = "okay";
        pinctrl-names = "default";
        pinctrl-0 = <&sdcard_clk>;
        bus-width = <8>;
        max-frequency = <200000000>;
        non-removable;
        vmmc-supply = <&vcc_3v3>;
    };

    &sdcard_clk {
        rockchip,pins = <10 14 RK_FUNC_2 &pcfg_pull_none>;
    };

    &i2c2 {
        status = "okay";
        clock-frequency = <400000>;
        pinctrl-names = "default";
        pinctrl-0 = <&i2c2_mclk>;
    };

    &i2c2_mclk {
        rockchip,pins = <11 12 RK_FUNC_1 &pcfg_pull_none>;
    };

    ap6275: wifi@1 {
        compatible = "brcm,bcm4329-fmac";
        reg = <1>;
        interrupt-parent = <&gpio>;
        interrupts = <96 IRQ_TYPE_LEVEL_LOW>;
        pinctrl-names = "default";
        pinctrl-0 = <&wifi_en>;
        status = "okay";
    };

    wifi_en: wifi-enable {
        rockchip,pins = <100 0 RK_FUNC_GPIO &pcfg_pull_none>;
        rockchip,drive-strength = <2>;
        rockchip,pull = <0>;
        gpio = <&gpio1 0 GPIO_ACTIVE_HIGH>;
        status = "okay";
    };
};

请注意，这只是一个参考配置文件，具体的配置可能会因为具体的硬件配置而有所不同。另外，这个配置文件并没有包含AP6275的具体配置信息，你需要在你的设备上根据实际情况进行配置。