Licheepi Zero Ethernet适配指南

U-Boot适配Ethernet

U-Boot 2017已经支持了sun8i-emac的驱动,只需要在编译时选上并且修改dts就行。

  • 进入u-boot源码目录:
$ make LicheePi_Zero_defconfig
$ make menuconfig

  • 选择 Device Drivers --->

  • 选择 Network device support ---> 并选中 Allwinner Sun8i Ethernet MAC support

  • 修改dts
diff --git a/arch/arm/dts/sun8i-v3s-licheepi-zero.dts b/arch/arm/dts/sun8i-v3s-licheepi-zero.dts
index 3d9168c..b8b9fc3 100644
--- a/arch/arm/dts/sun8i-v3s-licheepi-zero.dts
+++ b/arch/arm/dts/sun8i-v3s-licheepi-zero.dts
@@ -49,6 +49,7 @@
        compatible = "licheepi,licheepi-zero", "allwinner,sun8i-v3s";

        aliases {
+               ethernet0 = &emac;
                serial0 = &uart0;
        };

@@ -81,3 +82,14 @@
        usb0_id_det-gpio = <&pio 5 6 GPIO_ACTIVE_HIGH>;
        status = "okay";
 };
+
+&emac {
+       phy = <&phy0>;
+       phy-mode = "mii";
+       allwinner,use-internal-phy;
+       allwinner,leds-active-low;
+       status = "okay";
+       phy0: ethernet-phy@0 {
+               reg = <1>;
+       };
+};
diff --git a/arch/arm/dts/sun8i-v3s.dtsi b/arch/arm/dts/sun8i-v3s.dtsi
index ebefc0f..cb81dd5 100644
--- a/arch/arm/dts/sun8i-v3s.dtsi
+++ b/arch/arm/dts/sun8i-v3s.dtsi
@@ -96,6 +96,11 @@
                #size-cells = <1>;
                ranges;

+               syscon: syscon@01c00000 {
+                       compatible = "allwinner,sun8i-h3-syscon","syscon";
+                       reg = <0x01c00000 0x34>;
+               };
+
                mmc0: mmc@01c0f000 {
                        compatible = "allwinner,sun7i-a20-mmc";
                        reg = <0x01c0f000 0x1000>;
@@ -208,6 +213,17 @@
                        interrupt-controller;
                        #interrupt-cells = <3>;

+                       emac_rgmii_pins: emac0@0 {
+                               allwinner,pins = "PD0", "PD1", "PD2", "PD3",
+                                               "PD4", "PD5", "PD7",
+                                               "PD8", "PD9", "PD10",
+                                               "PD12", "PD13", "PD15",
+                                               "PD16", "PD17";
+                               allwinner,function = "emac";
+                               allwinner,drive = <SUN4I_PINCTRL_40_MA>;
+                               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+                       };
+
                        uart0_pins_a: uart0@0 {
                                pins = "PB8", "PB9";
                                function = "uart0";
@@ -270,6 +286,20 @@
                        status = "disabled";
                };

+               emac: ethernet@1c30000 {
+                       compatible = "allwinner,sun8i-h3-emac";
+                       reg = <0x01c30000 0x104>, <0x01c00030 0x4>;
+                       reg-names = "emac", "syscon";
+                       interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+                       resets = <&ccu RST_BUS_EMAC>, <&ccu RST_BUS_EPHY>;
+                       reset-names = "ahb", "ephy";
+                       clocks = <&ccu CLK_BUS_EMAC>, <&ccu CLK_BUS_EPHY>;
+                       clock-names = "ahb", "ephy";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+               };
+
                gic: interrupt-controller@01c81000 {
                        compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
                        reg = <0x01c81000 0x1000>,
  • 编译:

    $ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-

  • 烧写:

    $ dd if=u-boot-sunxi-with-spl.bin of=${card} bs=1024 seek=8

  • 使用Ethernet:

Kernel适配Ethernet

目前Linux 4.12还没又对sun8i-emac进行支持,所以Kernel要使用V3s的以太网要打sun8i-emac的补丁还有修改dts文件。

  • 打上sun8i-emac补丁:

拉下我已经适配好的内核源码:https://github.com/techping/linux/tree/licheepi-zero

  • 修改dts(上面git仓库是已经修改完的):
index 387fc2a..904e60e 100644
--- a/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts
+++ b/arch/arm/boot/dts/sun8i-v3s-licheepi-zero.dts
@@ -50,6 +50,7 @@

        aliases {
                serial0 = &uart0;
+               ethernet0 = &emac;
        };

        chosen {
@@ -101,3 +102,10 @@
        usb0_id_det-gpio = <&pio 5 6 GPIO_ACTIVE_HIGH>;
        status = "okay";
};
+
+&emac {
+       phy-handle = <&int_mii_phy>;
+       phy-mode = "mii";
+       allwinner,leds-active-low;
+       status = "okay";
+};
diff --git a/arch/arm/boot/dts/sun8i-v3s.dtsi b/arch/arm/boot/dts/sun8i-v3s.dtsi
index 7107596..65be2ab 100644
--- a/arch/arm/boot/dts/sun8i-v3s.dtsi
+++ b/arch/arm/boot/dts/sun8i-v3s.dtsi
@@ -40,7 +40,10 @@
*     OTHER DEALINGS IN THE SOFTWARE.
*/

+#include <dt-bindings/clock/sun8i-v3s-ccu.h>
+#include <dt-bindings/reset/sun8i-v3s-ccu.h>
#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/pinctrl/sun4i-a10.h>

/ {
        #address-cells = <1>;
@@ -93,6 +96,12 @@
                #size-cells = <1>;
                ranges;

+               syscon: syscon@1c00000 {
+                       compatible = "allwinner,sun8i-h3-system-controller",
+                               "syscon";
+                       reg = <0x01c00000 0x1000>;
+               };
+
                mmc0: mmc@01c0f000 {
                        compatible = "allwinner,sun7i-a20-mmc";
                        reg = <0x01c0f000 0x1000>;
@@ -205,6 +214,17 @@
                        interrupt-controller;
                        #interrupt-cells = <3>;

+                       emac_rgmii_pins: emac0@0 {
+                               allwinner,pins = "PD0", "PD1", "PD2", "PD3",
+                                               "PD4", "PD5", "PD7",
+                                               "PD8", "PD9", "PD10",
+                                               "PD12", "PD13", "PD15",
+                                               "PD16", "PD17";
+                               allwinner,function = "emac";
+                               allwinner,drive = <SUN4I_PINCTRL_40_MA>;
+                               allwinner,pull = <SUN4I_PINCTRL_NO_PULL>;
+                       };
+
                        i2c0_pins: i2c0 {
                                pins = "PB6", "PB7";
                                function = "i2c0";
@@ -295,6 +315,31 @@
                        #size-cells = <0>;
                };

+               emac: ethernet@1c30000 {
+                       compatible = "allwinner,sun8i-h3-emac";
+                       syscon = <&syscon>;
+                       reg = <0x01c30000 0x104>;
+                       interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>;
+                       interrupt-names = "macirq";
+                       resets = <&ccu RST_BUS_EMAC>;
+                       reset-names = "stmmaceth";
+                       clocks = <&ccu CLK_BUS_EMAC>;
+                       clock-names = "stmmaceth";
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+                       status = "disabled";
+
+                       mdio: mdio {
+                               #address-cells = <1>;
+                               #size-cells = <0>;
+                               int_mii_phy: ethernet-phy@0 {
+                                       compatible = "ethernet-phy-ieee802.3-c22";
+                                       reg = <1>;
+                                       clocks = <&ccu CLK_BUS_EPHY>;
+                                       resets = <&ccu RST_BUS_EPHY>;
+                               };
+                       };
+               };
                gic: interrupt-controller@01c81000 {
                        compatible = "arm,cortex-a7-gic", "arm,cortex-a15-gic";
                        reg = <0x01c81000 0x1000>,
  • 进入内核目录:
$ make sunxi_defconfig ARCH=arm
$ make menuconfig ARCH=arm

  • 选择 Device Drivers --->

  • 选择 Network device support --->

  • 选择 Ethernet driver support --->

  • 选中 Allwinner sun8i EMAC supportUse dwmac-sun8i bindings

  • 编译

$ make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf-

得到 zImage 和 sun8i-v3s-licheepi-zero.dtb

  • 烧写

将内核、dtb、rootfs刷入sd卡中,启动:

$ ifup eth0

eth0启动成功!

Ethernet驱动适配成功!