一、功能调试
1. 确认原理图
phy 常用的接口有两种 RGMII 和 RMII, 这两种对应的物理接口有 6 中如下所示. 首先需要根据原理图确定是哪种接法, 根据接法对应的 name 在文档 Rockchip_Developer_Guide_Linux_GMAC_Mode_Configuration_CN.pdf中查找对应的配置.
1.1 RGMII 模式
该模式需要关注的硬件接口
- mac: GMACX_MCLKINOUT, ETHx_REFCLKO_25M
- phy: CLKOUT, XTAL_IN, XTAL_OUT
| MAC | PHY | name |
|---|---|---|
| GMACX_MCLKINOUT 悬空 ETHx_REFCLKO_25M 悬空 |
XTAL_IN/XTAL_OUT 由晶体提供时钟 | PLL output 125M for TX_CLK, Crystal 25M for PHY |
| GMACX_MCLKINOUT 悬空 ETHx_REFCLKO_25M 提供时钟给 XTAL_OUT |
XTAL_IN 接地 XTAL_OUT由 ETHx_REFCLKO_25M 提供时钟 |
PLL output 125M for TX_CLK, PLL 25M for PHY |
| GMACX_MCLKINOUT 时钟由 CLKOUT 提供 ETHx_REFCLKO_25M 悬空 |
XTAL_IN/XTAL_OUT 由晶体提供时钟 | 125M TX_CLK input from PHY, Crystal 25M for PHY |
| GMACX_MCLKINOUT 时钟由 CLKOUT 提供 ETHx_REFCLKO_25M 提供时钟给 XTAL_OUT |
XTAL_IN 接地, XTAL_OUT由ETHx_REFCLKO_25M提供时钟 |
125M TX_CLK input from PHY, PLL 25M for PHY |
1.2 RMII 模式
需要关注的引脚
- mac: GMACX_MCLKINOUT, ETHx_REFCLKO_25M(一直悬空)
- phy: PHY_TXCLK, XTAL_IN, XTAL_OUT
| MAC | PHY | name |
|---|---|---|
|
GMACX_MCLKINOUT 提供时钟给 XTAL_OUT ETHx_REFCLKO_25M 悬空 |
XTAL_IN 接地 XTAL_OUT 由 GMACX_MCLKINOUT 提供时钟 |
RMII Clock Output |
|
GMACX_MCLKINOUT 时钟由 PHY_TXCLK 提供 ETHx_REFCLKO_25M 悬空 |
XTAL_IN/XTAL_OUT 由晶体提供时钟 | RMII Clock Input |
1.3 确认 name
确认 mac 端接口
根据原理图:
- GMAC1_MCLKINOUT_M0 悬空 ==> GMACX_MCLKINOUT 悬空
- ETH1_REFCLKO_25M_M0 悬空 ==> ETHx_REFCLKO_25M 悬空
确认 phy 端接口
根据原理图:
- XTAL_IN/XTAL_OUT 由晶体提供时钟
根据前面的信息可以推出 name 为 PLL output 125M for TX_CLK, Crystal 25M for PHY在 rk 提供的文档 Rockchip_Developer_Guide_Linux_GMAC_Mode_Configuration_CN.pdf查找对应的配置.
&mdio1 {
rgmii_phy1: phy@0 {
compatible = "ethernet-phy-ieee802.3-c22"; // 协议
reg = <0x0>;
};
};
&gmac1 {
phy-mode = "rgmii"; // 接口类型
clock_in_out = "output"; // 输出时钟
snps,reset-gpio = <&gpio4 RK_PC2 GPIO_ACTIVE_LOW>; // 复位引脚
snps,reset-active-low; // 低电平有效
snps,reset-delays-us = <0 20000 100000>; // 复位延时时间
// 时钟配置
assigned-clocks = <&cru SCLK_GMAC1_RX_TX>, <&cru SCLK_GMAC1>;
assigned-clock-parents = <&cru SCLK_GMAC1_RMII_SPEED>;
assigned-clock-rates = <0>, <125000000>; // 千兆网卡时钟
pinctrl-names = "default";
pinctrl-0 = <&gmac1m0_miim // 引脚复用
&gmac1m0_tx_bus2
&gmac1m0_rx_bus2
&gmac1m0_rgmii_clk
&gmac1m0_rgmii_bus>;
// tx, rx 延时时间, 需要参考文档 Rockchip_Developer_Guide_Linux_GMAC_RGMII_Delayline_CN.pdf 配置
tx_delay = <0x4d>;
rx_delay = <0x2d>;
phy-handle = <&rgmii_phy1>;
status = "okay";
};
如果 dts 配置的不对会出现 dma 相关的报错, 出现这个报错, 按照前面的步骤确认硬件接法对应的name 然后查找对应的配置.
2. 配置驱动
这一步比较简单, rk 默认提供了该驱动的支持, 对应的路径 kernel/drivers/net/phy/realtek.c, 只需要打开宏 CONFIG_REALTEK_PHY即可.
3. 配置电源
如果原理图上的 mac 的 io 供电由 vcc_1v8 提供, 软件需要配置打开这个 vcc_1v8 供电.
软件上对于 gmac1 的电源控制为 vccio5-supply , 因此需要做对应的映射
&pmu_io_domains {
status = "okay";
pmuio1-supply = <&vcc3v3_pmu>;
pmuio2-supply = <&vcca1v8_pmu>;
vccio1-supply = <&vccio_acodec>;
vccio3-supply = <&vccio_sd>;
vccio4-supply = <&vcca1v8_pmu>;
- vccio5-supply = <&vcc_3v3>;
+ vccio5-supply = <&vcc_1v8>;
vccio6-supply = <&vcc1v8_dvp>;
vccio7-supply = <&vcc_3v3>;
};
这里如果没有配置正确的现象就是, 软件看起来一切正常, 可以读取 phy 信息, 能够 link up, 没有报错, 但是 ifconfig 读取不到 ip 地址 =_=.
参考文档(文档找rk的fae要):Rockchip_Developer_Guide_Linux_GMAC_CN.pdfRockchip_Developer_Guide_Linux_GMAC_RGMII_Delayline_CN.pdf以太网常见问题处理方法排查手册.pdf
二、吞吐量测试
pc 使用 iperf3 测试在 iperf3官网 下载安装, 下载后将 iperf3.exe 和 cygwin1.dll 复制粘贴到 C:\Windows\System32.
安卓 sdk 自带了这个工具, 在 external/iperf3运行 mmm ./编译,
编译之后生成 out/target/product/rk3566_rgo/system/bin/, push 到机器里面使用.
1. 发送测试
- pc端: 运行
iperf3.exe -s后等待
PS D:\project\pg1000\wifi固件\bcdm> iperf3.exe -s
-----------------------------------------------------------
Server listening on 5201
-----------------------------------------------------------
Accepted connection from 192.168.3.41, port 43542
[ 5] local 192.168.3.20 port 5201 connected to 192.168.*.* port 43544
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-1.00 sec 104 MBytes 872 Mbits/sec
[ 5] 1.00-2.00 sec 104 MBytes 873 Mbits/sec
[ 5] 2.00-3.00 sec 105 MBytes 881 Mbits/sec
[ 5] 3.00-4.00 sec 106 MBytes 886 Mbits/sec
[ 5] 4.00-5.00 sec 107 MBytes 900 Mbits/sec
[ 5] 5.00-6.00 sec 107 MBytes 900 Mbits/sec
[ 5] 6.00-7.00 sec 107 MBytes 895 Mbits/sec
[ 5] 7.00-8.00 sec 108 MBytes 902 Mbits/sec
[ 5] 8.00-9.00 sec 106 MBytes 892 Mbits/sec
[ 5] 9.00-10.00 sec 107 MBytes 897 Mbits/sec
[ 5] 10.00-10.02 sec 2.60 MBytes 884 Mbits/sec
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bandwidth
[ 5] 0.00-10.02 sec 0.00 Bytes 0.00 bits/sec sender
[ 5] 0.00-10.02 sec 1.04 GBytes 890 Mbits/sec receiver
-----------------------------------------------------------
*安卓端: 运行 ./iperf3 -c 192.168.*.* -i 1 -w 1M -t 10 -l 16000, 其中192.168.*.*: 为 pc 端的 ip
rk3566_rgo:/cache # ./iperf3 -c 192.168.*.* -i 1 -w 1M -t 10 -l 16000
Connecting to host 192.168.3.20, port 5201
[ 5] local 192.168.3.41 port 43544 connected to 192.168.3.20 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 108 MBytes 904 Mbits/sec 6 395 KBytes
[ 5] 1.00-2.00 sec 104 MBytes 872 Mbits/sec 9 361 KBytes
[ 5] 2.00-3.00 sec 105 MBytes 883 Mbits/sec 15 276 KBytes
[ 5] 3.00-4.00 sec 106 MBytes 886 Mbits/sec 12 218 KBytes
[ 5] 4.00-5.00 sec 107 MBytes 899 Mbits/sec 9 168 KBytes
[ 5] 5.00-6.00 sec 107 MBytes 901 Mbits/sec 0 436 KBytes
[ 5] 6.00-7.00 sec 107 MBytes 896 Mbits/sec 12 341 KBytes
[ 5] 7.00-8.00 sec 107 MBytes 901 Mbits/sec 9 331 KBytes
[ 5] 8.00-9.00 sec 106 MBytes 892 Mbits/sec 15 253 KBytes
[ 5] 9.00-10.00 sec 107 MBytes 896 Mbits/sec 12 188 KBytes
- - - - - - - - - - - - - - - - - - - - - - - - -
[ ID] Interval Transfer Bitrate Retr
[ 5] 0.00-10.00 sec 1.04 GBytes 893 Mbits/sec 99 sender
[ 5] 0.00-10.00 sec 1.04 GBytes 892 Mbits/sec receiver
2. 接收测试
发送测试反过来操作即可。
三、打开 led 灯
默认情况只亮一颗黄灯, 需要将另一颗绿灯点亮. 查看芯片手册, RTL8211F 的寄存器读写, 首先需要将要操作的 Address 对应的 page 写入 Page Select Register, 再对该寄存器进行读写.
要点亮灯对应检测到千兆网卡是亮灯需要将 bit8(绿灯), bit13(黄灯) 设置为 1. 首先往Page Select Register中写入对应的 page 0xd04, 然后再操作 0x10 寄存器. Page Select Register 如下所示.
编写代码如下文章来源：https://www.toymoban.com/news/detail-819457.html
#define PHY_ID_RTL8211F 0x001cc916
#define PAGE_SELECT_ADDR 0x1f
#define LED_PAGE_REG 0xd04
#define LED_CONTORL_REG 0X10
static int phy_rtl8211f_led_fixup(struct phy_device *phydev)
{
int value = 0;
if (phydev->phy_id != PHY_ID_RTL8211F)
return 0;
/* select page to 0xd04 */
phy_write(phydev, PAGE_SELECT_ADDR, LED_PAGE_REG);
/* When the network card is 1000m, open led1(bit8) and led2(bit13) */
value = phy_read(phydev, LED_CONTORL_REG);
value |= (1 << 8) | (1 << 13);
phy_write(phydev, LED_CONTORL_REG, value);
return 0;
}
完整修改如下文章来源地址https://www.toymoban.com/news/detail-819457.html
-- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -121,11 +121,10 @@ static void stmmac_exit_fs(struct net_device *dev);
#define STMMAC_COAL_TIMER(x) (jiffies + usecs_to_jiffies(x))
+#define PHY_ID_RTL8211F 0x001cc916
+#define PAGE_SELECT_ADDR 0x1f
+#define LED_PAGE_REG 0xd04
+#define LED_CONTORL_REG 0X10
/**
* stmmac_verify_args - verify the driver parameters.
@@ -2485,27 +2484,24 @@ static void stmmac_safety_feat_configuration(struct stmmac_priv *priv)
}
}
+static int phy_rtl8211f_led_fixup(struct phy_device *phydev)
{
+ int value = 0;
+ if (phydev->phy_id != PHY_ID_RTL8211F)
return 0;
+ /* select page to 0xd04 */
+ phy_write(phydev, PAGE_SELECT_ADDR, LED_PAGE_REG);
+ /* When the network card is 1000m, open led1(bit8) and led2(bit13) */
+ value = phy_read(phydev, LED_CONTORL_REG);
+ value |= (1 << 8) | (1 << 13);
+ phy_write(phydev, LED_CONTORL_REG, value);
return 0;
}
/**
* stmmac_hw_setup - setup mac in a usable state.
* @dev : pointer to the device structure.
@@ -4482,7 +4478,7 @@ int stmmac_dvr_probe(struct device *device,
__func__);
#endif
+ ret = phy_register_fixup_for_uid(PHY_ID_RTL8211F,0xffffffff, phy_rtl8211f_led_fixup);
if (ret)
pr_warn("Cannot register PHY board fixup.\n");
@@ -4685,7 +4681,7 @@ int stmmac_resume(struct device *dev)
mutex_unlock(&priv->lock);
+ phy_rtl8211f_led_fixup(ndev->phydev);
if (ndev->phydev)
phy_start(ndev->phydev);
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