原始碼版本是android5.1的，內核是3.10版本的，原廠box的SDK
看RTL8201F的規格書說是10M/100M的支持
然后看內核中專案用到的dts：
&gmac {
// pmu_regulator = "act_ldo5";
// pmu_enable_level = <1>; //1->HIGH, 0->LOW
// power-gpio = <&gpio0 GPIO_A6 GPIO_ACTIVE_HIGH>;
reset-gpio = <&gpio4 GPIO_B0 GPIO_ACTIVE_LOW>;
phy-mode = "rgmii";
clock_in_out = "input";
tx_delay = <0x30>;
rx_delay = <0x10>;
};
根據原理圖改成了：
&gmac {
// pmu_regulator = "act_ldo5";
// pmu_enable_level = <1>; //1->HIGH, 0->LOW
power-gpio = <&gpio1 GPIO_D0 GPIO_ACTIVE_HIGH>;
reset-gpio = <&gpio4 GPIO_B0 GPIO_ACTIVE_LOW>;
phy-mode = "rmii"; //rgmii
clock_in_out = "input";
tx_delay = <0x30>;
rx_delay = <0x10>;
};
RMII的Clock設定為input形式，得到的輸出log片段：
[ 1.048658] SCSI Media Changer driver v0.25
[ 1.048939] tun: Universal TUN/TAP device driver, 1.6
[ 1.048955] tun: (C) 1999-2004 Max Krasnyansky <[email protected]>
[ 1.049069] vmac_init.
[ 1.049590] stmmac_probe_config_dt: Can not read property: pmu_regulator.
[ 1.049609] stmmac_probe_config_dt: clock input/output? (input).
[ 1.049624] stmmac_probe_config_dt: TX delay(0x30).
[ 1.049637] stmmac_probe_config_dt: RX delay(0x10).
[ 1.049686] stmmac_probe_config_dt: is rockchip,rk3288-gmac
[ 1.049699] stmmc_pltfr_init:
[ 1.049718] stmmc_pltfr_init: init for RMII
[ 1.050154] stmmac - user ID: 0x10, Synopsys ID: 0x35
[ 1.050167] Normal descriptors
[ 1.050177] Ring mode enabled
[ 1.050188] DMA HW capability register supported
[ 1.050201] RX Checksum Offload Engine supported (type 2)
[ 1.050214] TX Checksum insertion supported
[ 1.050224] Wake-Up On Lan supported
[ 1.050261] Enable RX Mitigation via HW Watchdog Timer
[ 1.050663] PPP generic driver version 2.4.2
[ 1.050797] PPP BSD Compression module registered
[ 1.050812] PPP Deflate Compression module registered
[ 1.050834] PPP MPPE Compression module registered
[ 1.050848] NET: Registered protocol family 24
[ 1.050880] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled).
[ 46.022695] phy_power_on: enable = 1
[ 46.062118] Read the Ethernet MAC address from IDB:00:00:00:00:00:00
[ 46.062163] eth0: device MAC address 32:75:5b:2d:c9:9b
[ 46.064612] libphy: stmmac: probed
[ 46.064626] eth0: PHY ID 001cc816 at 0 IRQ 0 (stmmac-0:00) active
[ 46.064636] eth0: PHY ID 001cc816 at 1 IRQ 0 (stmmac-0:01) active
[ 46.164089] stmmac_open: DMA initialization failed
如果Clock改成以output形式，得到的log片段：
[ 0.996533] vmac_init.
[ 0.997062] stmmac_probe_config_dt: Can not read property: pmu_regulator.
[ 0.997081] stmmac_probe_config_dt: clock input/output? (output).
[ 0.997096] stmmac_probe_config_dt: TX delay(0x30).
[ 0.997109] stmmac_probe_config_dt: RX delay(0x10).
[ 0.997160] stmmac_probe_config_dt: is rockchip,rk3288-gmac
[ 0.997172] stmmc_pltfr_init:
[ 0.997193] stmmc_pltfr_init: init for RMII
[ 0.997641] stmmac - user ID: 0x10, Synopsys ID: 0x35
[ 0.997654] Normal descriptors
[ 0.997664] Ring mode enabled
[ 0.997675] DMA HW capability register supported
[ 0.997688] RX Checksum Offload Engine supported (type 2)
[ 0.997701] TX Checksum insertion supported
[ 0.997712] Wake-Up On Lan supported
[ 0.997748] Enable RX Mitigation via HW Watchdog Timer
[ 0.998144] PPP generic driver version 2.4.2
[ 0.998284] PPP BSD Compression module registered
[ 0.998300] PPP Deflate Compression module registered
[ 0.998321] PPP MPPE Compression module registered
[ 0.998336] NET: Registered protocol family 24
[ 0.998368] SLIP: version 0.8.4-NET3.019-NEWTTY (dynamic channels, max=256) (6 bit encapsulation enabled).
[ 10.014371] phy_power_on: enable = 1
[ 10.042418] android_usb gadget: high-speed config #1: android
[ 10.042744] android_work: sent uevent USB_STATE=CONFIGURED
[ 10.053832] Read the Ethernet MAC address from IDB:00:00:00:00:00:00
[ 10.053880] eth0: device MAC address 5a:7e:9a:88:22:dd
[ 10.056320] libphy: stmmac: probed
[ 10.056334] eth0: PHY ID 001cc816 at 0 IRQ 0 (stmmac-0:00) active
[ 10.056344] eth0: PHY ID 001cc816 at 1 IRQ 0 (stmmac-0:01) active
[ 12.020981] stmmc_pltfr_fix_mac_speed: fix speed to 100
[ 12.021013] stmmc_pltfr_fix_mac_speed: fix speed for RMII
[ 12.021025] libphy: stmmac-0:01 - Link is Up - 100/Full
開關系統里的Ethernet按鈕，得到：
[ 151.506823] phy_power_on: enable = 0
[ 155.787585] phy_power_on: enable = 1
[ 155.830956] eth0: device MAC address 5a:7e:9a:88:22:dd
[ 155.847032] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 157.790809] stmmc_pltfr_fix_mac_speed: fix speed to 100
[ 157.790874] stmmc_pltfr_fix_mac_speed: fix speed for RMII
[ 157.790907] libphy: stmmac-0:01 - Link is Up - 100/Full
[ 157.790973] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
不知道有沒有人知道，還有哪里要改的？
uj5u.com熱心網友回復：
3288芯片 rk建議的是配成input，stmmac_open: DMA initialization failed，看下頻率配對了沒，硬體量下clk。uj5u.com熱心網友回復：
clock-frequency我配的50M，
input的時候，硬體量PHY是沒有clock出來的，不知道怎么回事
uj5u.com熱心網友回復：
謝謝回復，現在配成input可以了，PHY也能初始化成功，但是和之前配置成output一樣，自動獲取不到IP地址
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標籤：內核源代碼研究區