/******************************************************************** * I.MX6 网卡能收不能发 * 说明： * MAC控制器到PHY之间的阻抗差异。 * * 2017-4-28 深圳 龙华樟坑村 曾剑锋 *******************************************************************/ 一、参考文档： 1. Understanding MII Transceiver Status Info ftp://ftp.psu.ac.th/pub/scyld/mii-status.html 2. 关于以太网PAUSE的一点研究 http://www.latelee.org/programming-under-linux/ethernet-pause-frame-study.html 二、U-Boot设定： setenv bootargs console=ttymxc0,115200 init=/init video=mxcfb0:dev=ldb,bpp=32 video=mxcfb1:off video=mxcfb2:off video=mxcfb3:off vmalloc=256M androidboot.console=ttymxc0 consoleblank=0 androidboot.hardware=freescale cma=384M androidboot.selinux=disabled; saveenv; reset; 三、网络设定： 1. 设定ip： ifconfig eth0 10.10.10.10 netmask 255.255.255.0 2. 主板抓包工具： tcpdump -i eth0 host 10.10.10.10 & tcpdump -vv -i eth0 host 10.10.10.10 & 四、ethtool工具： 1. Android 5.1 root@sabresd_6dq:/ # ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Link partner advertised link modes: 100baseT/Half Link partner advertised pause frame use: No Link partner advertised auto-negotiation: No Speed: 100Mb/s Duplex: Half Port: MII PHYAD: 1 Transceiver: external Auto-negotiation: on Supports Wake-on: g Wake-on: d Link detected: yes root@sabresd_6dq:/ # mtp_open libphy: 2188000.ethernet:01 - Link is Down libphy: 2188000.ethernet:01 - Link is Up - 1000/Full root@sabresd_6dq:/ # ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Link partner advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Link partner advertised pause frame use: Symmetric Receive-only Link partner advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 1 Transceiver: external Auto-negotiation: on Supports Wake-on: g Wake-on: d Link detected: yes root@sabresd_6dq:/ # 2. Android 4.2 root@android:/data # ./ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Speed: 1000Mb/s Duplex: Full Port: MII PHYAD: 1 Transceiver: external Auto-negotiation: on Link detected: yes root@android:/data # PHY: 1:01 - Link is Down PHY: 1:01 - Link is Up - 100/Half root@android:/data # ./ethtool eth0 Settings for eth0: Supported ports: [ TP MII ] Supported link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Supported pause frame use: Symmetric Supports auto-negotiation: Yes Advertised link modes: 10baseT/Half 10baseT/Full 100baseT/Half 100baseT/Full 1000baseT/Full Advertised pause frame use: Symmetric Advertised auto-negotiation: Yes Speed: 100Mb/s Duplex: Half Port: MII PHYAD: 1 Transceiver: external Auto-negotiation: on Link detected: yes 五、AR8031寄存器值： address 0x0 = 0x1000 . address 0x1 = 0x796d . address 0x2 = 0x4d . address 0x3 = 0xd074 . address 0x4 = 0x15e1 . address 0x5 = 0xcde1 . address 0x6 = 0xd . address 0x7 = 0x2001 . address 0x8 = 0x0 . address 0x9 = 0x300 . address 0xa = 0x3801 . address 0xb = 0x0 . address 0xc = 0x0 . address 0xf = 0xa000 . address 0x10 = 0x862 . address 0x11 = 0xbc5c . address 0x12 = 0x0 . address 0x13 = 0x0 . address 0x14 = 0x82c . address 0x15 = 0x0 . address 0x16 = 0x4e8 . address 0x17 = 0x0 . address 0x18 = 0x3200 . address 0x19 = 0x3000 . address 0x1a = 0x0 . address 0x1b = 0x63e . address 0x1c = 0x0 . address 0x1f = 0x8100 . 六、引脚重新配置： #define MX6DL_ENET_PAD_CTRL (PAD_CTL_PKE | PAD_CTL_PUE | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_HYS) #define PAD_CTL_PKE (1 << 12) 1 0000 0000 0000 #define PAD_CTL_PUE (1 << 13) 10 0000 0000 0000 #define PAD_CTL_PUS_100K_UP (2 << 14) 1000 0000 0000 0000 #define PAD_CTL_SPEED_MED (2 << 6) 1000 0000 #define PAD_CTL_DSE_40ohm (6 << 3) 11 0000 #define PAD_CTL_HYS (1 << 8) 1 0000 0000 1011 0001 1011 0000 b1b0 00013030 #define MX6DL_ENET_REF_CLK_PAD_CTRL (PAD_CTL_PUE | PAD_CTL_PUS_100K_UP | PAD_CTL_SPEED_MED | PAD_CTL_DSE_40ohm | PAD_CTL_SRE_FAST) #define PAD_CTL_PUE (1 << 13) 10 0000 0000 0000 #define PAD_CTL_PUS_100K_UP (2 << 14) 1000 0000 0000 0000 #define PAD_CTL_SPEED_MED (2 << 6) 1000 0000 #define PAD_CTL_DSE_40ohm (6 << 3) 11 0000 #define PAD_CTL_HYS (1 << 8) 1 0000 0000