求助：AM3358连接DP83848

王工：

参考电路原理图我发给eric了，他应该转给你了。

建议先在u-boot下调试，对应要修改的驱动在：

\board\ti\am335x\board.c和\board\ti\am335x\mux.c

检查下：

static struct cpsw_slave_data cpsw_slaves[] 结构体；

board_eth_init()函数；

enable_board_pin_mux()函数；

周工：

    感谢您的回复，目前已经解决问题，硬件电路没有问题，问题出在软件的配置上

问题就出在static struct cpsw_slave_data cpsw_slaves[] 结构体，结构体原来的初始化如下

static struct cpsw_slave_data cpsw_slaves[] = {                                         
        {                                                                               
                .slave_reg_ofs  = 0x208,                                                
                .sliver_reg_ofs = 0xd80,                                                
                .phy_id         = 0,                                                    
        },                                                                              
        {                                                                               
                .slave_reg_ofs  = 0x308,                                                
                .sliver_reg_ofs = 0xdc0,                                                
                .phy_id         = 1,                                                    
        },                                                                              
};    

将其改为

static struct cpsw_slave_data cpsw_slaves[] = {                                         
        {                                                                               
                .slave_reg_ofs  = 0x208,                                                
                .sliver_reg_ofs = 0xd80,                                                
                .phy_id         = 1,                                                    
        },                                                                              
        {                                                                               
                .slave_reg_ofs  = 0x308,                                                
                .sliver_reg_ofs = 0xdc0,                                                
                .phy_id         = 0,                                                    
        },                                                                              
};  

问题解决，网口可以正常工作，是因为DP83848这颗芯片id为0时工作于隔离模式的问题吗？          

周工：

    感谢您的帮助，目前网口已经调试通过，硬件没有问题，问题在软件的配置上

就是static struct cpsw_slave_data cpsw_slaves[] 结构体的问题

该结构体默认配置为

static struct cpsw_slave_data cpsw_slaves[] = {                                         
        {                                                                               
                .slave_reg_ofs  = 0x208,                                                
                .sliver_reg_ofs = 0xd80,                                                
                .phy_id         = 0,                                                    
        },                                                                              
        {                                                                               
                .slave_reg_ofs  = 0x308,                                                
                .sliver_reg_ofs = 0xdc0,                                                
                .phy_id         = 1,                                                    
        },                                                                              
};  

将其改为

static struct cpsw_slave_data cpsw_slaves[] = {                                         
        {                                                                               
                .slave_reg_ofs  = 0x208,                                                
                .sliver_reg_ofs = 0xd80,                                                
                .phy_id         = 1,                                                    
        },                                                                              
        {                                                                               
                .slave_reg_ofs  = 0x308,                                                
                .sliver_reg_ofs = 0xdc0,                                                
                .phy_id         = 0,                                                    
        },                                                                              
};  

修改后，网口可以正常通信，问题是不是ID 0对于DP83848工作于隔离模式，所以不能正常工作？