让redboot的网络功能重新生效

RedBoot_init
RedBoot_init(_do_flash_init, RedBoot_INIT_FIRST);
RedBoot_init(load_flash_config, RedBoot_INIT_FIRST);
RedBoot_init(ide_init, RedBoot_INIT_FIRST);
RedBoot_init(_zlib_init, RedBoot_INIT_FIRST);
RedBoot_init(net_init, RedBoot_INIT_LAST);

void
net_init(void)
{
    ......
// Initialize all network devices
    for (t = &__NETDEVTAB__[0]; t != &__NETDEVTAB_END__; t++) {
        if (t->init(t)) {       // 我的ep9312开发板对应ep93xx_init[luther.gliethttp]
            t->status = CYG_NETDEVTAB_STATUS_AVAIL;
        } else {
            // What to do if device init fails?
            t->status = 0;  // Device not [currently] available
        }
    }
}
CYG_HAL_TABLE_BEGIN( __NETDEVTAB__, netdev );
#define NETDEVTAB_ENTRY(_l,_name,_init,_instance)  \
static bool _init(struct cyg_netdevtab_entry *tab);                  \
cyg_netdevtab_entry_t _l CYG_HAL_TABLE_ENTRY(netdev) = {             \
   _name,                                                            \
   _init,                                                            \
   _instance                                                         \
};
ecos-2.0/packages/devs/eth/arm/ep93xx/v2_0/src/if_ep93xx.c|166| NETDEVTAB_ENTRY(ep93xx_netdev,
NETDEVTAB_ENTRY(ep93xx_netdev,
                "ep93xx",
                ep93xx_init,
                &ep93xx_sc);

ecos-2.0/packages/devs/eth/arm/ep93xx/v2_0/src/if_ep93xx.c|74| ep93xx_esa,
ecos-2.0/packages/devs/eth/arm/ep93xx/v2_0/src/if_ep93xx.c|82| "ep93xx_esa",
ecos-2.0/packages/redboot/v2_0/src/flash.c|1913| diag_printf("Request for config value '%s' - wrong type\n", key);

后来在启动时发现一个错误提示:
+ep93xx_init
... Scan for PHY units
PHY ID[1] = 15/f441, stat = 782d, control = 3000
After scan, phys_found 00000002, phys_good 00000002
Request for config value 'ep93xx_esa' - wrong type      // 从这里看未找到ep93xx_esa定义
EP93xx - no EEPROM, static ESA, or RedBoot config option.
从代码中查看到ep93xx_esa定义,因为flash_get_config向config中追加内容的函数,只在2个地方对我们用户提供了接口,
一个是alias命令,另一个就是fconfig -i命令中config_init函数,
config_init函数会将__CONFIG_options_TAB_END__中的所有built-in的config追加到config中,
CYG_HAL_TABLE_BEGIN( __CONFIG_options_TAB__, RedBoot_config_options);

#define RedBoot_config_option(_t_,_n_,_e_,_ie_,_type_,_dflt_)        \
struct config_option _config_option_##_n_                               \
CYG_HAL_TABLE_QUALIFIED_ENTRY(RedBoot_config_options,_n_) =             \
   {#_n_,_t_,_e_,_ie_,_type_,(unsigned long)_dflt_};

ecos-2.0/packages/devs/eth/arm/ep93xx/v2_0/src/if_ep93xx.c
RedBoot_config_option("Set eth0 network hardware address [MAC]",
                      ep93xx_esa,
                      ALWAYS_ENABLED,
                      true,
                      CONFIG_BOOL,
                      false
    );
RedBoot_config_option("eth0 network hardware address [MAC]",
                      ep93xx_esa_data,
                      "ep93xx_esa",
                      true,
                      CONFIG_ESA,
                      0
    );
另外还有如下文件定义了RedBoot_config_option函数.
packages/redboot/v2_0/src/flash.c
packages/redboot/v2_0/src/net/net_io.c
我们可以使用
RedBoot> fconfig ep93xx_esa
来查看系统中定义了的config key值.

所以我们来重新初始化一次
RedBoot> fconfig -i
Initialize non-volatile configuration - continue (y/n)? y
Run script at boot: true
Boot script:
Enter script, terminate with empty line
>> fis load ramdisk
>> fis load zImage
>> exec -r 0x800000 -s 0x600000
>>
Boot script timeout (1000ms resolution): 3
Use BOOTP for network configuration: false
Gateway IP address: 192.168.1.1
Local IP address: 192.168.1.150
Local IP address mask: 255.255.255.0
Default server IP address: 192.168.1.101


现在看到下面2个配置都出现了,这下正常了,呵呵[luther.gliethttp]
RedBoot> fconfig ep93xx_esa
ep93xx_esa: true
RedBoot> fconfig ep93xx_esa_data
ep93xx_esa_data: 0x00:0x00:0x00:0x00:0x30:0x3A
RedBoot>

好了现在,eth需要的2个变量都已经有了,来ping一个试试了[luther.gliethttp]
RedBoot> ping -h 192.168.1.1 -v
Network PING - from 192.168.1.150 to 192.168.1.1
 seq: 1, time: 1 (ticks)
 seq: 2, time: 1 (ticks)
 seq: 3, time: 1 (ticks)
 seq: 4, time: 1 (ticks)
 seq: 5, time: 1 (ticks)
 seq: 6, time: 1 (ticks)
 seq: 7, time: 1 (ticks)
 seq: 8, time: 1 (ticks)
 seq: 9, time: 1 (ticks)
 seq: 10, time: 1 (ticks)
PING - received 10 of 10 expected