让redboot的网络功能重新生效.docx

让redboot的网络功能重新生效RedBoot_initRedBoot_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);voidnet_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_initluther.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 typen, key);后来在启动时发现一个错误提示:+ep93xx_init. Scan for PHY unitsPHY ID1 = 15/f441, stat = 782d, control = 3000After scan, phys_found 00000002, phys_good 00000002Request 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.cRedBoot_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.cpackages/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 -iInitialize non-volatile configuration - continue (y/n)? yRun script at boot: trueBoot script:Enter script, terminate with empty line fis load ramdisk fis load zImage exec -r 0x800000 -s 0x600000Boot script timeout (1000ms resolution): 3Use BOOTP for network configuration: falseGateway IP address: Local IP address: 50Local IP address mask: Default server IP address: 01现在看到下面2个配置都出现了,这下正常了,呵呵luther.gliethttpRedBoot fconfig ep93xx_esaep93xx_esa: trueRedBoot fconfig ep93xx_esa_dataep93xx_esa_data: 0x00:0x00:0x00:0x00:0x30:0x3ARedBoot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.gliethttpRedBoot ping -h -vNetwork PING - from 50 to seq: 1, time: 1 (ticks)seq: 2, time: 1 (ticks)seq: 3, time: 1 (ticks)seq: 4, time: 1 (ticks)seq: