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-rw-r--r--common/cmd_nvedit.c6
-rw-r--r--include/common.h1
-rw-r--r--net/eth.c11
-rw-r--r--net/net.c134
4 files changed, 91 insertions, 61 deletions
diff --git a/common/cmd_nvedit.c b/common/cmd_nvedit.c
index 02b18ec32..68c673e7c 100644
--- a/common/cmd_nvedit.c
+++ b/common/cmd_nvedit.c
@@ -75,7 +75,12 @@ DECLARE_GLOBAL_DATA_PTR;
static const unsigned long baudrate_table[] = CONFIG_SYS_BAUDRATE_TABLE;
#define N_BAUDRATES (sizeof(baudrate_table) / sizeof(baudrate_table[0]))
+static int env_id = 1;
+int get_env_id (void)
+{
+ return env_id;
+}
/************************************************************************
* Command interface: print one or all environment variables
*/
@@ -160,6 +165,7 @@ int _do_setenv (int flag, int argc, char *argv[])
return 1;
}
+ env_id++;
/*
* search if variable with this name already exists
*/
diff --git a/include/common.h b/include/common.h
index afee1889a..b75ea60b8 100644
--- a/include/common.h
+++ b/include/common.h
@@ -269,6 +269,7 @@ void forceenv (char *, char *);
#ifdef CONFIG_AUTO_COMPLETE
int env_complete(char *var, int maxv, char *cmdv[], int maxsz, char *buf);
#endif
+int get_env_id (void);
void pci_init (void);
void pci_init_board(void);
diff --git a/net/eth.c b/net/eth.c
index ec2ef1a36..217e8853f 100644
--- a/net/eth.c
+++ b/net/eth.c
@@ -28,6 +28,9 @@
#if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
+static char *act = NULL;
+static int env_changed_id = 0;
+
/*
* CPU and board-specific Ethernet initializations. Aliased function
* signals caller to move on
@@ -461,13 +464,17 @@ void eth_try_another(int first_restart)
#ifdef CONFIG_NET_MULTI
void eth_set_current(void)
{
- char *act;
struct eth_device* old_current;
+ int env_id;
if (!eth_current) /* XXX no current */
return;
- act = getenv("ethact");
+ env_id = get_env_id();
+ if ((act == NULL) || (env_changed_id != env_id)) {
+ act = getenv("ethact");
+ env_changed_id = env_id;
+ }
if (act != NULL) {
old_current = eth_current;
do {
diff --git a/net/net.c b/net/net.c
index 459baf4ea..a55f4d33f 100644
--- a/net/net.c
+++ b/net/net.c
@@ -209,6 +209,8 @@ uchar NetArpWaitPacketBuf[PKTSIZE_ALIGN + PKTALIGN];
ulong NetArpWaitTimerStart;
int NetArpWaitTry;
+int env_changed_id = 0;
+
void ArpRequest (void)
{
int i;
@@ -276,6 +278,78 @@ void ArpTimeoutCheck(void)
}
}
+int
+NetInitLoop(proto_t protocol)
+{
+ bd_t *bd = gd->bd;
+ int env_id = get_env_id ();
+
+ /* update only when the environment has changed */
+ if (env_changed_id == env_id)
+ return 0;
+
+ switch (protocol) {
+#if defined(CONFIG_CMD_NFS)
+ case NFS:
+#endif
+#if defined(CONFIG_CMD_PING)
+ case PING:
+#endif
+#if defined(CONFIG_CMD_SNTP)
+ case SNTP:
+#endif
+ case NETCONS:
+ case TFTP:
+ NetCopyIP(&NetOurIP, &bd->bi_ip_addr);
+ NetOurGatewayIP = getenv_IPaddr ("gatewayip");
+ NetOurSubnetMask= getenv_IPaddr ("netmask");
+ NetOurVLAN = getenv_VLAN("vlan");
+ NetOurNativeVLAN = getenv_VLAN("nvlan");
+
+ switch (protocol) {
+#if defined(CONFIG_CMD_NFS)
+ case NFS:
+#endif
+ case NETCONS:
+ case TFTP:
+ NetServerIP = getenv_IPaddr ("serverip");
+ break;
+#if defined(CONFIG_CMD_PING)
+ case PING:
+ /* nothing */
+ break;
+#endif
+#if defined(CONFIG_CMD_SNTP)
+ case SNTP:
+ /* nothing */
+ break;
+#endif
+ default:
+ break;
+ }
+
+ break;
+ case BOOTP:
+ case RARP:
+ /*
+ * initialize our IP addr to 0 in order to accept ANY
+ * IP addr assigned to us by the BOOTP / RARP server
+ */
+ NetOurIP = 0;
+ NetServerIP = getenv_IPaddr ("serverip");
+ NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */
+ NetOurNativeVLAN = getenv_VLAN("nvlan");
+ case CDP:
+ NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */
+ NetOurNativeVLAN = getenv_VLAN("nvlan");
+ break;
+ default:
+ break;
+ }
+ env_changed_id = env_id;
+ return 0;
+}
+
/**********************************************************************/
/*
* Main network processing loop.
@@ -340,65 +414,7 @@ restart:
* here on, this code is a state machine driven by received
* packets and timer events.
*/
-
- switch (protocol) {
-#if defined(CONFIG_CMD_NFS)
- case NFS:
-#endif
-#if defined(CONFIG_CMD_PING)
- case PING:
-#endif
-#if defined(CONFIG_CMD_SNTP)
- case SNTP:
-#endif
- case NETCONS:
- case TFTP:
- NetCopyIP(&NetOurIP, &bd->bi_ip_addr);
- NetOurGatewayIP = getenv_IPaddr ("gatewayip");
- NetOurSubnetMask= getenv_IPaddr ("netmask");
- NetOurVLAN = getenv_VLAN("vlan");
- NetOurNativeVLAN = getenv_VLAN("nvlan");
-
- switch (protocol) {
-#if defined(CONFIG_CMD_NFS)
- case NFS:
-#endif
- case NETCONS:
- case TFTP:
- NetServerIP = getenv_IPaddr ("serverip");
- break;
-#if defined(CONFIG_CMD_PING)
- case PING:
- /* nothing */
- break;
-#endif
-#if defined(CONFIG_CMD_SNTP)
- case SNTP:
- /* nothing */
- break;
-#endif
- default:
- break;
- }
-
- break;
- case BOOTP:
- case RARP:
- /*
- * initialize our IP addr to 0 in order to accept ANY
- * IP addr assigned to us by the BOOTP / RARP server
- */
- NetOurIP = 0;
- NetServerIP = getenv_IPaddr ("serverip");
- NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */
- NetOurNativeVLAN = getenv_VLAN("nvlan");
- case CDP:
- NetOurVLAN = getenv_VLAN("vlan"); /* VLANs must be read */
- NetOurNativeVLAN = getenv_VLAN("nvlan");
- break;
- default:
- break;
- }
+ NetInitLoop(protocol);
switch (net_check_prereq (protocol)) {
case 1: