PPC: Use r2 instead of r29 as global data pointer

[u-boot] / net / eth.c

diff --git a/net/eth.c b/net/eth.c
index 1b56a356c4f4544623b1093b6ef614dd1ff21a38..75175ec62b90c8fc1d79f840dfe4c5b806ed256a 100644 (file)
--- a/net/eth.c
+++ b/net/eth.c
@@ -60,7 +60,20 @@ extern int npe_initialize(bd_t *);
 extern int uec_initialize(int);
 extern int bfin_EMAC_initialize(bd_t *);
 extern int atstk1000_eth_initialize(bd_t *);
+extern int atngw100_eth_initialize(bd_t *);
 extern int mcffec_initialize(bd_t*);
+extern int mcdmafec_initialize(bd_t*);
+
+#ifdef CONFIG_API
+extern void (*push_packet)(volatile void *, int);
+
+static struct {
+       uchar data[PKTSIZE];
+       int length;
+} eth_rcv_bufs[PKTBUFSRX];
+
+static unsigned int eth_rcv_current = 0, eth_rcv_last = 0;
+#endif
 
 static struct eth_device *eth_devices, *eth_current;
 
@@ -138,7 +151,8 @@ int eth_register(struct eth_device* dev)
 
 int eth_initialize(bd_t *bis)
 {
-       char enetvar[32], env_enetaddr[6];
+       char enetvar[32];
+       unsigned char env_enetaddr[6];
        int i, eth_number = 0;
        char *tmp, *end;
 
@@ -202,6 +216,12 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_UEC_ETH2)
        uec_initialize(1);
 #endif
+#if defined(CONFIG_UEC_ETH3)
+       uec_initialize(2);
+#endif
+#if defined(CONFIG_UEC_ETH4)
+       uec_initialize(3);
+#endif
 
 #if defined(FEC_ENET) || defined(CONFIG_ETHER_ON_FCC)
        fec_initialize(bis);
@@ -254,9 +274,15 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_ATSTK1000)
        atstk1000_eth_initialize(bis);
 #endif
+#if defined(CONFIG_ATNGW100)
+       atngw100_eth_initialize(bis);
+#endif
 #if defined(CONFIG_MCFFEC)
        mcffec_initialize(bis);
 #endif
+#if defined(CONFIG_FSLDMAFEC)
+       mcdmafec_initialize(bis);
+#endif
 
        if (!eth_devices) {
                puts ("No ethernet found.\n");
@@ -412,23 +438,23 @@ int eth_init(bd_t *bis)
        struct eth_device* old_current;
 
        if (!eth_current)
-               return 0;
+               return -1;
 
        old_current = eth_current;
        do {
                debug ("Trying %s\n", eth_current->name);
 
-               if (eth_current->init(eth_current, bis)) {
+               if (eth_current->init(eth_current,bis) >= 0) {
                        eth_current->state = ETH_STATE_ACTIVE;
 
-                       return 1;
+                       return 0;
                }
                debug  ("FAIL\n");
 
                eth_try_another(0);
        } while (old_current != eth_current);
 
-       return 0;
+       return -1;
 }
 
 void eth_halt(void)
@@ -457,9 +483,65 @@ int eth_rx(void)
        return eth_current->recv(eth_current);
 }
 
+#ifdef CONFIG_API
+static void eth_save_packet(volatile void *packet, int length)
+{
+       volatile char *p = packet;
+       int i;
+
+       if ((eth_rcv_last+1) % PKTBUFSRX == eth_rcv_current)
+               return;
+
+       if (PKTSIZE < length)
+               return;
+
+       for (i = 0; i < length; i++)
+               eth_rcv_bufs[eth_rcv_last].data[i] = p[i];
+
+       eth_rcv_bufs[eth_rcv_last].length = length;
+       eth_rcv_last = (eth_rcv_last + 1) % PKTBUFSRX;
+}
+
+int eth_receive(volatile void *packet, int length)
+{
+       volatile char *p = packet;
+       void *pp = push_packet;
+       int i;
+
+       if (eth_rcv_current == eth_rcv_last) {
+               push_packet = eth_save_packet;
+               eth_rx();
+               push_packet = pp;
+
+               if (eth_rcv_current == eth_rcv_last)
+                       return -1;
+       }
+
+       if (length < eth_rcv_bufs[eth_rcv_current].length)
+               return -1;
+
+       length = eth_rcv_bufs[eth_rcv_current].length;
+
+       for (i = 0; i < length; i++)
+               p[i] = eth_rcv_bufs[eth_rcv_current].data[i];
+
+       eth_rcv_current = (eth_rcv_current + 1) % PKTBUFSRX;
+       return length;
+}
+#endif /* CONFIG_API */
+
 void eth_try_another(int first_restart)
 {
        static struct eth_device *first_failed = NULL;
+       char *ethrotate;
+
+       /*
+        * Do not rotate between network interfaces when
+        * 'ethrotate' variable is set to 'no'.
+        */
+       if (((ethrotate = getenv ("ethrotate")) != NULL) &&
+           (strcmp(ethrotate, "no") == 0))
+               return;
 
        if (!eth_current)
                return;