Merge branch 'next' of git://git.denx.de/u-boot-avr32

[platform/kernel/u-boot.git] / net / eth.c

diff --git a/net/eth.c b/net/eth.c
index 1b56a35..8e83b66 100644 (file)
--- a/net/eth.c
+++ b/net/eth.c
@@ -28,6 +28,17 @@
 
 #if defined(CONFIG_CMD_NET) && defined(CONFIG_NET_MULTI)
 
+/*
+ * CPU and board-specific Ethernet initializations.  Aliased function
+ * signals caller to move on
+ */
+static int __def_eth_init(bd_t *bis)
+{
+       return -1;
+}
+int cpu_eth_init(bd_t *bis) __attribute((weak, alias("__def_eth_init")));
+int board_eth_init(bd_t *bis) __attribute((weak, alias("__def_eth_init")));
+
 #ifdef CFG_GT_6426x
 extern int gt6426x_eth_initialize(bd_t *bis);
 #endif
@@ -55,12 +66,24 @@ extern int scc_initialize(bd_t*);
 extern int skge_initialize(bd_t*);
 extern int tsi108_eth_initialize(bd_t*);
 extern int uli526x_initialize(bd_t *);
-extern int tsec_initialize(bd_t*, int, char *);
 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 greth_initialize(bd_t *);
 extern int mcffec_initialize(bd_t*);
+extern int mcdmafec_initialize(bd_t*);
+extern int at91sam9_eth_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 +161,8 @@ 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;
 
@@ -149,6 +173,10 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_MII) || defined(CONFIG_CMD_MII)
        miiphy_init();
 #endif
+       /* Try board-specific initialization first.  If it fails or isn't
+        * present, try the cpu-specific initialization */
+       if (board_eth_init(bis) < 0)
+               cpu_eth_init(bis);
 
 #if defined(CONFIG_DB64360) || defined(CONFIG_CPCI750)
        mv6436x_eth_initialize(bis);
@@ -180,28 +208,18 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_SK98)
        skge_initialize(bis);
 #endif
-#if defined(CONFIG_TSEC1)
-       tsec_initialize(bis, 0, CONFIG_TSEC1_NAME);
-#endif
-#if defined(CONFIG_TSEC2)
-       tsec_initialize(bis, 1, CONFIG_TSEC2_NAME);
-#endif
-#if defined(CONFIG_MPC85XX_FEC)
-       tsec_initialize(bis, 2, CONFIG_MPC85XX_FEC_NAME);
-#else
-#    if defined(CONFIG_TSEC3)
-       tsec_initialize(bis, 2, CONFIG_TSEC3_NAME);
-#    endif
-#    if defined(CONFIG_TSEC4)
-       tsec_initialize(bis, 3, CONFIG_TSEC4_NAME);
-#    endif
-#endif
 #if defined(CONFIG_UEC_ETH1)
        uec_initialize(0);
 #endif
 #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);
@@ -251,12 +269,19 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_BF537)
        bfin_EMAC_initialize(bis);
 #endif
-#if defined(CONFIG_ATSTK1000)
-       atstk1000_eth_initialize(bis);
+#if defined(CONFIG_GRETH)
+       greth_initialize(bis);
 #endif
 #if defined(CONFIG_MCFFEC)
        mcffec_initialize(bis);
 #endif
+#if defined(CONFIG_FSLDMAFEC)
+       mcdmafec_initialize(bis);
+#endif
+#if defined(CONFIG_AT91CAP9) || defined(CONFIG_AT91SAM9260) || \
+    defined(CONFIG_AT91SAM9263)
+       at91sam9_eth_initialize(bis);
+#endif
 
        if (!eth_devices) {
                puts ("No ethernet found.\n");
@@ -411,24 +436,26 @@ int eth_init(bd_t *bis)
 {
        struct eth_device* old_current;
 
-       if (!eth_current)
-               return 0;
+       if (!eth_current) {
+               puts ("No ethernet found.\n");
+               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 +484,65 @@ 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;
@@ -536,7 +619,7 @@ int eth_initialize(bd_t *bis)
 #if defined(CONFIG_MCF52x2)
        mcf52x2_miiphy_initialize(bis);
 #endif
-#if defined(CONFIG_NETARM)
+#if defined(CONFIG_DRIVER_NS7520_ETHERNET)
        ns7520_miiphy_initialize(bis);
 #endif
 #if defined(CONFIG_DRIVER_TI_EMAC)