[lwip 2/2] Move and rename sys_arch_data_sync_barier()

[Sebastian Huber]

This function is not present in the lwIP mainline.  Move it to the only
user and rename it to tms570__data_sync_barier().
---
 uLan/ports/driver/tms570_emac/tms570_netif.c | 16 ++++++++++++----
 uLan/ports/os/rtems/arch/sys_arch.h          |  5 -----
 2 files changed, 12 insertions(+), 9 deletions(-)

diff --git a/uLan/ports/driver/tms570_emac/tms570_netif.c b/uLan/ports/driver/tms570_emac/tms570_netif.c
index 8d14687..e166869 100644
--- a/uLan/ports/driver/tms570_emac/tms570_netif.c
+++ b/uLan/ports/driver/tms570_emac/tms570_netif.c
@@ -151,6 +151,14 @@ static void tms570_eth_init_netif_fill(struct netif *netif);
 static void tms570_eth_init_buffer_descriptors(struct tms570_netif_state *nf_state);
 static void tms570_eth_init_set_pinmux();
 
+static inline void
+tms570_data_sync_barier(void)
+{
+#ifdef __arm__
+  _ARM_Data_synchronization_barrier();
+#endif
+}
+
 /***** initializing functions **********************************************/
 
 
@@ -685,7 +693,7 @@ tms570_eth_send_raw(struct netif *netif, struct pbuf *pbuf)
   if (curr_bd == NULL)
     txch->inactive_tail = curr_bd;
 
-  sys_arch_data_sync_barier();
+  tms570_data_sync_barier();
 
   if (txch->active_tail == NULL) {
     txch->active_head = packet_head;
@@ -767,7 +775,7 @@ tms570_eth_process_irq_rx(void *arg)
     unsigned int processed_rx_len = 0;
     int corrupt_fl = 0;
 
-    sys_arch_data_sync_barier();
+    tms570_data_sync_barier();
 
     pbuf = curr_bd->pbuf;
     total_rx_len = curr_bd->flags_pktlen & 0xFFFF;
@@ -1086,7 +1094,7 @@ tms570_eth_rx_pbuf_refill(struct tms570_netif_state *nf_state, int single_fl)
       rxch->inactive_head = curr_bd->next;
 
       curr_bd->next = NULL;
-      sys_arch_data_sync_barier();
+      tms570_data_sync_barier();
 
       if (rxch->active_head == NULL) {
         rxch->active_head = curr_head;
@@ -1094,7 +1102,7 @@ tms570_eth_rx_pbuf_refill(struct tms570_netif_state *nf_state, int single_fl)
         tms570_eth_hw_set_RX_HDP(nf_state, rxch->active_head);
       } else {
         rxch->active_tail->next = curr_head;
-        sys_arch_data_sync_barier();
+        tms570_data_sync_barier();
         if ((rxch->active_tail->flags_pktlen & EMAC_DSC_FLAG_EOQ) != 0)
           tms570_eth_hw_set_RX_HDP(nf_state, rxch->active_head);
         rxch->active_tail = curr_bd;
diff --git a/uLan/ports/os/rtems/arch/sys_arch.h b/uLan/ports/os/rtems/arch/sys_arch.h
index 6ec578b..eb85e3b 100644
--- a/uLan/ports/os/rtems/arch/sys_arch.h
+++ b/uLan/ports/os/rtems/arch/sys_arch.h
@@ -124,11 +124,6 @@ sys_arch_unprotect(sys_prot_t pval)
 {
   rtems_interrupt_enable(pval);
 }
-
-static inline void
-sys_arch_data_sync_barier(void){
-  _ARM_Data_synchronization_barrier();
-}
 #else
 sys_prot_t sys_arch_protect();
 
-- 
2.35.3