3 files changed, 6 insertions, 0 deletions
diff --git a/c/src/libchip/serial/mc68681.c b/c/src/libchip/serial/mc68681.c
index 1d9027d9aa..fd1d4d57a6 100644
--- a/c/src/libchip/serial/mc68681.c
+++ b/c/src/libchip/serial/mc68681.c
@@ -371,9 +371,11 @@ MC68681_STATIC void mc68681_write_polled(
      * Yield while we wait
      */
 
+#if 0
      if(_System_state_Is_up(_System_state_Get())) {
        rtems_task_wake_after(RTEMS_YIELD_PROCESSOR);
      }
+#endif
      ucLineStatus = (*getReg)(pMC68681_port, MC68681_STATUS);
      if(!--iTimeout) {
        break;
diff --git a/c/src/libchip/serial/ns16550.c b/c/src/libchip/serial/ns16550.c
index d5ac72004f..e35771dfb4 100644
--- a/c/src/libchip/serial/ns16550.c
+++ b/c/src/libchip/serial/ns16550.c
@@ -201,9 +201,11 @@ NS16550_STATIC void ns16550_write_polled(
     /*
      * Yield while we wait
      */
+#if 0
      if(_System_state_Is_up(_System_state_Get())) {
        rtems_task_wake_after(RTEMS_YIELD_PROCESSOR);
      }
+#endif
      ucLineStatus = (*getReg)(pNS16550, NS16550_LINE_STATUS);
      if(!--iTimeout) {
        break;
diff --git a/c/src/libchip/serial/z85c30.c b/c/src/libchip/serial/z85c30.c
index 4f688e8787..8c975ff8e4 100644
--- a/c/src/libchip/serial/z85c30.c
+++ b/c/src/libchip/serial/z85c30.c
@@ -871,9 +871,11 @@ Z85C30_STATIC void z85c30_write_polled(
     /*
      * Yield while we wait
      */
+#if 0
     if (_System_state_Is_up(_System_state_Get())) {
       rtems_task_wake_after(RTEMS_YIELD_PROCESSOR);
     }
+#endif
     z85c30_status = (*getReg)(ulCtrlPort, SCC_WR0_SEL_RD0);
   }