Nios II - Add EPCS Controller bootrom work-around

-When booting from an epcs controller, the epcs bootrom may leave the
  slave select in an asserted state causing soft reset hang. This
  patch ensures slave select is negated at reset.
  Patch by Scott McNutt, 08 Jun 2006

lib_nios2/board.c

@@ -31,6 +31,9 @@
 #ifdef CONFIG_STATUS_LED
 #include <status_led.h>
 #endif
+#if defined(CFG_NIOS_EPCSBASE)
+#include <nios2-epcs.h>
+#endif
 
 DECLARE_GLOBAL_DATA_PTR;
 
@@ -93,6 +96,9 @@ init_fnc_t *init_sequence[] = {
 #if defined(CONFIG_BOARD_EARLY_INIT_F)
 	board_early_init_f,	/* Call board-specific init code early.*/
 #endif
+#if defined(CFG_NIOS_EPCSBASE)
+	epcs_reset,
+#endif
 
 	env_init,
 	serial_init,
@@ -165,6 +171,10 @@ void board_init (void)
 	WATCHDOG_RESET ();
 	interrupt_init ();
 
+#if defined(CONFIG_BOARD_LATE_INIT)
+	board_late_init ();
+#endif
+
 	/* main_loop */
 	for (;;) {
 		WATCHDOG_RESET ();