softpll-unify: header changes (no effect on rt_cpu.bin)

The commit is part of the effort in unifying softpll with wrpc-sw,
and later remove the duplicated code here in wr-switch-sw.

This introduces a fake wrc.h and renames timer.h to syscon.h.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

rt/dev/ad9516.c

@@ -8,7 +8,7 @@
 #include <stdint.h>
 
 #include "board.h"
-#include "timer.h"
+#include "syscon.h"
 #include "gpio.h"
 
 
@@ -264,4 +264,4 @@ int rts_debug_command(int command, int value)
 			}
 			break;
 	}
-}
\ No newline at end of file
+}

rt/dev/timer.c

 #include "board.h"
 
-#include "timer.h"
+#include "syscon.h"
 
 uint32_t timer_get_tics()
 {

rt/include/timer.h → rt/include/syscon.h

-#ifndef __TIMER_H
-#define __TIMER_H
+#ifndef __SYSCON_H
+#define __SYSCON_H
 
 #include "defs.h"
 

rt/include/wrc.h

+#ifndef __WRC_H
+#define __WRC_H
+
+#include "defs.h"
+#include "syscon.h"
+
+#define PPS_WIDTH (10 * 1000 * 1000 / 16) /* 10ms */
+
+#endif

rt/main.c

 #include "defs.h"
 #include "uart.h"
-#include "timer.h"
+#include "syscon.h"
 
 #include "softpll_ng.h"
 

rt/softpll/softpll_ng.c

@@ -2,6 +2,7 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include <wrc.h>
 #include "board.h"
 #include "trace.h"
 #include "hw/softpll_regs.h"
@@ -10,7 +11,6 @@
 #include "softpll_ng.h"
 
 #include "irq.h"
-#include "timer.h"
 
 volatile int irq_count = 0;
 
@@ -519,7 +519,6 @@ void spll_show_stats()
 		     softpll.ext.ld.locked, softpll.mpll.ld.locked,
 		     softpll.helper.pi.y, softpll.mpll.pi.y, softpll.ext.pi.y,
 		     softpll.delock_count, softpll.ext.sample_n);
-
 }
 
 int spll_shifter_busy(int channel)

rt/softpll/spll_common.h

@@ -14,6 +14,7 @@
 
 #include <stdint.h>
 #include <stdlib.h>
+#include <syscon.h>
 
 #include <hw/softpll_regs.h>
 #include <hw/pps_gen_regs.h>
@@ -30,6 +31,7 @@ extern int spll_n_chan_ref, spll_n_chan_out;
 extern volatile struct SPLL_WB *SPLL;
 extern volatile struct PPSG_WB *PPSG;
 
+
 /* PI regulator state */
 typedef struct {
 	int ki, kp;		/* integral and proportional gains (1<<PI_FRACBITS == 1.0f) */

rt/softpll/spll_external.c

@@ -13,8 +13,6 @@
 #include "spll_external.h"
 #include "spll_debug.h"
 
-#include "timer.h"
-
 #define BB_ERROR_BITS 16
 
 void external_init(volatile struct spll_external_state *s, int ext_ref,