testing minimal program

[rpikern] / src / timer.h

diff --git a/src/timer.h b/src/timer.h
new file mode 100644 (file)
index 0000000..065fdcf
--- /dev/null
+++ b/src/timer.h
@@ -0,0 +1,30 @@
+#ifndef TIMER_H_
+#define TIMER_H_
+
+#include "config.h"
+
+#define TM_BASE        (IO_BASE | 0xb000)
+
+#define TM_REG(x)      (*(volatile uint32_t*)(TIMER_BASE | (x)))
+#define TM_LOAD                TM_REG(0x400)
+#define TM_VALUE       TM_REG(0x404)
+#define TM_CTL         TM_REG(0x408)
+#define TM_ICLR                TM_REG(0x40c)
+#define TM_IRAW                TM_REG(0x410)
+#define TM_IMSK                TM_REG(0x414)
+#define TM_RELOAD      TM_REG(0x418)
+#define TM_PREDIV      TM_REG(0x41c)
+#define TM_COUNT       TM_REG(0x420)
+
+#define TMCTL_23BIT            0x000002
+#define TMCTL_DIV16            0x000004
+#define TMCTL_DIV256   0x000008
+#define TMCTL_DIV1             0x00000c
+#define TMCTL_IEN              0x000020
+#define TMCTL_EN               0x000080
+#define TMCTL_DBGHALT  0x000100
+#define TMCTL_CNTEN            0x000200
+
+#define TMCTL_PRESCALER(x)     (((uint32_t)(x) & 0xff) << 16)
+
+#endif /* TIMER_H_ */