TCC78x: Implement the user timer, rework some of the timer register #defines, and use udelay() instead of the hacky sleep_ms() in the D2 LCD driver. Doom works now.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20585 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 4 insertions, 2 deletions

diff --git a/firmware/target/arm/tcc780x/system-target.h b/firmware/target/arm/tcc780x/system-target.h
index 0802bb92e0..6e2e7be980 100644
--- a/firmware/target/arm/tcc780x/system-target.h
+++ b/firmware/target/arm/tcc780x/system-target.h
@@ -35,10 +35,12 @@
 #define outw(a,b) (*(volatile unsigned short *) (b) = (a))
 
 /* TC32 is configured to 1MHz in clock_init() */
+#define USEC_TIMER  TC32MCNT
+
 static inline void udelay(unsigned usecs)
 {
-    unsigned stop = TC32MCNT + usecs;
-    while (TIME_BEFORE(TC32MCNT, stop));
+    unsigned stop = USEC_TIMER + usecs;
+    while (TIME_BEFORE(USEC_TIMER, stop));
 }
 
 #endif /* SYSTEM_TARGET_H */