M:Robe 500: Mostly complete USB driver, supports BULK mode currently and gets about 2 MB/s writes vs 1.1 MB/s on the OF. Mostly tested against Linux, preliminary testing in Windows appears to work. There is currently a bug in the attach process where it only works once per boot that needs to be fixed. There are a few other minor M:Robe 500 changes as well.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21208 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 12 insertions, 0 deletions

diff --git a/firmware/target/arm/tms320dm320/system-dm320.c b/firmware/target/arm/tms320dm320/system-dm320.c
index b8c9eee87f..8742f59691 100644
--- a/firmware/target/arm/tms320dm320/system-dm320.c
+++ b/firmware/target/arm/tms320dm320/system-dm320.c
@@ -28,6 +28,7 @@
 #include "spi.h"
 #ifdef CREATIVE_ZVx
 #include "dma-target.h"
+#include "usb-mr500.h"
 #endif
 
 #define default_interrupt(name) \
@@ -308,3 +309,14 @@ void set_cpu_frequency(long frequency)
 }
 #endif
 
+/* This function is pretty crude.  It is not acurate to a usec, but errors on
+ *  longer.
+ */
+void udelay(int usec) {
+    volatile int temp=usec*(175000/200);
+    
+    while(temp) {
+        temp--;
+    }
+}
+