portability updates

[openocd.git] / src / target / xscale.h

diff --git a/src/target/xscale.h b/src/target/xscale.h
index 6cfe76e65b2131a8cb24e1ee5321dd7b4cf7dfda..9d92550a6c7b84a5a5bb1dd71de6900a6941c5c7 100644 (file)
--- a/src/target/xscale.h
+++ b/src/target/xscale.h
@@ -29,18 +29,13 @@
 
 #define        XSCALE_COMMON_MAGIC 0x58534341
 
-typedef struct xscale_jtag_s
-{
-       /* position in JTAG scan chain */
-       jtag_tap_t *tap;
-
-       /* IR length and instructions */
-       int ir_length;
-       uint32_t dbgrx;
-       uint32_t dbgtx;
-       uint32_t ldic;
-       uint32_t dcsr;
-} xscale_jtag_t;
+/* These four JTAG instructions are architecturally defined.
+ * Lengths are core-specific; originally 5 bits, later 7.
+ */
+#define XSCALE_DBGRX   0x02
+#define XSCALE_DBGTX   0x10
+#define XSCALE_LDIC    0x07
+#define XSCALE_SELDCSR 0x09
 
 enum xscale_debug_reason
 {
@@ -90,11 +85,6 @@ typedef struct xscale_common_s
        /* XScale registers (CP15, DBG) */
        reg_cache_t *reg_cache;
 
-       /* pxa250, pxa255, pxa27x, ixp42x, ... */
-       char *variant;
-
-       xscale_jtag_t jtag_info;
-
        /* current state of the debug handler */
        int handler_installed;
        int handler_running;
@@ -180,4 +170,10 @@ enum
 
 #define ERROR_XSCALE_NO_TRACE_DATA     (-1500)
 
+/* This XScale "debug handler" is loaded into the processor's
+ * mini-ICache, which is 2K of code writable only via JTAG.
+ */
+extern const uint8_t xscale_debug_handler[];
+extern const uint32_t xscale_debug_handler_size;
+
 #endif /* XSCALE_H */