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-rw-r--r--include/mpc5xxx.h9
1 files changed, 9 insertions, 0 deletions
diff --git a/include/mpc5xxx.h b/include/mpc5xxx.h
index 4218b05..02683e3 100644
--- a/include/mpc5xxx.h
+++ b/include/mpc5xxx.h
@@ -40,6 +40,15 @@
/* Exception offsets (PowerPC standard) */
#define EXC_OFF_SYS_RESET 0x0100
+/* useful macros for manipulating CSx_START/STOP */
+#if defined(CONFIG_MGT5100)
+#define START_REG(start) ((start) >> 15)
+#define STOP_REG(start, size) (((start) + (size) - 1) >> 15)
+#elif defined(CONFIG_MPC5200)
+#define START_REG(start) ((start) >> 16)
+#define STOP_REG(start, size) (((start) + (size) - 1) >> 16)
+#endif
+
/* Internal memory map */
#define MPC5XXX_CS0_START (CFG_MBAR + 0x0004)