Blackfin: gptimers: add structure for hardware register layout

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

1 files changed, 18 insertions, 0 deletions

diff --git a/arch/blackfin/include/asm/gptimers.h b/arch/blackfin/include/asm/gptimers.h
index c722acdda0d3..38657dac1235 100644
--- a/arch/blackfin/include/asm/gptimers.h
+++ b/arch/blackfin/include/asm/gptimers.h
@@ -193,4 +193,22 @@ uint16_t get_enabled_gptimers(void);
 uint32_t get_gptimer_status(unsigned int group);
 void     set_gptimer_status(unsigned int group, uint32_t value);
 
+/*
+ * All Blackfin system MMRs are padded to 32bits even if the register
+ * itself is only 16bits.  So use a helper macro to streamline this.
+ */
+#define __BFP(m) u16 m; u16 __pad_##m
+
+/*
+ * bfin timer registers layout
+ */
+struct bfin_gptimer_regs {
+        __BFP(config);
+        u32 counter;
+        u32 period;
+        u32 width;
+};
+
+#undef __BFP
+
 #endif