Blackfin: bfin_spi.h: add MMR peripheral layout
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/include/asm/bfin5xx_spi.h b/arch/blackfin/include/asm/bfin5xx_spi.h
index 4223cf0..0b5136e 100644
--- a/arch/blackfin/include/asm/bfin5xx_spi.h
+++ b/arch/blackfin/include/asm/bfin5xx_spi.h
@@ -41,6 +41,25 @@
#define BIT_STU_SENDOVER 0x0001
#define BIT_STU_RECVFULL 0x0020
+/*
+ * 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 spi registers layout
+ */
+struct bfin_spi_regs {
+ __BFP(ctl);
+ __BFP(flg);
+ __BFP(stat);
+ __BFP(tdbr);
+ __BFP(rdbr);
+ __BFP(baud);
+ __BFP(shadow);
+};
+
#define MAX_CTRL_CS 8 /* cs in spi controller */
/* device.platform_data for SSP controller devices */