From: Mike Frysinger <vapier@gentoo.org>
Date: Fri, 22 Oct 2010 05:11:21 +0000 (+0000)
Subject: Blackfin: bfin_twi.h: start a common TWI header
X-Git-Tag: v2.6.37-rc1~116^2~4
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=61c16b5c7414b6d0511dc384e0ea994e250e6339;p=~emulex%2Finfiniband.git

Blackfin: bfin_twi.h: start a common TWI header

Start one place for TWI definitions.

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

diff --git a/arch/blackfin/include/asm/bfin_twi.h b/arch/blackfin/include/asm/bfin_twi.h
new file mode 100644
index 00000000000..cc155e14e55
--- /dev/null
+++ b/arch/blackfin/include/asm/bfin_twi.h
@@ -0,0 +1,43 @@
+/*
+ * bfin_twi.h - interface to Blackfin TWIs
+ *
+ * Copyright 2005-2010 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2 or later.
+ */
+
+#ifndef __ASM_BFIN_TWI_H__
+#define __ASM_BFIN_TWI_H__
+
+#include <linux/types.h>
+
+/*
+ * 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 twi registers layout
+ */
+struct bfin_twi_regs {
+	__BFP(clkdiv);
+	__BFP(control);
+	__BFP(slave_ctl);
+	__BFP(slave_stat);
+	__BFP(slave_addr);
+	__BFP(master_ctl);
+	__BFP(master_stat);
+	__BFP(master_addr);
+	__BFP(int_stat);
+	__BFP(int_mask);
+	__BFP(fifo_ctl);
+	__BFP(fifo_stat);
+	u32 __pad[20];
+	__BFP(xmt_data8);
+	__BFP(xmt_data16);
+	__BFP(rcv_data8);
+	__BFP(rcv_data16);
+};
+
+#endif