1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/at91_dbu.h b/arch/arm/mach-at91/include/mach/at91_dbu.h
new file mode 100644
index 0000000000..7346fc0569
--- /dev/null
+++ b/arch/arm/mach-at91/include/mach/at91_dbu.h
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2010
+ * Reinhard Meyer, reinhard.meyer@emk-elektronik.de
+ *
+ * Debug Unit
+ * Based on AT91SAM9XE datasheet
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
+
+#ifndef AT91_DBU_H
+#define AT91_DBU_H
+
+#ifndef __ASSEMBLY__
+
+typedef struct at91_dbu {
+	u32	cr;	/* Control Register WO */
+	u32	mr;	/* Mode Register  RW */
+	u32	ier;	/* Interrupt Enable Register WO */
+	u32	idr;	/* Interrupt Disable Register WO */
+	u32	imr;	/* Interrupt Mask Register RO */
+	u32	sr;	/* Status Register RO */
+	u32	rhr;	/* Receive Holding Register RO */
+	u32	thr;	/* Transmit Holding Register WO */
+	u32	brgr;	/* Baud Rate Generator Register RW */
+	u32	res1[7];/* 0x0024 - 0x003C Reserved */
+	u32	cidr;	/* Chip ID Register RO */
+	u32	exid;	/* Chip ID Extension Register RO */
+	u32	fnr;	/* Force NTRST Register RW */
+} at91_dbu_t;
+
+#endif /* __ASSEMBLY__ */
+
+#define AT91_DBU_CID_ARCH_MASK		0x0ff00000
+#define AT91_DBU_CID_ARCH_9xx		0x01900000
+#define AT91_DBU_CID_ARCH_9XExx	0x02900000
+
+#define AT91_DBU_CIDR_MASK		0x1f
+#define AT91_DBU_CIDR			0x40
+#define AT91_DBU_EXID			0x44
+
+#endif