diff --git a/include/asm-arm/arch-at91/at91_matrix.h b/include/asm-arm/arch-at91/at91_matrix.h
new file mode 100644
index 0000000..9b3c110
--- /dev/null
+++ b/include/asm-arm/arch-at91/at91_matrix.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (C) 2009 Jens Scharsig (js_at_ng@scharsoft.de)
+ *
+ * See file CREDITS for list of people who contributed to this
+ * project.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef AT91_MATRIX_H
+#define AT91_MATRIX_H
+
+#ifdef __ASSEMBLY__
+
+#if defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20)
+#define AT91_ASM_MATRIX_CSA0	(AT91_MATRIX_BASE + 0x11C)
+#elif defined(CONFIG_AT91SAM9261)
+#define AT91_ASM_MATRIX_CSA0	(AT91_MATRIX_BASE + 0x30)
+#elif defined(CONFIG_AT91SAM9263)
+#define AT91_ASM_MATRIX_CSA0	(AT91_MATRIX_BASE + 0x120)
+#elif defined(CONFIG_AT91SAM9G45)
+#define AT91_ASM_MATRIX_CSA0	(AT91_MATRIX_BASE + 0x128)
+#else
+#error AT91_ASM_MATRIX_CSA0 is not definied for current CPU
+#endif
+
+#define AT91_ASM_MATRIX_MCFG	AT91_MATRIX_BASE
+
+#else
+#if defined(CONFIG_AT91SAM9260) || defined(CONFIG_AT91SAM9G20)
+#define AT91_MATRIX_MASTERS	6
+#define AT91_MATRIX_SLAVES	5
+#elif defined(CONFIG_AT91SAM9261)
+#define AT91_MATRIX_MASTERS	1
+#define AT91_MATRIX_SLAVES	5
+#elif defined(CONFIG_AT91SAM9263)
+#define AT91_MATRIX_MASTERS	9
+#define AT91_MATRIX_SLAVES	7
+#elif defined(CONFIG_AT91SAM9G45)
+#define AT91_MATRIX_MASTERS	11
+#define AT91_MATRIX_SLAVES	8
+#else
+#error CPU not supported. Please update at91_matrix.h
+#endif
+
+typedef struct at91_priority {
+	u32	a;
+	u32	b;
+} at91_priority_t;
+
+typedef struct at91_matrix {
+	u32		mcfg[AT91_MATRIX_MASTERS];
+#if defined(CONFIG_AT91SAM9261)
+	u32		scfg[AT91_MATRIX_SLAVES];
+	u32		res61_1[3];
+	u32		tcr;
+	u32		res61_2[2];
+	u32		csa;
+	u32		pucr;
+	u32		res61_3[114];
+#else
+	u32		reserve1[16 - AT91_MATRIX_MASTERS];
+	u32		scfg[AT91_MATRIX_SLAVES];
+	u32		reserve2[16 - AT91_MATRIX_SLAVES];
+	at91_priority_t	pr[AT91_MATRIX_SLAVES];
+	u32		reserve3[32 - (2 * AT91_MATRIX_SLAVES)];
+	u32		mrcr;		/* 0x100 Master Remap Control */
+	u32		reserve4[3];
+#if	defined(CONFIG_AT91SAM9G45)
+	u32		ccr[52]		/* 0x110 - 0x1E0 Chip Configuration */
+	u32		womr;		/* 0x1E4 Write Protect Mode  */
+	u32		wpsr;		/* 0x1E8 Write Protect Status */
+	u32		resg45_1[10];
+#elif defined(CONFIG_AT91SAM9260)  || defined(CONFIG_AT91SAM9G20)
+	u32		res60_1[3];
+	u32		csa;
+	u32		res60_2[56];
+#elif defined(CONFIG_AT91SAM9263)
+	u32		res63_1;
+	u32		tcmr;
+	u32		res63_2[2];
+	u32		csa[2];
+	u32		res63_3[54];
+#else
+	u32		reserve5[60];
+#endif
+#endif
+} at91_matrix_t;
+
+#endif /* __ASSEMBLY__ */
+
+#define AT91_MATRIX_CSA_DBPUC		0x00000100
+#define AT91_MATRIX_CSA_VDDIOMSEL_1_8V	0x00000000
+#define AT91_MATRIX_CSA_VDDIOMSEL_3_3V	0x00010000
+
+#define AT91_MATRIX_CSA_EBI_CS1A	0x00000002
+#define AT91_MATRIX_CSA_EBI_CS3A	0x00000008
+#define AT91_MATRIX_CSA_EBI_CS4A	0x00000010
+#define AT91_MATRIX_CSA_EBI_CS5A	0x00000020
+
+#define AT91_MATRIX_CSA_EBI1_CS2A	0x00000008
+
+#endif