Add AVR32 architecture support

Patch by Haavard Skinnemoen, 6 Sep 2006 16:23:02 +0200

This patch adds common infrastructure code for the Atmel AVR32
architecture. See doc/README.AVR32 for details.

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>

1 files changed, 59 insertions, 0 deletions

diff --git a/include/asm-avr32/global_data.h b/include/asm-avr32/global_data.h
new file mode 100644
index 0000000..01d836c
--- /dev/null
+++ b/include/asm-avr32/global_data.h
@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * 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 __ASM_GLOBAL_DATA_H__
+#define __ASM_GLOBAL_DATA_H__
+
+/*
+ * The following data structure is placed in some memory wich is
+ * available very early after boot (like DPRAM on MPC8xx/MPC82xx, or
+ * some locked parts of the data cache) to allow for a minimum set of
+ * global variables during system initialization (until we have set
+ * up the memory controller so that we can use RAM).
+ *
+ * Keep it *SMALL* and remember to set CFG_GBL_DATA_SIZE > sizeof(gd_t)
+ */
+
+typedef	struct	global_data {
+	bd_t		*bd;
+	unsigned long	flags;
+	const struct device	*console_uart;
+	const struct device	*sm;
+	unsigned long	baudrate;
+	unsigned long	sdram_size;
+	unsigned long	have_console;	/* serial_init() was called */
+	unsigned long	reloc_off;	/* Relocation Offset */
+	unsigned long	env_addr;	/* Address of env struct */
+	unsigned long	env_valid;	/* Checksum of env valid? */
+	unsigned long	cpu_hz;		/* cpu core clock frequency */
+	void		**jt;		/* jump table */
+} gd_t;
+
+/*
+ * Global Data Flags
+ */
+#define GD_FLG_RELOC	0x00001		/* Code was relocated to RAM	 */
+#define GD_FLG_DEVINIT	0x00002		/* Devices have been initialized */
+#define GD_FLG_SILENT	0x00004		/* Silent mode			 */
+
+#define DECLARE_GLOBAL_DATA_PTR register gd_t *gd asm("r5")
+
+#endif /* __ASM_GLOBAL_DATA_H__ */