aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-avr32/addrspace.h
diff options
context:
space:
mode:
authorHaavard Skinnemoen <hskinnemoen@atmel.com>2006-09-26 02:32:13 -0400
committerLinus Torvalds <torvalds@g5.osdl.org>2006-09-26 11:48:54 -0400
commit5f97f7f9400de47ae837170bb274e90ad3934386 (patch)
tree514451e6dc6b46253293a00035d375e77b1c65ed /include/asm-avr32/addrspace.h
parent53e62d3aaa60590d4a69b4e07c29f448b5151047 (diff)
[PATCH] avr32 architecture
This adds support for the Atmel AVR32 architecture as well as the AT32AP7000 CPU and the AT32STK1000 development board. AVR32 is a new high-performance 32-bit RISC microprocessor core, designed for cost-sensitive embedded applications, with particular emphasis on low power consumption and high code density. The AVR32 architecture is not binary compatible with earlier 8-bit AVR architectures. The AVR32 architecture, including the instruction set, is described by the AVR32 Architecture Manual, available from http://www.atmel.com/dyn/resources/prod_documents/doc32000.pdf The Atmel AT32AP7000 is the first CPU implementing the AVR32 architecture. It features a 7-stage pipeline, 16KB instruction and data caches and a full Memory Management Unit. It also comes with a large set of integrated peripherals, many of which are shared with the AT91 ARM-based controllers from Atmel. Full data sheet is available from http://www.atmel.com/dyn/resources/prod_documents/doc32003.pdf while the CPU core implementation including caches and MMU is documented by the AVR32 AP Technical Reference, available from http://www.atmel.com/dyn/resources/prod_documents/doc32001.pdf Information about the AT32STK1000 development board can be found at http://www.atmel.com/dyn/products/tools_card.asp?tool_id=3918 including a BSP CD image with an earlier version of this patch, development tools (binaries and source/patches) and a root filesystem image suitable for booting from SD card. Alternatively, there's a preliminary "getting started" guide available at http://avr32linux.org/twiki/bin/view/Main/GettingStarted which provides links to the sources and patches you will need in order to set up a cross-compiling environment for avr32-linux. This patch, as well as the other patches included with the BSP and the toolchain patches, is actively supported by Atmel Corporation. [dmccr@us.ibm.com: Fix more pxx_page macro locations] [bunk@stusta.de: fix `make defconfig'] Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Dave McCracken <dmccr@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/asm-avr32/addrspace.h')
-rw-r--r--include/asm-avr32/addrspace.h43
1 files changed, 43 insertions, 0 deletions
diff --git a/include/asm-avr32/addrspace.h b/include/asm-avr32/addrspace.h
new file mode 100644
index 000000000000..366794858ec7
--- /dev/null
+++ b/include/asm-avr32/addrspace.h
@@ -0,0 +1,43 @@
1/*
2 * Defitions for the address spaces of the AVR32 CPUs. Heavily based on
3 * include/asm-sh/addrspace.h
4 *
5 * Copyright (C) 2004-2006 Atmel Corporation
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11#ifndef __ASM_AVR32_ADDRSPACE_H
12#define __ASM_AVR32_ADDRSPACE_H
13
14#ifdef CONFIG_MMU
15
16/* Memory segments when segmentation is enabled */
17#define P0SEG 0x00000000
18#define P1SEG 0x80000000
19#define P2SEG 0xa0000000
20#define P3SEG 0xc0000000
21#define P4SEG 0xe0000000
22
23/* Returns the privileged segment base of a given address */
24#define PXSEG(a) (((unsigned long)(a)) & 0xe0000000)
25
26/* Returns the physical address of a PnSEG (n=1,2) address */
27#define PHYSADDR(a) (((unsigned long)(a)) & 0x1fffffff)
28
29/*
30 * Map an address to a certain privileged segment
31 */
32#define P1SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
33 | P1SEG))
34#define P2SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
35 | P2SEG))
36#define P3SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
37 | P3SEG))
38#define P4SEGADDR(a) ((__typeof__(a))(((unsigned long)(a) & 0x1fffffff) \
39 | P4SEG))
40
41#endif /* CONFIG_MMU */
42
43#endif /* __ASM_AVR32_ADDRSPACE_H */