mirror of
https://github.com/torvalds/linux.git
synced 2024-11-25 05:32:00 +00:00
5f97f7f940
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>
30 lines
641 B
C
30 lines
641 B
C
#ifndef __ASM_AVR32_CACHE_H
|
|
#define __ASM_AVR32_CACHE_H
|
|
|
|
#define L1_CACHE_SHIFT 5
|
|
#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT)
|
|
|
|
#ifndef __ASSEMBLER__
|
|
struct cache_info {
|
|
unsigned int ways;
|
|
unsigned int sets;
|
|
unsigned int linesz;
|
|
};
|
|
#endif /* __ASSEMBLER */
|
|
|
|
/* Cache operation constants */
|
|
#define ICACHE_FLUSH 0x00
|
|
#define ICACHE_INVALIDATE 0x01
|
|
#define ICACHE_LOCK 0x02
|
|
#define ICACHE_UNLOCK 0x03
|
|
#define ICACHE_PREFETCH 0x04
|
|
|
|
#define DCACHE_FLUSH 0x08
|
|
#define DCACHE_LOCK 0x09
|
|
#define DCACHE_UNLOCK 0x0a
|
|
#define DCACHE_INVALIDATE 0x0b
|
|
#define DCACHE_CLEAN 0x0c
|
|
#define DCACHE_CLEAN_INVAL 0x0d
|
|
|
|
#endif /* __ASM_AVR32_CACHE_H */
|