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>
111 lines
2.9 KiB
C
111 lines
2.9 KiB
C
#ifndef __ASM_AVR32_ELF_H
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#define __ASM_AVR32_ELF_H
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/* AVR32 relocation numbers */
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#define R_AVR32_NONE 0
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#define R_AVR32_32 1
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#define R_AVR32_16 2
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#define R_AVR32_8 3
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#define R_AVR32_32_PCREL 4
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#define R_AVR32_16_PCREL 5
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#define R_AVR32_8_PCREL 6
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#define R_AVR32_DIFF32 7
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#define R_AVR32_DIFF16 8
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#define R_AVR32_DIFF8 9
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#define R_AVR32_GOT32 10
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#define R_AVR32_GOT16 11
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#define R_AVR32_GOT8 12
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#define R_AVR32_21S 13
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#define R_AVR32_16U 14
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#define R_AVR32_16S 15
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#define R_AVR32_8S 16
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#define R_AVR32_8S_EXT 17
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#define R_AVR32_22H_PCREL 18
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#define R_AVR32_18W_PCREL 19
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#define R_AVR32_16B_PCREL 20
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#define R_AVR32_16N_PCREL 21
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#define R_AVR32_14UW_PCREL 22
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#define R_AVR32_11H_PCREL 23
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#define R_AVR32_10UW_PCREL 24
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#define R_AVR32_9H_PCREL 25
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#define R_AVR32_9UW_PCREL 26
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#define R_AVR32_HI16 27
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#define R_AVR32_LO16 28
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#define R_AVR32_GOTPC 29
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#define R_AVR32_GOTCALL 30
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#define R_AVR32_LDA_GOT 31
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#define R_AVR32_GOT21S 32
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#define R_AVR32_GOT18SW 33
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#define R_AVR32_GOT16S 34
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#define R_AVR32_GOT7UW 35
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#define R_AVR32_32_CPENT 36
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#define R_AVR32_CPCALL 37
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#define R_AVR32_16_CP 38
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#define R_AVR32_9W_CP 39
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#define R_AVR32_RELATIVE 40
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#define R_AVR32_GLOB_DAT 41
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#define R_AVR32_JMP_SLOT 42
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#define R_AVR32_ALIGN 43
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/*
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* ELF register definitions..
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*/
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#include <asm/ptrace.h>
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#include <asm/user.h>
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typedef unsigned long elf_greg_t;
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#define ELF_NGREG (sizeof (struct pt_regs) / sizeof (elf_greg_t))
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typedef elf_greg_t elf_gregset_t[ELF_NGREG];
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typedef struct user_fpu_struct elf_fpregset_t;
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/*
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* This is used to ensure we don't load something for the wrong architecture.
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*/
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#define elf_check_arch(x) ( (x)->e_machine == EM_AVR32 )
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/*
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* These are used to set parameters in the core dumps.
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*/
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#define ELF_CLASS ELFCLASS32
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#ifdef __LITTLE_ENDIAN__
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#define ELF_DATA ELFDATA2LSB
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#else
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#define ELF_DATA ELFDATA2MSB
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#endif
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#define ELF_ARCH EM_AVR32
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#define USE_ELF_CORE_DUMP
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#define ELF_EXEC_PAGESIZE 4096
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/* This is the location that an ET_DYN program is loaded if exec'ed. Typical
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use of this is to invoke "./ld.so someprog" to test out a new version of
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the loader. We need to make sure that it is out of the way of the program
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that it will "exec", and that there is sufficient room for the brk. */
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#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3)
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/* This yields a mask that user programs can use to figure out what
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instruction set this CPU supports. This could be done in user space,
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but it's not easy, and we've already done it here. */
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#define ELF_HWCAP (0)
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/* This yields a string that ld.so will use to load implementation
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specific libraries for optimization. This is more specific in
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intent than poking at uname or /proc/cpuinfo.
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For the moment, we have only optimizations for the Intel generations,
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but that could change... */
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#define ELF_PLATFORM (NULL)
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#ifdef __KERNEL__
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#define SET_PERSONALITY(ex, ibcs2) set_personality(PER_LINUX_32BIT)
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#endif
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#endif /* __ASM_AVR32_ELF_H */
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