mirror of
https://github.com/torvalds/linux.git
synced 2024-12-25 12:21:37 +00:00
f6b0fa02e8
This adds core support for saving and restoring CPU coprocessor registers for suspend/resume support. This contains support for suspend with ARM920, ARM926, SA11x0, PXA25x, PXA27x, PXA3xx, V6 and V7 CPUs. Tested on Assabet and Tegra 2. Tested-by: Colin Cross <ccross@android.com> Tested-by: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
137 lines
3.0 KiB
ArmAsm
137 lines
3.0 KiB
ArmAsm
/*
|
|
* linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI
|
|
*
|
|
* Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
#include <linux/linkage.h>
|
|
#include <linux/init.h>
|
|
#include <asm/assembler.h>
|
|
#include <asm/asm-offsets.h>
|
|
#include <asm/hwcap.h>
|
|
#include <asm/pgtable-hwdef.h>
|
|
#include <asm/pgtable.h>
|
|
#include <asm/ptrace.h>
|
|
|
|
.text
|
|
/*
|
|
* cpu_arm9tdmi_proc_init()
|
|
* cpu_arm9tdmi_do_idle()
|
|
* cpu_arm9tdmi_dcache_clean_area()
|
|
* cpu_arm9tdmi_switch_mm()
|
|
*
|
|
* These are not required.
|
|
*/
|
|
ENTRY(cpu_arm9tdmi_proc_init)
|
|
ENTRY(cpu_arm9tdmi_do_idle)
|
|
ENTRY(cpu_arm9tdmi_dcache_clean_area)
|
|
ENTRY(cpu_arm9tdmi_switch_mm)
|
|
mov pc, lr
|
|
|
|
/*
|
|
* cpu_arm9tdmi_proc_fin()
|
|
*/
|
|
ENTRY(cpu_arm9tdmi_proc_fin)
|
|
mov pc, lr
|
|
|
|
/*
|
|
* Function: cpu_arm9tdmi_reset(loc)
|
|
* Params : loc(r0) address to jump to
|
|
* Purpose : Sets up everything for a reset and jump to the location for soft reset.
|
|
*/
|
|
ENTRY(cpu_arm9tdmi_reset)
|
|
mov pc, r0
|
|
|
|
__CPUINIT
|
|
|
|
.type __arm9tdmi_setup, #function
|
|
__arm9tdmi_setup:
|
|
mov pc, lr
|
|
.size __arm9tdmi_setup, . - __arm9tdmi_setup
|
|
|
|
__INITDATA
|
|
|
|
/*
|
|
* Purpose : Function pointers used to access above functions - all calls
|
|
* come through these
|
|
*/
|
|
.type arm9tdmi_processor_functions, #object
|
|
ENTRY(arm9tdmi_processor_functions)
|
|
.word nommu_early_abort
|
|
.word legacy_pabort
|
|
.word cpu_arm9tdmi_proc_init
|
|
.word cpu_arm9tdmi_proc_fin
|
|
.word cpu_arm9tdmi_reset
|
|
.word cpu_arm9tdmi_do_idle
|
|
.word cpu_arm9tdmi_dcache_clean_area
|
|
.word cpu_arm9tdmi_switch_mm
|
|
.word 0 @ cpu_*_set_pte
|
|
.word 0
|
|
.word 0
|
|
.word 0
|
|
.size arm9tdmi_processor_functions, . - arm9tdmi_processor_functions
|
|
|
|
.section ".rodata"
|
|
|
|
.type cpu_arch_name, #object
|
|
cpu_arch_name:
|
|
.asciz "armv4t"
|
|
.size cpu_arch_name, . - cpu_arch_name
|
|
|
|
.type cpu_elf_name, #object
|
|
cpu_elf_name:
|
|
.asciz "v4"
|
|
.size cpu_elf_name, . - cpu_elf_name
|
|
|
|
.type cpu_arm9tdmi_name, #object
|
|
cpu_arm9tdmi_name:
|
|
.asciz "ARM9TDMI"
|
|
.size cpu_arm9tdmi_name, . - cpu_arm9tdmi_name
|
|
|
|
.type cpu_p2001_name, #object
|
|
cpu_p2001_name:
|
|
.asciz "P2001"
|
|
.size cpu_p2001_name, . - cpu_p2001_name
|
|
|
|
.align
|
|
|
|
.section ".proc.info.init", #alloc, #execinstr
|
|
|
|
.type __arm9tdmi_proc_info, #object
|
|
__arm9tdmi_proc_info:
|
|
.long 0x41009900
|
|
.long 0xfff8ff00
|
|
.long 0
|
|
.long 0
|
|
b __arm9tdmi_setup
|
|
.long cpu_arch_name
|
|
.long cpu_elf_name
|
|
.long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
|
|
.long cpu_arm9tdmi_name
|
|
.long arm9tdmi_processor_functions
|
|
.long 0
|
|
.long 0
|
|
.long v4_cache_fns
|
|
.size __arm9tdmi_proc_info, . - __arm9dmi_proc_info
|
|
|
|
.type __p2001_proc_info, #object
|
|
__p2001_proc_info:
|
|
.long 0x41029000
|
|
.long 0xffffffff
|
|
.long 0
|
|
.long 0
|
|
b __arm9tdmi_setup
|
|
.long cpu_arch_name
|
|
.long cpu_elf_name
|
|
.long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
|
|
.long cpu_p2001_name
|
|
.long arm9tdmi_processor_functions
|
|
.long 0
|
|
.long 0
|
|
.long v4_cache_fns
|
|
.size __p2001_proc_info, . - __p2001_proc_info
|