1/* 2 * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI 3 * 4 * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com> 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License version 2 as 8 * published by the Free Software Foundation. 9 * 10 */ 11#include <linux/linkage.h> 12#include <linux/init.h> 13#include <asm/assembler.h> 14#include <asm/asm-offsets.h> 15#include <asm/hwcap.h> 16#include <asm/pgtable-hwdef.h> 17#include <asm/pgtable.h> 18#include <asm/ptrace.h> 19 20#include "proc-macros.S" 21 22 .text 23/* 24 * cpu_arm9tdmi_proc_init() 25 * cpu_arm9tdmi_do_idle() 26 * cpu_arm9tdmi_dcache_clean_area() 27 * cpu_arm9tdmi_switch_mm() 28 * 29 * These are not required. 30 */ 31ENTRY(cpu_arm9tdmi_proc_init) 32ENTRY(cpu_arm9tdmi_do_idle) 33ENTRY(cpu_arm9tdmi_dcache_clean_area) 34ENTRY(cpu_arm9tdmi_switch_mm) 35 mov pc, lr 36 37/* 38 * cpu_arm9tdmi_proc_fin() 39 */ 40ENTRY(cpu_arm9tdmi_proc_fin) 41 mov pc, lr 42 43/* 44 * Function: cpu_arm9tdmi_reset(loc) 45 * Params : loc(r0) address to jump to 46 * Purpose : Sets up everything for a reset and jump to the location for soft reset. 47 */ 48 .pushsection .idmap.text, "ax" 49ENTRY(cpu_arm9tdmi_reset) 50 mov pc, r0 51ENDPROC(cpu_arm9tdmi_reset) 52 .popsection 53 54 __CPUINIT 55 56 .type __arm9tdmi_setup, #function 57__arm9tdmi_setup: 58 mov pc, lr 59 .size __arm9tdmi_setup, . - __arm9tdmi_setup 60 61 __INITDATA 62 63 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) 64 define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1 65 66 .section ".rodata" 67 68 string cpu_arch_name, "armv4t" 69 string cpu_elf_name, "v4" 70 string cpu_arm9tdmi_name, "ARM9TDMI" 71 string cpu_p2001_name, "P2001" 72 73 .align 74 75 .section ".proc.info.init", #alloc, #execinstr 76 77.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req 78 .type __\name\()_proc_info, #object 79__\name\()_proc_info: 80 .long \cpu_val 81 .long \cpu_mask 82 .long 0 83 .long 0 84 b __arm9tdmi_setup 85 .long cpu_arch_name 86 .long cpu_elf_name 87 .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT 88 .long \cpu_name 89 .long arm9tdmi_processor_functions 90 .long 0 91 .long 0 92 .long v4_cache_fns 93 .size __\name\()_proc_info, . - __\name\()_proc_info 94.endm 95 96 arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name 97 arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name 98