1/* 2 * linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI 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_arm7tdmi_proc_init() 25 * cpu_arm7tdmi_do_idle() 26 * cpu_arm7tdmi_dcache_clean_area() 27 * cpu_arm7tdmi_switch_mm() 28 * 29 * These are not required. 30 */ 31ENTRY(cpu_arm7tdmi_proc_init) 32ENTRY(cpu_arm7tdmi_do_idle) 33ENTRY(cpu_arm7tdmi_dcache_clean_area) 34ENTRY(cpu_arm7tdmi_switch_mm) 35 ret lr 36 37/* 38 * cpu_arm7tdmi_proc_fin() 39 */ 40ENTRY(cpu_arm7tdmi_proc_fin) 41 ret lr 42 43/* 44 * Function: cpu_arm7tdmi_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_arm7tdmi_reset) 50 ret r0 51ENDPROC(cpu_arm7tdmi_reset) 52 .popsection 53 54 .type __arm7tdmi_setup, #function 55__arm7tdmi_setup: 56 ret lr 57 .size __arm7tdmi_setup, . - __arm7tdmi_setup 58 59 __INITDATA 60 61 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) 62 define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1 63 64 .section ".rodata" 65 66 string cpu_arch_name, "armv4t" 67 string cpu_elf_name, "v4" 68 string cpu_arm7tdmi_name, "ARM7TDMI" 69 string cpu_triscenda7_name, "Triscend-A7x" 70 string cpu_at91_name, "Atmel-AT91M40xxx" 71 string cpu_s3c3410_name, "Samsung-S3C3410" 72 string cpu_s3c44b0x_name, "Samsung-S3C44B0x" 73 string cpu_s3c4510b_name, "Samsung-S3C4510B" 74 string cpu_s3c4530_name, "Samsung-S3C4530" 75 string cpu_netarm_name, "NETARM" 76 77 .align 78 79 .section ".proc.info.init", #alloc 80 81.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \ 82 extra_hwcaps=0 83 .type __\name\()_proc_info, #object 84__\name\()_proc_info: 85 .long \cpu_val 86 .long \cpu_mask 87 .long 0 88 .long 0 89 initfn __arm7tdmi_setup, __\name\()_proc_info 90 .long cpu_arch_name 91 .long cpu_elf_name 92 .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps ) 93 .long \cpu_name 94 .long arm7tdmi_processor_functions 95 .long 0 96 .long 0 97 .long v4_cache_fns 98 .size __\name\()_proc_info, . - __\name\()_proc_info 99.endm 100 101 arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \ 102 cpu_arm7tdmi_name 103 arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \ 104 cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB 105 arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \ 106 cpu_at91_name, extra_hwcaps=HWCAP_THUMB 107 arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \ 108 cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB 109 arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \ 110 cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB 111 arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \ 112 cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB 113 arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \ 114 cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB 115