1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI 4 * 5 * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com> 6 */ 7 #include <linux/linkage.h> 8 #include <linux/init.h> 9 #include <linux/cfi_types.h> 10 #include <linux/pgtable.h> 11 #include <asm/assembler.h> 12 #include <asm/asm-offsets.h> 13 #include <asm/hwcap.h> 14 #include <asm/pgtable-hwdef.h> 15 #include <asm/ptrace.h> 16 17 #include "proc-macros.S" 18 19 .text 20 /* 21 * cpu_arm7tdmi_proc_init() 22 * cpu_arm7tdmi_do_idle() 23 * cpu_arm7tdmi_dcache_clean_area() 24 * cpu_arm7tdmi_switch_mm() 25 * 26 * These are not required. 27 */ 28 SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_init) 29 ret lr 30 SYM_FUNC_END(cpu_arm7tdmi_proc_init) 31 32 SYM_TYPED_FUNC_START(cpu_arm7tdmi_do_idle) 33 ret lr 34 SYM_FUNC_END(cpu_arm7tdmi_do_idle) 35 36 SYM_TYPED_FUNC_START(cpu_arm7tdmi_dcache_clean_area) 37 ret lr 38 SYM_FUNC_END(cpu_arm7tdmi_dcache_clean_area) 39 40 SYM_TYPED_FUNC_START(cpu_arm7tdmi_switch_mm) 41 ret lr 42 SYM_FUNC_END(cpu_arm7tdmi_switch_mm) 43 44 /* 45 * cpu_arm7tdmi_proc_fin() 46 */ 47 SYM_TYPED_FUNC_START(cpu_arm7tdmi_proc_fin) 48 ret lr 49 SYM_FUNC_END(cpu_arm7tdmi_proc_fin) 50 51 /* 52 * Function: cpu_arm7tdmi_reset(loc) 53 * Params : loc(r0) address to jump to 54 * Purpose : Sets up everything for a reset and jump to the location for soft reset. 55 */ 56 .pushsection .idmap.text, "ax" 57 SYM_TYPED_FUNC_START(cpu_arm7tdmi_reset) 58 ret r0 59 SYM_FUNC_END(cpu_arm7tdmi_reset) 60 .popsection 61 62 .type __arm7tdmi_setup, #function 63 __arm7tdmi_setup: 64 ret lr 65 .size __arm7tdmi_setup, . - __arm7tdmi_setup 66 67 __INITDATA 68 69 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) 70 define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1 71 72 .section ".rodata" 73 74 string cpu_arch_name, "armv4t" 75 string cpu_elf_name, "v4" 76 string cpu_arm7tdmi_name, "ARM7TDMI" 77 string cpu_triscenda7_name, "Triscend-A7x" 78 string cpu_at91_name, "Atmel-AT91M40xxx" 79 string cpu_s3c3410_name, "Samsung-S3C3410" 80 string cpu_s3c44b0x_name, "Samsung-S3C44B0x" 81 string cpu_s3c4510b_name, "Samsung-S3C4510B" 82 string cpu_s3c4530_name, "Samsung-S3C4530" 83 string cpu_netarm_name, "NETARM" 84 85 .align 86 87 .section ".proc.info.init", "a" 88 89 .macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \ 90 extra_hwcaps=0 91 .type __\name\()_proc_info, #object 92 __\name\()_proc_info: 93 .long \cpu_val 94 .long \cpu_mask 95 .long 0 96 .long 0 97 initfn __arm7tdmi_setup, __\name\()_proc_info 98 .long cpu_arch_name 99 .long cpu_elf_name 100 .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps ) 101 .long \cpu_name 102 .long arm7tdmi_processor_functions 103 .long 0 104 .long 0 105 .long v4_cache_fns 106 .size __\name\()_proc_info, . - __\name\()_proc_info 107 .endm 108 109 arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \ 110 cpu_arm7tdmi_name 111 arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \ 112 cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB 113 arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \ 114 cpu_at91_name, extra_hwcaps=HWCAP_THUMB 115 arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \ 116 cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB 117 arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \ 118 cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB 119 arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \ 120 cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB 121 arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \ 122 cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.