1*4882a593Smuzhiyun/* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun/* 3*4882a593Smuzhiyun * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI 4*4882a593Smuzhiyun * 5*4882a593Smuzhiyun * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com> 6*4882a593Smuzhiyun */ 7*4882a593Smuzhiyun#include <linux/linkage.h> 8*4882a593Smuzhiyun#include <linux/init.h> 9*4882a593Smuzhiyun#include <linux/pgtable.h> 10*4882a593Smuzhiyun#include <asm/assembler.h> 11*4882a593Smuzhiyun#include <asm/asm-offsets.h> 12*4882a593Smuzhiyun#include <asm/hwcap.h> 13*4882a593Smuzhiyun#include <asm/pgtable-hwdef.h> 14*4882a593Smuzhiyun#include <asm/ptrace.h> 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun#include "proc-macros.S" 17*4882a593Smuzhiyun 18*4882a593Smuzhiyun .text 19*4882a593Smuzhiyun/* 20*4882a593Smuzhiyun * cpu_arm9tdmi_proc_init() 21*4882a593Smuzhiyun * cpu_arm9tdmi_do_idle() 22*4882a593Smuzhiyun * cpu_arm9tdmi_dcache_clean_area() 23*4882a593Smuzhiyun * cpu_arm9tdmi_switch_mm() 24*4882a593Smuzhiyun * 25*4882a593Smuzhiyun * These are not required. 26*4882a593Smuzhiyun */ 27*4882a593SmuzhiyunENTRY(cpu_arm9tdmi_proc_init) 28*4882a593SmuzhiyunENTRY(cpu_arm9tdmi_do_idle) 29*4882a593SmuzhiyunENTRY(cpu_arm9tdmi_dcache_clean_area) 30*4882a593SmuzhiyunENTRY(cpu_arm9tdmi_switch_mm) 31*4882a593Smuzhiyun ret lr 32*4882a593Smuzhiyun 33*4882a593Smuzhiyun/* 34*4882a593Smuzhiyun * cpu_arm9tdmi_proc_fin() 35*4882a593Smuzhiyun */ 36*4882a593SmuzhiyunENTRY(cpu_arm9tdmi_proc_fin) 37*4882a593Smuzhiyun ret lr 38*4882a593Smuzhiyun 39*4882a593Smuzhiyun/* 40*4882a593Smuzhiyun * Function: cpu_arm9tdmi_reset(loc) 41*4882a593Smuzhiyun * Params : loc(r0) address to jump to 42*4882a593Smuzhiyun * Purpose : Sets up everything for a reset and jump to the location for soft reset. 43*4882a593Smuzhiyun */ 44*4882a593Smuzhiyun .pushsection .idmap.text, "ax" 45*4882a593SmuzhiyunENTRY(cpu_arm9tdmi_reset) 46*4882a593Smuzhiyun ret r0 47*4882a593SmuzhiyunENDPROC(cpu_arm9tdmi_reset) 48*4882a593Smuzhiyun .popsection 49*4882a593Smuzhiyun 50*4882a593Smuzhiyun .type __arm9tdmi_setup, #function 51*4882a593Smuzhiyun__arm9tdmi_setup: 52*4882a593Smuzhiyun ret lr 53*4882a593Smuzhiyun .size __arm9tdmi_setup, . - __arm9tdmi_setup 54*4882a593Smuzhiyun 55*4882a593Smuzhiyun __INITDATA 56*4882a593Smuzhiyun 57*4882a593Smuzhiyun @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) 58*4882a593Smuzhiyun define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun .section ".rodata" 61*4882a593Smuzhiyun 62*4882a593Smuzhiyun string cpu_arch_name, "armv4t" 63*4882a593Smuzhiyun string cpu_elf_name, "v4" 64*4882a593Smuzhiyun string cpu_arm9tdmi_name, "ARM9TDMI" 65*4882a593Smuzhiyun string cpu_p2001_name, "P2001" 66*4882a593Smuzhiyun 67*4882a593Smuzhiyun .align 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun .section ".proc.info.init", "a" 70*4882a593Smuzhiyun 71*4882a593Smuzhiyun.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req 72*4882a593Smuzhiyun .type __\name\()_proc_info, #object 73*4882a593Smuzhiyun__\name\()_proc_info: 74*4882a593Smuzhiyun .long \cpu_val 75*4882a593Smuzhiyun .long \cpu_mask 76*4882a593Smuzhiyun .long 0 77*4882a593Smuzhiyun .long 0 78*4882a593Smuzhiyun initfn __arm9tdmi_setup, __\name\()_proc_info 79*4882a593Smuzhiyun .long cpu_arch_name 80*4882a593Smuzhiyun .long cpu_elf_name 81*4882a593Smuzhiyun .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT 82*4882a593Smuzhiyun .long \cpu_name 83*4882a593Smuzhiyun .long arm9tdmi_processor_functions 84*4882a593Smuzhiyun .long 0 85*4882a593Smuzhiyun .long 0 86*4882a593Smuzhiyun .long v4_cache_fns 87*4882a593Smuzhiyun .size __\name\()_proc_info, . - __\name\()_proc_info 88*4882a593Smuzhiyun.endm 89*4882a593Smuzhiyun 90*4882a593Smuzhiyun arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name 91*4882a593Smuzhiyun arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name 92