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review.shift-gmbh.com / SHIFTPHONES / mainline / linux / 711be0312df4d350fb5bf1671c132cccae5aaf9a / . / arch / arm / mm / proc-arm7tdmi.S
blob: 52b66cf0259e3ffdcc79208723937f06464f375c [file] [log] [blame]
Thomas Gleixnerd2912cb2019-06-04 10:11:33 +0200[diff] [blame]1/* SPDX-License-Identifier: GPL-2.0-only */
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]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>
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]6 */
7#include <linux/linkage.h>
8#include <linux/init.h>
9#include <asm/assembler.h>
10#include <asm/asm-offsets.h>
Russell King5ec94072008-09-07 19:15:31 +0100[diff] [blame]11#include <asm/hwcap.h>
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]12#include <asm/pgtable-hwdef.h>
13#include <asm/pgtable.h>
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]14#include <asm/ptrace.h>
15
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]16#include "proc-macros.S"
17
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]18 .text
19/*
20 * cpu_arm7tdmi_proc_init()
21 * cpu_arm7tdmi_do_idle()
22 * cpu_arm7tdmi_dcache_clean_area()
23 * cpu_arm7tdmi_switch_mm()
24 *
25 * These are not required.
26 */
27ENTRY(cpu_arm7tdmi_proc_init)
28ENTRY(cpu_arm7tdmi_do_idle)
29ENTRY(cpu_arm7tdmi_dcache_clean_area)
30ENTRY(cpu_arm7tdmi_switch_mm)
Russell King6ebbf2c2014-06-30 16:29:12 +0100[diff] [blame]31 ret lr
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]32
33/*
34 * cpu_arm7tdmi_proc_fin()
35 */
36ENTRY(cpu_arm7tdmi_proc_fin)
Russell King6ebbf2c2014-06-30 16:29:12 +0100[diff] [blame]37 ret lr
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]38
39/*
40 * Function: cpu_arm7tdmi_reset(loc)
41 * Params : loc(r0) address to jump to
42 * Purpose : Sets up everything for a reset and jump to the location for soft reset.
43 */
Will Deacon1a4baaf2011-11-15 13:25:04 +0000[diff] [blame]44 .pushsection .idmap.text, "ax"
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]45ENTRY(cpu_arm7tdmi_reset)
Russell King6ebbf2c2014-06-30 16:29:12 +0100[diff] [blame]46 ret r0
Will Deacon1a4baaf2011-11-15 13:25:04 +0000[diff] [blame]47ENDPROC(cpu_arm7tdmi_reset)
48 .popsection
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]49
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]50 .type __arm7tdmi_setup, #function
51__arm7tdmi_setup:
Russell King6ebbf2c2014-06-30 16:29:12 +0100[diff] [blame]52 ret lr
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]53 .size __arm7tdmi_setup, . - __arm7tdmi_setup
54
55 __INITDATA
56
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]57 @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
58 define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]59
60 .section ".rodata"
61
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]62 string cpu_arch_name, "armv4t"
63 string cpu_elf_name, "v4"
64 string cpu_arm7tdmi_name, "ARM7TDMI"
65 string cpu_triscenda7_name, "Triscend-A7x"
66 string cpu_at91_name, "Atmel-AT91M40xxx"
67 string cpu_s3c3410_name, "Samsung-S3C3410"
68 string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
69 string cpu_s3c4510b_name, "Samsung-S3C4510B"
70 string cpu_s3c4530_name, "Samsung-S3C4530"
71 string cpu_netarm_name, "NETARM"
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]72
73 .align
74
Nick Desaulniers790756c2019-11-04 19:31:45 +0100[diff] [blame]75 .section ".proc.info.init", "a"
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]76
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]77.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
78 extra_hwcaps=0
79 .type __\name\()_proc_info, #object
80__\name\()_proc_info:
81 .long \cpu_val
82 .long \cpu_mask
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]83 .long 0
84 .long 0
Ard Biesheuvelbf357062015-03-18 07:29:32 +0100[diff] [blame]85 initfn __arm7tdmi_setup, __\name\()_proc_info
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]86 .long cpu_arch_name
87 .long cpu_elf_name
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]88 .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
89 .long \cpu_name
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]90 .long arm7tdmi_processor_functions
91 .long 0
92 .long 0
93 .long v4_cache_fns
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]94 .size __\name\()_proc_info, . - __\name\()_proc_info
95.endm
Hyok S. Choi07e0da72006-09-26 17:37:36 +0900[diff] [blame]96
Dave Martinfd10e272011-06-23 17:19:26 +0100[diff] [blame]97 arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
98 cpu_arm7tdmi_name
99 arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
100 cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
101 arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
102 cpu_at91_name, extra_hwcaps=HWCAP_THUMB
103 arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
104 cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
105 arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
106 cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
107 arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
108 cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
109 arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
110 cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB