projects / mirror_ubuntu-jammy-kernel.git / blame
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| d2912cb1 | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
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2 | /* |
| 3 | * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI | |
| 4 | * | |
| 5 | * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com> | |
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6 | */ |
| 7 | #include <linux/linkage.h> | |
| 8 | #include <linux/init.h> | |
| 9 | #include <asm/assembler.h> | |
| 10 | #include <asm/asm-offsets.h> | |
| 5ec9407d | 11 | #include <asm/hwcap.h> |
| 43f5f014 | 12 | #include <asm/pgtable-hwdef.h> |
| ca5999fd | 13 | #include <linux/pgtable.h> |
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14 | #include <asm/ptrace.h> |
| 15 | ||
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16 | #include "proc-macros.S" |
| 17 | ||
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18 | .text |
| 19 | /* | |
| 20 | * cpu_arm9tdmi_proc_init() | |
| 21 | * cpu_arm9tdmi_do_idle() | |
| 22 | * cpu_arm9tdmi_dcache_clean_area() | |
| 23 | * cpu_arm9tdmi_switch_mm() | |
| 24 | * | |
| 25 | * These are not required. | |
| 26 | */ | |
| 27 | ENTRY(cpu_arm9tdmi_proc_init) | |
| 28 | ENTRY(cpu_arm9tdmi_do_idle) | |
| 29 | ENTRY(cpu_arm9tdmi_dcache_clean_area) | |
| 30 | ENTRY(cpu_arm9tdmi_switch_mm) | |
| 6ebbf2ce | 31 | ret lr |
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32 | |
| 33 | /* | |
| 34 | * cpu_arm9tdmi_proc_fin() | |
| 35 | */ | |
| 36 | ENTRY(cpu_arm9tdmi_proc_fin) | |
| 6ebbf2ce | 37 | ret lr |
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38 | |
| 39 | /* | |
| 40 | * Function: cpu_arm9tdmi_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 | */ | |
| 1a4baafa | 44 | .pushsection .idmap.text, "ax" |
| 43f5f014 | 45 | ENTRY(cpu_arm9tdmi_reset) |
| 6ebbf2ce | 46 | ret r0 |
| 1a4baafa WD |
47 | ENDPROC(cpu_arm9tdmi_reset) |
| 48 | .popsection | |
| 43f5f014 | 49 | |
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50 | .type __arm9tdmi_setup, #function |
| 51 | __arm9tdmi_setup: | |
| 6ebbf2ce | 52 | ret lr |
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53 | .size __arm9tdmi_setup, . - __arm9tdmi_setup |
| 54 | ||
| 55 | __INITDATA | |
| 56 | ||
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57 | @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) |
| 58 | define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1 | |
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59 | |
| 60 | .section ".rodata" | |
| 61 | ||
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62 | string cpu_arch_name, "armv4t" |
| 63 | string cpu_elf_name, "v4" | |
| 64 | string cpu_arm9tdmi_name, "ARM9TDMI" | |
| 65 | string cpu_p2001_name, "P2001" | |
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66 | |
| 67 | .align | |
| 68 | ||
| 790756c7 | 69 | .section ".proc.info.init", "a" |
| 43f5f014 | 70 | |
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71 | .macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req |
| 72 | .type __\name\()_proc_info, #object | |
| 73 | __\name\()_proc_info: | |
| 74 | .long \cpu_val | |
| 75 | .long \cpu_mask | |
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76 | .long 0 |
| 77 | .long 0 | |
| bf35706f | 78 | initfn __arm9tdmi_setup, __\name\()_proc_info |
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79 | .long cpu_arch_name |
| 80 | .long cpu_elf_name | |
| 81 | .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT | |
| b4a19f03 | 82 | .long \cpu_name |
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83 | .long arm9tdmi_processor_functions |
| 84 | .long 0 | |
| 85 | .long 0 | |
| 86 | .long v4_cache_fns | |
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87 | .size __\name\()_proc_info, . - __\name\()_proc_info |
| 88 | .endm | |
| 43f5f014 | 89 | |
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90 | arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name |
| 91 | arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name |