^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/linkage.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/pgtable.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <asm/assembler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) #include <asm/asm-offsets.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <asm/hwcap.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm/pgtable-hwdef.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <asm/ptrace.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include "proc-macros.S"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) .text
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * cpu_arm9tdmi_proc_init()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * cpu_arm9tdmi_do_idle()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * cpu_arm9tdmi_dcache_clean_area()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * cpu_arm9tdmi_switch_mm()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) * These are not required.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) ENTRY(cpu_arm9tdmi_proc_init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) ENTRY(cpu_arm9tdmi_do_idle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ENTRY(cpu_arm9tdmi_dcache_clean_area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ENTRY(cpu_arm9tdmi_switch_mm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) ret lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) * cpu_arm9tdmi_proc_fin()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ENTRY(cpu_arm9tdmi_proc_fin)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) ret lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) * Function: cpu_arm9tdmi_reset(loc)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) * Params : loc(r0) address to jump to
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) * Purpose : Sets up everything for a reset and jump to the location for soft reset.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) .pushsection .idmap.text, "ax"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) ENTRY(cpu_arm9tdmi_reset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) ret r0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) ENDPROC(cpu_arm9tdmi_reset)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) .popsection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) .type __arm9tdmi_setup, #function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) __arm9tdmi_setup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) ret lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .size __arm9tdmi_setup, . - __arm9tdmi_setup
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) __INITDATA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) .section ".rodata"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) string cpu_arch_name, "armv4t"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) string cpu_elf_name, "v4"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) string cpu_arm9tdmi_name, "ARM9TDMI"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) string cpu_p2001_name, "P2001"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) .align
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) .section ".proc.info.init", "a"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) .macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) .type __\name\()_proc_info, #object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) __\name\()_proc_info:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) .long \cpu_val
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .long \cpu_mask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) initfn __arm9tdmi_setup, __\name\()_proc_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .long cpu_arch_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) .long cpu_elf_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .long \cpu_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .long arm9tdmi_processor_functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .long v4_cache_fns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .size __\name\()_proc_info, . - __\name\()_proc_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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