^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-arm7tdmi.S: utility functions for ARM7TDMI
^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_arm7tdmi_proc_init()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) * cpu_arm7tdmi_do_idle()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * cpu_arm7tdmi_dcache_clean_area()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * cpu_arm7tdmi_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_arm7tdmi_proc_init)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) ENTRY(cpu_arm7tdmi_do_idle)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) ENTRY(cpu_arm7tdmi_dcache_clean_area)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ENTRY(cpu_arm7tdmi_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_arm7tdmi_proc_fin()
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) ENTRY(cpu_arm7tdmi_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_arm7tdmi_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_arm7tdmi_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_arm7tdmi_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 __arm7tdmi_setup, #function
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) __arm7tdmi_setup:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) ret lr
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) .size __arm7tdmi_setup, . - __arm7tdmi_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 arm7tdmi, dabort=v4t_late_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_arm7tdmi_name, "ARM7TDMI"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) string cpu_triscenda7_name, "Triscend-A7x"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) string cpu_at91_name, "Atmel-AT91M40xxx"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) string cpu_s3c3410_name, "Samsung-S3C3410"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) string cpu_s3c4510b_name, "Samsung-S3C4510B"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) string cpu_s3c4530_name, "Samsung-S3C4530"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) string cpu_netarm_name, "NETARM"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) .align
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) .section ".proc.info.init", "a"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) .macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) extra_hwcaps=0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) .type __\name\()_proc_info, #object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) __\name\()_proc_info:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) .long \cpu_val
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) .long \cpu_mask
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) initfn __arm7tdmi_setup, __\name\()_proc_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) .long cpu_arch_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) .long cpu_elf_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) .long \cpu_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) .long arm7tdmi_processor_functions
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) .long 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) .long v4_cache_fns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) .size __\name\()_proc_info, . - __\name\()_proc_info
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) .endm
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) cpu_arm7tdmi_name
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) cpu_at91_name, extra_hwcaps=HWCAP_THUMB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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