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Diffstat (limited to 'arch/arm/mm/proc-arm9tdmi.S')
| -rw-r--r-- | arch/arm/mm/proc-arm9tdmi.S | 91 |
1 files changed, 91 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-arm9tdmi.S b/arch/arm/mm/proc-arm9tdmi.S new file mode 100644 index 000000000..a054c0e9c --- /dev/null +++ b/arch/arm/mm/proc-arm9tdmi.S @@ -0,0 +1,91 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * linux/arch/arm/mm/proc-arm9tdmi.S: utility functions for ARM9TDMI + * + * Copyright (C) 2003-2006 Hyok S. Choi <hyok.choi@samsung.com> + */ +#include <linux/linkage.h> +#include <linux/init.h> +#include <linux/pgtable.h> +#include <asm/assembler.h> +#include <asm/asm-offsets.h> +#include <asm/hwcap.h> +#include <asm/pgtable-hwdef.h> +#include <asm/ptrace.h> + +#include "proc-macros.S" + + .text +/* + * cpu_arm9tdmi_proc_init() + * cpu_arm9tdmi_do_idle() + * cpu_arm9tdmi_dcache_clean_area() + * cpu_arm9tdmi_switch_mm() + * + * These are not required. + */ +ENTRY(cpu_arm9tdmi_proc_init) +ENTRY(cpu_arm9tdmi_do_idle) +ENTRY(cpu_arm9tdmi_dcache_clean_area) +ENTRY(cpu_arm9tdmi_switch_mm) + ret lr + +/* + * cpu_arm9tdmi_proc_fin() + */ +ENTRY(cpu_arm9tdmi_proc_fin) + ret lr + +/* + * Function: cpu_arm9tdmi_reset(loc) + * Params : loc(r0) address to jump to + * Purpose : Sets up everything for a reset and jump to the location for soft reset. + */ + .pushsection .idmap.text, "ax" +ENTRY(cpu_arm9tdmi_reset) + ret r0 +ENDPROC(cpu_arm9tdmi_reset) + .popsection + + .type __arm9tdmi_setup, #function +__arm9tdmi_setup: + ret lr + .size __arm9tdmi_setup, . - __arm9tdmi_setup + + __INITDATA + + @ define struct processor (see <asm/proc-fns.h> and proc-macros.S) + define_processor_functions arm9tdmi, dabort=nommu_early_abort, pabort=legacy_pabort, nommu=1 + + .section ".rodata" + + string cpu_arch_name, "armv4t" + string cpu_elf_name, "v4" + string cpu_arm9tdmi_name, "ARM9TDMI" + string cpu_p2001_name, "P2001" + + .align + + .section ".proc.info.init", "a" + +.macro arm9tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req + .type __\name\()_proc_info, #object +__\name\()_proc_info: + .long \cpu_val + .long \cpu_mask + .long 0 + .long 0 + initfn __arm9tdmi_setup, __\name\()_proc_info + .long cpu_arch_name + .long cpu_elf_name + .long HWCAP_SWP | HWCAP_THUMB | HWCAP_26BIT + .long \cpu_name + .long arm9tdmi_processor_functions + .long 0 + .long 0 + .long v4_cache_fns + .size __\name\()_proc_info, . - __\name\()_proc_info +.endm + + arm9tdmi_proc_info arm9tdmi, 0x41009900, 0xfff8ff00, cpu_arm9tdmi_name + arm9tdmi_proc_info p2001, 0x41029000, 0xffffffff, cpu_p2001_name |