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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /arch/arm/mm/proc-arm7tdmi.S
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/arm/mm/proc-arm7tdmi.S')
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1 files changed, 110 insertions, 0 deletions
diff --git a/arch/arm/mm/proc-arm7tdmi.S b/arch/arm/mm/proc-arm7tdmi.S
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+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * linux/arch/arm/mm/proc-arm7tdmi.S: utility functions for ARM7TDMI
+ *
+ * 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_arm7tdmi_proc_init()
+ * cpu_arm7tdmi_do_idle()
+ * cpu_arm7tdmi_dcache_clean_area()
+ * cpu_arm7tdmi_switch_mm()
+ *
+ * These are not required.
+ */
+ENTRY(cpu_arm7tdmi_proc_init)
+ENTRY(cpu_arm7tdmi_do_idle)
+ENTRY(cpu_arm7tdmi_dcache_clean_area)
+ENTRY(cpu_arm7tdmi_switch_mm)
+ ret lr
+
+/*
+ * cpu_arm7tdmi_proc_fin()
+ */
+ENTRY(cpu_arm7tdmi_proc_fin)
+ ret lr
+
+/*
+ * Function: cpu_arm7tdmi_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_arm7tdmi_reset)
+ ret r0
+ENDPROC(cpu_arm7tdmi_reset)
+ .popsection
+
+ .type __arm7tdmi_setup, #function
+__arm7tdmi_setup:
+ ret lr
+ .size __arm7tdmi_setup, . - __arm7tdmi_setup
+
+ __INITDATA
+
+ @ define struct processor (see <asm/proc-fns.h> and proc-macros.S)
+ define_processor_functions arm7tdmi, dabort=v4t_late_abort, pabort=legacy_pabort, nommu=1
+
+ .section ".rodata"
+
+ string cpu_arch_name, "armv4t"
+ string cpu_elf_name, "v4"
+ string cpu_arm7tdmi_name, "ARM7TDMI"
+ string cpu_triscenda7_name, "Triscend-A7x"
+ string cpu_at91_name, "Atmel-AT91M40xxx"
+ string cpu_s3c3410_name, "Samsung-S3C3410"
+ string cpu_s3c44b0x_name, "Samsung-S3C44B0x"
+ string cpu_s3c4510b_name, "Samsung-S3C4510B"
+ string cpu_s3c4530_name, "Samsung-S3C4530"
+ string cpu_netarm_name, "NETARM"
+
+ .align
+
+ .section ".proc.info.init", "a"
+
+.macro arm7tdmi_proc_info name:req, cpu_val:req, cpu_mask:req, cpu_name:req, \
+ extra_hwcaps=0
+ .type __\name\()_proc_info, #object
+__\name\()_proc_info:
+ .long \cpu_val
+ .long \cpu_mask
+ .long 0
+ .long 0
+ initfn __arm7tdmi_setup, __\name\()_proc_info
+ .long cpu_arch_name
+ .long cpu_elf_name
+ .long HWCAP_SWP | HWCAP_26BIT | ( \extra_hwcaps )
+ .long \cpu_name
+ .long arm7tdmi_processor_functions
+ .long 0
+ .long 0
+ .long v4_cache_fns
+ .size __\name\()_proc_info, . - __\name\()_proc_info
+.endm
+
+ arm7tdmi_proc_info arm7tdmi, 0x41007700, 0xfff8ff00, \
+ cpu_arm7tdmi_name
+ arm7tdmi_proc_info triscenda7, 0x0001d2ff, 0x0001ffff, \
+ cpu_triscenda7_name, extra_hwcaps=HWCAP_THUMB
+ arm7tdmi_proc_info at91, 0x14000040, 0xfff000e0, \
+ cpu_at91_name, extra_hwcaps=HWCAP_THUMB
+ arm7tdmi_proc_info s3c4510b, 0x36365000, 0xfffff000, \
+ cpu_s3c4510b_name, extra_hwcaps=HWCAP_THUMB
+ arm7tdmi_proc_info s3c4530, 0x4c000000, 0xfff000e0, \
+ cpu_s3c4530_name, extra_hwcaps=HWCAP_THUMB
+ arm7tdmi_proc_info s3c3410, 0x34100000, 0xffff0000, \
+ cpu_s3c3410_name, extra_hwcaps=HWCAP_THUMB
+ arm7tdmi_proc_info s3c44b0x, 0x44b00000, 0xffff0000, \
+ cpu_s3c44b0x_name, extra_hwcaps=HWCAP_THUMB