treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 156
[linux-block.git] / arch / mips / vr41xx / common / init.c
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1a59d1b8 1// SPDX-License-Identifier: GPL-2.0-or-later
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2/*
3 * init.c, Common initialization routines for NEC VR4100 series.
4 *
66a0f0f2 5 * Copyright (C) 2003-2009 Yoichi Yuasa <yuasa@linux-mips.org>
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6 */
7#include <linux/init.h>
8#include <linux/ioport.h>
9#include <linux/irq.h>
10#include <linux/string.h>
11
12#include <asm/bootinfo.h>
13#include <asm/time.h>
66151bbd 14#include <asm/vr41xx/irq.h>
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15#include <asm/vr41xx/vr41xx.h>
16
17#define IO_MEM_RESOURCE_START 0UL
18#define IO_MEM_RESOURCE_END 0x1fffffffUL
19
20static void __init iomem_resource_init(void)
21{
22 iomem_resource.start = IO_MEM_RESOURCE_START;
23 iomem_resource.end = IO_MEM_RESOURCE_END;
24}
25
4b550488 26void __init plat_time_init(void)
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27{
28 unsigned long tclock;
29
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30 vr41xx_calculate_clock_frequency();
31
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32 tclock = vr41xx_get_tclock_frequency();
33 if (current_cpu_data.processor_id == PRID_VR4131_REV2_0 ||
34 current_cpu_data.processor_id == PRID_VR4131_REV2_1)
35 mips_hpt_frequency = tclock / 2;
36 else
37 mips_hpt_frequency = tclock / 4;
38}
39
2925aba4 40void __init plat_mem_setup(void)
c83cfc9c 41{
c83cfc9c 42 iomem_resource_init();
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43
44 vr41xx_siu_setup();
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45}
46
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47void __init prom_init(void)
48{
49 int argc, i;
50 char **argv;
51
52 argc = fw_arg0;
53 argv = (char **)fw_arg1;
54
55 for (i = 1; i < argc; i++) {
66a0f0f2 56 strlcat(arcs_cmdline, argv[i], COMMAND_LINE_SIZE);
1da177e4 57 if (i < (argc - 1))
66a0f0f2 58 strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE);
1da177e4 59 }
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60}
61
c44e8d5e 62void __init prom_free_prom_memory(void)
1da177e4 63{
1da177e4 64}