Loading...
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/arch/m68knommu/kernel/setup.c
4 *
5 * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com)
6 * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org>
7 * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com}
8 * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
9 * Copyright (C) 1995 Hamish Macdonald
10 * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
11 * Copyright (C) 2001 Lineo, Inc. <www.lineo.com>
12 *
13 * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca>
14 */
15
16/*
17 * This file handles the architecture-dependent parts of system setup
18 */
19
20#include <linux/kernel.h>
21#include <linux/sched.h>
22#include <linux/delay.h>
23#include <linux/interrupt.h>
24#include <linux/fb.h>
25#include <linux/module.h>
26#include <linux/mm.h>
27#include <linux/console.h>
28#include <linux/errno.h>
29#include <linux/string.h>
30#include <linux/memblock.h>
31#include <linux/seq_file.h>
32#include <linux/init.h>
33#include <linux/initrd.h>
34#include <linux/root_dev.h>
35#include <linux/rtc.h>
36
37#include <asm/setup.h>
38#include <asm/bootinfo.h>
39#include <asm/irq.h>
40#include <asm/machdep.h>
41#include <asm/pgtable.h>
42#include <asm/sections.h>
43
44unsigned long memory_start;
45unsigned long memory_end;
46
47EXPORT_SYMBOL(memory_start);
48EXPORT_SYMBOL(memory_end);
49
50char __initdata command_line[COMMAND_LINE_SIZE];
51
52/* machine dependent timer functions */
53void (*mach_sched_init)(irq_handler_t handler) __initdata = NULL;
54int (*mach_hwclk) (int, struct rtc_time*);
55
56/* machine dependent reboot functions */
57void (*mach_reset)(void);
58void (*mach_halt)(void);
59void (*mach_power_off)(void);
60
61#ifdef CONFIG_M68000
62#if defined(CONFIG_M68328)
63#define CPU_NAME "MC68328"
64#elif defined(CONFIG_M68EZ328)
65#define CPU_NAME "MC68EZ328"
66#elif defined(CONFIG_M68VZ328)
67#define CPU_NAME "MC68VZ328"
68#else
69#define CPU_NAME "MC68000"
70#endif
71#endif /* CONFIG_M68000 */
72#ifndef CPU_NAME
73#define CPU_NAME "UNKNOWN"
74#endif
75
76/*
77 * Different cores have different instruction execution timings.
78 * The old/traditional 68000 cores are basically all the same, at 16.
79 * The ColdFire cores vary a little, their values are defined in their
80 * headers. We default to the standard 68000 value here.
81 */
82#ifndef CPU_INSTR_PER_JIFFY
83#define CPU_INSTR_PER_JIFFY 16
84#endif
85
86void __init setup_arch(char **cmdline_p)
87{
88 memory_start = PAGE_ALIGN(_ramstart);
89 memory_end = _ramend;
90
91 init_mm.start_code = (unsigned long) &_stext;
92 init_mm.end_code = (unsigned long) &_etext;
93 init_mm.end_data = (unsigned long) &_edata;
94 init_mm.brk = (unsigned long) 0;
95
96 config_BSP(&command_line[0], sizeof(command_line));
97
98#if defined(CONFIG_BOOTPARAM)
99 strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
100 command_line[sizeof(command_line) - 1] = 0;
101#endif /* CONFIG_BOOTPARAM */
102
103 process_uboot_commandline(&command_line[0], sizeof(command_line));
104
105 pr_info("uClinux with CPU " CPU_NAME "\n");
106
107#ifdef CONFIG_UCDIMM
108 pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n");
109#endif
110#ifdef CONFIG_M68VZ328
111 pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
112#endif
113#ifdef CONFIG_COLDFIRE
114 pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
115#ifdef CONFIG_M5307
116 pr_info("Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
117#endif
118#ifdef CONFIG_ELITE
119 pr_info("Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
120#endif
121#endif
122 pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
123
124#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
125 pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n");
126#endif
127#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
128 pr_info("PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
129#endif
130#ifdef CONFIG_DRAGEN2
131 pr_info("DragonEngine II board support by Georges Menie\n");
132#endif
133#ifdef CONFIG_M5235EVB
134 pr_info("Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
135#endif
136
137 pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
138 _stext, _etext, _sdata, _edata, __bss_start, __bss_stop);
139 pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ",
140 __bss_stop, memory_start, memory_start, memory_end);
141
142 memblock_add(memory_start, memory_end - memory_start);
143
144 /* Keep a copy of command line */
145 *cmdline_p = &command_line[0];
146 memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
147 boot_command_line[COMMAND_LINE_SIZE-1] = 0;
148
149#if defined(CONFIG_FRAMEBUFFER_CONSOLE) && defined(CONFIG_DUMMY_CONSOLE)
150 conswitchp = &dummy_con;
151#endif
152
153 /*
154 * Give all the memory to the bootmap allocator, tell it to put the
155 * boot mem_map at the start of memory.
156 */
157 min_low_pfn = PFN_DOWN(memory_start);
158 max_pfn = max_low_pfn = PFN_DOWN(memory_end);
159
160#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
161 if ((initrd_start > 0) && (initrd_start < initrd_end) &&
162 (initrd_end < memory_end))
163 memblock_reserve(initrd_start, initrd_end - initrd_start);
164#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
165
166 /*
167 * Get kmalloc into gear.
168 */
169 paging_init();
170}
171
172/*
173 * Get CPU information for use by the procfs.
174 */
175static int show_cpuinfo(struct seq_file *m, void *v)
176{
177 char *cpu, *mmu, *fpu;
178 u_long clockfreq;
179
180 cpu = CPU_NAME;
181 mmu = "none";
182 fpu = "none";
183 clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;
184
185 seq_printf(m, "CPU:\t\t%s\n"
186 "MMU:\t\t%s\n"
187 "FPU:\t\t%s\n"
188 "Clocking:\t%lu.%1luMHz\n"
189 "BogoMips:\t%lu.%02lu\n"
190 "Calibration:\t%lu loops\n",
191 cpu, mmu, fpu,
192 clockfreq / 1000000,
193 (clockfreq / 100000) % 10,
194 (loops_per_jiffy * HZ) / 500000,
195 ((loops_per_jiffy * HZ) / 5000) % 100,
196 (loops_per_jiffy * HZ));
197
198 return 0;
199}
200
201static void *c_start(struct seq_file *m, loff_t *pos)
202{
203 return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
204}
205
206static void *c_next(struct seq_file *m, void *v, loff_t *pos)
207{
208 ++*pos;
209 return c_start(m, pos);
210}
211
212static void c_stop(struct seq_file *m, void *v)
213{
214}
215
216const struct seq_operations cpuinfo_op = {
217 .start = c_start,
218 .next = c_next,
219 .stop = c_stop,
220 .show = show_cpuinfo,
221};
222
1// SPDX-License-Identifier: GPL-2.0
2/*
3 * linux/arch/m68knommu/kernel/setup.c
4 *
5 * Copyright (C) 1999-2007 Greg Ungerer (gerg@snapgear.com)
6 * Copyright (C) 1998,1999 D. Jeff Dionne <jeff@uClinux.org>
7 * Copyleft ()) 2000 James D. Schettine {james@telos-systems.com}
8 * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
9 * Copyright (C) 1995 Hamish Macdonald
10 * Copyright (C) 2000 Lineo Inc. (www.lineo.com)
11 * Copyright (C) 2001 Lineo, Inc. <www.lineo.com>
12 *
13 * 68VZ328 Fixes/support Evan Stawnyczy <e@lineo.ca>
14 */
15
16/*
17 * This file handles the architecture-dependent parts of system setup
18 */
19
20#include <linux/kernel.h>
21#include <linux/sched.h>
22#include <linux/delay.h>
23#include <linux/interrupt.h>
24#include <linux/fb.h>
25#include <linux/module.h>
26#include <linux/mm.h>
27#include <linux/console.h>
28#include <linux/errno.h>
29#include <linux/string.h>
30#include <linux/memblock.h>
31#include <linux/seq_file.h>
32#include <linux/init.h>
33#include <linux/initrd.h>
34#include <linux/root_dev.h>
35#include <linux/rtc.h>
36
37#include <asm/setup.h>
38#include <asm/bootinfo.h>
39#include <asm/irq.h>
40#include <asm/machdep.h>
41#include <asm/sections.h>
42
43unsigned long memory_start;
44unsigned long memory_end;
45
46EXPORT_SYMBOL(memory_start);
47EXPORT_SYMBOL(memory_end);
48
49char __initdata command_line[COMMAND_LINE_SIZE];
50
51/* machine dependent timer functions */
52void (*mach_sched_init)(void) __initdata = NULL;
53int (*mach_hwclk) (int, struct rtc_time*);
54
55/* machine dependent reboot functions */
56void (*mach_reset)(void);
57void (*mach_halt)(void);
58void (*mach_power_off)(void);
59
60#ifdef CONFIG_M68000
61#if defined(CONFIG_M68328)
62#define CPU_NAME "MC68328"
63#elif defined(CONFIG_M68EZ328)
64#define CPU_NAME "MC68EZ328"
65#elif defined(CONFIG_M68VZ328)
66#define CPU_NAME "MC68VZ328"
67#else
68#define CPU_NAME "MC68000"
69#endif
70#endif /* CONFIG_M68000 */
71#ifndef CPU_NAME
72#define CPU_NAME "UNKNOWN"
73#endif
74
75/*
76 * Different cores have different instruction execution timings.
77 * The old/traditional 68000 cores are basically all the same, at 16.
78 * The ColdFire cores vary a little, their values are defined in their
79 * headers. We default to the standard 68000 value here.
80 */
81#ifndef CPU_INSTR_PER_JIFFY
82#define CPU_INSTR_PER_JIFFY 16
83#endif
84
85void __init setup_arch(char **cmdline_p)
86{
87 memory_start = PAGE_ALIGN(_ramstart);
88 memory_end = _ramend;
89
90 setup_initial_init_mm(_stext, _etext, _edata, NULL);
91
92 config_BSP(&command_line[0], sizeof(command_line));
93
94#if defined(CONFIG_BOOTPARAM)
95 strncpy(&command_line[0], CONFIG_BOOTPARAM_STRING, sizeof(command_line));
96 command_line[sizeof(command_line) - 1] = 0;
97#endif /* CONFIG_BOOTPARAM */
98
99 process_uboot_commandline(&command_line[0], sizeof(command_line));
100
101 pr_info("uClinux with CPU " CPU_NAME "\n");
102
103#ifdef CONFIG_UCDIMM
104 pr_info("uCdimm by Lineo, Inc. <www.lineo.com>\n");
105#endif
106#ifdef CONFIG_M68328
107 pr_info("68328 support D. Jeff Dionne <jeff@uclinux.org>\n");
108 pr_info("68328 support Kenneth Albanowski <kjahds@kjshds.com>\n");
109#endif
110#ifdef CONFIG_M68EZ328
111 pr_info("68EZ328 DragonBallEZ support (C) 1999 Rt-Control, Inc\n");
112#endif
113#ifdef CONFIG_M68VZ328
114 pr_info("M68VZ328 support by Evan Stawnyczy <e@lineo.ca>\n");
115 pr_info("68VZ328 DragonBallVZ support (c) 2001 Lineo, Inc.\n");
116#endif
117#ifdef CONFIG_COLDFIRE
118 pr_info("COLDFIRE port done by Greg Ungerer, gerg@snapgear.com\n");
119#ifdef CONFIG_M5307
120 pr_info("Modified for M5307 by Dave Miller, dmiller@intellistor.com\n");
121#endif
122#ifdef CONFIG_ELITE
123 pr_info("Modified for M5206eLITE by Rob Scott, rscott@mtrob.fdns.net\n");
124#endif
125#endif
126 pr_info("Flat model support (C) 1998,1999 Kenneth Albanowski, D. Jeff Dionne\n");
127
128#if defined( CONFIG_PILOT ) && defined( CONFIG_M68328 )
129 pr_info("68328/Pilot support Bernhard Kuhn <kuhn@lpr.e-technik.tu-muenchen.de>\n");
130 pr_info("TRG SuperPilot FLASH card support <info@trgnet.com>\n");
131#endif
132#if defined( CONFIG_PILOT ) && defined( CONFIG_M68EZ328 )
133 pr_info("PalmV support by Lineo Inc. <jeff@uclinux.com>\n");
134#endif
135#ifdef CONFIG_DRAGEN2
136 pr_info("DragonEngine II board support by Georges Menie\n");
137#endif
138#ifdef CONFIG_M5235EVB
139 pr_info("Motorola M5235EVB support (C)2005 Syn-tech Systems, Inc. (Jate Sujjavanich)\n");
140#endif
141
142 pr_debug("KERNEL -> TEXT=0x%p-0x%p DATA=0x%p-0x%p BSS=0x%p-0x%p\n",
143 _stext, _etext, _sdata, _edata, __bss_start, __bss_stop);
144 pr_debug("MEMORY -> ROMFS=0x%p-0x%06lx MEM=0x%06lx-0x%06lx\n ",
145 __bss_stop, memory_start, memory_start, memory_end);
146
147 memblock_add(_rambase, memory_end - _rambase);
148 memblock_reserve(_rambase, memory_start - _rambase);
149
150 /* Keep a copy of command line */
151 *cmdline_p = &command_line[0];
152 memcpy(boot_command_line, command_line, COMMAND_LINE_SIZE);
153 boot_command_line[COMMAND_LINE_SIZE-1] = 0;
154
155 /*
156 * Give all the memory to the bootmap allocator, tell it to put the
157 * boot mem_map at the start of memory.
158 */
159 min_low_pfn = PFN_DOWN(memory_start);
160 max_pfn = max_low_pfn = PFN_DOWN(memory_end);
161
162#if defined(CONFIG_UBOOT) && defined(CONFIG_BLK_DEV_INITRD)
163 if ((initrd_start > 0) && (initrd_start < initrd_end) &&
164 (initrd_end < memory_end))
165 memblock_reserve(initrd_start, initrd_end - initrd_start);
166#endif /* if defined(CONFIG_BLK_DEV_INITRD) */
167
168 /*
169 * Get kmalloc into gear.
170 */
171 paging_init();
172}
173
174/*
175 * Get CPU information for use by the procfs.
176 */
177static int show_cpuinfo(struct seq_file *m, void *v)
178{
179 char *cpu, *mmu, *fpu;
180 u_long clockfreq;
181
182 cpu = CPU_NAME;
183 mmu = "none";
184 fpu = "none";
185 clockfreq = (loops_per_jiffy * HZ) * CPU_INSTR_PER_JIFFY;
186
187 seq_printf(m, "CPU:\t\t%s\n"
188 "MMU:\t\t%s\n"
189 "FPU:\t\t%s\n"
190 "Clocking:\t%lu.%1luMHz\n"
191 "BogoMips:\t%lu.%02lu\n"
192 "Calibration:\t%lu loops\n",
193 cpu, mmu, fpu,
194 clockfreq / 1000000,
195 (clockfreq / 100000) % 10,
196 (loops_per_jiffy * HZ) / 500000,
197 ((loops_per_jiffy * HZ) / 5000) % 100,
198 (loops_per_jiffy * HZ));
199
200 return 0;
201}
202
203static void *c_start(struct seq_file *m, loff_t *pos)
204{
205 return *pos < NR_CPUS ? ((void *) 0x12345678) : NULL;
206}
207
208static void *c_next(struct seq_file *m, void *v, loff_t *pos)
209{
210 ++*pos;
211 return c_start(m, pos);
212}
213
214static void c_stop(struct seq_file *m, void *v)
215{
216}
217
218const struct seq_operations cpuinfo_op = {
219 .start = c_start,
220 .next = c_next,
221 .stop = c_stop,
222 .show = show_cpuinfo,
223};
224