1 /* !! 1 // SPDX-License-Identifier: GPL-2.0
2 * Copyright (C) 2007-2009 Michal Simek <monst !! 2 #ifdef CONFIG_MMU
3 * Copyright (C) 2007-2009 PetaLogix !! 3 #include "setup_mm.c"
4 * Copyright (C) 2006 Atmark Techno, Inc. <<
5 * <<
6 * This file is subject to the terms and condi <<
7 * License. See the file "COPYING" in the main <<
8 * for more details. <<
9 */ <<
10 <<
11 #include <linux/init.h> <<
12 #include <linux/of_clk.h> <<
13 #include <linux/clocksource.h> <<
14 #include <linux/string.h> <<
15 #include <linux/seq_file.h> <<
16 #include <linux/cpu.h> <<
17 #include <linux/initrd.h> <<
18 #include <linux/console.h> <<
19 #include <linux/debugfs.h> <<
20 #include <linux/of_fdt.h> <<
21 #include <linux/pgtable.h> <<
22 <<
23 #include <asm/setup.h> <<
24 #include <asm/sections.h> <<
25 #include <asm/page.h> <<
26 #include <linux/io.h> <<
27 #include <linux/bug.h> <<
28 #include <linux/param.h> <<
29 #include <linux/pci.h> <<
30 #include <linux/cache.h> <<
31 #include <linux/of.h> <<
32 #include <linux/dma-mapping.h> <<
33 #include <asm/cacheflush.h> <<
34 #include <asm/entry.h> <<
35 #include <asm/cpuinfo.h> <<
36 <<
37 <<
38 DEFINE_PER_CPU(unsigned int, KSP); /* Sav <<
39 DEFINE_PER_CPU(unsigned int, KM); /* Ker <<
40 DEFINE_PER_CPU(unsigned int, ENTRY_SP); /* Sav <<
41 DEFINE_PER_CPU(unsigned int, R11_SAVE); /* Tem <<
42 DEFINE_PER_CPU(unsigned int, CURRENT_SAVE); <<
43 <<
44 /* <<
45 * Placed cmd_line to .data section because ca <<
46 * ASM code. Default position is BSS section w <<
47 * in machine_early_init(). <<
48 */ <<
49 char cmd_line[COMMAND_LINE_SIZE] __section(".d <<
50 <<
51 void __init setup_arch(char **cmdline_p) <<
52 { <<
53 *cmdline_p = boot_command_line; <<
54 <<
55 setup_memory(); <<
56 <<
57 console_verbose(); <<
58 <<
59 unflatten_device_tree(); <<
60 <<
61 setup_cpuinfo(); <<
62 <<
63 microblaze_cache_init(); <<
64 <<
65 xilinx_pci_init(); <<
66 } <<
67 <<
68 #ifdef CONFIG_MTD_UCLINUX <<
69 /* Handle both romfs and cramfs types, without <<
70 code (ie no point checking for CRAMFS if it's <<
71 inline unsigned get_romfs_len(unsigned *addr) <<
72 { <<
73 #ifdef CONFIG_ROMFS_FS <<
74 if (memcmp(&addr[0], "-rom1fs-", 8) == <<
75 return be32_to_cpu(addr[2]); <<
76 #endif <<
77 <<
78 #ifdef CONFIG_CRAMFS <<
79 if (addr[0] == le32_to_cpu(0x28cd3d45) <<
80 return le32_to_cpu(addr[1]); <<
81 #endif <<
82 return 0; <<
83 } <<
84 #endif /* CONFIG_MTD_UCLINUX_EBSS */ <<
85 <<
86 unsigned long kernel_tlb; <<
87 <<
88 void __init machine_early_init(const char *cmd <<
89 unsigned int fdt, unsigned int <<
90 unsigned int tlb1) <<
91 { <<
92 unsigned long *src, *dst; <<
93 unsigned int offset = 0; <<
94 <<
95 /* If CONFIG_MTD_UCLINUX is defined, a <<
96 * end of kernel. There are two positi <<
97 * The first is __init_end and the sec <<
98 */ <<
99 #ifdef CONFIG_MTD_UCLINUX <<
100 int romfs_size; <<
101 unsigned int romfs_base; <<
102 char *old_klimit = klimit; <<
103 <<
104 romfs_base = (ram ? ram : (unsigned in <<
105 romfs_size = PAGE_ALIGN(get_romfs_len( <<
106 if (!romfs_size) { <<
107 romfs_base = (unsigned int)&__ <<
108 romfs_size = PAGE_ALIGN(get_ro <<
109 } <<
110 <<
111 /* Move ROMFS out of BSS before cleari <<
112 if (romfs_size > 0) { <<
113 memmove(&__bss_stop, (int *)ro <<
114 klimit += romfs_size; <<
115 } <<
116 #endif <<
117 <<
118 /* clearing bss section */ <<
119 memset(__bss_start, 0, __bss_stop-__bs <<
120 memset(_ssbss, 0, _esbss-_ssbss); <<
121 <<
122 /* initialize device tree for usage in early_p <<
123 early_init_devtree(_fdt_start); <<
124 <<
125 /* setup kernel_tlb after BSS cleaning <<
126 * Maybe worth to move to asm code */ <<
127 kernel_tlb = tlb0 + tlb1; <<
128 /* printk("TLB1 0x%08x, TLB0 0x%08x, t <<
129 <<
130 <<
131 pr_info("Ramdisk addr 0x%08x, ", ram); <<
132 if (fdt) <<
133 pr_info("FDT at 0x%08x\n", fdt <<
134 else <<
135 pr_info("Compiled-in FDT at %p <<
136 <<
137 #ifdef CONFIG_MTD_UCLINUX <<
138 pr_info("Found romfs @ 0x%08x (0x%08x) <<
139 romfs_base, romfs_size <<
140 pr_info("#### klimit %p ####\n", old_k <<
141 BUG_ON(romfs_size < 0); /* What else c <<
142 <<
143 pr_info("Moved 0x%08x bytes from 0x%08 <<
144 romfs_size, romfs_base <<
145 <<
146 pr_info("New klimit: 0x%08x\n", (unsig <<
147 #endif <<
148 <<
149 #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR <<
150 if (msr) { <<
151 pr_info("!!!Your kernel has se <<
152 pr_cont("CPU don't have it %x\ <<
153 } <<
154 #else 4 #else
155 if (!msr) { !! 5 #include "setup_no.c"
156 pr_info("!!!Your kernel not se <<
157 pr_cont("CPU have it %x\n", ms <<
158 } <<
159 #endif <<
160 <<
161 /* Do not copy reset vectors. offset = <<
162 * two instructions. dst is pointer to <<
163 * in block ram. If you want to copy r <<
164 #if !CONFIG_MANUAL_RESET_VECTOR <<
165 offset = 0x2; <<
166 #endif 6 #endif
167 dst = (unsigned long *) (offset * size <<
168 for (src = __ivt_start + offset; src < <<
169 *dst = *src; <<
170 <<
171 /* Initialize global data */ <<
172 per_cpu(KM, 0) = 0x1; /* We start in <<
173 per_cpu(CURRENT_SAVE, 0) = (unsigned l <<
174 } <<
175 <<
176 void __init time_init(void) <<
177 { <<
178 of_clk_init(NULL); <<
179 setup_cpuinfo_clk(); <<
180 timer_probe(); <<
181 } <<
182 <<
183 #ifdef CONFIG_DEBUG_FS <<
184 struct dentry *of_debugfs_root; <<
185 <<
186 static int microblaze_debugfs_init(void) <<
187 { <<
188 of_debugfs_root = debugfs_create_dir(" <<
189 return 0; <<
190 } <<
191 arch_initcall(microblaze_debugfs_init); <<
192 7
193 static int __init debugfs_tlb(void) !! 8 #if IS_ENABLED(CONFIG_INPUT_M68K_BEEP)
194 { !! 9 void (*mach_beep)(unsigned int, unsigned int);
195 debugfs_create_u32("tlb_skip", S_IRUGO !! 10 EXPORT_SYMBOL(mach_beep);
196 return 0; <<
197 } <<
198 device_initcall(debugfs_tlb); <<
199 #endif 11 #endif
200 12
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