2 * Copyright (C) 2009 Sunplus Core Technology Co., Ltd.
3 * Chen Liqin <liqin.chen@sunplusct.com>
4 * Lennox Wu <lennox.wu@sunplusct.com>
5 * Copyright (C) 2012 Regents of the University of California
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, see the file COPYING, or write
19 * to the Free Software Foundation, Inc.,
22 #include <linux/init.h>
24 #include <linux/memblock.h>
25 #include <linux/sched.h>
26 #include <linux/console.h>
27 #include <linux/screen_info.h>
28 #include <linux/of_fdt.h>
29 #include <linux/of_platform.h>
30 #include <linux/sched/task.h>
31 #include <linux/swiotlb.h>
33 #include <asm/setup.h>
34 #include <asm/sections.h>
35 #include <asm/pgtable.h>
37 #include <asm/tlbflush.h>
38 #include <asm/thread_info.h>
40 #ifdef CONFIG_DUMMY_CONSOLE
41 struct screen_info screen_info = {
42 .orig_video_lines = 30,
43 .orig_video_cols = 80,
45 .orig_video_ega_bx = 0,
46 .orig_video_isVGA = 1,
47 .orig_video_points = 8
51 /* The lucky hart to first increment this variable will boot the other cores */
52 atomic_t hart_lottery;
53 unsigned long boot_cpu_hartid;
55 void __init parse_dtb(phys_addr_t dtb_phys)
57 void *dtb = __va(dtb_phys);
59 if (early_init_dt_scan(dtb))
62 pr_err("No DTB passed to the kernel\n");
63 #ifdef CONFIG_CMDLINE_FORCE
64 strlcpy(boot_command_line, CONFIG_CMDLINE, COMMAND_LINE_SIZE);
65 pr_info("Forcing kernel command line to: %s\n", boot_command_line);
69 void __init setup_arch(char **cmdline_p)
71 init_mm.start_code = (unsigned long) _stext;
72 init_mm.end_code = (unsigned long) _etext;
73 init_mm.end_data = (unsigned long) _edata;
74 init_mm.brk = (unsigned long) _end;
76 *cmdline_p = boot_command_line;
82 unflatten_device_tree();
92 #ifdef CONFIG_DUMMY_CONSOLE
93 conswitchp = &dummy_con;