1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3 * (C) Copyright 2016 nexell
4 * jhkim <jhkim@nexell.co.kr>
5 */
6
7 #include <common.h>
8 #include <bootm.h>
9 #include <command.h>
10 #include <environment.h>
11 #include <errno.h>
12 #include <image.h>
13 #include <fdt_support.h>
14 #include <asm/global_data.h>
15
16 #if !defined(CONFIG_SPL_BUILD) || defined(CONFIG_SPL_CLI_FRAMEWORK)
17
18 DECLARE_GLOBAL_DATA_PTR;
19
20 static bootm_headers_t linux_images;
21
boot_go_set_os(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[],bootm_headers_t * images)22 static void boot_go_set_os(cmd_tbl_t *cmdtp, int flag, int argc,
23 char * const argv[],
24 bootm_headers_t *images)
25 {
26 char * const img_addr = argv[0];
27
28 images->os.type = IH_TYPE_KERNEL;
29 images->os.comp = IH_COMP_NONE;
30 images->os.os = IH_OS_LINUX;
31 images->os.load = simple_strtoul(img_addr, NULL, 16);
32 images->ep = images->os.load;
33 #if defined(CONFIG_ARM)
34 images->os.arch = IH_ARCH_ARM;
35 #elif defined(CONFIG_ARM64)
36 images->os.arch = IH_ARCH_ARM64;
37 #else
38 #error "Not support architecture ..."
39 #endif
40 if (!IS_ENABLED(CONFIG_OF_LIBFDT) && !IS_ENABLED(CONFIG_SPL_BUILD)) {
41 /* set DTB address for linux kernel */
42 if (argc > 2) {
43 unsigned long ft_addr;
44
45 ft_addr = simple_strtol(argv[2], NULL, 16);
46 images->ft_addr = (char *)ft_addr;
47
48 /*
49 * if not defined IMAGE_ENABLE_OF_LIBFDT,
50 * must be set to fdt address
51 */
52 if (!IMAGE_ENABLE_OF_LIBFDT)
53 gd->bd->bi_boot_params = ft_addr;
54
55 debug("## set ft:%08lx and boot params:%08lx [control of:%s]"
56 "...\n", ft_addr, gd->bd->bi_boot_params,
57 IMAGE_ENABLE_OF_LIBFDT ? "on" : "off");
58 }
59 }
60 }
61
62 #if defined(CONFIG_OF_LIBFDT) && defined(CONFIG_LMB)
boot_start_lmb(bootm_headers_t * images)63 static void boot_start_lmb(bootm_headers_t *images)
64 {
65 ulong mem_start;
66 phys_size_t mem_size;
67
68 lmb_init(&images->lmb);
69
70 mem_start = getenv_bootm_low();
71 mem_size = getenv_bootm_size();
72
73 lmb_add(&images->lmb, (phys_addr_t)mem_start, mem_size);
74
75 arch_lmb_reserve(&images->lmb);
76 board_lmb_reserve(&images->lmb);
77 }
78 #else
79 #define lmb_reserve(lmb, base, size)
boot_start_lmb(bootm_headers_t * images)80 static inline void boot_start_lmb(bootm_headers_t *images) { }
81 #endif
82
do_boot_linux(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])83 int do_boot_linux(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
84 {
85 boot_os_fn *boot_fn;
86 bootm_headers_t *images = &linux_images;
87 int flags;
88 int ret;
89
90 boot_start_lmb(images);
91
92 flags = BOOTM_STATE_START;
93
94 argc--; argv++;
95 boot_go_set_os(cmdtp, flag, argc, argv, images);
96
97 if (IS_ENABLED(CONFIG_OF_LIBFDT)) {
98 /* find flattened device tree */
99 ret = boot_get_fdt(flag, argc, argv, IH_ARCH_DEFAULT, images,
100 &images->ft_addr, &images->ft_len);
101 if (ret) {
102 puts("Could not find a valid device tree\n");
103 return 1;
104 }
105 set_working_fdt_addr((ulong)images->ft_addr);
106 }
107
108 if (!IS_ENABLED(CONFIG_OF_LIBFDT))
109 flags |= BOOTM_STATE_OS_GO;
110
111 boot_fn = do_bootm_linux;
112 ret = boot_fn(flags, argc, argv, images);
113
114 if (ret == BOOTM_ERR_UNIMPLEMENTED)
115 show_boot_progress(BOOTSTAGE_ID_DECOMP_UNIMPL);
116 else if (ret == BOOTM_ERR_RESET)
117 do_reset(cmdtp, flag, argc, argv);
118
119 return ret;
120 }
121
122 U_BOOT_CMD(bootl, CONFIG_SYS_MAXARGS, 1, do_boot_linux,
123 "boot linux image from memory",
124 "[addr [arg ...]]\n - boot linux image stored in memory\n"
125 "\tuse a '-' for the DTB address\n"
126 );
127 #endif
128
129 #if defined(CONFIG_CMD_BOOTD) && !defined(CONFIG_CMD_BOOTM)
do_bootd(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])130 int do_bootd(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
131 {
132 return run_command(env_get("bootcmd"), flag);
133 }
134
135 U_BOOT_CMD(boot, 1, 1, do_bootd,
136 "boot default, i.e., run 'bootcmd'",
137 ""
138 );
139
140 /* keep old command name "bootd" for backward compatibility */
141 U_BOOT_CMD(bootd, 1, 1, do_bootd,
142 "boot default, i.e., run 'bootcmd'",
143 ""
144 );
145 #endif
146