move booti_setup to arch/arm/lig/image.c
[oweals/u-boot.git] / cmd / booti.c
1 /*
2  * (C) Copyright 2000-2009
3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4  *
5  * SPDX-License-Identifier:     GPL-2.0+
6  */
7
8 #include <common.h>
9 #include <bootm.h>
10 #include <command.h>
11 #include <image.h>
12 #include <lmb.h>
13 #include <mapmem.h>
14 #include <linux/kernel.h>
15 #include <linux/sizes.h>
16
17 DECLARE_GLOBAL_DATA_PTR;
18
19 /*
20  * Image booting support
21  */
22 static int booti_start(cmd_tbl_t *cmdtp, int flag, int argc,
23                         char * const argv[], bootm_headers_t *images)
24 {
25         int ret;
26         ulong ld;
27         ulong relocated_addr;
28         ulong image_size;
29
30         ret = do_bootm_states(cmdtp, flag, argc, argv, BOOTM_STATE_START,
31                               images, 1);
32
33         /* Setup Linux kernel Image entry point */
34         if (!argc) {
35                 ld = load_addr;
36                 debug("*  kernel: default image load address = 0x%08lx\n",
37                                 load_addr);
38         } else {
39                 ld = simple_strtoul(argv[0], NULL, 16);
40                 debug("*  kernel: cmdline image address = 0x%08lx\n",
41                         images->ep);
42         }
43
44         ret = booti_setup(ld, &relocated_addr, &image_size);
45         if (ret != 0)
46                 return 1;
47
48         /* Handle BOOTM_STATE_LOADOS */
49         if (relocated_addr != ld) {
50                 debug("Moving Image from 0x%lx to 0x%lx\n", ld, relocated_addr);
51                 memmove((void *)relocated_addr, (void *)ld, image_size);
52         }
53
54         images->ep = relocated_addr;
55         lmb_reserve(&images->lmb, images->ep, le32_to_cpu(image_size));
56
57         /*
58          * Handle the BOOTM_STATE_FINDOTHER state ourselves as we do not
59          * have a header that provide this informaiton.
60          */
61         if (bootm_find_images(flag, argc, argv))
62                 return 1;
63
64         return 0;
65 }
66
67 int do_booti(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
68 {
69         int ret;
70
71         /* Consume 'booti' */
72         argc--; argv++;
73
74         if (booti_start(cmdtp, flag, argc, argv, &images))
75                 return 1;
76
77         /*
78          * We are doing the BOOTM_STATE_LOADOS state ourselves, so must
79          * disable interrupts ourselves
80          */
81         bootm_disable_interrupts();
82
83         images.os.os = IH_OS_LINUX;
84         images.os.arch = IH_ARCH_ARM64;
85         ret = do_bootm_states(cmdtp, flag, argc, argv,
86 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
87                               BOOTM_STATE_RAMDISK |
88 #endif
89                               BOOTM_STATE_OS_PREP | BOOTM_STATE_OS_FAKE_GO |
90                               BOOTM_STATE_OS_GO,
91                               &images, 1);
92
93         return ret;
94 }
95
96 #ifdef CONFIG_SYS_LONGHELP
97 static char booti_help_text[] =
98         "[addr [initrd[:size]] [fdt]]\n"
99         "    - boot arm64 Linux Image stored in memory\n"
100         "\tThe argument 'initrd' is optional and specifies the address\n"
101         "\tof an initrd in memory. The optional parameter ':size' allows\n"
102         "\tspecifying the size of a RAW initrd.\n"
103 #if defined(CONFIG_OF_LIBFDT)
104         "\tSince booting a Linux kernel requires a flat device-tree, a\n"
105         "\tthird argument providing the address of the device-tree blob\n"
106         "\tis required. To boot a kernel with a device-tree blob but\n"
107         "\twithout an initrd image, use a '-' for the initrd argument.\n"
108 #endif
109         "";
110 #endif
111
112 U_BOOT_CMD(
113         booti,  CONFIG_SYS_MAXARGS,     1,      do_booti,
114         "boot arm64 Linux Image image from memory", booti_help_text
115 );