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Commit | Line | Data |
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2262cfee WD |
1 | /* |
2 | * (C) Copyright 2002 | |
3 | * Sysgo Real-Time Solutions, GmbH <www.elinos.com> | |
4 | * Marius Groeger <mgroeger@sysgo.de> | |
5 | * | |
6 | * Copyright (C) 2001 Erik Mouw (J.A.K.Mouw@its.tudelft.nl) | |
7 | * | |
1a459660 | 8 | * SPDX-License-Identifier: GPL-2.0+ |
2262cfee WD |
9 | */ |
10 | ||
11 | #include <common.h> | |
12 | #include <command.h> | |
7025b054 SR |
13 | #include <dm/device.h> |
14 | #include <dm/root.h> | |
76539383 | 15 | #include <errno.h> |
0d0ba59c | 16 | #include <fdt_support.h> |
2262cfee | 17 | #include <image.h> |
a31e091a | 18 | #include <u-boot/zlib.h> |
69370d14 | 19 | #include <asm/bootparam.h> |
61643ae6 | 20 | #include <asm/cpu.h> |
2262cfee WD |
21 | #include <asm/byteorder.h> |
22 | #include <asm/zimage.h> | |
0d0ba59c SG |
23 | #ifdef CONFIG_SYS_COREBOOT |
24 | #include <asm/arch/timestamp.h> | |
25 | #endif | |
2262cfee | 26 | |
8b097916 SG |
27 | DECLARE_GLOBAL_DATA_PTR; |
28 | ||
69370d14 GB |
29 | #define COMMAND_LINE_OFFSET 0x9000 |
30 | ||
63c09417 MY |
31 | int arch_fixup_fdt(void *blob) |
32 | { | |
33 | return 0; | |
34 | } | |
35 | ||
b7b8410a AG |
36 | __weak void board_quiesce_devices(void) |
37 | { | |
38 | } | |
39 | ||
0d0ba59c SG |
40 | void bootm_announce_and_cleanup(void) |
41 | { | |
42 | printf("\nStarting kernel ...\n\n"); | |
43 | ||
44 | #ifdef CONFIG_SYS_COREBOOT | |
45 | timestamp_add_now(TS_U_BOOT_START_KERNEL); | |
46 | #endif | |
47 | bootstage_mark_name(BOOTSTAGE_ID_BOOTM_HANDOFF, "start_kernel"); | |
48 | #ifdef CONFIG_BOOTSTAGE_REPORT | |
49 | bootstage_report(); | |
cd7c596e | 50 | #endif |
7025b054 SR |
51 | |
52 | /* | |
53 | * Call remove function of all devices with a removal flag set. | |
54 | * This may be useful for last-stage operations, like cancelling | |
55 | * of DMA operation or releasing device internal buffers. | |
56 | */ | |
57 | dm_remove_devices_flags(DM_REMOVE_ACTIVE_ALL); | |
0d0ba59c | 58 | } |
8bde7f77 | 59 | |
0d0ba59c SG |
60 | #if defined(CONFIG_OF_LIBFDT) && !defined(CONFIG_OF_NO_KERNEL) |
61 | int arch_fixup_memory_node(void *blob) | |
62 | { | |
63 | bd_t *bd = gd->bd; | |
64 | int bank; | |
65 | u64 start[CONFIG_NR_DRAM_BANKS]; | |
66 | u64 size[CONFIG_NR_DRAM_BANKS]; | |
67 | ||
68 | for (bank = 0; bank < CONFIG_NR_DRAM_BANKS; bank++) { | |
69 | start[bank] = bd->bi_dram[bank].start; | |
70 | size[bank] = bd->bi_dram[bank].size; | |
71 | } | |
72 | ||
73 | return fdt_fixup_memory_banks(blob, start, size, CONFIG_NR_DRAM_BANKS); | |
74 | } | |
75 | #endif | |
49c3a861 | 76 | |
0d0ba59c SG |
77 | /* Subcommand: PREP */ |
78 | static int boot_prep_linux(bootm_headers_t *images) | |
79 | { | |
80 | char *cmd_line_dest = NULL; | |
81 | image_header_t *hdr; | |
82 | int is_zimage = 0; | |
83 | void *data = NULL; | |
84 | size_t len; | |
85 | int ret; | |
86 | ||
87 | #ifdef CONFIG_OF_LIBFDT | |
88 | if (images->ft_len) { | |
89 | debug("using: FDT\n"); | |
90 | if (image_setup_linux(images)) { | |
91 | puts("FDT creation failed! hanging..."); | |
92 | hang(); | |
93 | } | |
94 | } | |
95 | #endif | |
d5934ad7 MB |
96 | if (images->legacy_hdr_valid) { |
97 | hdr = images->legacy_hdr_os; | |
83088afb | 98 | if (image_check_type(hdr, IH_TYPE_MULTI)) { |
0d0ba59c SG |
99 | ulong os_data, os_len; |
100 | ||
d5934ad7 | 101 | /* if multi-part image, we need to get first subimage */ |
83088afb | 102 | image_multi_getimg(hdr, 0, &os_data, &os_len); |
0d0ba59c SG |
103 | data = (void *)os_data; |
104 | len = os_len; | |
d5934ad7 MB |
105 | } else { |
106 | /* otherwise get image data */ | |
0d0ba59c SG |
107 | data = (void *)image_get_data(hdr); |
108 | len = image_get_data_size(hdr); | |
d5934ad7 | 109 | } |
0d0ba59c | 110 | is_zimage = 1; |
d5934ad7 | 111 | #if defined(CONFIG_FIT) |
25475249 | 112 | } else if (images->fit_uname_os && is_zimage) { |
83088afb | 113 | ret = fit_image_get_data(images->fit_hdr_os, |
0d0ba59c SG |
114 | images->fit_noffset_os, |
115 | (const void **)&data, &len); | |
cd7c596e | 116 | if (ret) { |
83088afb | 117 | puts("Can't get image data/size!\n"); |
cd7c596e MB |
118 | goto error; |
119 | } | |
0d0ba59c | 120 | is_zimage = 1; |
d5934ad7 | 121 | #endif |
e644670b WD |
122 | } |
123 | ||
0d0ba59c | 124 | if (is_zimage) { |
76539383 | 125 | ulong load_address; |
0d0ba59c | 126 | char *base_ptr; |
2262cfee | 127 | |
0d0ba59c | 128 | base_ptr = (char *)load_zimage(data, len, &load_address); |
76539383 | 129 | images->os.load = load_address; |
0d0ba59c SG |
130 | cmd_line_dest = base_ptr + COMMAND_LINE_OFFSET; |
131 | images->ep = (ulong)base_ptr; | |
132 | } else if (images->ep) { | |
133 | cmd_line_dest = (void *)images->ep + COMMAND_LINE_OFFSET; | |
134 | } else { | |
2c363cb0 | 135 | printf("## Kernel loading failed (missing x86 kernel setup) ...\n"); |
cd7c596e | 136 | goto error; |
69370d14 | 137 | } |
8bde7f77 | 138 | |
0d0ba59c SG |
139 | printf("Setup at %#08lx\n", images->ep); |
140 | ret = setup_zimage((void *)images->ep, cmd_line_dest, | |
69370d14 | 141 | 0, images->rd_start, |
0d0ba59c SG |
142 | images->rd_end - images->rd_start); |
143 | ||
144 | if (ret) { | |
69370d14 | 145 | printf("## Setting up boot parameters failed ...\n"); |
0d0ba59c | 146 | return 1; |
2262cfee | 147 | } |
8bde7f77 | 148 | |
0d0ba59c | 149 | return 0; |
2262cfee | 150 | |
cd7c596e | 151 | error: |
40d7e99d | 152 | return 1; |
8bde7f77 | 153 | } |
0d0ba59c | 154 | |
76539383 SG |
155 | int boot_linux_kernel(ulong setup_base, ulong load_address, bool image_64bit) |
156 | { | |
157 | bootm_announce_and_cleanup(); | |
158 | ||
159 | #ifdef CONFIG_SYS_COREBOOT | |
160 | timestamp_add_now(TS_U_BOOT_START_KERNEL); | |
161 | #endif | |
162 | if (image_64bit) { | |
61643ae6 SG |
163 | if (!cpu_has_64bit()) { |
164 | puts("Cannot boot 64-bit kernel on 32-bit machine\n"); | |
165 | return -EFAULT; | |
166 | } | |
23b89d4d SG |
167 | /* At present 64-bit U-Boot does not support booting a |
168 | * kernel. | |
169 | * TODO(sjg@chromium.org): Support booting both 32-bit and | |
170 | * 64-bit kernels from 64-bit U-Boot. | |
171 | */ | |
172 | #if !CONFIG_IS_ENABLED(X86_64) | |
61643ae6 | 173 | return cpu_jump_to_64bit(setup_base, load_address); |
23b89d4d | 174 | #endif |
76539383 SG |
175 | } else { |
176 | /* | |
177 | * Set %ebx, %ebp, and %edi to 0, %esi to point to the | |
178 | * boot_params structure, and then jump to the kernel. We | |
179 | * assume that %cs is 0x10, 4GB flat, and read/execute, and | |
180 | * the data segments are 0x18, 4GB flat, and read/write. | |
a187559e | 181 | * U-Boot is setting them up that way for itself in |
76539383 | 182 | * arch/i386/cpu/cpu.c. |
e49cceac SG |
183 | * |
184 | * Note that we cannot currently boot a kernel while running as | |
185 | * an EFI application. Please use the payload option for that. | |
76539383 | 186 | */ |
e49cceac | 187 | #ifndef CONFIG_EFI_APP |
76539383 SG |
188 | __asm__ __volatile__ ( |
189 | "movl $0, %%ebp\n" | |
190 | "cli\n" | |
191 | "jmp *%[kernel_entry]\n" | |
192 | :: [kernel_entry]"a"(load_address), | |
193 | [boot_params] "S"(setup_base), | |
194 | "b"(0), "D"(0) | |
195 | ); | |
e49cceac | 196 | #endif |
76539383 SG |
197 | } |
198 | ||
199 | /* We can't get to here */ | |
200 | return -EFAULT; | |
201 | } | |
202 | ||
0d0ba59c SG |
203 | /* Subcommand: GO */ |
204 | static int boot_jump_linux(bootm_headers_t *images) | |
205 | { | |
206 | debug("## Transferring control to Linux (at address %08lx, kernel %08lx) ...\n", | |
207 | images->ep, images->os.load); | |
208 | ||
61643ae6 SG |
209 | return boot_linux_kernel(images->ep, images->os.load, |
210 | images->os.arch == IH_ARCH_X86_64); | |
0d0ba59c SG |
211 | } |
212 | ||
213 | int do_bootm_linux(int flag, int argc, char * const argv[], | |
214 | bootm_headers_t *images) | |
215 | { | |
216 | /* No need for those on x86 */ | |
217 | if (flag & BOOTM_STATE_OS_BD_T || flag & BOOTM_STATE_OS_CMDLINE) | |
218 | return -1; | |
219 | ||
220 | if (flag & BOOTM_STATE_OS_PREP) | |
221 | return boot_prep_linux(images); | |
222 | ||
76539383 SG |
223 | if (flag & BOOTM_STATE_OS_GO) |
224 | return boot_jump_linux(images); | |
0d0ba59c SG |
225 | |
226 | return boot_jump_linux(images); | |
227 | } |