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1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (c) 2016 Google, Inc
4  */
5 
6 #include <common.h>
7 #include <dm.h>
8 #include <os.h>
9 #include <spl.h>
10 #include <asm/spl.h>
11 #include <asm/state.h>
12 
13 DECLARE_GLOBAL_DATA_PTR;
14 
15 /* SPL / TPL init function */
board_init_f(ulong flag)16 void board_init_f(ulong flag)
17 {
18 	struct sandbox_state *state = state_get_current();
19 
20 	gd->arch.ram_buf = state->ram_buf;
21 	gd->ram_size = state->ram_size;
22 }
23 
spl_boot_device(void)24 u32 spl_boot_device(void)
25 {
26 	return BOOT_DEVICE_BOARD;
27 }
28 
spl_board_load_image(struct spl_image_info * spl_image,struct spl_boot_device * bootdev)29 static int spl_board_load_image(struct spl_image_info *spl_image,
30 				struct spl_boot_device *bootdev)
31 {
32 	char fname[256];
33 	int ret;
34 
35 	ret = os_find_u_boot(fname, sizeof(fname));
36 	if (ret) {
37 		printf("(%s not found, error %d)\n", fname, ret);
38 		return ret;
39 	}
40 
41 	/* Set up spl_image to boot from jump_to_image_no_args() */
42 	spl_image->arg = strdup(fname);
43 	if (!spl_image->arg)
44 		return log_msg_ret("Setup exec filename", -ENOMEM);
45 
46 	return 0;
47 }
48 SPL_LOAD_IMAGE_METHOD("sandbox", 9, BOOT_DEVICE_BOARD, spl_board_load_image);
49 
spl_board_init(void)50 void spl_board_init(void)
51 {
52 	struct sandbox_state *state = state_get_current();
53 	struct udevice *dev;
54 
55 	preloader_console_init();
56 	if (state->show_of_platdata) {
57 		/*
58 		 * Scan all the devices so that we can output their platform
59 		 * data. See sandbox_spl_probe().
60 		 */
61 		printf("Scanning misc devices\n");
62 		for (uclass_first_device(UCLASS_MISC, &dev);
63 		     dev;
64 		     uclass_next_device(&dev))
65 			;
66 	}
67 }
68 
jump_to_image_no_args(struct spl_image_info * spl_image)69 void __noreturn jump_to_image_no_args(struct spl_image_info *spl_image)
70 {
71 	const char *fname = spl_image->arg;
72 
73 	if (fname) {
74 		os_fd_restore();
75 		os_spl_to_uboot(fname);
76 	} else {
77 		printf("No filename provided for U-Boot\n");
78 	}
79 	hang();
80 }
81 
handoff_arch_save(struct spl_handoff * ho)82 int handoff_arch_save(struct spl_handoff *ho)
83 {
84 	ho->arch.magic = TEST_HANDOFF_MAGIC;
85 
86 	return 0;
87 }
88