1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * Copyright (C) 2018, Bin Meng <bmeng.cn@gmail.com>
4  */
5 
6 #include <common.h>
7 #include <dm.h>
8 #include <env.h>
9 #include <fdtdec.h>
10 #include <image.h>
11 #include <log.h>
12 #include <spl.h>
13 #include <init.h>
14 #include <virtio_types.h>
15 #include <virtio.h>
16 
board_init(void)17 int board_init(void)
18 {
19 	/*
20 	 * Make sure virtio bus is enumerated so that peripherals
21 	 * on the virtio bus can be discovered by their drivers
22 	 */
23 	virtio_init();
24 
25 	return 0;
26 }
27 
board_late_init(void)28 int board_late_init(void)
29 {
30 	ulong kernel_start;
31 	ofnode chosen_node;
32 	int ret;
33 
34 	chosen_node = ofnode_path("/chosen");
35 	if (!ofnode_valid(chosen_node)) {
36 		debug("No chosen node found, can't get kernel start address\n");
37 		return 0;
38 	}
39 
40 #ifdef CONFIG_ARCH_RV64I
41 	ret = ofnode_read_u64(chosen_node, "riscv,kernel-start",
42 			      (u64 *)&kernel_start);
43 #else
44 	ret = ofnode_read_u32(chosen_node, "riscv,kernel-start",
45 			      (u32 *)&kernel_start);
46 #endif
47 	if (ret) {
48 		debug("Can't find kernel start address in device tree\n");
49 		return 0;
50 	}
51 
52 	env_set_hex("kernel_start", kernel_start);
53 
54 	return 0;
55 }
56 
57 #ifdef CONFIG_SPL
spl_boot_device(void)58 u32 spl_boot_device(void)
59 {
60 	/* RISC-V QEMU only supports RAM as SPL boot device */
61 	return BOOT_DEVICE_RAM;
62 }
63 #endif
64 
65 #ifdef CONFIG_SPL_LOAD_FIT
board_fit_config_name_match(const char * name)66 int board_fit_config_name_match(const char *name)
67 {
68 	/* boot using first FIT config */
69 	return 0;
70 }
71 #endif
72