Merge tag 'xilinx-for-v2022.04-rc3' of https://gitlab.denx.de/u-boot/custodians/u...
[platform/kernel/u-boot.git] / board / emulation / qemu-riscv / qemu-riscv.c
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 <dm/ofnode.h>
9 #include <env.h>
10 #include <fdtdec.h>
11 #include <image.h>
12 #include <log.h>
13 #include <spl.h>
14 #include <init.h>
15 #include <virtio_types.h>
16 #include <virtio.h>
17
18 DECLARE_GLOBAL_DATA_PTR;
19
20 #if IS_ENABLED(CONFIG_MTD_NOR_FLASH)
21 int is_flash_available(void)
22 {
23         if (!ofnode_equal(ofnode_by_compatible(ofnode_null(), "cfi-flash"),
24                           ofnode_null()))
25                 return 1;
26
27         return 0;
28 }
29 #endif
30
31 int board_init(void)
32 {
33         /*
34          * Make sure virtio bus is enumerated so that peripherals
35          * on the virtio bus can be discovered by their drivers
36          */
37         virtio_init();
38
39         return 0;
40 }
41
42 int board_late_init(void)
43 {
44         ulong kernel_start;
45         ofnode chosen_node;
46         int ret;
47
48         chosen_node = ofnode_path("/chosen");
49         if (!ofnode_valid(chosen_node)) {
50                 debug("No chosen node found, can't get kernel start address\n");
51                 return 0;
52         }
53
54 #ifdef CONFIG_ARCH_RV64I
55         ret = ofnode_read_u64(chosen_node, "riscv,kernel-start",
56                               (u64 *)&kernel_start);
57 #else
58         ret = ofnode_read_u32(chosen_node, "riscv,kernel-start",
59                               (u32 *)&kernel_start);
60 #endif
61         if (ret) {
62                 debug("Can't find kernel start address in device tree\n");
63                 return 0;
64         }
65
66         env_set_hex("kernel_start", kernel_start);
67
68         return 0;
69 }
70
71 #ifdef CONFIG_SPL
72 u32 spl_boot_device(void)
73 {
74         /* RISC-V QEMU only supports RAM as SPL boot device */
75         return BOOT_DEVICE_RAM;
76 }
77 #endif
78
79 #ifdef CONFIG_SPL_LOAD_FIT
80 int board_fit_config_name_match(const char *name)
81 {
82         /* boot using first FIT config */
83         return 0;
84 }
85 #endif
86
87 void *board_fdt_blob_setup(int *err)
88 {
89         *err = 0;
90         /* Stored the DTB address there during our init */
91         return (void *)(ulong)gd->arch.firmware_fdt_addr;
92 }