Function fdt_install_initrd

components/drivers/ofw/raw.c:130–197

}

int fdt_install_initrd(void *fdt, char *os_name, size_t initrd_addr, size_t initrd_size)
{
    int err = -FDT_ERR_NOTFOUND;
    int chosen_offset = -1, root_off = fdt_path_offset(fdt, "/");

    if (root_off >= 0)
    {
        chosen_offset = fdt_subnode_offset(fdt, root_off, "chosen");

        if (chosen_offset == -FDT_ERR_NOTFOUND)
        {
            chosen_offset = fdt_add_subnode_possible(fdt, root_off, "chosen");
        }
    }

    if (chosen_offset >= 0)
    {
        uint64_t addr, size;

        err = 0;

        /* Update the entry */
        for (int i = fdt_num_mem_rsv(fdt) - 1; i >= 0; --i)
        {
            fdt_get_mem_rsv(fdt, i, &addr, &size);

            if (addr == initrd_addr)
            {
                fdt_del_mem_rsv(fdt, i);
                break;
            }
        }

        /* Add the memory */
        if (fdt_add_mem_rsv(fdt, initrd_addr, initrd_size) < 0)
        {
            /* Move the memory */
            fdt_open_into(fdt, fdt, fdt_totalsize(fdt) + FDT_PADDING_SIZE);

            if (fdt_add_mem_rsv(fdt, initrd_addr, initrd_size) < 0)
            {
                err = -FDT_ERR_NOSPACE;
            }
        }

        if (!err)
        {
            size_t name_len;
            char initrd_name[64];
            bool is_u64 = (fdt_io_addr_cells(fdt, root_off) == 2);

            if (!os_name)
            {
                os_name = "rt-thread";
            }

            name_len = strlen(initrd_name);