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 9 /* 10 * cleanup_before_linux() is called just before we call linux 11 * it prepares the processor for linux 12 * 13 * we disable interrupt and caches. 14 */ 15 int cleanup_before_linux(void) 16 { 17 disable_interrupts(); 18 19 cache_flush(); 20 21 return 0; 22 } 23 24 /* To enumerate devices on the /soc/ node, create a "simple-bus" driver */ 25 static const struct udevice_id riscv_virtio_soc_ids[] = { 26 { .compatible = "riscv-virtio-soc" }, 27 { } 28 }; 29 30 U_BOOT_DRIVER(riscv_virtio_soc) = { 31 .name = "riscv_virtio_soc", 32 .id = UCLASS_SIMPLE_BUS, 33 .of_match = riscv_virtio_soc_ids, 34 .flags = DM_FLAG_PRE_RELOC, 35 }; 36