cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

prom.c (896B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Device tree support
      4 *
      5 * Copyright (C) 2013, 2015 Altera Corporation
      6 * Copyright (C) 2010 Thomas Chou <thomas@wytron.com.tw>
      7 *
      8 * Based on MIPS support for CONFIG_OF device tree support
      9 *
     10 * Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com>
     11 */
     12
     13#include <linux/init.h>
     14#include <linux/types.h>
     15#include <linux/memblock.h>
     16#include <linux/of.h>
     17#include <linux/of_fdt.h>
     18#include <linux/io.h>
     19
     20#include <asm/sections.h>
     21
     22void __init early_init_devtree(void *params)
     23{
     24	__be32 *dtb = (u32 *)__dtb_start;
     25#if defined(CONFIG_NIOS2_DTB_AT_PHYS_ADDR)
     26	if (be32_to_cpup((__be32 *)CONFIG_NIOS2_DTB_PHYS_ADDR) ==
     27		 OF_DT_HEADER) {
     28		params = (void *)CONFIG_NIOS2_DTB_PHYS_ADDR;
     29		early_init_dt_scan(params);
     30		return;
     31	}
     32#endif
     33	if (be32_to_cpu((__be32) *dtb) == OF_DT_HEADER)
     34		params = (void *)__dtb_start;
     35
     36	early_init_dt_scan(params);
     37}