cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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socrates.c (2038B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Copyright (c) 2008 Emcraft Systems
      4 * Sergei Poselenov <sposelenov@emcraft.com>
      5 *
      6 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
      7 *
      8 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
      9 *
     10 * Copyright 2008 Freescale Semiconductor Inc.
     11 *
     12 * Copyright (c) 2005-2006 DENX Software Engineering
     13 * Stefan Roese <sr@denx.de>
     14 *
     15 * Based on original work by
     16 * 	Kumar Gala <kumar.gala@freescale.com>
     17 *      Copyright 2004 Freescale Semiconductor Inc.
     18 */
     19
     20#include <linux/stddef.h>
     21#include <linux/kernel.h>
     22#include <linux/pci.h>
     23#include <linux/kdev_t.h>
     24#include <linux/delay.h>
     25#include <linux/seq_file.h>
     26#include <linux/of_platform.h>
     27
     28#include <asm/time.h>
     29#include <asm/machdep.h>
     30#include <asm/pci-bridge.h>
     31#include <asm/mpic.h>
     32#include <mm/mmu_decl.h>
     33#include <asm/udbg.h>
     34
     35#include <sysdev/fsl_soc.h>
     36#include <sysdev/fsl_pci.h>
     37
     38#include "mpc85xx.h"
     39#include "socrates_fpga_pic.h"
     40
     41static void __init socrates_pic_init(void)
     42{
     43	struct device_node *np;
     44
     45	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
     46			0, 256, " OpenPIC  ");
     47	BUG_ON(mpic == NULL);
     48	mpic_init(mpic);
     49
     50	np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");
     51	if (!np) {
     52		printk(KERN_ERR "Could not find socrates-fpga-pic node\n");
     53		return;
     54	}
     55	socrates_fpga_pic_init(np);
     56	of_node_put(np);
     57}
     58
     59/*
     60 * Setup the architecture
     61 */
     62static void __init socrates_setup_arch(void)
     63{
     64	if (ppc_md.progress)
     65		ppc_md.progress("socrates_setup_arch()", 0);
     66
     67	fsl_pci_assign_primary();
     68}
     69
     70machine_arch_initcall(socrates, mpc85xx_common_publish_devices);
     71
     72/*
     73 * Called very early, device-tree isn't unflattened
     74 */
     75static int __init socrates_probe(void)
     76{
     77	if (of_machine_is_compatible("abb,socrates"))
     78		return 1;
     79
     80	return 0;
     81}
     82
     83define_machine(socrates) {
     84	.name			= "Socrates",
     85	.probe			= socrates_probe,
     86	.setup_arch		= socrates_setup_arch,
     87	.init_IRQ		= socrates_pic_init,
     88	.get_irq		= mpic_get_irq,
     89	.calibrate_decr		= generic_calibrate_decr,
     90	.progress		= udbg_progress,
     91};