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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ppc40x_simple.c (2081B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Generic PowerPC 40x platform support
      4 *
      5 * Copyright 2008 IBM Corporation
      6 *
      7 * This implements simple platform support for PowerPC 44x chips.  This is
      8 * mostly used for eval boards or other simple and "generic" 44x boards.  If
      9 * your board has custom functions or hardware, then you will likely want to
     10 * implement your own board.c file to accommodate it.
     11 */
     12
     13#include <asm/machdep.h>
     14#include <asm/pci-bridge.h>
     15#include <asm/ppc4xx.h>
     16#include <asm/time.h>
     17#include <asm/udbg.h>
     18#include <asm/uic.h>
     19
     20#include <linux/init.h>
     21#include <linux/of_platform.h>
     22
     23static const struct of_device_id ppc40x_of_bus[] __initconst = {
     24	{ .compatible = "ibm,plb3", },
     25	{ .compatible = "ibm,plb4", },
     26	{ .compatible = "ibm,opb", },
     27	{ .compatible = "ibm,ebc", },
     28	{ .compatible = "simple-bus", },
     29	{},
     30};
     31
     32static int __init ppc40x_device_probe(void)
     33{
     34	of_platform_bus_probe(NULL, ppc40x_of_bus, NULL);
     35
     36	return 0;
     37}
     38machine_device_initcall(ppc40x_simple, ppc40x_device_probe);
     39
     40/* This is the list of boards that can be supported by this simple
     41 * platform code.  This does _not_ mean the boards are compatible,
     42 * as they most certainly are not from a device tree perspective.
     43 * However, their differences are handled by the device tree and the
     44 * drivers and therefore they don't need custom board support files.
     45 *
     46 * Again, if your board needs to do things differently then create a
     47 * board.c file for it rather than adding it to this list.
     48 */
     49static const char * const board[] __initconst = {
     50	"amcc,acadia",
     51	"amcc,haleakala",
     52	"amcc,kilauea",
     53	"amcc,makalu",
     54	"apm,klondike",
     55	"est,hotfoot",
     56	"plathome,obs600",
     57	NULL
     58};
     59
     60static int __init ppc40x_probe(void)
     61{
     62	if (of_device_compatible_match(of_root, board)) {
     63		pci_set_flags(PCI_REASSIGN_ALL_RSRC);
     64		return 1;
     65	}
     66
     67	return 0;
     68}
     69
     70define_machine(ppc40x_simple) {
     71	.name = "PowerPC 40x Platform",
     72	.probe = ppc40x_probe,
     73	.progress = udbg_progress,
     74	.init_IRQ = uic_init_tree,
     75	.get_irq = uic_get_irq,
     76	.restart = ppc4xx_reset_system,
     77	.calibrate_decr = generic_calibrate_decr,
     78};