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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ppc44x_simple.c (2180B)

      1// SPDX-License-Identifier: GPL-2.0-only
      2/*
      3 * Generic PowerPC 44x 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 ppc44x_of_bus[] __initconst = {
     24	{ .compatible = "ibm,plb4", },
     25	{ .compatible = "ibm,opb", },
     26	{ .compatible = "ibm,ebc", },
     27	{ .compatible = "simple-bus", },
     28	{},
     29};
     30
     31static int __init ppc44x_device_probe(void)
     32{
     33	of_platform_bus_probe(NULL, ppc44x_of_bus, NULL);
     34
     35	return 0;
     36}
     37machine_device_initcall(ppc44x_simple, ppc44x_device_probe);
     38
     39/* This is the list of boards that can be supported by this simple
     40 * platform code.  This does _not_ mean the boards are compatible,
     41 * as they most certainly are not from a device tree perspective.
     42 * However, their differences are handled by the device tree and the
     43 * drivers and therefore they don't need custom board support files.
     44 *
     45 * Again, if your board needs to do things differently then create a
     46 * board.c file for it rather than adding it to this list.
     47 */
     48static char *board[] __initdata = {
     49	"amcc,arches",
     50	"amcc,bamboo",
     51	"apm,bluestone",
     52	"amcc,glacier",
     53	"ibm,ebony",
     54	"amcc,eiger",
     55	"amcc,katmai",
     56	"amcc,rainier",
     57	"amcc,redwood",
     58	"amcc,sequoia",
     59	"amcc,taishan",
     60	"amcc,yosemite",
     61	"mosaixtech,icon"
     62};
     63
     64static int __init ppc44x_probe(void)
     65{
     66	int i = 0;
     67
     68	for (i = 0; i < ARRAY_SIZE(board); i++) {
     69		if (of_machine_is_compatible(board[i])) {
     70			pci_set_flags(PCI_REASSIGN_ALL_RSRC);
     71			return 1;
     72		}
     73	}
     74
     75	return 0;
     76}
     77
     78define_machine(ppc44x_simple) {
     79	.name = "PowerPC 44x Platform",
     80	.probe = ppc44x_probe,
     81	.progress = udbg_progress,
     82	.init_IRQ = uic_init_tree,
     83	.get_irq = uic_get_irq,
     84	.restart = ppc4xx_reset_system,
     85	.calibrate_decr = generic_calibrate_decr,
     86};