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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mpc5200_simple.c (2176B)

      1// SPDX-License-Identifier: GPL-2.0-or-later
      2/*
      3 * Support for 'mpc5200-simple-platform' compatible boards.
      4 *
      5 * Written by Marian Balakowicz <m8@semihalf.com>
      6 * Copyright (C) 2007 Semihalf
      7 *
      8 * Description:
      9 * This code implements support for a simple MPC52xx based boards which
     10 * do not need a custom platform specific setup. Such boards are
     11 * supported assuming the following:
     12 *
     13 * - GPIO pins are configured by the firmware,
     14 * - CDM configuration (clocking) is setup correctly by firmware,
     15 * - if the 'fsl,has-wdt' property is present in one of the
     16 *   gpt nodes, then it is safe to use such gpt to reset the board,
     17 * - PCI is supported if enabled in the kernel configuration
     18 *   and if there is a PCI bus node defined in the device tree.
     19 *
     20 * Boards that are compatible with this generic platform support
     21 * are listed in a 'board' table.
     22 */
     23
     24#undef DEBUG
     25#include <linux/of.h>
     26#include <asm/time.h>
     27#include <asm/machdep.h>
     28#include <asm/mpc52xx.h>
     29
     30/*
     31 * Setup the architecture
     32 */
     33static void __init mpc5200_simple_setup_arch(void)
     34{
     35	if (ppc_md.progress)
     36		ppc_md.progress("mpc5200_simple_setup_arch()", 0);
     37
     38	/* Map important registers from the internal memory map */
     39	mpc52xx_map_common_devices();
     40
     41	/* Some mpc5200 & mpc5200b related configuration */
     42	mpc5200_setup_xlb_arbiter();
     43}
     44
     45/* list of the supported boards */
     46static const char *board[] __initdata = {
     47	"anonymous,a3m071",
     48	"anonymous,a4m072",
     49	"anon,charon",
     50	"ifm,o2d",
     51	"intercontrol,digsy-mtc",
     52	"manroland,mucmc52",
     53	"manroland,uc101",
     54	"phytec,pcm030",
     55	"phytec,pcm032",
     56	"promess,motionpro",
     57	"schindler,cm5200",
     58	"tqc,tqm5200",
     59	NULL
     60};
     61
     62/*
     63 * Called very early, MMU is off, device-tree isn't unflattened
     64 */
     65static int __init mpc5200_simple_probe(void)
     66{
     67	return of_device_compatible_match(of_root, board);
     68}
     69
     70define_machine(mpc5200_simple_platform) {
     71	.name		= "mpc5200-simple-platform",
     72	.probe		= mpc5200_simple_probe,
     73	.setup_arch	= mpc5200_simple_setup_arch,
     74	.discover_phbs	= mpc52xx_setup_pci,
     75	.init		= mpc52xx_declare_of_platform_devices,
     76	.init_IRQ	= mpc52xx_init_irq,
     77	.get_irq	= mpc52xx_get_irq,
     78	.restart	= mpc52xx_restart,
     79	.calibrate_decr	= generic_calibrate_decr,
     80};