mpc5200_simple.c

 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
62define_machine(mpc5200_simple_platform) {
63	.name		= "mpc5200-simple-platform",
64	.compatibles	= board,
65	.setup_arch	= mpc5200_simple_setup_arch,
66	.discover_phbs	= mpc52xx_setup_pci,
67	.init		= mpc52xx_declare_of_platform_devices,
68	.init_IRQ	= mpc52xx_init_irq,
69	.get_irq	= mpc52xx_get_irq,
70	.restart	= mpc52xx_restart,
71};