1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3  * arch/powerpc/platforms/83xx/mpc834x_itx.c
4  *
5  * MPC834x ITX board specific routines
6  *
7  * Maintainer: Kumar Gala <galak@kernel.crashing.org>
8  */
9 
10 #include <linux/stddef.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/errno.h>
14 #include <linux/reboot.h>
15 #include <linux/pci.h>
16 #include <linux/kdev_t.h>
17 #include <linux/major.h>
18 #include <linux/console.h>
19 #include <linux/delay.h>
20 #include <linux/seq_file.h>
21 #include <linux/root_dev.h>
22 #include <linux/of_platform.h>
23 
24 #include <linux/atomic.h>
25 #include <asm/time.h>
26 #include <asm/io.h>
27 #include <asm/machdep.h>
28 #include <asm/ipic.h>
29 #include <asm/irq.h>
30 #include <asm/udbg.h>
31 #include <sysdev/fsl_soc.h>
32 #include <sysdev/fsl_pci.h>
33 
34 #include "mpc83xx.h"
35 
36 static const struct of_device_id mpc834x_itx_ids[] __initconst = {
37 	{ .compatible = "fsl,pq2pro-localbus", },
38 	{},
39 };
40 
41 static int __init mpc834x_itx_declare_of_platform_devices(void)
42 {
43 	mpc83xx_declare_of_platform_devices();
44 	return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
45 }
46 machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
47 
48 /* ************************************************************************
49  *
50  * Setup the architecture
51  *
52  */
53 static void __init mpc834x_itx_setup_arch(void)
54 {
55 	mpc83xx_setup_arch();
56 
57 	mpc834x_usb_cfg();
58 }
59 
60 /*
61  * Called very early, MMU is off, device-tree isn't unflattened
62  */
63 static int __init mpc834x_itx_probe(void)
64 {
65 	return of_machine_is_compatible("MPC834xMITX");
66 }
67 
68 define_machine(mpc834x_itx) {
69 	.name			= "MPC834x ITX",
70 	.probe			= mpc834x_itx_probe,
71 	.setup_arch		= mpc834x_itx_setup_arch,
72 	.discover_phbs  	= mpc83xx_setup_pci,
73 	.init_IRQ		= mpc83xx_ipic_init_IRQ,
74 	.get_irq		= ipic_get_irq,
75 	.restart		= mpc83xx_restart,
76 	.time_init		= mpc83xx_time_init,
77 	.calibrate_decr		= generic_calibrate_decr,
78 	.progress		= udbg_progress,
79 };
80