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/prom.h>
31 #include <asm/udbg.h>
32 #include <sysdev/fsl_soc.h>
33 #include <sysdev/fsl_pci.h>
34 
35 #include "mpc83xx.h"
36 
37 static const struct of_device_id mpc834x_itx_ids[] __initconst = {
38 	{ .compatible = "fsl,pq2pro-localbus", },
39 	{},
40 };
41 
42 static int __init mpc834x_itx_declare_of_platform_devices(void)
43 {
44 	mpc83xx_declare_of_platform_devices();
45 	return of_platform_bus_probe(NULL, mpc834x_itx_ids, NULL);
46 }
47 machine_device_initcall(mpc834x_itx, mpc834x_itx_declare_of_platform_devices);
48 
49 /* ************************************************************************
50  *
51  * Setup the architecture
52  *
53  */
54 static void __init mpc834x_itx_setup_arch(void)
55 {
56 	mpc83xx_setup_arch();
57 
58 	mpc834x_usb_cfg();
59 }
60 
61 /*
62  * Called very early, MMU is off, device-tree isn't unflattened
63  */
64 static int __init mpc834x_itx_probe(void)
65 {
66 	return of_machine_is_compatible("MPC834xMITX");
67 }
68 
69 define_machine(mpc834x_itx) {
70 	.name			= "MPC834x ITX",
71 	.probe			= mpc834x_itx_probe,
72 	.setup_arch		= mpc834x_itx_setup_arch,
73 	.discover_phbs  	= mpc83xx_setup_pci,
74 	.init_IRQ		= mpc83xx_ipic_init_IRQ,
75 	.get_irq		= ipic_get_irq,
76 	.restart		= mpc83xx_restart,
77 	.time_init		= mpc83xx_time_init,
78 	.calibrate_decr		= generic_calibrate_decr,
79 	.progress		= udbg_progress,
80 };
81