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
mpc834x_itx_declare_of_platform_devices(void)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 */
mpc834x_itx_setup_arch(void)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 */
mpc834x_itx_probe(void)64 static int __init mpc834x_itx_probe(void)
65 {
66 return of_machine_is_compatible("MPC834xMITX");
67 }
68
define_machine(mpc834x_itx)69 define_machine(mpc834x_itx) {
70 .name = "MPC834x ITX",
71 .probe = mpc834x_itx_probe,
72 .setup_arch = mpc834x_itx_setup_arch,
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