1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Copyright 2006 Freescale Semiconductor, Inc. All rights reserved.
4 *
5 * Description:
6 * MPC832xE MDS board specific routines.
7 */
8
9#include <linux/stddef.h>
10#include <linux/kernel.h>
11#include <linux/init.h>
12#include <linux/errno.h>
13#include <linux/reboot.h>
14#include <linux/pci.h>
15#include <linux/kdev_t.h>
16#include <linux/major.h>
17#include <linux/console.h>
18#include <linux/delay.h>
19#include <linux/seq_file.h>
20#include <linux/root_dev.h>
21#include <linux/initrd.h>
22#include <linux/of_platform.h>
23#include <linux/of_device.h>
24
25#include <linux/atomic.h>
26#include <asm/time.h>
27#include <asm/io.h>
28#include <asm/machdep.h>
29#include <asm/ipic.h>
30#include <asm/irq.h>
31#include <asm/prom.h>
32#include <asm/udbg.h>
33#include <sysdev/fsl_soc.h>
34#include <sysdev/fsl_pci.h>
35#include <soc/fsl/qe/qe.h>
36
37#include "mpc83xx.h"
38
39#undef DEBUG
40#ifdef DEBUG
41#define DBG(fmt...) udbg_printf(fmt)
42#else
43#define DBG(fmt...)
44#endif
45
46/* ************************************************************************
47 *
48 * Setup the architecture
49 *
50 */
51static void __init mpc832x_sys_setup_arch(void)
52{
53	struct device_node *np;
54	u8 __iomem *bcsr_regs = NULL;
55
56	mpc83xx_setup_arch();
57
58	/* Map BCSR area */
59	np = of_find_node_by_name(NULL, "bcsr");
60	if (np) {
61		struct resource res;
62
63		of_address_to_resource(np, 0, &res);
64		bcsr_regs = ioremap(res.start, resource_size(&res));
65		of_node_put(np);
66	}
67
68#ifdef CONFIG_QUICC_ENGINE
69	if ((np = of_find_node_by_name(NULL, "par_io")) != NULL) {
70		par_io_init(np);
71		of_node_put(np);
72
73		for_each_node_by_name(np, "ucc")
74			par_io_of_config(np);
75	}
76
77	if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
78			!= NULL){
79		/* Reset the Ethernet PHYs */
80#define BCSR8_FETH_RST 0x50
81		clrbits8(&bcsr_regs[8], BCSR8_FETH_RST);
82		udelay(1000);
83		setbits8(&bcsr_regs[8], BCSR8_FETH_RST);
84		iounmap(bcsr_regs);
85		of_node_put(np);
86	}
87#endif				/* CONFIG_QUICC_ENGINE */
88}
89
90machine_device_initcall(mpc832x_mds, mpc83xx_declare_of_platform_devices);
91
92/*
93 * Called very early, MMU is off, device-tree isn't unflattened
94 */
95static int __init mpc832x_sys_probe(void)
96{
97	return of_machine_is_compatible("MPC832xMDS");
98}
99
100define_machine(mpc832x_mds) {
101	.name 		= "MPC832x MDS",
102	.probe 		= mpc832x_sys_probe,
103	.setup_arch 	= mpc832x_sys_setup_arch,
104	.init_IRQ	= mpc83xx_ipic_init_IRQ,
105	.get_irq 	= ipic_get_irq,
106	.restart 	= mpc83xx_restart,
107	.time_init 	= mpc83xx_time_init,
108	.calibrate_decr	= generic_calibrate_decr,
109	.progress 	= udbg_progress,
110};
111