1/*
2 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
3 *
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
5 *
6 * Copyright 2008 Freescale Semiconductor Inc.
7 *
8 * Copyright (c) 2005-2006 DENX Software Engineering
9 * Stefan Roese <sr@denx.de>
10 *
11 * Based on original work by
12 * 	Kumar Gala <kumar.gala@freescale.com>
13 *      Copyright 2004 Freescale Semiconductor Inc.
14 *
15 * This program is free software; you can redistribute  it and/or modify it
16 * under  the terms of  the GNU General  Public License as published by the
17 * Free Software Foundation;  either version 2 of the  License, or (at your
18 * option) any later version.
19 */
20
21#include <linux/stddef.h>
22#include <linux/kernel.h>
23#include <linux/pci.h>
24#include <linux/kdev_t.h>
25#include <linux/delay.h>
26#include <linux/seq_file.h>
27#include <linux/of_platform.h>
28
29#include <asm/time.h>
30#include <asm/machdep.h>
31#include <asm/pci-bridge.h>
32#include <asm/mpic.h>
33#include <asm/prom.h>
34#include <mm/mmu_decl.h>
35#include <asm/udbg.h>
36
37#include <sysdev/fsl_soc.h>
38#include <sysdev/fsl_pci.h>
39
40#include "mpc85xx.h"
41
42#ifdef CONFIG_CPM2
43#include <asm/cpm2.h>
44#endif /* CONFIG_CPM2 */
45
46static void __init tqm85xx_pic_init(void)
47{
48	struct mpic *mpic = mpic_alloc(NULL, 0,
49			MPIC_BIG_ENDIAN,
50			0, 256, " OpenPIC  ");
51	BUG_ON(mpic == NULL);
52	mpic_init(mpic);
53
54	mpc85xx_cpm2_pic_init();
55}
56
57/*
58 * Setup the architecture
59 */
60static void __init tqm85xx_setup_arch(void)
61{
62	if (ppc_md.progress)
63		ppc_md.progress("tqm85xx_setup_arch()", 0);
64
65#ifdef CONFIG_CPM2
66	cpm2_reset();
67#endif
68
69	fsl_pci_assign_primary();
70}
71
72static void tqm85xx_show_cpuinfo(struct seq_file *m)
73{
74	uint pvid, svid, phid1;
75
76	pvid = mfspr(SPRN_PVR);
77	svid = mfspr(SPRN_SVR);
78
79	seq_printf(m, "Vendor\t\t: TQ Components\n");
80	seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
81	seq_printf(m, "SVR\t\t: 0x%x\n", svid);
82
83	/* Display cpu Pll setting */
84	phid1 = mfspr(SPRN_HID1);
85	seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
86}
87
88static void tqm85xx_ti1520_fixup(struct pci_dev *pdev)
89{
90	unsigned int val;
91
92	/* Do not do the fixup on other platforms! */
93	if (!machine_is(tqm85xx))
94		return;
95
96	dev_info(&pdev->dev, "Using TI 1520 fixup on TQM85xx\n");
97
98	/*
99	 * Enable P2CCLK bit in system control register
100	 * to enable CLOCK output to power chip
101	 */
102	pci_read_config_dword(pdev, 0x80, &val);
103	pci_write_config_dword(pdev, 0x80, val | (1 << 27));
104
105}
106DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_TI, PCI_DEVICE_ID_TI_1520,
107		tqm85xx_ti1520_fixup);
108
109machine_arch_initcall(tqm85xx, mpc85xx_common_publish_devices);
110
111static const char * const board[] __initconst = {
112	"tqc,tqm8540",
113	"tqc,tqm8541",
114	"tqc,tqm8548",
115	"tqc,tqm8555",
116	"tqc,tqm8560",
117	NULL
118};
119
120/*
121 * Called very early, device-tree isn't unflattened
122 */
123static int __init tqm85xx_probe(void)
124{
125	return of_flat_dt_match(of_get_flat_dt_root(), board);
126}
127
128define_machine(tqm85xx) {
129	.name			= "TQM85xx",
130	.probe			= tqm85xx_probe,
131	.setup_arch		= tqm85xx_setup_arch,
132	.init_IRQ		= tqm85xx_pic_init,
133	.show_cpuinfo		= tqm85xx_show_cpuinfo,
134	.get_irq		= mpic_get_irq,
135	.restart		= fsl_rstcr_restart,
136	.calibrate_decr		= generic_calibrate_decr,
137	.progress		= udbg_progress,
138};
139