1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * Based on MPC8560 ADS and arch/ppc stx_gp3 ports
4 *
5 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
6 *
7 * Copyright 2008 Freescale Semiconductor Inc.
8 *
9 * Dan Malek <dan@embeddededge.com>
10 * Copyright 2004 Embedded Edge, LLC
11 *
12 * Copied from mpc8560_ads.c
13 * Copyright 2002, 2003 Motorola Inc.
14 *
15 * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org>
16 * Copyright 2004-2005 MontaVista Software, Inc.
17 */
18
19#include <linux/stddef.h>
20#include <linux/kernel.h>
21#include <linux/pci.h>
22#include <linux/kdev_t.h>
23#include <linux/delay.h>
24#include <linux/seq_file.h>
25#include <linux/of_platform.h>
26
27#include <asm/time.h>
28#include <asm/machdep.h>
29#include <asm/pci-bridge.h>
30#include <asm/mpic.h>
31#include <asm/prom.h>
32#include <mm/mmu_decl.h>
33#include <asm/udbg.h>
34
35#include <sysdev/fsl_soc.h>
36#include <sysdev/fsl_pci.h>
37
38#include "mpc85xx.h"
39
40#ifdef CONFIG_CPM2
41#include <asm/cpm2.h>
42#endif /* CONFIG_CPM2 */
43
44static void __init stx_gp3_pic_init(void)
45{
46	struct mpic *mpic = mpic_alloc(NULL, 0, MPIC_BIG_ENDIAN,
47			0, 256, " OpenPIC  ");
48	BUG_ON(mpic == NULL);
49	mpic_init(mpic);
50
51	mpc85xx_cpm2_pic_init();
52}
53
54/*
55 * Setup the architecture
56 */
57static void __init stx_gp3_setup_arch(void)
58{
59	if (ppc_md.progress)
60		ppc_md.progress("stx_gp3_setup_arch()", 0);
61
62	fsl_pci_assign_primary();
63
64#ifdef CONFIG_CPM2
65	cpm2_reset();
66#endif
67}
68
69static void stx_gp3_show_cpuinfo(struct seq_file *m)
70{
71	uint pvid, svid, phid1;
72
73	pvid = mfspr(SPRN_PVR);
74	svid = mfspr(SPRN_SVR);
75
76	seq_printf(m, "Vendor\t\t: RPC Electronics STx\n");
77	seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
78	seq_printf(m, "SVR\t\t: 0x%x\n", svid);
79
80	/* Display cpu Pll setting */
81	phid1 = mfspr(SPRN_HID1);
82	seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
83}
84
85machine_arch_initcall(stx_gp3, mpc85xx_common_publish_devices);
86
87/*
88 * Called very early, device-tree isn't unflattened
89 */
90static int __init stx_gp3_probe(void)
91{
92	return of_machine_is_compatible("stx,gp3-8560");
93}
94
95define_machine(stx_gp3) {
96	.name			= "STX GP3",
97	.probe			= stx_gp3_probe,
98	.setup_arch		= stx_gp3_setup_arch,
99	.init_IRQ		= stx_gp3_pic_init,
100	.show_cpuinfo		= stx_gp3_show_cpuinfo,
101	.get_irq		= mpic_get_irq,
102	.calibrate_decr		= generic_calibrate_decr,
103	.progress		= udbg_progress,
104};
105