1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright (c) 2008 Emcraft Systems
4 * Sergei Poselenov <sposelenov@emcraft.com>
5 *
6 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
7 *
8 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
9 *
10 * Copyright 2008 Freescale Semiconductor Inc.
11 *
12 * Copyright (c) 2005-2006 DENX Software Engineering
13 * Stefan Roese <sr@denx.de>
14 *
15 * Based on original work by
16 * Kumar Gala <kumar.gala@freescale.com>
17 * Copyright 2004 Freescale Semiconductor Inc.
18 */
19
20 #include <linux/stddef.h>
21 #include <linux/kernel.h>
22 #include <linux/pci.h>
23 #include <linux/kdev_t.h>
24 #include <linux/delay.h>
25 #include <linux/seq_file.h>
26 #include <linux/of_platform.h>
27
28 #include <asm/time.h>
29 #include <asm/machdep.h>
30 #include <asm/pci-bridge.h>
31 #include <asm/mpic.h>
32 #include <asm/prom.h>
33 #include <mm/mmu_decl.h>
34 #include <asm/udbg.h>
35
36 #include <sysdev/fsl_soc.h>
37 #include <sysdev/fsl_pci.h>
38
39 #include "mpc85xx.h"
40 #include "socrates_fpga_pic.h"
41
socrates_pic_init(void)42 static void __init socrates_pic_init(void)
43 {
44 struct device_node *np;
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 np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");
52 if (!np) {
53 printk(KERN_ERR "Could not find socrates-fpga-pic node\n");
54 return;
55 }
56 socrates_fpga_pic_init(np);
57 of_node_put(np);
58 }
59
60 /*
61 * Setup the architecture
62 */
socrates_setup_arch(void)63 static void __init socrates_setup_arch(void)
64 {
65 if (ppc_md.progress)
66 ppc_md.progress("socrates_setup_arch()", 0);
67
68 fsl_pci_assign_primary();
69 }
70
71 machine_arch_initcall(socrates, mpc85xx_common_publish_devices);
72
73 /*
74 * Called very early, device-tree isn't unflattened
75 */
socrates_probe(void)76 static int __init socrates_probe(void)
77 {
78 if (of_machine_is_compatible("abb,socrates"))
79 return 1;
80
81 return 0;
82 }
83
define_machine(socrates)84 define_machine(socrates) {
85 .name = "Socrates",
86 .probe = socrates_probe,
87 .setup_arch = socrates_setup_arch,
88 .init_IRQ = socrates_pic_init,
89 .get_irq = mpic_get_irq,
90 .calibrate_decr = generic_calibrate_decr,
91 .progress = udbg_progress,
92 };
93
