1 /*
2 * Copyright (c) 2008 Emcraft Systems
3 * Sergei Poselenov <sposelenov@emcraft.com>
4 *
5 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
6 *
7 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
8 *
9 * Copyright 2008 Freescale Semiconductor Inc.
10 *
11 * Copyright (c) 2005-2006 DENX Software Engineering
12 * Stefan Roese <sr@denx.de>
13 *
14 * Based on original work by
15 * Kumar Gala <kumar.gala@freescale.com>
16 * Copyright 2004 Freescale Semiconductor Inc.
17 *
18 * This program is free software; you can redistribute it and/or modify it
19 * under the terms of the GNU General Public License as published by the
20 * Free Software Foundation; either version 2 of the License, or (at your
21 * option) any later version.
22 */
23
24 #include <linux/stddef.h>
25 #include <linux/kernel.h>
26 #include <linux/pci.h>
27 #include <linux/kdev_t.h>
28 #include <linux/delay.h>
29 #include <linux/seq_file.h>
30 #include <linux/of_platform.h>
31
32 #include <asm/system.h>
33 #include <asm/time.h>
34 #include <asm/machdep.h>
35 #include <asm/pci-bridge.h>
36 #include <asm/mpic.h>
37 #include <asm/prom.h>
38 #include <mm/mmu_decl.h>
39 #include <asm/udbg.h>
40
41 #include <sysdev/fsl_soc.h>
42 #include <sysdev/fsl_pci.h>
43
44 #include "mpc85xx.h"
45 #include "socrates_fpga_pic.h"
46
socrates_pic_init(void)47 static void __init socrates_pic_init(void)
48 {
49 struct device_node *np;
50
51 struct mpic *mpic = mpic_alloc(NULL, 0,
52 MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
53 0, 256, " OpenPIC ");
54 BUG_ON(mpic == NULL);
55 mpic_init(mpic);
56
57 np = of_find_compatible_node(NULL, NULL, "abb,socrates-fpga-pic");
58 if (!np) {
59 printk(KERN_ERR "Could not find socrates-fpga-pic node\n");
60 return;
61 }
62 socrates_fpga_pic_init(np);
63 of_node_put(np);
64 }
65
66 /*
67 * Setup the architecture
68 */
socrates_setup_arch(void)69 static void __init socrates_setup_arch(void)
70 {
71 #ifdef CONFIG_PCI
72 struct device_node *np;
73 #endif
74
75 if (ppc_md.progress)
76 ppc_md.progress("socrates_setup_arch()", 0);
77
78 #ifdef CONFIG_PCI
79 for_each_compatible_node(np, "pci", "fsl,mpc8540-pci")
80 fsl_add_bridge(np, 1);
81 #endif
82 }
83
84 machine_device_initcall(socrates, mpc85xx_common_publish_devices);
85
86 /*
87 * Called very early, device-tree isn't unflattened
88 */
socrates_probe(void)89 static int __init socrates_probe(void)
90 {
91 unsigned long root = of_get_flat_dt_root();
92
93 if (of_flat_dt_is_compatible(root, "abb,socrates"))
94 return 1;
95
96 return 0;
97 }
98
define_machine(socrates)99 define_machine(socrates) {
100 .name = "Socrates",
101 .probe = socrates_probe,
102 .setup_arch = socrates_setup_arch,
103 .init_IRQ = socrates_pic_init,
104 .get_irq = mpic_get_irq,
105 .restart = fsl_rstcr_restart,
106 .calibrate_decr = generic_calibrate_decr,
107 .progress = udbg_progress,
108 };
109