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[PATCH] powerpc: move arch/ppc64/kernel/bpa* to arch/powerpc/platforms/cell
[mirror_ubuntu-zesty-kernel.git] / arch / powerpc / platforms / cell / setup.c
1 /*
2 * linux/arch/powerpc/platforms/cell/cell_setup.c
3 *
4 * Copyright (C) 1995 Linus Torvalds
5 * Adapted from 'alpha' version by Gary Thomas
6 * Modified by Cort Dougan (cort@cs.nmt.edu)
7 * Modified by PPC64 Team, IBM Corp
8 * Modified by Cell Team, IBM Deutschland Entwicklung GmbH
9 *
10 * This program is free software; you can redistribute it and/or
11 * modify it under the terms of the GNU General Public License
12 * as published by the Free Software Foundation; either version
13 * 2 of the License, or (at your option) any later version.
14 */
15 #undef DEBUG
16
17 #include <linux/config.h>
18 #include <linux/sched.h>
19 #include <linux/kernel.h>
20 #include <linux/mm.h>
21 #include <linux/stddef.h>
22 #include <linux/unistd.h>
23 #include <linux/slab.h>
24 #include <linux/user.h>
25 #include <linux/reboot.h>
26 #include <linux/init.h>
27 #include <linux/delay.h>
28 #include <linux/irq.h>
29 #include <linux/seq_file.h>
30 #include <linux/root_dev.h>
31 #include <linux/console.h>
32
33 #include <asm/mmu.h>
34 #include <asm/processor.h>
35 #include <asm/io.h>
36 #include <asm/pgtable.h>
37 #include <asm/prom.h>
38 #include <asm/rtas.h>
39 #include <asm/pci-bridge.h>
40 #include <asm/iommu.h>
41 #include <asm/dma.h>
42 #include <asm/machdep.h>
43 #include <asm/time.h>
44 #include <asm/nvram.h>
45 #include <asm/cputable.h>
46 #include <asm/ppc-pci.h>
47 #include <asm/irq.h>
48
49 #include "interrupt.h"
50 #include "iommu.h"
51
52 #ifdef DEBUG
53 #define DBG(fmt...) udbg_printf(fmt)
54 #else
55 #define DBG(fmt...)
56 #endif
57
58 void cell_show_cpuinfo(struct seq_file *m)
59 {
60 struct device_node *root;
61 const char *model = "";
62
63 root = of_find_node_by_path("/");
64 if (root)
65 model = get_property(root, "model", NULL);
66 seq_printf(m, "machine\t\t: CHRP %s\n", model);
67 of_node_put(root);
68 }
69
70 static void cell_progress(char *s, unsigned short hex)
71 {
72 printk("*** %04x : %s\n", hex, s ? s : "");
73 }
74
75 static void __init cell_setup_arch(void)
76 {
77 ppc_md.init_IRQ = iic_init_IRQ;
78 ppc_md.get_irq = iic_get_irq;
79
80 #ifdef CONFIG_SMP
81 smp_init_cell();
82 #endif
83
84 /* init to some ~sane value until calibrate_delay() runs */
85 loops_per_jiffy = 50000000;
86
87 if (ROOT_DEV == 0) {
88 printk("No ramdisk, default root is /dev/hda2\n");
89 ROOT_DEV = Root_HDA2;
90 }
91
92 /* Find and initialize PCI host bridges */
93 init_pci_config_tokens();
94 find_and_init_phbs();
95 spider_init_IRQ();
96 #ifdef CONFIG_DUMMY_CONSOLE
97 conswitchp = &dummy_con;
98 #endif
99
100 mmio_nvram_init();
101 }
102
103 /*
104 * Early initialization. Relocation is on but do not reference unbolted pages
105 */
106 static void __init cell_init_early(void)
107 {
108 DBG(" -> cell_init_early()\n");
109
110 hpte_init_native();
111
112 cell_init_iommu();
113
114 ppc64_interrupt_controller = IC_CELL_PIC;
115
116 DBG(" <- cell_init_early()\n");
117 }
118
119
120 static int __init cell_probe(int platform)
121 {
122 if (platform != PLATFORM_CELL)
123 return 0;
124
125 return 1;
126 }
127
128 struct machdep_calls __initdata cell_md = {
129 .probe = cell_probe,
130 .setup_arch = cell_setup_arch,
131 .init_early = cell_init_early,
132 .show_cpuinfo = cell_show_cpuinfo,
133 .restart = rtas_restart,
134 .power_off = rtas_power_off,
135 .halt = rtas_halt,
136 .get_boot_time = rtas_get_boot_time,
137 .get_rtc_time = rtas_get_rtc_time,
138 .set_rtc_time = rtas_set_rtc_time,
139 .calibrate_decr = generic_calibrate_decr,
140 .progress = cell_progress,
141 };