2 * linux/arch/powerpc/platforms/cell/cell_setup.c
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
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.
17 #include <linux/sched.h>
18 #include <linux/kernel.h>
20 #include <linux/stddef.h>
21 #include <linux/unistd.h>
22 #include <linux/slab.h>
23 #include <linux/user.h>
24 #include <linux/reboot.h>
25 #include <linux/init.h>
26 #include <linux/delay.h>
27 #include <linux/irq.h>
28 #include <linux/seq_file.h>
29 #include <linux/root_dev.h>
30 #include <linux/console.h>
31 #include <linux/mutex.h>
32 #include <linux/memory_hotplug.h>
33 #include <linux/of_platform.h>
36 #include <asm/processor.h>
38 #include <asm/kexec.h>
39 #include <asm/pgtable.h>
42 #include <asm/pci-bridge.h>
43 #include <asm/iommu.h>
45 #include <asm/machdep.h>
47 #include <asm/nvram.h>
48 #include <asm/cputable.h>
49 #include <asm/ppc-pci.h>
52 #include <asm/spu_priv1.h>
55 #include <asm/cell-regs.h>
57 #include "interrupt.h"
58 #include "pervasive.h"
62 #define DBG(fmt...) udbg_printf(fmt)
67 static void cell_show_cpuinfo(struct seq_file *m)
69 struct device_node *root;
70 const char *model = "";
72 root = of_find_node_by_path("/");
74 model = of_get_property(root, "model", NULL);
75 seq_printf(m, "machine\t\t: CHRP %s\n", model);
79 static void cell_progress(char *s, unsigned short hex)
81 printk("*** %04x : %s\n", hex, s ? s : "");
84 static void cell_fixup_pcie_rootcomplex(struct pci_dev *dev)
86 struct pci_controller *hose;
90 if (!machine_is(cell))
93 /* We're searching for a direct child of the PHB */
94 if (dev->bus->self != NULL || dev->devfn != 0)
97 hose = pci_bus_to_host(dev->bus);
102 if (!of_device_is_compatible(hose->dn, "pciex"))
105 /* And only on axon */
106 s = of_get_property(hose->dn, "model", NULL);
107 if (!s || strcmp(s, "Axon") != 0)
110 for (i = 0; i < PCI_BRIDGE_RESOURCES; i++) {
111 dev->resource[i].start = dev->resource[i].end = 0;
112 dev->resource[i].flags = 0;
115 printk(KERN_DEBUG "PCI: Hiding resources on Axon PCIE RC %s\n",
118 DECLARE_PCI_FIXUP_HEADER(PCI_ANY_ID, PCI_ANY_ID, cell_fixup_pcie_rootcomplex);
120 static int __init cell_publish_devices(void)
124 /* Publish OF platform devices for southbridge IOs */
125 of_platform_bus_probe(NULL, NULL, NULL);
127 /* There is no device for the MIC memory controller, thus we create
128 * a platform device for it to attach the EDAC driver to.
130 for_each_online_node(node) {
131 if (cbe_get_cpu_mic_tm_regs(cbe_node_to_cpu(node)) == NULL)
133 platform_device_register_simple("cbe-mic", node, NULL, 0);
137 machine_subsys_initcall(cell, cell_publish_devices);
139 static void cell_mpic_cascade(unsigned int irq, struct irq_desc *desc)
141 struct mpic *mpic = desc->handler_data;
144 virq = mpic_get_one_irq(mpic);
146 generic_handle_irq(virq);
147 desc->chip->eoi(irq);
150 static void __init mpic_init_IRQ(void)
152 struct device_node *dn;
157 (dn = of_find_node_by_name(dn, "interrupt-controller"));) {
158 if (!of_device_is_compatible(dn, "CBEA,platform-open-pic"))
161 /* The MPIC driver will get everything it needs from the
162 * device-tree, just pass 0 to all arguments
164 mpic = mpic_alloc(dn, 0, 0, 0, 0, " MPIC ");
169 virq = irq_of_parse_and_map(dn, 0);
173 printk(KERN_INFO "%s : hooking up to IRQ %d\n",
174 dn->full_name, virq);
175 set_irq_data(virq, mpic);
176 set_irq_chained_handler(virq, cell_mpic_cascade);
181 static void __init cell_init_irq(void)
188 static void __init cell_set_dabrx(void)
190 mtspr(SPRN_DABRX, DABRX_KERNEL | DABRX_USER);
193 static void __init cell_setup_arch(void)
195 #ifdef CONFIG_SPU_BASE
196 spu_priv1_ops = &spu_priv1_mmio_ops;
197 spu_management_ops = &spu_management_of_ops;
204 #ifdef CONFIG_CBE_RAS
211 /* init to some ~sane value until calibrate_delay() runs */
212 loops_per_jiffy = 50000000;
214 /* Find and initialize PCI host bridges */
215 init_pci_config_tokens();
216 find_and_init_phbs();
217 cbe_pervasive_init();
218 #ifdef CONFIG_DUMMY_CONSOLE
219 conswitchp = &dummy_con;
225 static int __init cell_probe(void)
227 unsigned long root = of_get_flat_dt_root();
229 if (!of_flat_dt_is_compatible(root, "IBM,CBEA") &&
230 !of_flat_dt_is_compatible(root, "IBM,CPBW-1.0"))
238 define_machine(cell) {
241 .setup_arch = cell_setup_arch,
242 .show_cpuinfo = cell_show_cpuinfo,
243 .restart = rtas_restart,
244 .power_off = rtas_power_off,
246 .get_boot_time = rtas_get_boot_time,
247 .get_rtc_time = rtas_get_rtc_time,
248 .set_rtc_time = rtas_set_rtc_time,
249 .calibrate_decr = generic_calibrate_decr,
250 .progress = cell_progress,
251 .init_IRQ = cell_init_irq,
252 .pci_setup_phb = rtas_setup_phb,
254 .machine_kexec = default_machine_kexec,
255 .machine_kexec_prepare = default_machine_kexec_prepare,
256 .machine_crash_shutdown = default_machine_crash_shutdown,