Staging: winbond: mac80211 - unify config_interface and bss_info_changed
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / arch / powerpc / platforms / 85xx / tqm85xx.c
blob5b0ab9966e907f656105e6f10387531dc26b8f93
1 /*
2 * Based on MPC8560 ADS and arch/ppc tqm85xx ports
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
6 * Copyright 2008 Freescale Semiconductor Inc.
8 * Copyright (c) 2005-2006 DENX Software Engineering
9 * Stefan Roese <sr@denx.de>
11 * Based on original work by
12 * Kumar Gala <kumar.gala@freescale.com>
13 * Copyright 2004 Freescale Semiconductor Inc.
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU General Public License as published by the
17 * Free Software Foundation; either version 2 of the License, or (at your
18 * option) any later version.
21 #include <linux/stddef.h>
22 #include <linux/kernel.h>
23 #include <linux/pci.h>
24 #include <linux/kdev_t.h>
25 #include <linux/delay.h>
26 #include <linux/seq_file.h>
27 #include <linux/of_platform.h>
29 #include <asm/system.h>
30 #include <asm/time.h>
31 #include <asm/machdep.h>
32 #include <asm/pci-bridge.h>
33 #include <asm/mpic.h>
34 #include <asm/prom.h>
35 #include <mm/mmu_decl.h>
36 #include <asm/udbg.h>
38 #include <sysdev/fsl_soc.h>
39 #include <sysdev/fsl_pci.h>
41 #ifdef CONFIG_CPM2
42 #include <asm/cpm2.h>
43 #include <sysdev/cpm2_pic.h>
45 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
47 int cascade_irq;
49 while ((cascade_irq = cpm2_get_irq()) >= 0)
50 generic_handle_irq(cascade_irq);
52 desc->chip->eoi(irq);
54 #endif /* CONFIG_CPM2 */
56 static void __init tqm85xx_pic_init(void)
58 struct mpic *mpic;
59 struct resource r;
60 struct device_node *np;
61 #ifdef CONFIG_CPM2
62 int irq;
63 #endif
65 np = of_find_node_by_type(NULL, "open-pic");
66 if (!np) {
67 printk(KERN_ERR "Could not find open-pic node\n");
68 return;
71 if (of_address_to_resource(np, 0, &r)) {
72 printk(KERN_ERR "Could not map mpic register space\n");
73 of_node_put(np);
74 return;
77 mpic = mpic_alloc(np, r.start,
78 MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
79 0, 256, " OpenPIC ");
80 BUG_ON(mpic == NULL);
81 of_node_put(np);
83 mpic_init(mpic);
85 #ifdef CONFIG_CPM2
86 /* Setup CPM2 PIC */
87 np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic");
88 if (np == NULL) {
89 printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n");
90 return;
92 irq = irq_of_parse_and_map(np, 0);
94 if (irq == NO_IRQ) {
95 of_node_put(np);
96 printk(KERN_ERR "PIC init: got no IRQ for cpm cascade\n");
97 return;
100 cpm2_pic_init(np);
101 of_node_put(np);
102 set_irq_chained_handler(irq, cpm2_cascade);
103 #endif
107 * Setup the architecture
109 static void __init tqm85xx_setup_arch(void)
111 #ifdef CONFIG_PCI
112 struct device_node *np;
113 #endif
115 if (ppc_md.progress)
116 ppc_md.progress("tqm85xx_setup_arch()", 0);
118 #ifdef CONFIG_CPM2
119 cpm2_reset();
120 #endif
122 #ifdef CONFIG_PCI
123 for_each_node_by_type(np, "pci") {
124 if (of_device_is_compatible(np, "fsl,mpc8540-pci") ||
125 of_device_is_compatible(np, "fsl,mpc8548-pcie")) {
126 struct resource rsrc;
127 if (!of_address_to_resource(np, 0, &rsrc)) {
128 if ((rsrc.start & 0xfffff) == 0x8000)
129 fsl_add_bridge(np, 1);
130 else
131 fsl_add_bridge(np, 0);
135 #endif
138 static void tqm85xx_show_cpuinfo(struct seq_file *m)
140 uint pvid, svid, phid1;
142 pvid = mfspr(SPRN_PVR);
143 svid = mfspr(SPRN_SVR);
145 seq_printf(m, "Vendor\t\t: TQ Components\n");
146 seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
147 seq_printf(m, "SVR\t\t: 0x%x\n", svid);
149 /* Display cpu Pll setting */
150 phid1 = mfspr(SPRN_HID1);
151 seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
154 static struct of_device_id __initdata of_bus_ids[] = {
155 { .compatible = "simple-bus", },
156 { .compatible = "gianfar", },
160 static int __init declare_of_platform_devices(void)
162 of_platform_bus_probe(NULL, of_bus_ids, NULL);
164 return 0;
166 machine_device_initcall(tqm85xx, declare_of_platform_devices);
169 * Called very early, device-tree isn't unflattened
171 static int __init tqm85xx_probe(void)
173 unsigned long root = of_get_flat_dt_root();
175 if ((of_flat_dt_is_compatible(root, "tqc,tqm8540")) ||
176 (of_flat_dt_is_compatible(root, "tqc,tqm8541")) ||
177 (of_flat_dt_is_compatible(root, "tqc,tqm8548")) ||
178 (of_flat_dt_is_compatible(root, "tqc,tqm8555")) ||
179 (of_flat_dt_is_compatible(root, "tqc,tqm8560")))
180 return 1;
182 return 0;
185 define_machine(tqm85xx) {
186 .name = "TQM85xx",
187 .probe = tqm85xx_probe,
188 .setup_arch = tqm85xx_setup_arch,
189 .init_IRQ = tqm85xx_pic_init,
190 .show_cpuinfo = tqm85xx_show_cpuinfo,
191 .get_irq = mpic_get_irq,
192 .restart = fsl_rstcr_restart,
193 .calibrate_decr = generic_calibrate_decr,
194 .progress = udbg_progress,