2 * Based on MPC8560 ADS and arch/ppc stx_gp3 ports
4 * Maintained by Kumar Gala (see MAINTAINERS for contact information)
6 * Copyright 2008 Freescale Semiconductor Inc.
8 * Dan Malek <dan@embeddededge.com>
9 * Copyright 2004 Embedded Edge, LLC
11 * Copied from mpc8560_ads.c
12 * Copyright 2002, 2003 Motorola Inc.
14 * Ported to 2.6, Matt Porter <mporter@kernel.crashing.org>
15 * Copyright 2004-2005 MontaVista Software, Inc.
17 * This program is free software; you can redistribute it and/or modify it
18 * under the terms of the GNU General Public License as published by the
19 * Free Software Foundation; either version 2 of the License, or (at your
20 * option) any later version.
23 #include <linux/stddef.h>
24 #include <linux/kernel.h>
25 #include <linux/pci.h>
26 #include <linux/kdev_t.h>
27 #include <linux/delay.h>
28 #include <linux/seq_file.h>
29 #include <linux/of_platform.h>
31 #include <asm/system.h>
33 #include <asm/machdep.h>
34 #include <asm/pci-bridge.h>
37 #include <mm/mmu_decl.h>
40 #include <sysdev/fsl_soc.h>
41 #include <sysdev/fsl_pci.h>
45 #include <sysdev/cpm2_pic.h>
47 static void cpm2_cascade(unsigned int irq, struct irq_desc *desc)
51 while ((cascade_irq = cpm2_get_irq()) >= 0)
52 generic_handle_irq(cascade_irq);
56 #endif /* CONFIG_CPM2 */
58 static void __init stx_gp3_pic_init(void)
62 struct device_node *np;
67 np = of_find_node_by_type(NULL, "open-pic");
69 printk(KERN_ERR "Could not find open-pic node\n");
73 if (of_address_to_resource(np, 0, &r)) {
74 printk(KERN_ERR "Could not map mpic register space\n");
79 mpic = mpic_alloc(np, r.start,
80 MPIC_PRIMARY | MPIC_WANTS_RESET | MPIC_BIG_ENDIAN,
89 np = of_find_compatible_node(NULL, NULL, "fsl,cpm2-pic");
91 printk(KERN_ERR "PIC init: can not find fsl,cpm2-pic node\n");
94 irq = irq_of_parse_and_map(np, 0);
98 printk(KERN_ERR "PIC init: got no IRQ for cpm cascade\n");
104 set_irq_chained_handler(irq, cpm2_cascade);
109 * Setup the architecture
111 static void __init stx_gp3_setup_arch(void)
114 struct device_node *np;
118 ppc_md.progress("stx_gp3_setup_arch()", 0);
125 for_each_compatible_node(np, "pci", "fsl,mpc8540-pci")
126 fsl_add_bridge(np, 1);
130 static void stx_gp3_show_cpuinfo(struct seq_file *m)
132 uint pvid, svid, phid1;
134 pvid = mfspr(SPRN_PVR);
135 svid = mfspr(SPRN_SVR);
137 seq_printf(m, "Vendor\t\t: RPC Electronics STx \n");
138 seq_printf(m, "PVR\t\t: 0x%x\n", pvid);
139 seq_printf(m, "SVR\t\t: 0x%x\n", svid);
141 /* Display cpu Pll setting */
142 phid1 = mfspr(SPRN_HID1);
143 seq_printf(m, "PLL setting\t: 0x%x\n", ((phid1 >> 24) & 0x3f));
146 static struct of_device_id __initdata of_bus_ids[] = {
147 { .compatible = "simple-bus", },
151 static int __init declare_of_platform_devices(void)
153 of_platform_bus_probe(NULL, of_bus_ids, NULL);
157 machine_device_initcall(stx_gp3, declare_of_platform_devices);
160 * Called very early, device-tree isn't unflattened
162 static int __init stx_gp3_probe(void)
164 unsigned long root = of_get_flat_dt_root();
166 return of_flat_dt_is_compatible(root, "stx,gp3-8560");
169 define_machine(stx_gp3) {
171 .probe = stx_gp3_probe,
172 .setup_arch = stx_gp3_setup_arch,
173 .init_IRQ = stx_gp3_pic_init,
174 .show_cpuinfo = stx_gp3_show_cpuinfo,
175 .get_irq = mpic_get_irq,
176 .restart = fsl_rstcr_restart,
177 .calibrate_decr = generic_calibrate_decr,
178 .progress = udbg_progress,