2 * arch/powerpc/platforms/83xx/mpc834x_mds.c
4 * MPC834x MDS board specific routines
6 * Maintainer: Kumar Gala <galak@kernel.crashing.org>
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms of the GNU General Public License as published by the
10 * Free Software Foundation; either version 2 of the License, or (at your
11 * option) any later version.
14 #include <linux/stddef.h>
15 #include <linux/kernel.h>
16 #include <linux/init.h>
17 #include <linux/errno.h>
18 #include <linux/reboot.h>
19 #include <linux/pci.h>
20 #include <linux/kdev_t.h>
21 #include <linux/major.h>
22 #include <linux/console.h>
23 #include <linux/delay.h>
24 #include <linux/seq_file.h>
25 #include <linux/root_dev.h>
27 #include <asm/system.h>
28 #include <asm/atomic.h>
31 #include <asm/machdep.h>
36 #include <sysdev/fsl_soc.h>
40 #define BCSR5_INT_USB 0x02
41 static int mpc834xemds_usb_cfg(void)
43 struct device_node *np;
44 void __iomem *bcsr_regs = NULL;
49 np = of_find_node_by_name(NULL, "bcsr");
53 of_address_to_resource(np, 0, &res);
54 bcsr_regs = ioremap(res.start, res.end - res.start + 1);
61 * if Processor Board is plugged into PIB board,
62 * force to use the PHY on Processor Board
64 bcsr5 = in_8(bcsr_regs + 5);
65 if (!(bcsr5 & BCSR5_INT_USB))
66 out_8(bcsr_regs + 5, (bcsr5 | BCSR5_INT_USB));
71 /* ************************************************************************
73 * Setup the architecture
76 static void __init mpc834x_mds_setup_arch(void)
79 struct device_node *np;
83 ppc_md.progress("mpc834x_mds_setup_arch()", 0);
86 for_each_compatible_node(np, "pci", "fsl,mpc8349-pci")
87 mpc83xx_add_bridge(np);
90 mpc834xemds_usb_cfg();
93 static void __init mpc834x_mds_init_IRQ(void)
95 struct device_node *np;
97 np = of_find_node_by_type(NULL, "ipic");
103 /* Initialize the default interrupt mapping priorities,
104 * in case the boot rom changed something on us.
106 ipic_set_default_priority();
110 * Called very early, MMU is off, device-tree isn't unflattened
112 static int __init mpc834x_mds_probe(void)
114 unsigned long root = of_get_flat_dt_root();
116 return of_flat_dt_is_compatible(root, "MPC834xMDS");
119 define_machine(mpc834x_mds) {
120 .name = "MPC834x MDS",
121 .probe = mpc834x_mds_probe,
122 .setup_arch = mpc834x_mds_setup_arch,
123 .init_IRQ = mpc834x_mds_init_IRQ,
124 .get_irq = ipic_get_irq,
125 .restart = mpc83xx_restart,
126 .time_init = mpc83xx_time_init,
127 .calibrate_decr = generic_calibrate_decr,
128 .progress = udbg_progress,