2 * arch/powerpc/platforms/83xx/mpc837x_mds.c
4 * Copyright (C) 2007 Freescale Semiconductor, Inc. All rights reserved.
6 * MPC837x MDS board specific routines
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/pci.h>
16 #include <linux/of_platform.h>
22 #include <sysdev/fsl_pci.h>
26 #define BCSR12_USB_SER_MASK 0x8a
27 #define BCSR12_USB_SER_PIN 0x80
28 #define BCSR12_USB_SER_DEVICE 0x02
29 extern int mpc837x_usb_cfg(void);
31 static int mpc837xmds_usb_cfg(void)
33 struct device_node
*np
;
34 const void *phy_type
, *mode
;
35 void __iomem
*bcsr_regs
= NULL
;
39 ret
= mpc837x_usb_cfg();
43 np
= of_find_compatible_node(NULL
, NULL
, "fsl,mpc837xmds-bcsr");
45 bcsr_regs
= of_iomap(np
, 0);
51 np
= of_find_node_by_name(NULL
, "usb");
54 phy_type
= of_get_property(np
, "phy_type", NULL
);
55 if (phy_type
&& !strcmp(phy_type
, "ulpi")) {
56 clrbits8(bcsr_regs
+ 12, BCSR12_USB_SER_PIN
);
57 } else if (phy_type
&& !strcmp(phy_type
, "serial")) {
58 mode
= of_get_property(np
, "dr_mode", NULL
);
59 bcsr12
= in_8(bcsr_regs
+ 12) & ~BCSR12_USB_SER_MASK
;
60 bcsr12
|= BCSR12_USB_SER_PIN
;
61 if (mode
&& !strcmp(mode
, "peripheral"))
62 bcsr12
|= BCSR12_USB_SER_DEVICE
;
63 out_8(bcsr_regs
+ 12, bcsr12
);
65 printk(KERN_ERR
"USB DR: unsupported PHY\n");
73 /* ************************************************************************
75 * Setup the architecture
78 static void __init
mpc837x_mds_setup_arch(void)
81 struct device_node
*np
;
85 ppc_md
.progress("mpc837x_mds_setup_arch()", 0);
88 for_each_compatible_node(np
, "pci", "fsl,mpc8349-pci") {
89 if (!of_device_is_available(np
)) {
90 pr_warning("%s: disabled by the firmware.\n",
94 mpc83xx_add_bridge(np
);
100 static struct of_device_id mpc837x_ids
[] = {
102 { .compatible
= "soc", },
103 { .compatible
= "simple-bus", },
107 static int __init
mpc837x_declare_of_platform_devices(void)
109 /* Publish of_device */
110 of_platform_bus_probe(NULL
, mpc837x_ids
, NULL
);
114 machine_device_initcall(mpc837x_mds
, mpc837x_declare_of_platform_devices
);
116 static void __init
mpc837x_mds_init_IRQ(void)
118 struct device_node
*np
;
120 np
= of_find_compatible_node(NULL
, NULL
, "fsl,ipic");
126 /* Initialize the default interrupt mapping priorities,
127 * in case the boot rom changed something on us.
129 ipic_set_default_priority();
133 * Called very early, MMU is off, device-tree isn't unflattened
135 static int __init
mpc837x_mds_probe(void)
137 unsigned long root
= of_get_flat_dt_root();
139 return of_flat_dt_is_compatible(root
, "fsl,mpc837xmds");
142 define_machine(mpc837x_mds
) {
143 .name
= "MPC837x MDS",
144 .probe
= mpc837x_mds_probe
,
145 .setup_arch
= mpc837x_mds_setup_arch
,
146 .init_IRQ
= mpc837x_mds_init_IRQ
,
147 .get_irq
= ipic_get_irq
,
148 .restart
= mpc83xx_restart
,
149 .time_init
= mpc83xx_time_init
,
150 .calibrate_decr
= generic_calibrate_decr
,
151 .progress
= udbg_progress
,