[PATCH] m68knommu: remove FP conditionals in ucontext struct
[linux-2.6.git] / arch / powerpc / platforms / 83xx / mpc8360e_pb.c
1 /*
2  * Copyright (C) Freescale Semicondutor, Inc. 2006. All rights reserved.
3  *
4  * Author: Li Yang <LeoLi@freescale.com>
5  *         Yin Olivia <Hong-hua.Yin@freescale.com>
6  *
7  * Description:
8  * MPC8360E MDS PB board specific routines.
9  *
10  * Changelog:
11  * Jun 21, 2006 Initial version
12  *
13  * This program is free software; you can redistribute  it and/or modify it
14  * under  the terms of  the GNU General  Public License as published by the
15  * Free Software Foundation;  either version 2 of the  License, or (at your
16  * option) any later version.
17  */
18
19 #include <linux/stddef.h>
20 #include <linux/kernel.h>
21 #include <linux/init.h>
22 #include <linux/errno.h>
23 #include <linux/reboot.h>
24 #include <linux/pci.h>
25 #include <linux/kdev_t.h>
26 #include <linux/major.h>
27 #include <linux/console.h>
28 #include <linux/delay.h>
29 #include <linux/seq_file.h>
30 #include <linux/root_dev.h>
31 #include <linux/initrd.h>
32
33 #include <asm/of_device.h>
34 #include <asm/system.h>
35 #include <asm/atomic.h>
36 #include <asm/time.h>
37 #include <asm/io.h>
38 #include <asm/machdep.h>
39 #include <asm/ipic.h>
40 #include <asm/bootinfo.h>
41 #include <asm/irq.h>
42 #include <asm/prom.h>
43 #include <asm/udbg.h>
44 #include <sysdev/fsl_soc.h>
45 #include <asm/qe.h>
46 #include <asm/qe_ic.h>
47
48 #include "mpc83xx.h"
49
50 #undef DEBUG
51 #ifdef DEBUG
52 #define DBG(fmt...) udbg_printf(fmt)
53 #else
54 #define DBG(fmt...)
55 #endif
56
57 #ifndef CONFIG_PCI
58 unsigned long isa_io_base = 0;
59 unsigned long isa_mem_base = 0;
60 #endif
61
62 static u8 *bcsr_regs = NULL;
63
64 u8 *get_bcsr(void)
65 {
66         return bcsr_regs;
67 }
68
69 /* ************************************************************************
70  *
71  * Setup the architecture
72  *
73  */
74 static void __init mpc8360_sys_setup_arch(void)
75 {
76         struct device_node *np;
77
78         if (ppc_md.progress)
79                 ppc_md.progress("mpc8360_sys_setup_arch()", 0);
80
81         np = of_find_node_by_type(NULL, "cpu");
82         if (np != 0) {
83                 const unsigned int *fp =
84                     get_property(np, "clock-frequency", NULL);
85                 if (fp != 0)
86                         loops_per_jiffy = *fp / HZ;
87                 else
88                         loops_per_jiffy = 50000000 / HZ;
89                 of_node_put(np);
90         }
91
92         /* Map BCSR area */
93         np = of_find_node_by_name(NULL, "bcsr");
94         if (np != 0) {
95                 struct resource res;
96
97                 of_address_to_resource(np, 0, &res);
98                 bcsr_regs = ioremap(res.start, res.end - res.start +1);
99                 of_node_put(np);
100         }
101
102 #ifdef CONFIG_PCI
103         for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;)
104                 add_bridge(np);
105         ppc_md.pci_exclude_device = mpc83xx_exclude_device;
106 #endif
107
108 #ifdef CONFIG_QUICC_ENGINE
109         qe_reset();
110
111         if ((np = of_find_node_by_name(np, "par_io")) != NULL) {
112                 par_io_init(np);
113                 of_node_put(np);
114
115                 for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;)
116                         par_io_of_config(np);
117         }
118
119         if ((np = of_find_compatible_node(NULL, "network", "ucc_geth"))
120                         != NULL){
121                 /* Reset the Ethernet PHY */
122                 bcsr_regs[9] &= ~0x20;
123                 udelay(1000);
124                 bcsr_regs[9] |= 0x20;
125                 iounmap(bcsr_regs);
126                 of_node_put(np);
127         }
128
129 #endif                          /* CONFIG_QUICC_ENGINE */
130
131 #ifdef CONFIG_BLK_DEV_INITRD
132         if (initrd_start)
133                 ROOT_DEV = Root_RAM0;
134         else
135 #endif
136 #ifdef  CONFIG_ROOT_NFS
137                 ROOT_DEV = Root_NFS;
138 #else
139                 ROOT_DEV = Root_HDA1;
140 #endif
141 }
142
143 static int __init mpc8360_declare_of_platform_devices(void)
144 {
145         struct device_node *np;
146
147         for (np = NULL; (np = of_find_compatible_node(np, "network",
148                                         "ucc_geth")) != NULL;) {
149                 int ucc_num;
150                 char bus_id[BUS_ID_SIZE];
151
152                 ucc_num = *((uint *) get_property(np, "device-id", NULL)) - 1;
153                 snprintf(bus_id, BUS_ID_SIZE, "ucc_geth.%u", ucc_num);
154                 of_platform_device_create(np, bus_id, NULL);
155         }
156
157         return 0;
158 }
159 device_initcall(mpc8360_declare_of_platform_devices);
160
161 void __init mpc8360_sys_init_IRQ(void)
162 {
163
164         struct device_node *np;
165
166         np = of_find_node_by_type(NULL, "ipic");
167         if (!np)
168                 return;
169
170         ipic_init(np, 0);
171
172         /* Initialize the default interrupt mapping priorities,
173          * in case the boot rom changed something on us.
174          */
175         ipic_set_default_priority();
176         of_node_put(np);
177
178 #ifdef CONFIG_QUICC_ENGINE
179         np = of_find_node_by_type(NULL, "qeic");
180         if (!np)
181                 return;
182
183         qe_ic_init(np, 0);
184         of_node_put(np);
185 #endif                          /* CONFIG_QUICC_ENGINE */
186 }
187
188 #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374)
189 extern ulong ds1374_get_rtc_time(void);
190 extern int ds1374_set_rtc_time(ulong);
191
192 static int __init mpc8360_rtc_hookup(void)
193 {
194         struct timespec tv;
195
196         ppc_md.get_rtc_time = ds1374_get_rtc_time;
197         ppc_md.set_rtc_time = ds1374_set_rtc_time;
198
199         tv.tv_nsec = 0;
200         tv.tv_sec = (ppc_md.get_rtc_time) ();
201         do_settimeofday(&tv);
202
203         return 0;
204 }
205
206 late_initcall(mpc8360_rtc_hookup);
207 #endif
208
209 /*
210  * Called very early, MMU is off, device-tree isn't unflattened
211  */
212 static int __init mpc8360_sys_probe(void)
213 {
214         char *model = of_get_flat_dt_prop(of_get_flat_dt_root(),
215                                           "model", NULL);
216         if (model == NULL)
217                 return 0;
218         if (strcmp(model, "MPC8360EPB"))
219                 return 0;
220
221         DBG("MPC8360EMDS-PB found\n");
222
223         return 1;
224 }
225
226 define_machine(mpc8360_sys) {
227         .name           = "MPC8360E PB",
228         .probe          = mpc8360_sys_probe,
229         .setup_arch     = mpc8360_sys_setup_arch,
230         .init_IRQ       = mpc8360_sys_init_IRQ,
231         .get_irq        = ipic_get_irq,
232         .restart        = mpc83xx_restart,
233         .time_init      = mpc83xx_time_init,
234         .calibrate_decr = generic_calibrate_decr,
235         .progress       = udbg_progress,
236 };