]>
Commit | Line | Data |
---|---|---|
bc141dea LY |
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/system.h> | |
34 | #include <asm/atomic.h> | |
35 | #include <asm/time.h> | |
36 | #include <asm/io.h> | |
37 | #include <asm/machdep.h> | |
38 | #include <asm/ipic.h> | |
39 | #include <asm/bootinfo.h> | |
40 | #include <asm/irq.h> | |
41 | #include <asm/prom.h> | |
42 | #include <asm/udbg.h> | |
43 | #include <sysdev/fsl_soc.h> | |
44 | #include <asm/qe.h> | |
45 | #include <asm/qe_ic.h> | |
46 | ||
47 | #include "mpc83xx.h" | |
48 | ||
49 | #undef DEBUG | |
50 | #ifdef DEBUG | |
51 | #define DBG(fmt...) udbg_printf(fmt) | |
52 | #else | |
53 | #define DBG(fmt...) | |
54 | #endif | |
55 | ||
56 | #ifndef CONFIG_PCI | |
57 | unsigned long isa_io_base = 0; | |
58 | unsigned long isa_mem_base = 0; | |
59 | #endif | |
60 | ||
61 | static u8 *bcsr_regs = NULL; | |
62 | ||
63 | u8 *get_bcsr(void) | |
64 | { | |
65 | return bcsr_regs; | |
66 | } | |
67 | ||
68 | /* ************************************************************************ | |
69 | * | |
70 | * Setup the architecture | |
71 | * | |
72 | */ | |
73 | static void __init mpc8360_sys_setup_arch(void) | |
74 | { | |
75 | struct device_node *np; | |
76 | ||
77 | if (ppc_md.progress) | |
78 | ppc_md.progress("mpc8360_sys_setup_arch()", 0); | |
79 | ||
80 | np = of_find_node_by_type(NULL, "cpu"); | |
81 | if (np != 0) { | |
82 | const unsigned int *fp = | |
83 | get_property(np, "clock-frequency", NULL); | |
84 | if (fp != 0) | |
85 | loops_per_jiffy = *fp / HZ; | |
86 | else | |
87 | loops_per_jiffy = 50000000 / HZ; | |
88 | of_node_put(np); | |
89 | } | |
90 | ||
91 | /* Map BCSR area */ | |
92 | np = of_find_node_by_name(NULL, "bcsr"); | |
93 | if (np != 0) { | |
94 | struct resource res; | |
95 | ||
96 | of_address_to_resource(np, 0, &res); | |
97 | bcsr_regs = ioremap(res.start, res.end - res.start +1); | |
98 | of_node_put(np); | |
99 | } | |
100 | ||
101 | #ifdef CONFIG_PCI | |
102 | for (np = NULL; (np = of_find_node_by_type(np, "pci")) != NULL;) | |
103 | add_bridge(np); | |
104 | ||
105 | ppc_md.pci_swizzle = common_swizzle; | |
106 | ppc_md.pci_exclude_device = mpc83xx_exclude_device; | |
107 | #endif | |
108 | ||
109 | #ifdef CONFIG_QUICC_ENGINE | |
110 | qe_reset(); | |
111 | ||
112 | if ((np = of_find_node_by_name(np, "par_io")) != NULL) { | |
113 | par_io_init(np); | |
114 | of_node_put(np); | |
115 | ||
116 | for (np = NULL; (np = of_find_node_by_name(np, "ucc")) != NULL;) | |
117 | par_io_of_config(np); | |
118 | } | |
119 | ||
120 | if ((np = of_find_compatible_node(NULL, "network", "ucc_geth")) | |
121 | != NULL){ | |
122 | /* Reset the Ethernet PHY */ | |
123 | bcsr_regs[9] &= ~0x20; | |
124 | udelay(1000); | |
125 | bcsr_regs[9] |= 0x20; | |
126 | iounmap(bcsr_regs); | |
127 | of_node_put(np); | |
128 | } | |
129 | ||
130 | #endif /* CONFIG_QUICC_ENGINE */ | |
131 | ||
132 | #ifdef CONFIG_BLK_DEV_INITRD | |
133 | if (initrd_start) | |
134 | ROOT_DEV = Root_RAM0; | |
135 | else | |
136 | #endif | |
137 | #ifdef CONFIG_ROOT_NFS | |
138 | ROOT_DEV = Root_NFS; | |
139 | #else | |
140 | ROOT_DEV = Root_HDA1; | |
141 | #endif | |
142 | } | |
143 | ||
144 | void __init mpc8360_sys_init_IRQ(void) | |
145 | { | |
146 | ||
147 | struct device_node *np; | |
148 | ||
149 | np = of_find_node_by_type(NULL, "ipic"); | |
150 | if (!np) | |
151 | return; | |
152 | ||
153 | ipic_init(np, 0); | |
154 | ||
155 | /* Initialize the default interrupt mapping priorities, | |
156 | * in case the boot rom changed something on us. | |
157 | */ | |
158 | ipic_set_default_priority(); | |
159 | of_node_put(np); | |
160 | ||
161 | #ifdef CONFIG_QUICC_ENGINE | |
162 | np = of_find_node_by_type(NULL, "qeic"); | |
163 | if (!np) | |
164 | return; | |
165 | ||
166 | qe_ic_init(np, 0); | |
167 | of_node_put(np); | |
168 | #endif /* CONFIG_QUICC_ENGINE */ | |
169 | } | |
170 | ||
171 | #if defined(CONFIG_I2C_MPC) && defined(CONFIG_SENSORS_DS1374) | |
172 | extern ulong ds1374_get_rtc_time(void); | |
173 | extern int ds1374_set_rtc_time(ulong); | |
174 | ||
175 | static int __init mpc8360_rtc_hookup(void) | |
176 | { | |
177 | struct timespec tv; | |
178 | ||
179 | ppc_md.get_rtc_time = ds1374_get_rtc_time; | |
180 | ppc_md.set_rtc_time = ds1374_set_rtc_time; | |
181 | ||
182 | tv.tv_nsec = 0; | |
183 | tv.tv_sec = (ppc_md.get_rtc_time) (); | |
184 | do_settimeofday(&tv); | |
185 | ||
186 | return 0; | |
187 | } | |
188 | ||
189 | late_initcall(mpc8360_rtc_hookup); | |
190 | #endif | |
191 | ||
192 | /* | |
193 | * Called very early, MMU is off, device-tree isn't unflattened | |
194 | */ | |
195 | static int __init mpc8360_sys_probe(void) | |
196 | { | |
197 | char *model = of_get_flat_dt_prop(of_get_flat_dt_root(), | |
198 | "model", NULL); | |
199 | if (model == NULL) | |
200 | return 0; | |
201 | if (strcmp(model, "MPC8360EPB")) | |
202 | return 0; | |
203 | ||
204 | DBG("MPC8360EMDS-PB found\n"); | |
205 | ||
206 | return 1; | |
207 | } | |
208 | ||
209 | define_machine(mpc8360_sys) { | |
210 | .name = "MPC8360E PB", | |
211 | .probe = mpc8360_sys_probe, | |
212 | .setup_arch = mpc8360_sys_setup_arch, | |
213 | .init_IRQ = mpc8360_sys_init_IRQ, | |
214 | .get_irq = ipic_get_irq, | |
215 | .restart = mpc83xx_restart, | |
216 | .time_init = mpc83xx_time_init, | |
217 | .calibrate_decr = generic_calibrate_decr, | |
218 | .progress = udbg_progress, | |
219 | }; |