Commit | Line | Data |
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4ca4b627 JL |
1 | /* |
2 | * MPC86xx HPCN board specific routines | |
3 | * | |
4 | * Recode: ZHANG WEI <wei.zhang@freescale.com> | |
5 | * Initial author: Xianghua Xiao <x.xiao@freescale.com> | |
6 | * | |
7 | * Copyright 2006 Freescale Semiconductor Inc. | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify it | |
10 | * under the terms of the GNU General Public License as published by the | |
11 | * Free Software Foundation; either version 2 of the License, or (at your | |
12 | * option) any later version. | |
13 | */ | |
14 | ||
4ca4b627 JL |
15 | #include <linux/stddef.h> |
16 | #include <linux/kernel.h> | |
17 | #include <linux/pci.h> | |
18 | #include <linux/kdev_t.h> | |
19 | #include <linux/delay.h> | |
20 | #include <linux/seq_file.h> | |
15061d60 | 21 | #include <linux/of_platform.h> |
4ca4b627 JL |
22 | |
23 | #include <asm/system.h> | |
24 | #include <asm/time.h> | |
25 | #include <asm/machdep.h> | |
26 | #include <asm/pci-bridge.h> | |
27 | #include <asm/mpc86xx.h> | |
28 | #include <asm/prom.h> | |
29 | #include <mm/mmu_decl.h> | |
30 | #include <asm/udbg.h> | |
4ca4b627 JL |
31 | |
32 | #include <asm/mpic.h> | |
33 | ||
9ac4dd30 | 34 | #include <sysdev/fsl_pci.h> |
4ca4b627 JL |
35 | #include <sysdev/fsl_soc.h> |
36 | ||
37 | #include "mpc86xx.h" | |
38 | ||
919fede6 JL |
39 | #undef DEBUG |
40 | ||
41 | #ifdef DEBUG | |
42 | #define DBG(fmt...) do { printk(KERN_ERR fmt); } while(0) | |
43 | #else | |
44 | #define DBG(fmt...) do { } while(0) | |
45 | #endif | |
46 | ||
4ca4b627 | 47 | #ifdef CONFIG_PCI |
b66510cb KG |
48 | extern int uli_exclude_device(struct pci_controller *hose, |
49 | u_char bus, u_char devfn); | |
4ca4b627 | 50 | |
b66510cb KG |
51 | static int mpc86xx_exclude_device(struct pci_controller *hose, |
52 | u_char bus, u_char devfn) | |
4ca4b627 | 53 | { |
b66510cb KG |
54 | struct device_node* node; |
55 | struct resource rsrc; | |
9ad494f6 | 56 | |
44ef3390 | 57 | node = hose->dn; |
b66510cb | 58 | of_address_to_resource(node, 0, &rsrc); |
9ad494f6 | 59 | |
b66510cb KG |
60 | if ((rsrc.start & 0xfffff) == 0x8000) { |
61 | return uli_exclude_device(hose, bus, devfn); | |
62 | } | |
9ad494f6 | 63 | |
b66510cb | 64 | return PCIBIOS_SUCCESSFUL; |
9ad494f6 | 65 | } |
4ca4b627 JL |
66 | #endif /* CONFIG_PCI */ |
67 | ||
68 | ||
69 | static void __init | |
70 | mpc86xx_hpcn_setup_arch(void) | |
71 | { | |
d347b329 | 72 | #ifdef CONFIG_PCI |
4ca4b627 | 73 | struct device_node *np; |
d347b329 | 74 | #endif |
4ca4b627 JL |
75 | |
76 | if (ppc_md.progress) | |
77 | ppc_md.progress("mpc86xx_hpcn_setup_arch()", 0); | |
78 | ||
4ca4b627 | 79 | #ifdef CONFIG_PCI |
c9438aff | 80 | for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { |
9ac4dd30 ZR |
81 | struct resource rsrc; |
82 | of_address_to_resource(np, 0, &rsrc); | |
83 | if ((rsrc.start & 0xfffff) == 0x8000) | |
84 | fsl_add_bridge(np, 1); | |
85 | else | |
86 | fsl_add_bridge(np, 0); | |
87 | } | |
c9438aff | 88 | |
b66510cb KG |
89 | ppc_md.pci_exclude_device = mpc86xx_exclude_device; |
90 | ||
4ca4b627 JL |
91 | #endif |
92 | ||
93 | printk("MPC86xx HPCN board from Freescale Semiconductor\n"); | |
94 | ||
4ca4b627 JL |
95 | #ifdef CONFIG_SMP |
96 | mpc86xx_smp_init(); | |
97 | #endif | |
98 | } | |
99 | ||
100 | ||
06f35b4b | 101 | static void |
4ca4b627 JL |
102 | mpc86xx_hpcn_show_cpuinfo(struct seq_file *m) |
103 | { | |
104 | struct device_node *root; | |
105 | uint memsize = total_memory; | |
106 | const char *model = ""; | |
107 | uint svid = mfspr(SPRN_SVR); | |
108 | ||
109 | seq_printf(m, "Vendor\t\t: Freescale Semiconductor\n"); | |
110 | ||
111 | root = of_find_node_by_path("/"); | |
112 | if (root) | |
e2eb6392 | 113 | model = of_get_property(root, "model", NULL); |
4ca4b627 JL |
114 | seq_printf(m, "Machine\t\t: %s\n", model); |
115 | of_node_put(root); | |
116 | ||
117 | seq_printf(m, "SVR\t\t: 0x%x\n", svid); | |
118 | seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); | |
119 | } | |
120 | ||
121 | ||
122 | /* | |
123 | * Called very early, device-tree isn't unflattened | |
124 | */ | |
125 | static int __init mpc86xx_hpcn_probe(void) | |
126 | { | |
127 | unsigned long root = of_get_flat_dt_root(); | |
128 | ||
06f35b4b | 129 | if (of_flat_dt_is_compatible(root, "fsl,mpc8641hpcn")) |
4ca4b627 JL |
130 | return 1; /* Looks good */ |
131 | ||
16787b43 PG |
132 | /* Be nice and don't give silent boot death. Delete this in 2.6.27 */ |
133 | if (of_flat_dt_is_compatible(root, "mpc86xx")) { | |
134 | pr_warning("WARNING: your dts/dtb is old. You must update before the next kernel release\n"); | |
135 | return 1; | |
136 | } | |
137 | ||
4ca4b627 JL |
138 | return 0; |
139 | } | |
140 | ||
06f35b4b | 141 | static long __init |
4ca4b627 JL |
142 | mpc86xx_time_init(void) |
143 | { | |
144 | unsigned int temp; | |
145 | ||
146 | /* Set the time base to zero */ | |
147 | mtspr(SPRN_TBWL, 0); | |
148 | mtspr(SPRN_TBWU, 0); | |
149 | ||
150 | temp = mfspr(SPRN_HID0); | |
151 | temp |= HID0_TBEN; | |
152 | mtspr(SPRN_HID0, temp); | |
153 | asm volatile("isync"); | |
154 | ||
155 | return 0; | |
156 | } | |
157 | ||
15061d60 WF |
158 | static __initdata struct of_device_id of_bus_ids[] = { |
159 | { .compatible = "simple-bus", }, | |
182e143b | 160 | { .compatible = "fsl,rapidio-delta", }, |
15061d60 WF |
161 | {}, |
162 | }; | |
163 | ||
164 | static int __init declare_of_platform_devices(void) | |
165 | { | |
166 | of_platform_bus_probe(NULL, of_bus_ids, NULL); | |
167 | ||
168 | return 0; | |
169 | } | |
170 | machine_device_initcall(mpc86xx_hpcn, declare_of_platform_devices); | |
171 | ||
4ca4b627 JL |
172 | define_machine(mpc86xx_hpcn) { |
173 | .name = "MPC86xx HPCN", | |
174 | .probe = mpc86xx_hpcn_probe, | |
175 | .setup_arch = mpc86xx_hpcn_setup_arch, | |
98384c6c | 176 | .init_IRQ = mpc86xx_init_irq, |
4ca4b627 JL |
177 | .show_cpuinfo = mpc86xx_hpcn_show_cpuinfo, |
178 | .get_irq = mpic_get_irq, | |
e1c1575f | 179 | .restart = fsl_rstcr_restart, |
4ca4b627 JL |
180 | .time_init = mpc86xx_time_init, |
181 | .calibrate_decr = generic_calibrate_decr, | |
182 | .progress = udbg_progress, | |
2af8569d | 183 | #ifdef CONFIG_PCI |
6c0a11c1 | 184 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, |
2af8569d | 185 | #endif |
4ca4b627 | 186 | }; |