diff options
Diffstat (limited to 'arch/powerpc/platforms/86xx/gef_sbc610.c')
-rw-r--r-- | arch/powerpc/platforms/86xx/gef_sbc610.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c new file mode 100644 index 000000000000..3543a9e67618 --- /dev/null +++ b/arch/powerpc/platforms/86xx/gef_sbc610.c | |||
@@ -0,0 +1,149 @@ | |||
1 | /* | ||
2 | * GE Fanuc SBC610 board support | ||
3 | * | ||
4 | * Author: Martyn Welch <martyn.welch@gefanuc.com> | ||
5 | * | ||
6 | * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc. | ||
7 | * | ||
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. | ||
12 | * | ||
13 | * Based on: mpc86xx_hpcn.c (MPC86xx HPCN board specific routines) | ||
14 | * Copyright 2006 Freescale Semiconductor Inc. | ||
15 | */ | ||
16 | |||
17 | #include <linux/stddef.h> | ||
18 | #include <linux/kernel.h> | ||
19 | #include <linux/pci.h> | ||
20 | #include <linux/kdev_t.h> | ||
21 | #include <linux/delay.h> | ||
22 | #include <linux/seq_file.h> | ||
23 | #include <linux/of_platform.h> | ||
24 | |||
25 | #include <asm/system.h> | ||
26 | #include <asm/time.h> | ||
27 | #include <asm/machdep.h> | ||
28 | #include <asm/pci-bridge.h> | ||
29 | #include <asm/mpc86xx.h> | ||
30 | #include <asm/prom.h> | ||
31 | #include <mm/mmu_decl.h> | ||
32 | #include <asm/udbg.h> | ||
33 | |||
34 | #include <asm/mpic.h> | ||
35 | |||
36 | #include <sysdev/fsl_pci.h> | ||
37 | #include <sysdev/fsl_soc.h> | ||
38 | |||
39 | #include "mpc86xx.h" | ||
40 | |||
41 | #undef DEBUG | ||
42 | |||
43 | #ifdef DEBUG | ||
44 | #define DBG (fmt...) do { printk(KERN_ERR "SBC610: " fmt); } while (0) | ||
45 | #else | ||
46 | #define DBG (fmt...) do { } while (0) | ||
47 | #endif | ||
48 | |||
49 | static void __init gef_sbc610_setup_arch(void) | ||
50 | { | ||
51 | #ifdef CONFIG_PCI | ||
52 | struct device_node *np; | ||
53 | |||
54 | for_each_compatible_node(np, "pci", "fsl,mpc8641-pcie") { | ||
55 | fsl_add_bridge(np, 1); | ||
56 | } | ||
57 | #endif | ||
58 | |||
59 | printk(KERN_INFO "GE Fanuc Intelligent Platforms SBC610 6U VPX SBC\n"); | ||
60 | |||
61 | #ifdef CONFIG_SMP | ||
62 | mpc86xx_smp_init(); | ||
63 | #endif | ||
64 | } | ||
65 | |||
66 | |||
67 | static void gef_sbc610_show_cpuinfo(struct seq_file *m) | ||
68 | { | ||
69 | struct device_node *root; | ||
70 | uint memsize = total_memory; | ||
71 | const char *model = ""; | ||
72 | uint svid = mfspr(SPRN_SVR); | ||
73 | |||
74 | seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n"); | ||
75 | |||
76 | root = of_find_node_by_path("/"); | ||
77 | if (root) | ||
78 | model = of_get_property(root, "model", NULL); | ||
79 | seq_printf(m, "Machine\t\t: %s\n", model); | ||
80 | of_node_put(root); | ||
81 | |||
82 | seq_printf(m, "SVR\t\t: 0x%x\n", svid); | ||
83 | seq_printf(m, "Memory\t\t: %d MB\n", memsize / (1024 * 1024)); | ||
84 | } | ||
85 | |||
86 | |||
87 | /* | ||
88 | * Called very early, device-tree isn't unflattened | ||
89 | * | ||
90 | * This function is called to determine whether the BSP is compatible with the | ||
91 | * supplied device-tree, which is assumed to be the correct one for the actual | ||
92 | * board. It is expected thati, in the future, a kernel may support multiple | ||
93 | * boards. | ||
94 | */ | ||
95 | static int __init gef_sbc610_probe(void) | ||
96 | { | ||
97 | unsigned long root = of_get_flat_dt_root(); | ||
98 | |||
99 | if (of_flat_dt_is_compatible(root, "gef,sbc610")) | ||
100 | return 1; | ||
101 | |||
102 | return 0; | ||
103 | } | ||
104 | |||
105 | static long __init mpc86xx_time_init(void) | ||
106 | { | ||
107 | unsigned int temp; | ||
108 | |||
109 | /* Set the time base to zero */ | ||
110 | mtspr(SPRN_TBWL, 0); | ||
111 | mtspr(SPRN_TBWU, 0); | ||
112 | |||
113 | temp = mfspr(SPRN_HID0); | ||
114 | temp |= HID0_TBEN; | ||
115 | mtspr(SPRN_HID0, temp); | ||
116 | asm volatile("isync"); | ||
117 | |||
118 | return 0; | ||
119 | } | ||
120 | |||
121 | static __initdata struct of_device_id of_bus_ids[] = { | ||
122 | { .compatible = "simple-bus", }, | ||
123 | {}, | ||
124 | }; | ||
125 | |||
126 | static int __init declare_of_platform_devices(void) | ||
127 | { | ||
128 | printk(KERN_DEBUG "Probe platform devices\n"); | ||
129 | of_platform_bus_probe(NULL, of_bus_ids, NULL); | ||
130 | |||
131 | return 0; | ||
132 | } | ||
133 | machine_device_initcall(gef_sbc610, declare_of_platform_devices); | ||
134 | |||
135 | define_machine(gef_sbc610) { | ||
136 | .name = "GE Fanuc SBC610", | ||
137 | .probe = gef_sbc610_probe, | ||
138 | .setup_arch = gef_sbc610_setup_arch, | ||
139 | .init_IRQ = mpc86xx_init_irq, | ||
140 | .show_cpuinfo = gef_sbc610_show_cpuinfo, | ||
141 | .get_irq = mpic_get_irq, | ||
142 | .restart = fsl_rstcr_restart, | ||
143 | .time_init = mpc86xx_time_init, | ||
144 | .calibrate_decr = generic_calibrate_decr, | ||
145 | .progress = udbg_progress, | ||
146 | #ifdef CONFIG_PCI | ||
147 | .pcibios_fixup_bus = fsl_pcibios_fixup_bus, | ||
148 | #endif | ||
149 | }; | ||