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ab2f4892 KG |
1 | /* |
2 | * Corenet based SoC DS Setup | |
3 | * | |
4 | * Maintained by Kumar Gala (see MAINTAINERS for contact information) | |
5 | * | |
6 | * Copyright 2009 Freescale Semiconductor 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 | ||
14 | #include <linux/kernel.h> | |
15 | #include <linux/pci.h> | |
16 | #include <linux/kdev_t.h> | |
17 | #include <linux/delay.h> | |
18 | #include <linux/interrupt.h> | |
95f72d1e | 19 | #include <linux/memblock.h> |
ab2f4892 KG |
20 | |
21 | #include <asm/system.h> | |
22 | #include <asm/time.h> | |
23 | #include <asm/machdep.h> | |
24 | #include <asm/pci-bridge.h> | |
25 | #include <mm/mmu_decl.h> | |
26 | #include <asm/prom.h> | |
27 | #include <asm/udbg.h> | |
28 | #include <asm/mpic.h> | |
29 | ||
30 | #include <linux/of_platform.h> | |
31 | #include <sysdev/fsl_soc.h> | |
32 | #include <sysdev/fsl_pci.h> | |
33 | ||
34 | void __init corenet_ds_pic_init(void) | |
35 | { | |
36 | struct mpic *mpic; | |
37 | struct resource r; | |
38 | struct device_node *np = NULL; | |
39 | unsigned int flags = MPIC_PRIMARY | MPIC_BIG_ENDIAN | | |
40 | MPIC_BROKEN_FRR_NIRQS | MPIC_SINGLE_DEST_CPU; | |
41 | ||
42 | np = of_find_node_by_type(np, "open-pic"); | |
43 | ||
44 | if (np == NULL) { | |
45 | printk(KERN_ERR "Could not find open-pic node\n"); | |
46 | return; | |
47 | } | |
48 | ||
49 | if (of_address_to_resource(np, 0, &r)) { | |
50 | printk(KERN_ERR "Failed to map mpic register space\n"); | |
51 | of_node_put(np); | |
52 | return; | |
53 | } | |
54 | ||
55 | if (ppc_md.get_irq == mpic_get_coreint_irq) | |
56 | flags |= MPIC_ENABLE_COREINT; | |
57 | ||
58 | mpic = mpic_alloc(np, r.start, flags, 0, 256, " OpenPIC "); | |
59 | BUG_ON(mpic == NULL); | |
60 | ||
61 | mpic_init(mpic); | |
62 | } | |
63 | ||
64 | #ifdef CONFIG_PCI | |
65 | static int primary_phb_addr; | |
66 | #endif | |
67 | ||
68 | /* | |
69 | * Setup the architecture | |
70 | */ | |
71 | #ifdef CONFIG_SMP | |
72 | void __init mpc85xx_smp_init(void); | |
73 | #endif | |
74 | ||
75 | void __init corenet_ds_setup_arch(void) | |
76 | { | |
77 | #ifdef CONFIG_PCI | |
78 | struct device_node *np; | |
79 | struct pci_controller *hose; | |
80 | #endif | |
81 | dma_addr_t max = 0xffffffff; | |
82 | ||
83 | #ifdef CONFIG_SMP | |
84 | mpc85xx_smp_init(); | |
85 | #endif | |
86 | ||
87 | #ifdef CONFIG_PCI | |
88 | for_each_compatible_node(np, "pci", "fsl,p4080-pcie") { | |
89 | struct resource rsrc; | |
90 | of_address_to_resource(np, 0, &rsrc); | |
91 | if ((rsrc.start & 0xfffff) == primary_phb_addr) | |
92 | fsl_add_bridge(np, 1); | |
93 | else | |
94 | fsl_add_bridge(np, 0); | |
95 | ||
96 | hose = pci_find_hose_for_OF_device(np); | |
97 | max = min(max, hose->dma_window_base_cur + | |
98 | hose->dma_window_size); | |
99 | } | |
100 | #endif | |
101 | ||
102 | #ifdef CONFIG_SWIOTLB | |
95f72d1e | 103 | if (memblock_end_of_DRAM() > max) { |
ab2f4892 KG |
104 | ppc_swiotlb_enable = 1; |
105 | set_pci_dma_ops(&swiotlb_dma_ops); | |
106 | ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_swiotlb; | |
107 | } | |
108 | #endif | |
109 | pr_info("%s board from Freescale Semiconductor\n", ppc_md.name); | |
110 | } | |
111 | ||
112 | static const struct of_device_id of_device_ids[] __devinitconst = { | |
113 | { | |
114 | .compatible = "simple-bus" | |
115 | }, | |
116 | { | |
117 | .compatible = "fsl,rapidio-delta", | |
118 | }, | |
119 | {} | |
120 | }; | |
121 | ||
122 | int __init corenet_ds_publish_devices(void) | |
123 | { | |
124 | return of_platform_bus_probe(NULL, of_device_ids, NULL); | |
125 | } |