| 1 | |
| 2 | |
| 3 | * MIPS support for CONFIG_OF device tree support
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| 4 | *
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| 5 | * Copyright (C) 2010 Cisco Systems Inc. <[email protected]>
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| 6 |
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| 7 |
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| 8 | #include <linux/init.h>
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| 9 | #include <linux/export.h>
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| 10 | #include <linux/errno.h>
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| 11 | #include <linux/types.h>
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| 12 | #include <linux/memblock.h>
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| 13 | #include <linux/debugfs.h>
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| 14 | #include <linux/of.h>
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| 15 | #include <linux/of_fdt.h>
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| 16 | #include <linux/of_platform.h>
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| 17 |
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| 18 | #include <asm/bootinfo.h>
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| 19 | #include <asm/page.h>
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| 20 | #include <asm/prom.h>
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| 21 |
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| 22 | static char mips_machine_name[64] = "Unknown";
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| 23 |
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| 24 | __init void mips_set_machine_name(const char *name)
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| 25 | {
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| 26 | if (name == NULL)
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| 27 | return;
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| 28 |
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| 29 | strscpy(mips_machine_name, name, sizeof(mips_machine_name));
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| 30 | pr_info("MIPS: machine is %s\n", mips_get_machine_name());
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| 31 |
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| 32 | dump_stack_set_arch_desc(name);
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| 33 | }
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| 34 |
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| 35 | char *mips_get_machine_name(void)
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| 36 | {
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| 37 | return mips_machine_name;
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| 38 | }
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| 39 |
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| 40 | #ifdef CONFIG_USE_OF
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| 41 |
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| 42 | void __init __dt_setup_arch(void *bph)
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| 43 | {
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| 44 | if (!early_init_dt_scan(bph, __pa(bph)))
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| 45 | return;
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| 46 |
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| 47 | mips_set_machine_name(of_flat_dt_get_machine_name());
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| 48 | }
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| 49 |
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| 50 | int __init __dt_register_buses(const char *bus0, const char *bus1)
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| 51 | {
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| 52 | static struct of_device_id of_ids[3];
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| 53 |
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| 54 | if (!of_have_populated_dt())
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| 55 | panic("device tree not present");
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| 56 |
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| 57 | strscpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible));
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| 58 | if (bus1) {
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| 59 | strscpy(of_ids[1].compatible, bus1,
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| 60 | sizeof(of_ids[1].compatible));
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| 61 | }
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| 62 |
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| 63 | if (of_platform_populate(NULL, of_ids, NULL, NULL))
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| 64 | panic("failed to populate DT");
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| 65 |
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| 66 | return 0;
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| 67 | }
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| 68 |
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| 69 | void __weak __init device_tree_init(void)
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| 70 | {
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| 71 | unflatten_and_copy_device_tree();
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| 72 | }
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| 73 |
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| 74 | #endif
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