You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
79 lines
1.8 KiB
79 lines
1.8 KiB
/* |
|
* MIPS support for CONFIG_OF device tree support |
|
* |
|
* Copyright (C) 2010 Cisco Systems Inc. <dediao@cisco.com> |
|
* |
|
* This program is free software; you can redistribute it and/or modify |
|
* it under the terms of the GNU General Public License version 2 as |
|
* published by the Free Software Foundation. |
|
*/ |
|
|
|
#include <linux/init.h> |
|
#include <linux/export.h> |
|
#include <linux/errno.h> |
|
#include <linux/types.h> |
|
#include <linux/bootmem.h> |
|
#include <linux/debugfs.h> |
|
#include <linux/of.h> |
|
#include <linux/of_fdt.h> |
|
#include <linux/of_platform.h> |
|
|
|
#include <asm/bootinfo.h> |
|
#include <asm/page.h> |
|
#include <asm/prom.h> |
|
|
|
static char mips_machine_name[64] = "Unknown"; |
|
|
|
__init void mips_set_machine_name(const char *name) |
|
{ |
|
if (name == NULL) |
|
return; |
|
|
|
strlcpy(mips_machine_name, name, sizeof(mips_machine_name)); |
|
pr_info("MIPS: machine is %s\n", mips_get_machine_name()); |
|
} |
|
|
|
char *mips_get_machine_name(void) |
|
{ |
|
return mips_machine_name; |
|
} |
|
|
|
#ifdef CONFIG_USE_OF |
|
void __init early_init_dt_add_memory_arch(u64 base, u64 size) |
|
{ |
|
return add_memory_region(base, size, BOOT_MEM_RAM); |
|
} |
|
|
|
void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align) |
|
{ |
|
return __alloc_bootmem(size, align, __pa(MAX_DMA_ADDRESS)); |
|
} |
|
|
|
void __init __dt_setup_arch(void *bph) |
|
{ |
|
if (!early_init_dt_scan(bph)) |
|
return; |
|
|
|
mips_set_machine_name(of_flat_dt_get_machine_name()); |
|
} |
|
|
|
int __init __dt_register_buses(const char *bus0, const char *bus1) |
|
{ |
|
static struct of_device_id of_ids[3]; |
|
|
|
if (!of_have_populated_dt()) |
|
panic("device tree not present"); |
|
|
|
strlcpy(of_ids[0].compatible, bus0, sizeof(of_ids[0].compatible)); |
|
if (bus1) { |
|
strlcpy(of_ids[1].compatible, bus1, |
|
sizeof(of_ids[1].compatible)); |
|
} |
|
|
|
if (of_platform_populate(NULL, of_ids, NULL, NULL)) |
|
panic("failed to populate DT"); |
|
|
|
return 0; |
|
} |
|
|
|
#endif
|
|
|