2 * This program is free software; you can redistribute it and/or modify it
3 * under the terms of the GNU General Public License version 2 as published
4 * by the Free Software Foundation.
6 * Copyright (C) 2010 John Crispin <john@phrozen.org>
9 #include <linux/export.h>
10 #include <linux/clk.h>
11 #include <linux/bootmem.h>
12 #include <linux/of_fdt.h>
14 #include <asm/bootinfo.h>
23 /* access to the ebu needs to be locked between different drivers */
24 DEFINE_SPINLOCK(ebu_lock
);
25 EXPORT_SYMBOL_GPL(ebu_lock
);
28 * This is needed by the VPE loader code, just set it to 0 and assume
29 * that the firmware hardcodes this value to something useful.
31 unsigned long physical_memsize
= 0L;
34 * this struct is filled by the soc specific detection code and holds
35 * information about the specific soc type, revision and name
37 static struct ltq_soc_info soc_info
;
39 const char *get_system_type(void)
41 return soc_info
.sys_type
;
44 int ltq_soc_type(void)
49 void __init
prom_free_prom_memory(void)
53 static void __init
prom_init_cmdline(void)
56 char **argv
= (char **) KSEG1ADDR(fw_arg1
);
59 arcs_cmdline
[0] = '\0';
61 for (i
= 0; i
< argc
; i
++) {
62 char *p
= (char *) KSEG1ADDR(argv
[i
]);
64 if (CPHYSADDR(p
) && *p
) {
65 strlcat(arcs_cmdline
, p
, sizeof(arcs_cmdline
));
66 strlcat(arcs_cmdline
, " ", sizeof(arcs_cmdline
));
71 void __init
plat_mem_setup(void)
75 ioport_resource
.start
= IOPORT_RESOURCE_START
;
76 ioport_resource
.end
= IOPORT_RESOURCE_END
;
77 iomem_resource
.start
= IOMEM_RESOURCE_START
;
78 iomem_resource
.end
= IOMEM_RESOURCE_END
;
80 set_io_port_base((unsigned long) KSEG1
);
82 if (fw_passed_dtb
) /* UHI interface */
83 dtb
= (void *)fw_passed_dtb
;
84 else if (__dtb_start
!= __dtb_end
)
85 dtb
= (void *)__dtb_start
;
87 panic("no dtb found");
90 * Load the devicetree. This causes the chosen node to be
91 * parsed resulting in our memory appearing
96 void __init
device_tree_init(void)
98 unflatten_and_copy_device_tree();
101 void __init
prom_init(void)
103 /* call the soc specific detetcion code and get it to fill soc_info */
104 ltq_soc_detect(&soc_info
);
105 snprintf(soc_info
.sys_type
, LTQ_SYS_TYPE_LEN
- 1, "%s rev %s",
106 soc_info
.name
, soc_info
.rev_type
);
107 soc_info
.sys_type
[LTQ_SYS_TYPE_LEN
- 1] = '\0';
108 pr_info("SoC: %s\n", soc_info
.sys_type
);
111 #if defined(CONFIG_MIPS_MT_SMP)
112 if (register_vsmp_smp_ops())
113 panic("failed to register_vsmp_smp_ops()");