124 lines
2.7 KiB
C
124 lines
2.7 KiB
C
|
/*
|
||
|
|
* 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.
|
||
|
|
*
|
||
|
|
* Copyright (C) 2010 John Crispin <john@phrozen.org>
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <linux/export.h>
|
||
|
|
#include <linux/clk.h>
|
||
|
|
#include <linux/bootmem.h>
|
||
|
|
#include <linux/of_platform.h>
|
||
|
|
#include <linux/of_fdt.h>
|
||
|
|
|
||
|
|
#include <asm/bootinfo.h>
|
||
|
|
#include <asm/time.h>
|
||
|
|
#include <asm/prom.h>
|
||
|
|
|
||
|
|
#include <lantiq.h>
|
||
|
|
|
||
|
|
#include "prom.h"
|
||
|
|
#include "clk.h"
|
||
|
|
|
||
|
|
/* access to the ebu needs to be locked between different drivers */
|
||
|
|
DEFINE_SPINLOCK(ebu_lock);
|
||
|
|
EXPORT_SYMBOL_GPL(ebu_lock);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* This is needed by the VPE loader code, just set it to 0 and assume
|
||
|
|
* that the firmware hardcodes this value to something useful.
|
||
|
|
*/
|
||
|
|
unsigned long physical_memsize = 0L;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* this struct is filled by the soc specific detection code and holds
|
||
|
|
* information about the specific soc type, revision and name
|
||
|
|
*/
|
||
|
|
static struct ltq_soc_info soc_info;
|
||
|
|
|
||
|
|
const char *get_system_type(void)
|
||
|
|
{
|
||
|
|
return soc_info.sys_type;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ltq_soc_type(void)
|
||
|
|
{
|
||
|
|
return soc_info.type;
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init prom_free_prom_memory(void)
|
||
|
|
{
|
||
|
|
}
|
||
|
|
|
||
|
|
static void __init prom_init_cmdline(void)
|
||
|
|
{
|
||
|
|
int argc = fw_arg0;
|
||
|
|
char **argv = (char **) KSEG1ADDR(fw_arg1);
|
||
|
|
int i;
|
||
|
|
|
||
|
|
arcs_cmdline[0] = '\0';
|
||
|
|
|
||
|
|
for (i = 0; i < argc; i++) {
|
||
|
|
char *p = (char *) KSEG1ADDR(argv[i]);
|
||
|
|
|
||
|
|
if (CPHYSADDR(p) && *p) {
|
||
|
|
strlcat(arcs_cmdline, p, sizeof(arcs_cmdline));
|
||
|
|
strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init plat_mem_setup(void)
|
||
|
|
{
|
||
|
|
void *dtb;
|
||
|
|
|
||
|
|
ioport_resource.start = IOPORT_RESOURCE_START;
|
||
|
|
ioport_resource.end = IOPORT_RESOURCE_END;
|
||
|
|
iomem_resource.start = IOMEM_RESOURCE_START;
|
||
|
|
iomem_resource.end = IOMEM_RESOURCE_END;
|
||
|
|
|
||
|
|
set_io_port_base((unsigned long) KSEG1);
|
||
|
|
|
||
|
|
if (fw_passed_dtb) /* UHI interface */
|
||
|
|
dtb = (void *)fw_passed_dtb;
|
||
|
|
else if (__dtb_start != __dtb_end)
|
||
|
|
dtb = (void *)__dtb_start;
|
||
|
|
else
|
||
|
|
panic("no dtb found");
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Load the devicetree. This causes the chosen node to be
|
||
|
|
* parsed resulting in our memory appearing
|
||
|
|
*/
|
||
|
|
__dt_setup_arch(dtb);
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init device_tree_init(void)
|
||
|
|
{
|
||
|
|
unflatten_and_copy_device_tree();
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init prom_init(void)
|
||
|
|
{
|
||
|
|
/* call the soc specific detetcion code and get it to fill soc_info */
|
||
|
|
ltq_soc_detect(&soc_info);
|
||
|
|
snprintf(soc_info.sys_type, LTQ_SYS_TYPE_LEN - 1, "%s rev %s",
|
||
|
|
soc_info.name, soc_info.rev_type);
|
||
|
|
soc_info.sys_type[LTQ_SYS_TYPE_LEN - 1] = '\0';
|
||
|
|
pr_info("SoC: %s\n", soc_info.sys_type);
|
||
|
|
prom_init_cmdline();
|
||
|
|
|
||
|
|
#if defined(CONFIG_MIPS_MT_SMP)
|
||
|
|
if (register_vsmp_smp_ops())
|
||
|
|
panic("failed to register_vsmp_smp_ops()");
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
int __init plat_of_setup(void)
|
||
|
|
{
|
||
|
|
return of_platform_default_populate(NULL, NULL, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
arch_initcall(plat_of_setup);
|