mirror of
https://github.com/torvalds/linux.git
synced 2024-12-29 06:12:08 +00:00
58 lines
1.2 KiB
C
58 lines
1.2 KiB
C
|
/*
|
||
|
|
* Atheros AR71XX/AR724X/AR913X specific prom routines
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
|
||
|
|
* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
|
||
|
|
*
|
||
|
|
* 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/kernel.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/io.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
|
||
|
|
#include <asm/bootinfo.h>
|
||
|
|
#include <asm/addrspace.h>
|
||
|
|
|
||
|
|
#include "common.h"
|
||
|
|
|
||
|
|
static inline int is_valid_ram_addr(void *addr)
|
||
|
|
{
|
||
|
|
if (((u32) addr > KSEG0) &&
|
||
|
|
((u32) addr < (KSEG0 + ATH79_MEM_SIZE_MAX)))
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
if (((u32) addr > KSEG1) &&
|
||
|
|
((u32) addr < (KSEG1 + ATH79_MEM_SIZE_MAX)))
|
||
|
|
return 1;
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static __init void ath79_prom_init_cmdline(int argc, char **argv)
|
||
|
|
{
|
||
|
|
int i;
|
||
|
|
|
||
|
|
if (!is_valid_ram_addr(argv))
|
||
|
|
return;
|
||
|
|
|
||
|
|
for (i = 0; i < argc; i++)
|
||
|
|
if (is_valid_ram_addr(argv[i])) {
|
||
|
|
strlcat(arcs_cmdline, " ", sizeof(arcs_cmdline));
|
||
|
|
strlcat(arcs_cmdline, argv[i], sizeof(arcs_cmdline));
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init prom_init(void)
|
||
|
|
{
|
||
|
|
ath79_prom_init_cmdline(fw_arg0, (char **)fw_arg1);
|
||
|
|
}
|
||
|
|
|
||
|
|
void __init prom_free_prom_memory(void)
|
||
|
|
{
|
||
|
|
/* We do not have to prom memory to free */
|
||
|
|
}
|