1/*
2 *  Atheros AR71XX/AR724X/AR913X specific prom routines
3 *
4 *  Copyright (C) 2015 Laurent Fasnacht <l@libres.ch>
5 *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
6 *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
7 *
8 *  This program is free software; you can redistribute it and/or modify it
9 *  under the terms of the GNU General Public License version 2 as published
10 *  by the Free Software Foundation.
11 */
12
13#include <linux/kernel.h>
14#include <linux/init.h>
15#include <linux/io.h>
16#include <linux/string.h>
17#include <linux/initrd.h>
18
19#include <asm/bootinfo.h>
20#include <asm/addrspace.h>
21#include <asm/fw/fw.h>
22
23#include "common.h"
24
25void __init prom_init(void)
26{
27	fw_init_cmdline();
28
29#ifdef CONFIG_BLK_DEV_INITRD
30	/* Read the initrd address from the firmware environment */
31	initrd_start = fw_getenvl("initrd_start");
32	if (initrd_start) {
33		initrd_start = KSEG0ADDR(initrd_start);
34		initrd_end = initrd_start + fw_getenvl("initrd_size");
35	}
36#endif
37}
38
39void __init prom_free_prom_memory(void)
40{
41	/* We do not have to prom memory to free */
42}
43