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}

 1// SPDX-License-Identifier: GPL-2.0-only
 2/*
 3 *  Atheros AR71XX/AR724X/AR913X specific prom routines
 4 *
 5 *  Copyright (C) 2015 Laurent Fasnacht <l@libres.ch>
 6 *  Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
 7 *  Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
 
 
 
 
 8 */
 9
10#include <linux/kernel.h>
11#include <linux/init.h>
12#include <linux/io.h>
13#include <linux/string.h>
14#include <linux/initrd.h>
15
16#include <asm/bootinfo.h>
17#include <asm/addrspace.h>
18#include <asm/fw/fw.h>
19
20#include "common.h"
21
22void __init prom_init(void)
23{
24	fw_init_cmdline();
25
26#ifdef CONFIG_BLK_DEV_INITRD
27	/* Read the initrd address from the firmware environment */
28	initrd_start = fw_getenvl("initrd_start");
29	if (initrd_start) {
30		initrd_start = KSEG0ADDR(initrd_start);
31		initrd_end = initrd_start + fw_getenvl("initrd_size");
32	}
33#endif
 
 
 
 
 
34}