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linux-next/arch/mips/ath79/prom.c
Laurent Fasnacht 556b6629c1 MIPS: ath79: fix build problem if CONFIG_BLK_DEV_INITRD is not set
initrd_start is defined in init/do_mounts_initrd.c, which is only
included in kernel if CONFIG_BLK_DEV_INITRD=y.

Signed-off-by: Laurent Fasnacht <l@libres.ch>
Cc: linux-mips@linux-mips.org
Cc: trivial@kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/10198/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2015-05-29 20:23:36 +02:00

43 lines
1.0 KiB
C

/*
* Atheros AR71XX/AR724X/AR913X specific prom routines
*
* Copyright (C) 2015 Laurent Fasnacht <l@libres.ch>
* 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 <linux/initrd.h>
#include <asm/bootinfo.h>
#include <asm/addrspace.h>
#include <asm/fw/fw.h>
#include "common.h"
void __init prom_init(void)
{
fw_init_cmdline();
#ifdef CONFIG_BLK_DEV_INITRD
/* Read the initrd address from the firmware environment */
initrd_start = fw_getenvl("initrd_start");
if (initrd_start) {
initrd_start = KSEG0ADDR(initrd_start);
initrd_end = initrd_start + fw_getenvl("initrd_size");
}
#endif
}
void __init prom_free_prom_memory(void)
{
/* We do not have to prom memory to free */
}