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ebf71ec7e1
Allow loading an initrd passed by the firmware. Signed-off-by: Alban Bedel <albeu@free.fr> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Patchwork: https://patchwork.linux-mips.org/patch/8354/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
40 lines
969 B
C
40 lines
969 B
C
/*
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* Atheros AR71XX/AR724X/AR913X specific prom routines
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*
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* Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
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* Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published
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* by the Free Software Foundation.
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/io.h>
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#include <linux/string.h>
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#include <linux/initrd.h>
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#include <asm/bootinfo.h>
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#include <asm/addrspace.h>
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#include <asm/fw/fw.h>
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#include "common.h"
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void __init prom_init(void)
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{
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fw_init_cmdline();
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/* Read the initrd address from the firmware environment */
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initrd_start = fw_getenvl("initrd_start");
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if (initrd_start) {
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initrd_start = KSEG0ADDR(initrd_start);
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initrd_end = initrd_start + fw_getenvl("initrd_size");
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}
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}
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void __init prom_free_prom_memory(void)
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{
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/* We do not have to prom memory to free */
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}
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