1d4a67d9dSGabor Juhos /* 2d4a67d9dSGabor Juhos * Atheros AR71XX/AR724X/AR913X specific prom routines 3d4a67d9dSGabor Juhos * 4*556b6629SLaurent Fasnacht * Copyright (C) 2015 Laurent Fasnacht <l@libres.ch> 5d4a67d9dSGabor Juhos * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> 6d4a67d9dSGabor Juhos * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> 7d4a67d9dSGabor Juhos * 8d4a67d9dSGabor Juhos * This program is free software; you can redistribute it and/or modify it 9d4a67d9dSGabor Juhos * under the terms of the GNU General Public License version 2 as published 10d4a67d9dSGabor Juhos * by the Free Software Foundation. 11d4a67d9dSGabor Juhos */ 12d4a67d9dSGabor Juhos 13d4a67d9dSGabor Juhos #include <linux/kernel.h> 14d4a67d9dSGabor Juhos #include <linux/init.h> 15d4a67d9dSGabor Juhos #include <linux/io.h> 16d4a67d9dSGabor Juhos #include <linux/string.h> 17ebf71ec7SAlban Bedel #include <linux/initrd.h> 18d4a67d9dSGabor Juhos 19d4a67d9dSGabor Juhos #include <asm/bootinfo.h> 20d4a67d9dSGabor Juhos #include <asm/addrspace.h> 2111a0f40bSAlban Bedel #include <asm/fw/fw.h> 22d4a67d9dSGabor Juhos 23d4a67d9dSGabor Juhos #include "common.h" 24d4a67d9dSGabor Juhos 25d4a67d9dSGabor Juhos void __init prom_init(void) 26d4a67d9dSGabor Juhos { 2711a0f40bSAlban Bedel fw_init_cmdline(); 28ebf71ec7SAlban Bedel 29*556b6629SLaurent Fasnacht #ifdef CONFIG_BLK_DEV_INITRD 30ebf71ec7SAlban Bedel /* Read the initrd address from the firmware environment */ 31ebf71ec7SAlban Bedel initrd_start = fw_getenvl("initrd_start"); 32ebf71ec7SAlban Bedel if (initrd_start) { 33ebf71ec7SAlban Bedel initrd_start = KSEG0ADDR(initrd_start); 34ebf71ec7SAlban Bedel initrd_end = initrd_start + fw_getenvl("initrd_size"); 35ebf71ec7SAlban Bedel } 36*556b6629SLaurent Fasnacht #endif 37d4a67d9dSGabor Juhos } 38d4a67d9dSGabor Juhos 39d4a67d9dSGabor Juhos void __init prom_free_prom_memory(void) 40d4a67d9dSGabor Juhos { 41d4a67d9dSGabor Juhos /* We do not have to prom memory to free */ 42d4a67d9dSGabor Juhos } 43