1*d2912cb1SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-only 2d4a67d9dSGabor Juhos /* 3d4a67d9dSGabor Juhos * Atheros AR71XX/AR724X/AR913X specific prom routines 4d4a67d9dSGabor Juhos * 5556b6629SLaurent Fasnacht * Copyright (C) 2015 Laurent Fasnacht <l@libres.ch> 6d4a67d9dSGabor Juhos * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> 7d4a67d9dSGabor Juhos * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> 8d4a67d9dSGabor Juhos */ 9d4a67d9dSGabor Juhos 10d4a67d9dSGabor Juhos #include <linux/kernel.h> 11d4a67d9dSGabor Juhos #include <linux/init.h> 12d4a67d9dSGabor Juhos #include <linux/io.h> 13d4a67d9dSGabor Juhos #include <linux/string.h> 14ebf71ec7SAlban Bedel #include <linux/initrd.h> 15d4a67d9dSGabor Juhos 16d4a67d9dSGabor Juhos #include <asm/bootinfo.h> 17d4a67d9dSGabor Juhos #include <asm/addrspace.h> 1811a0f40bSAlban Bedel #include <asm/fw/fw.h> 19d4a67d9dSGabor Juhos 20d4a67d9dSGabor Juhos #include "common.h" 21d4a67d9dSGabor Juhos prom_init(void)22d4a67d9dSGabor Juhosvoid __init prom_init(void) 23d4a67d9dSGabor Juhos { 2411a0f40bSAlban Bedel fw_init_cmdline(); 25ebf71ec7SAlban Bedel 26556b6629SLaurent Fasnacht #ifdef CONFIG_BLK_DEV_INITRD 27ebf71ec7SAlban Bedel /* Read the initrd address from the firmware environment */ 28ebf71ec7SAlban Bedel initrd_start = fw_getenvl("initrd_start"); 29ebf71ec7SAlban Bedel if (initrd_start) { 30ebf71ec7SAlban Bedel initrd_start = KSEG0ADDR(initrd_start); 31ebf71ec7SAlban Bedel initrd_end = initrd_start + fw_getenvl("initrd_size"); 32ebf71ec7SAlban Bedel } 33556b6629SLaurent Fasnacht #endif 34d4a67d9dSGabor Juhos } 35