| // SPDX-License-Identifier: GPL-2.0-only | |
| /* | |
| * 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> | |
| */ | |
| #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 */ | |
| } |