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d4a67d9d GJ |
1 | /* |
2 | * Atheros AR71XX/AR724X/AR913X specific prom routines | |
3 | * | |
556b6629 | 4 | * Copyright (C) 2015 Laurent Fasnacht <l@libres.ch> |
d4a67d9d GJ |
5 | * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org> |
6 | * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify it | |
9 | * under the terms of the GNU General Public License version 2 as published | |
10 | * by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/kernel.h> | |
14 | #include <linux/init.h> | |
15 | #include <linux/io.h> | |
16 | #include <linux/string.h> | |
ebf71ec7 | 17 | #include <linux/initrd.h> |
d4a67d9d GJ |
18 | |
19 | #include <asm/bootinfo.h> | |
20 | #include <asm/addrspace.h> | |
11a0f40b | 21 | #include <asm/fw/fw.h> |
d4a67d9d GJ |
22 | |
23 | #include "common.h" | |
24 | ||
d4a67d9d GJ |
25 | void __init prom_init(void) |
26 | { | |
11a0f40b | 27 | fw_init_cmdline(); |
ebf71ec7 | 28 | |
556b6629 | 29 | #ifdef CONFIG_BLK_DEV_INITRD |
ebf71ec7 AB |
30 | /* Read the initrd address from the firmware environment */ |
31 | initrd_start = fw_getenvl("initrd_start"); | |
32 | if (initrd_start) { | |
33 | initrd_start = KSEG0ADDR(initrd_start); | |
34 | initrd_end = initrd_start + fw_getenvl("initrd_size"); | |
35 | } | |
556b6629 | 36 | #endif |
d4a67d9d GJ |
37 | } |
38 | ||
39 | void __init prom_free_prom_memory(void) | |
40 | { | |
41 | /* We do not have to prom memory to free */ | |
42 | } |