1 // SPDX-License-Identifier: GPL-2.0-only <<
2 /* 1 /*
3 * Atheros AR71XX/AR724X/AR913X specific prom 2 * Atheros AR71XX/AR724X/AR913X specific prom routines
4 * 3 *
5 * Copyright (C) 2015 Laurent Fasnacht <l@lib 4 * Copyright (C) 2015 Laurent Fasnacht <l@libres.ch>
6 * Copyright (C) 2008-2010 Gabor Juhos <juhos 5 * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
7 * Copyright (C) 2008 Imre Kaloz <kaloz@openw 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.
8 */ 11 */
9 12
10 #include <linux/kernel.h> 13 #include <linux/kernel.h>
11 #include <linux/init.h> 14 #include <linux/init.h>
12 #include <linux/io.h> 15 #include <linux/io.h>
13 #include <linux/string.h> 16 #include <linux/string.h>
14 #include <linux/initrd.h> 17 #include <linux/initrd.h>
15 18
16 #include <asm/bootinfo.h> 19 #include <asm/bootinfo.h>
17 #include <asm/addrspace.h> 20 #include <asm/addrspace.h>
18 #include <asm/fw/fw.h> 21 #include <asm/fw/fw.h>
19 22
20 #include "common.h" 23 #include "common.h"
21 24
22 void __init prom_init(void) 25 void __init prom_init(void)
23 { 26 {
24 fw_init_cmdline(); 27 fw_init_cmdline();
25 28
26 #ifdef CONFIG_BLK_DEV_INITRD 29 #ifdef CONFIG_BLK_DEV_INITRD
27 /* Read the initrd address from the fi 30 /* Read the initrd address from the firmware environment */
28 initrd_start = fw_getenvl("initrd_star 31 initrd_start = fw_getenvl("initrd_start");
29 if (initrd_start) { 32 if (initrd_start) {
30 initrd_start = KSEG0ADDR(initr 33 initrd_start = KSEG0ADDR(initrd_start);
31 initrd_end = initrd_start + fw 34 initrd_end = initrd_start + fw_getenvl("initrd_size");
32 } 35 }
33 #endif 36 #endif
>> 37 }
>> 38
>> 39 void __init prom_free_prom_memory(void)
>> 40 {
>> 41 /* We do not have to prom memory to free */
34 } 42 }
35 43
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