1 // SPDX-License-Identifier: GPL-2.0-only 1 // SPDX-License-Identifier: GPL-2.0-only
2 /* 2 /*
3 * Atheros AR71XX/AR724X/AR913X specific prom 3 * Atheros AR71XX/AR724X/AR913X specific prom routines
4 * 4 *
5 * Copyright (C) 2015 Laurent Fasnacht <l@lib 5 * Copyright (C) 2015 Laurent Fasnacht <l@libres.ch>
6 * Copyright (C) 2008-2010 Gabor Juhos <juhos 6 * Copyright (C) 2008-2010 Gabor Juhos <juhosg@openwrt.org>
7 * Copyright (C) 2008 Imre Kaloz <kaloz@openw 7 * Copyright (C) 2008 Imre Kaloz <kaloz@openwrt.org>
8 */ 8 */
9 9
10 #include <linux/kernel.h> 10 #include <linux/kernel.h>
11 #include <linux/init.h> 11 #include <linux/init.h>
12 #include <linux/io.h> 12 #include <linux/io.h>
13 #include <linux/string.h> 13 #include <linux/string.h>
14 #include <linux/initrd.h> 14 #include <linux/initrd.h>
15 15
16 #include <asm/bootinfo.h> 16 #include <asm/bootinfo.h>
17 #include <asm/addrspace.h> 17 #include <asm/addrspace.h>
18 #include <asm/fw/fw.h> 18 #include <asm/fw/fw.h>
19 19
20 #include "common.h" 20 #include "common.h"
21 21
22 void __init prom_init(void) 22 void __init prom_init(void)
23 { 23 {
24 fw_init_cmdline(); 24 fw_init_cmdline();
25 25
26 #ifdef CONFIG_BLK_DEV_INITRD 26 #ifdef CONFIG_BLK_DEV_INITRD
27 /* Read the initrd address from the fi 27 /* Read the initrd address from the firmware environment */
28 initrd_start = fw_getenvl("initrd_star 28 initrd_start = fw_getenvl("initrd_start");
29 if (initrd_start) { 29 if (initrd_start) {
30 initrd_start = KSEG0ADDR(initr 30 initrd_start = KSEG0ADDR(initrd_start);
31 initrd_end = initrd_start + fw 31 initrd_end = initrd_start + fw_getenvl("initrd_size");
32 } 32 }
33 #endif 33 #endif
34 } 34 }
35 35
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