xref: /OK3568_Linux_fs/u-boot/drivers/bootcount/bootcount_env.c (revision 4882a59341e53eb6f0b4789bf948001014eff981) 
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * (C) Copyright 2013
3*4882a593Smuzhiyun  * Heiko Schocher, DENX Software Engineering, hs@denx.de.
4*4882a593Smuzhiyun  *
5*4882a593Smuzhiyun  * SPDX-License-Identifier:	GPL-2.0+
6*4882a593Smuzhiyun  */
7*4882a593Smuzhiyun 
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <environment.h>
10*4882a593Smuzhiyun 
bootcount_store(ulong a)11*4882a593Smuzhiyun void bootcount_store(ulong a)
12*4882a593Smuzhiyun {
13*4882a593Smuzhiyun 	int upgrade_available = env_get_ulong("upgrade_available", 10, 0);
14*4882a593Smuzhiyun 
15*4882a593Smuzhiyun 	if (upgrade_available) {
16*4882a593Smuzhiyun 		env_set_ulong("bootcount", a);
17*4882a593Smuzhiyun 		env_save();
18*4882a593Smuzhiyun 	}
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun 
bootcount_load(void)21*4882a593Smuzhiyun ulong bootcount_load(void)
22*4882a593Smuzhiyun {
23*4882a593Smuzhiyun 	int upgrade_available = env_get_ulong("upgrade_available", 10, 0);
24*4882a593Smuzhiyun 	ulong val = 0;
25*4882a593Smuzhiyun 
26*4882a593Smuzhiyun 	if (upgrade_available)
27*4882a593Smuzhiyun 		val = env_get_ulong("bootcount", 10, 0);
28*4882a593Smuzhiyun 
29*4882a593Smuzhiyun 	return val;
30*4882a593Smuzhiyun }
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