| Rob Herring | 02fe785 | 2012-02-01 16:57:54 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2011 Calxeda, Inc. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License as published by the Free |
| 6 | * Software Foundation; either version 2 of the License, or (at your option) |
| 7 | * any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 12 | * more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License along with |
| 15 | * this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | #include <common.h> |
| 19 | #include <asm/io.h> |
| 20 | |
| 21 | #ifdef CONFIG_BOOTCOUNT_LIMIT |
| 22 | void bootcount_store(ulong a) |
| 23 | { |
| 24 | writel((BOOTCOUNT_MAGIC & 0xffff0000) | a, CONFIG_SYS_BOOTCOUNT_ADDR); |
| 25 | } |
| 26 | |
| 27 | ulong bootcount_load(void) |
| 28 | { |
| 29 | u32 tmp = readl(CONFIG_SYS_BOOTCOUNT_ADDR); |
| 30 | |
| 31 | if ((tmp & 0xffff0000) != (BOOTCOUNT_MAGIC & 0xffff0000)) |
| 32 | return 0; |
| 33 | else |
| 34 | return tmp & 0x0000ffff; |
| 35 | } |
| 36 | #endif |