| Ronald G. Minnich | 9831244 | 2016-02-12 22:37:48 +0000 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| Ronald G. Minnich | 9831244 | 2016-02-12 22:37:48 +0000 | [diff] [blame] | 4 | * |
| Martin Roth | b28f466 | 2018-05-26 17:58:47 -0600 | [diff] [blame] | 5 | * This program is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; version 2 of the License. |
| Ronald G. Minnich | 9831244 | 2016-02-12 22:37:48 +0000 | [diff] [blame] | 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | */ |
| 14 | |
| 15 | #include <cbmem.h> |
| 16 | |
| Arthur Heymans | 340e4b8 | 2019-10-23 17:25:58 +0200 | [diff] [blame] | 17 | void *cbmem_top_chipset(void) |
| Ronald G. Minnich | 9831244 | 2016-02-12 22:37:48 +0000 | [diff] [blame] | 18 | { |
| 19 | /* Top of cbmem is at lowest usable DRAM address below 4GiB. */ |
| 20 | /* For now, last 1M of 4G */ |
| 21 | void *ptr = (void *) ((1ULL << 32) - 1048576); |
| 22 | return ptr; |
| 23 | } |