| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright 2014 Google Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #include <cbmem.h> |
| #include <soc/addressmap.h> |
| |
| void *cbmem_top(void) |
| { |
| static uintptr_t addr; |
| size_t fb_size; |
| |
| /* |
| * FIXME(adurbin): The TZ registers are not accessible to the AVP. |
| * Therefore, if there is a TZ carveout then it needs to be handled |
| * here while executing on the AVP in order to properly place the |
| * CBMEM region. |
| */ |
| |
| /* CBMEM starts downwards from the framebuffer. */ |
| if (addr == 0) |
| addr = framebuffer_attributes(&fb_size); |
| |
| return (void *)(addr << 20UL); |
| } |