Stefan Reinauer | 8af0d03 | 2012-12-14 13:05:21 -0800 | [diff] [blame] | 1 | /* |
| 2 | * This file is part of the libpayload project. |
| 3 | * |
| 4 | * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| 5 | * |
| 6 | * Redistribution and use in source and binary forms, with or without |
| 7 | * modification, are permitted provided that the following conditions |
| 8 | * are met: |
| 9 | * 1. Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * 2. Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * 3. The name of the author may not be used to endorse or promote products |
| 15 | * derived from this software without specific prior written permission. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| 18 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 19 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 20 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| 21 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| 22 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| 23 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| 24 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| 25 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| 26 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| 27 | * SUCH DAMAGE. |
| 28 | */ |
| 29 | |
| 30 | #include <libpayload-config.h> |
| 31 | #include <libpayload.h> |
| 32 | #include <coreboot_tables.h> |
| 33 | |
| 34 | /** |
| 35 | * This is a global structure that is used through the library - we set it |
| 36 | * up initially with some dummy values - hopefully they will be overridden. |
| 37 | */ |
| 38 | struct sysinfo_t lib_sysinfo = { |
| 39 | .cpu_khz = 200, |
| 40 | }; |
| 41 | |
| 42 | int lib_get_sysinfo(void) |
| 43 | { |
| 44 | int ret; |
| 45 | |
| 46 | /* Get the CPU speed (for delays). */ |
| 47 | lib_sysinfo.cpu_khz = get_cpu_speed(); |
| 48 | |
| 49 | /* Get information from the coreboot tables, |
| 50 | * if they exist */ |
| 51 | |
| 52 | ret = get_coreboot_info(&lib_sysinfo); |
| 53 | |
| 54 | if (!lib_sysinfo.n_memranges) { |
| 55 | /* If we can't get a good memory range, use the default. */ |
| 56 | lib_sysinfo.n_memranges = 2; |
| 57 | |
| 58 | lib_sysinfo.memrange[0].base = 0; |
| 59 | lib_sysinfo.memrange[0].size = 1024 * 1024; |
| 60 | lib_sysinfo.memrange[0].type = CB_MEM_RAM; |
| 61 | } |
| 62 | |
| 63 | return ret; |
| 64 | } |