| /* |
| * |
| * Copyright (C) 2008 Advanced Micro Devices, Inc. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE |
| * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
| * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
| * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
| * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
| * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
| * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
| * SUCH DAMAGE. |
| */ |
| |
| #include <libpayload-config.h> |
| #include <libpayload.h> |
| #include <coreboot_tables.h> |
| #include <multiboot_tables.h> |
| |
| #define CPU_KHZ_DEFAULT 200 |
| |
| /** |
| * This is a global structure that is used through the library - we set it |
| * up initially with some dummy values - hopefully they will be overridden. |
| */ |
| struct sysinfo_t lib_sysinfo = { |
| .cpu_khz = CPU_KHZ_DEFAULT, |
| #if CONFIG(LP_SERIAL_CONSOLE) |
| .ser_ioport = CONFIG_LP_SERIAL_IOBASE, |
| #else |
| .ser_ioport = 0x3f8, |
| #endif |
| }; |
| |
| int lib_get_sysinfo(void) |
| { |
| int ret; |
| |
| #if CONFIG(LP_MULTIBOOT) |
| /* Get the information from the multiboot tables, |
| * if they exist */ |
| get_multiboot_info(&lib_sysinfo); |
| #endif |
| |
| /* Get information from the coreboot tables, |
| * if they exist */ |
| |
| ret = get_coreboot_info(&lib_sysinfo); |
| |
| /* Get the CPU speed (for delays) if not set from the default value. */ |
| if (lib_sysinfo.cpu_khz == CPU_KHZ_DEFAULT) |
| lib_sysinfo.cpu_khz = get_cpu_speed(); |
| |
| if (!lib_sysinfo.n_memranges) { |
| /* If we can't get a good memory range, use the default. */ |
| lib_sysinfo.n_memranges = 2; |
| |
| lib_sysinfo.memrange[0].base = 0; |
| lib_sysinfo.memrange[0].size = 640 * 1024; |
| lib_sysinfo.memrange[0].type = CB_MEM_RAM; |
| |
| lib_sysinfo.memrange[1].base = 1024 * 1024; |
| lib_sysinfo.memrange[1].size = 31 * 1024 * 1024; |
| lib_sysinfo.memrange[1].type = CB_MEM_RAM; |
| } |
| |
| #if CONFIG(LP_PCI) |
| pci_init(&lib_sysinfo.pacc); |
| pci_scan_bus(&lib_sysinfo.pacc); |
| #endif |
| |
| return ret; |
| } |