1 /* 2 * Copyright (c) 2011 The Chromium OS Authors. 3 * (C) Copyright 2010,2011 4 * Graeme Russ, <graeme.russ@gmail.com> 5 * 6 * See file CREDITS for list of people who contributed to this 7 * project. 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License as 11 * published by the Free Software Foundation; either version 2 of 12 * the License, or (at your option) any later version. 13 * 14 * This program is distributed in the hope that it will be useful, 15 * but without any warranty; without even the implied warranty of 16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 17 * GNU General Public License for more details. 18 * 19 * You should have received a copy of the GNU General Public License 20 * along with this program; if not, write to the Free Software 21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, 22 * MA 02111-1307 USA 23 */ 24 25 #include <common.h> 26 #include <malloc.h> 27 #include <asm/e820.h> 28 #include <asm/u-boot-x86.h> 29 #include <asm/global_data.h> 30 #include <asm/arch-coreboot/sysinfo.h> 31 #include <asm/arch-coreboot/tables.h> 32 33 DECLARE_GLOBAL_DATA_PTR; 34 35 unsigned install_e820_map(unsigned max_entries, struct e820entry *entries) 36 { 37 int i; 38 39 unsigned num_entries = min(lib_sysinfo.n_memranges, max_entries); 40 if (num_entries < lib_sysinfo.n_memranges) { 41 printf("Warning: Limiting e820 map to %d entries.\n", 42 num_entries); 43 } 44 for (i = 0; i < num_entries; i++) { 45 struct memrange *memrange = &lib_sysinfo.memrange[i]; 46 47 entries[i].addr = memrange->base; 48 entries[i].size = memrange->size; 49 entries[i].type = memrange->type; 50 } 51 return num_entries; 52 } 53 54 int dram_init_f(void) 55 { 56 int i; 57 phys_size_t ram_size = 0; 58 59 for (i = 0; i < lib_sysinfo.n_memranges; i++) { 60 struct memrange *memrange = &lib_sysinfo.memrange[i]; 61 unsigned long long end = memrange->base + memrange->size; 62 63 if (memrange->type == CB_MEM_RAM && end > ram_size) 64 ram_size = end; 65 } 66 gd->ram_size = ram_size; 67 if (ram_size == 0) 68 return -1; 69 return 0; 70 } 71 72 int dram_init(void) 73 { 74 return 0; 75 } 76