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9a7da182fa
This way when that dram "banks" are displayed, there's some useful information there. The number of "banks" we claim to have needs to be adjusted so that it covers the number of RAM e820 regions we expect to have/care about. This needs to be done after "RAM" initialization even though we always run from RAM. The bd pointer in the global data structure doesn't automatically point to anything, and it isn't set up until "RAM" is available since, I assume, it would take too much space in the very constrained pre-RAM environment. Signed-off-by: Gabe Black <gabeblack@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
91 lines
2.4 KiB
C
91 lines
2.4 KiB
C
/*
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* Copyright (c) 2011 The Chromium OS Authors.
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* (C) Copyright 2010,2011
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* Graeme Russ, <graeme.russ@gmail.com>
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*
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* See file CREDITS for list of people who contributed to this
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* project.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but without any warranty; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include <common.h>
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#include <malloc.h>
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#include <asm/e820.h>
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#include <asm/u-boot-x86.h>
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#include <asm/global_data.h>
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#include <asm/arch-coreboot/sysinfo.h>
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#include <asm/arch-coreboot/tables.h>
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DECLARE_GLOBAL_DATA_PTR;
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unsigned install_e820_map(unsigned max_entries, struct e820entry *entries)
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{
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int i;
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unsigned num_entries = min(lib_sysinfo.n_memranges, max_entries);
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if (num_entries < lib_sysinfo.n_memranges) {
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printf("Warning: Limiting e820 map to %d entries.\n",
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num_entries);
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}
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for (i = 0; i < num_entries; i++) {
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struct memrange *memrange = &lib_sysinfo.memrange[i];
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entries[i].addr = memrange->base;
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entries[i].size = memrange->size;
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entries[i].type = memrange->type;
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}
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return num_entries;
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}
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int dram_init_f(void)
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{
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int i;
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phys_size_t ram_size = 0;
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for (i = 0; i < lib_sysinfo.n_memranges; i++) {
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struct memrange *memrange = &lib_sysinfo.memrange[i];
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unsigned long long end = memrange->base + memrange->size;
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if (memrange->type == CB_MEM_RAM && end > ram_size)
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ram_size = end;
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}
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gd->ram_size = ram_size;
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if (ram_size == 0)
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return -1;
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return 0;
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}
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int dram_init(void)
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{
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int i, j;
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if (CONFIG_NR_DRAM_BANKS) {
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for (i = 0, j = 0; i < lib_sysinfo.n_memranges; i++) {
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struct memrange *memrange = &lib_sysinfo.memrange[i];
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if (memrange->type == CB_MEM_RAM) {
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gd->bd->bi_dram[j].start = memrange->base;
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gd->bd->bi_dram[j].size = memrange->size;
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j++;
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if (j >= CONFIG_NR_DRAM_BANKS)
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break;
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}
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}
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}
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return 0;
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}
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