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/*
* 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 <stdlib.h>
#include <stdint.h>
#include <memrange.h>
#include <cbmem.h>
#include <console/console.h>
#include <arch/mmu.h>
#include "mmu_operations.h"
#include <soc/addressmap.h>
/* This structure keeps track of all the mmap memory ranges for t132 */
static struct memranges t132_mmap_ranges;
static void print_memranges(struct memranges *mmap_ranges)
{
struct range_entry *mmap_entry;
printk(BIOS_DEBUG,"printing mmap entries\n");
memranges_each_entry(mmap_entry, mmap_ranges) {
printk(BIOS_DEBUG,"0x%p 0x%p 0x%lx\n",
(void*)mmap_entry->begin,(void*)mmap_entry->end,mmap_entry->tag);
}
}
static void tegra132_memrange_init(struct memranges *map)
{
uint64_t start,end;
const unsigned long devmem = MA_DEV | MA_NS | MA_RW;
const unsigned long cachedmem = MA_MEM | MA_NS | MA_RW;
memranges_init_empty(map);
memory_in_range_below_4gb(&start,&end);
/* Device memory below DRAM */
memranges_insert(map, 0, start * MiB, devmem);
/* DRAM */
memranges_insert(map, start * MiB, (end-start) * MiB, cachedmem);
memory_in_range_above_4gb(&start,&end);
memranges_insert(map, start * MiB, (end-start) * MiB, cachedmem);
/* SRAM */
memranges_insert(map, TEGRA_SRAM_BASE, TEGRA_SRAM_SIZE, cachedmem);
}
void __attribute__((weak)) mainboard_add_memory_ranges(struct memranges *map)
{
/* Don't add any ranges by default. */
}
void tegra132_mmu_init(void)
{
uint64_t *ttb_buffer = (uint64_t*)CONFIG_TTB_BUFFER;
uint64_t ttb_size = (uint64_t)CONFIG_TTB_SIZE;
struct memranges *map = &t132_mmap_ranges;
tegra132_memrange_init(map);
mainboard_add_memory_ranges(map);
print_memranges(map);
mmu_init(map,ttb_buffer,ttb_size);
mmu_enable((uint64_t)ttb_buffer);
}
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