83 lines
2.2 KiB
C
83 lines
2.2 KiB
C
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/*
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* This file is part of the coreboot project.
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*
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* Copyright 2014 Google Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdlib.h>
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#include <stdint.h>
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#include <memrange.h>
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#include <cbmem.h>
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#include <console/console.h>
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#include <arch/mmu.h>
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#include "mmu_operations.h"
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#include <soc/addressmap.h>
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/* This structure keeps track of all the mmap memory ranges for t132 */
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static struct memranges t132_mmap_ranges;
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static void print_memranges(struct memranges *mmap_ranges)
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{
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struct range_entry *mmap_entry;
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printk(BIOS_DEBUG,"printing mmap entries\n");
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memranges_each_entry(mmap_entry, mmap_ranges) {
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printk(BIOS_DEBUG,"0x%p 0x%p 0x%lx\n",
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(void*)mmap_entry->begin,(void*)mmap_entry->end,mmap_entry->tag);
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}
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}
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static void tegra132_memrange_init(void)
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{
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uint64_t start,end;
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memranges_init_empty(&t132_mmap_ranges);
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memory_in_range_below_4gb(&start,&end);
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/* Device memory below DRAM */
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memranges_insert(&t132_mmap_ranges, 0, start * MiB, MA_DEV | MA_NS |
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MA_RW);
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/* DRAM */
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memranges_insert(&t132_mmap_ranges, start * MiB, (end-start) * MiB,
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MA_MEM | MA_NS | MA_RW);
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memory_in_range_above_4gb(&start,&end);
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memranges_insert(&t132_mmap_ranges, start * MiB, (end-start) * MiB,
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MA_MEM | MA_NS | MA_RW);
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/* SRAM */
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memranges_insert(&t132_mmap_ranges, TEGRA_SRAM_BASE, TEGRA_SRAM_SIZE,
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MA_MEM | MA_NS | MA_RW);
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print_memranges(&t132_mmap_ranges);
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}
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void tegra132_mmu_init(void)
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{
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uint64_t *ttb_buffer = (uint64_t*)CONFIG_TTB_BUFFER;
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uint64_t ttb_size = (uint64_t)CONFIG_TTB_SIZE;
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tegra132_memrange_init();
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mmu_init(&t132_mmap_ranges,ttb_buffer,ttb_size);
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mmu_enable((uint64_t)ttb_buffer);
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}
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