f2134f3bab
Old map does not work on recent qemu. New map puts coreboot to ROM, so it behave more like most real machines would. For details on this map see comment in memlayout.ld Change-Id: If1f3328b511daca32ba93da5a6d44402508b37e9 Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Reviewed-on: https://review.coreboot.org/13748 Reviewed-by: Aaron Durbin <adurbin@chromium.org> Tested-by: build bot (Jenkins)
50 lines
1.5 KiB
Text
50 lines
1.5 KiB
Text
/*
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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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#include <memlayout.h>
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#include <arch/header.ld>
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/*
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* Memory map for qemu vexpress-a9 since
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* 6ec1588e09770ac7e9c60194faff6101111fc7f0 (Jul 2014):
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*
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* 0x0000_0000: NOR flash
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* 0x1000_0000: I/O map address
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* 0x6000_0000: RAM
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*/
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/*
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* This map is designed to work with new qemu vexpress memory layout and
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* with -bios option which neatly puts coreboot into flash and so payloads
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* can find CBFS and we don't risk overwriting CBFS.
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*
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* Prior to Jul 2014 qemu aliased 0 to begining of RAM instead of flash
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* and -bios was unusable as $pc pointed to 0 which was zero-filled as a
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* workaround we suggested using -kernel but this still had all the issues
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* of having fake-ROM in RAM. In fact it was even worse as fake ROM ends
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* up exactly at addresses needed to load Linux.
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*/
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SECTIONS
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{
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/* TODO: does this thing emulate SRAM? */
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BOOTBLOCK(0x00000, 64K)
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DRAM_START(0x60000000)
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STACK(0x60000000, 64K)
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ROMSTAGE(0x60010000, 128K)
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RAMSTAGE(0x60030000, 16M)
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}
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