diff options
| author | Patrick Rudolph <patrick.rudolph@9elements.com> | 2020-01-23 13:32:08 +0100 |
|---|---|---|
| committer | Philipp Deppenwiese <zaolin.daisuki@gmail.com> | 2020-03-02 10:33:38 +0000 |
| commit | 977b8e83cb0a71af1143d3ab56fd0f95bf8d6c70 (patch) | |
| tree | f4c022e42c39fc009690c5c2a76283648714dd11 /src | |
| parent | e1498ce6da91c3e6bc61c67213f10ab927704510 (diff) | |
mb/emulation/qemu-aarch64: Add MMU support
Enable MMU in bootblock. Makes qemu look more similar to real hardware.
There's no real need to activate the MMU.
Tested on qemu-system-aarch64: 5 page entries are used out of 32.
Change-Id: Ifaed9d3cc11520f180a732d51adce634621b5844
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/38534
Reviewed-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/mainboard/emulation/qemu-aarch64/Makefile.inc | 2 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-aarch64/bootblock.c | 33 | ||||
| -rw-r--r-- | src/mainboard/emulation/qemu-aarch64/memlayout.ld | 6 |
3 files changed, 38 insertions, 3 deletions
diff --git a/src/mainboard/emulation/qemu-aarch64/Makefile.inc b/src/mainboard/emulation/qemu-aarch64/Makefile.inc index dc0e9f462f..4d5f2bd5fa 100644 --- a/src/mainboard/emulation/qemu-aarch64/Makefile.inc +++ b/src/mainboard/emulation/qemu-aarch64/Makefile.inc @@ -5,6 +5,8 @@ # # SPDX-License-Identifier: GPL-2.0-or-later +bootblock-y += bootblock.c + romstage-y += cbmem.c bootblock-y += media.c diff --git a/src/mainboard/emulation/qemu-aarch64/bootblock.c b/src/mainboard/emulation/qemu-aarch64/bootblock.c new file mode 100644 index 0000000000..280f77ec1e --- /dev/null +++ b/src/mainboard/emulation/qemu-aarch64/bootblock.c @@ -0,0 +1,33 @@ +/* + * This file is part of the coreboot project. + * + * 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. + */ + +#include <arch/mmu.h> +#include <bootblock_common.h> +#include <symbols.h> + +void bootblock_mainboard_init(void) +{ + mmu_init(); + + /* Everything below DRAM is device memory */ + mmu_config_range((void *)0, (uintptr_t)_dram, MA_DEV | MA_RW); + /* Set a dummy value for DRAM. ramstage should update the mapping. */ + mmu_config_range(_dram, 1 * GiB, MA_MEM | MA_RW); + + mmu_config_range(_ttb, REGION_SIZE(ttb), MA_MEM | MA_S | MA_RW); + mmu_config_range(_bootblock, REGION_SIZE(bootblock), MA_MEM | MA_S | MA_RW); + mmu_config_range(_romstage, REGION_SIZE(romstage), MA_MEM | MA_S | MA_RW); + mmu_config_range(_ramstage, REGION_SIZE(ramstage), MA_MEM | MA_S | MA_RW); + + mmu_enable(); +} diff --git a/src/mainboard/emulation/qemu-aarch64/memlayout.ld b/src/mainboard/emulation/qemu-aarch64/memlayout.ld index aba4205750..248d0abef0 100644 --- a/src/mainboard/emulation/qemu-aarch64/memlayout.ld +++ b/src/mainboard/emulation/qemu-aarch64/memlayout.ld @@ -27,8 +27,8 @@ SECTIONS STACK(0x60020000, 62K) FMAP_CACHE(0x6002F800, 2K) ROMSTAGE(0x60030000, 128K) - RAMSTAGE(0x60070000, 16M) + TTB(0x60070000, 128K) + RAMSTAGE(0x600b0000, 16M) - TTB(0x61100000, 16K) - POSTRAM_CBFS_CACHE(0x61110000, 1M) + POSTRAM_CBFS_CACHE(0x61200000, 1M) } |