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author | Asami Doi <d0iasm.pub@gmail.com> | 2019-06-11 16:01:31 +0900 |
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committer | Julius Werner <jwerner@chromium.org> | 2019-08-08 01:12:06 +0000 |
commit | f795242f26887e08162b77c5ca2967f6ffcfee02 (patch) | |
tree | 0d159f206fee5103b9de062c97c7301c59ec306e /src/mainboard/emulation/qemu-aarch64/bootblock_custom.S | |
parent | 9c55ee34acb9007f8152f4ceddea8c44df29ba75 (diff) | |
download | coreboot-f795242f26887e08162b77c5ca2967f6ffcfee02.tar.xz |
mainboard/emulation/qemu-aarch64: Add new board for ARMv8
This CL adds a new board, QEMU/AArch64, for ARMv8. The machine supported
is virt which is a QEMU 2.8 ARM virtual machine. The default CPU of
qemu-system-aarch64 is Cortex-a15, so you need to specify a 64-bit cpu
via a flag.
To execute:
$ qemu-system-aarch64 -M virt,secure=on,virtualization=on \
-cpu cortex-a53 -bios build/coreboot.rom -m 8192M -nographic
Change-Id: Id7c0831b1ecf08785b4ec8139d809bad9b3e1eec
Signed-off-by: Asami Doi <d0iasm.pub@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/33387
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
Diffstat (limited to 'src/mainboard/emulation/qemu-aarch64/bootblock_custom.S')
-rw-r--r-- | src/mainboard/emulation/qemu-aarch64/bootblock_custom.S | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/src/mainboard/emulation/qemu-aarch64/bootblock_custom.S b/src/mainboard/emulation/qemu-aarch64/bootblock_custom.S new file mode 100644 index 0000000000..f9e85d0efc --- /dev/null +++ b/src/mainboard/emulation/qemu-aarch64/bootblock_custom.S @@ -0,0 +1,36 @@ +/* + * Early initialization code for aarch64 (a.k.a. armv8) + * + * Copyright 2019 Asami Doi <d0iasm.pub@gmail.com> + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include <arch/asm.h> + +ENTRY(_start) + /* Setup CPU. */ + bl arm64_init_cpu + + /* Get code positions. */ + ldr x1, =_flash + ldr x0, =_bootblock + + /* Calculate bootblock size. */ + ldr x2, =_ebootblock + sub x2, x2, x0 + + /* Call memcpy in arch/arm64/memcpy.S */ + bl memcpy + dmb sy + + /* Calculate relocation offset between bootblock in flash and in DRAM. */ + ldr x0, =_flash + ldr x1, =_bootblock + sub x1, x1, x0 + + /* Jump to main() in DRAM. */ + adr x0, main + add x0, x0, x1 + blr x0 +ENDPROC(_start) |