diff options
| author | Jean-Philippe Brucker <jean-philippe.brucker@arm.com> | 2015-12-04 12:43:20 +0000 |
|---|---|---|
| committer | Mark Rutland <mark.rutland@arm.com> | 2016-06-15 10:27:35 +0100 |
| commit | e3fe71d0a592064adf1bfde81193b23df03c3469 (patch) | |
| tree | 617f12b38d2b94c0b9b15db0238b0849552614f5 /arch/aarch32/common.S | |
| parent | 5933e49b6f45fa18dd1e32d14372bb60837ff954 (diff) | |
Add AArch32 to the boot-wrapper
This patch allows to build a 32-bit boot-wrapper, and create a complete
linux-system.axf for models that start in AArch32. Most of the code is a
simple translation of the AArch64 side.
We add an --aarch32-bw argument to ./configure, and bump the version to
0.2, to welcome this new architecture.
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Diffstat (limited to 'arch/aarch32/common.S')
| -rw-r--r-- | arch/aarch32/common.S | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/aarch32/common.S b/arch/aarch32/common.S new file mode 100644 index 0000000..6b11e62 --- /dev/null +++ b/arch/aarch32/common.S @@ -0,0 +1,17 @@ +/* + * arch/aarch32/common.S - common definitions useful for boot code + * + * Copyright (C) 2013 ARM Limited. All rights reserved. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE.txt file. + */ + +#include <asm/cpu.h> + + /* Returns mpidr in \dest, clobbers \tmp and flags */ + .macro cpuid dest, tmp + mrc p15, 0, \dest, c0, c0, 5 @ MPIDR + ldr \tmp, =MPIDR_ID_BITS + ands \dest, \dest, \tmp + .endm |