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| author | Marek Vasut <marex@denx.de> | 2023-07-01 18:26:19 +0300 |
|---|---|---|
| committer | Heinrich Schuchardt <heinrich.schuchardt@canonical.com> | 2023-07-01 18:29:15 +0300 |
| commit | 2b17dd1d9d8ca2cfc7f5e964384d4d8418904c35 (patch) | |
| tree | 48b68138529a415c4a39ef734063d3fa2ebca864 /arch/arm/include/asm/arm11.h | |
| parent | c32248601c95e1cacf31905c7f5e4648b722d8c6 (diff) | |
| download | u-boot-2b17dd1d9d8ca2cfc7f5e964384d4d8418904c35.tar.xz | |
ARM: arm11: Add C wrapper for allow_unaligned()
Rename current assembler implementation of allow_unaligned() to
arm11_arch_cp15_allow_unaligned() and add it into arm11.h header,
then add C wrapper of allow_unaligned().
This fixes misbehavior when linking U-Boot, where the CPU specific
allow_unaligned() implementation was ignored and instead the
__weak allow_unaligned() implementation from lib/efi_loader/efi_setup.c
was used, which led to "data abort" just before booting Linux via tftp,
in efi_dp_from_file() -> path_to_uefi() -> utf16_put() .
The problem is triggerd by c7c0ca37673 ("efi_loader: fix efi_dp_from_file()") .
Adding the wrapper fixes the problem.
Fixes: d47a774680d ("arm: arm11: allow unaligned memory access")
Signed-off-by: Marek Vasut <marex@denx.de>
Diffstat (limited to 'arch/arm/include/asm/arm11.h')
| -rw-r--r-- | arch/arm/include/asm/arm11.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arm11.h b/arch/arm/include/asm/arm11.h new file mode 100644 index 0000000000..5276f735ef --- /dev/null +++ b/arch/arm/include/asm/arm11.h @@ -0,0 +1,12 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (C) 2023 Marek Vasut <marex@denx.de> + */ +#ifndef ARM11_H +#define ARM11_H + +#ifndef __ASSEMBLY__ +void arm11_arch_cp15_allow_unaligned(void); +#endif /* ! __ASSEMBLY__ */ + +#endif /* ARM11_H */ |