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arc770: enable unaligned access handling simulation in software

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This enables misaligned access handling by software in Linux kernel.

With some wireless drivers (ath9k-htc and mt7601u for example) we see
misaligned accesses here and there and to cope with that without
fixing stuff in the drivers we're just gracefully handling it on ARC.

Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>

SVN-Revision: 49134
This commit is contained in:
John Crispin
2016-04-09 10:25:16 +00:00
parent cac43c0b71
commit 9ef282cd96
2 changed files with 34 additions and 2 deletions
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5
target/linux/arc770/config-4.4
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@@ -19,7 +19,7 @@ CONFIG_ARC_DBG=y
# CONFIG_ARC_DBG_TLB_MISS_COUNT is not set
# CONFIG_ARC_DBG_TLB_PARANOIA is not set
CONFIG_ARC_DW2_UNWIND=y
# CONFIG_ARC_EMUL_UNALIGNED is not set
CONFIG_ARC_EMUL_UNALIGNED=y
# CONFIG_ARC_FPU_SAVE_RESTORE is not set
CONFIG_ARC_HAS_DCACHE=y
# CONFIG_ARC_HAS_DCCM is not set
@@ -162,7 +162,8 @@ CONFIG_SRCU=y
CONFIG_STACKTRACE=y
CONFIG_STMMAC_ETH=y
CONFIG_STMMAC_PLATFORM=y
# CONFIG_SUNXI_SRAM is not set
CONFIG_SYSCTL_ARCH_UNALIGN_ALLOW=y
CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN=y
CONFIG_TICK_CPU_ACCOUNTING=y
CONFIG_UNINLINE_SPIN_UNLOCK=y
CONFIG_USB_SUPPORT=y