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ARCv2: don't assume core 0x54 has dual issue
authorVineet Gupta <vgupta@synopsys.com>
Thu, 21 Feb 2019 21:44:49 +0000 (13:44 -0800)
committerVineet Gupta <vgupta@synopsys.com>
Thu, 21 Feb 2019 22:53:36 +0000 (14:53 -0800)
commit16cea0a4276bf5f6743d1f08845f0b6986ff034d
tree4102321338daed2d80932fe7951bba20b78858b7tree | snapshot
parent6bead8498a1c39e4283fa9eeba22c1dba8477ad6commit | diff
ARCv2: don't assume core 0x54 has dual issue

The first release of core4 (0x54) was dual issue only (HS4x).
Newer releases allow hardware to be configured as single issue (HS3x)
or dual issue.

Prevent accessing a HS4x only aux register in HS3x, which otherwise
leads to illegal instruction exceptions

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
arch/arc/include/asm/arcregs.h diff | blob | history
arch/arc/kernel/setup.c diff | blob | history
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