Commit 11f078c2 authored Oct 30, 2014 by Alexey Brodkin Committed by Peter Korsgaard Nov 02, 2014

arc: add explicit selection of CPU templates ARC 750D and ARC770D



This separation allows to specify unique options and features for each
CPU.

For example ARC 770D has LLOCK/SCOND instructions built-in by default.
Also this new scheme simplifies selection of proper configuration for
users - preconfigured options now match templates for ARC CPUs.

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

Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Anton Kolesov <akolesov@synopsys.com>
Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

parent 5837f364

arch/Config.in.arc

+19 −2

Original line number	Diff line number	Diff line
		# Choise of atomic instructions presence
		choice
		prompt "Target CPU"
		depends on BR2_arc
		default BR2_arc770d
		help
		Specific CPU to use

		config BR2_arc750d
		bool "ARC 750D"

		config BR2_arc770d
		bool "ARC 770D"

		endchoice

		# Choice of atomic instructions presence
		config BR2_ARC_ATOMIC_EXT
		bool "Atomic extension (LLOCK/SCOND instructions)"
		default y if BR2_arc770d

		config BR2_ARCH_HAS_ATOMICS
		default y if BR2_ARC_ATOMIC_EXT
		@@ -18,4 +34,5 @@ config BR2_ENDIAN
		default "BIG" if BR2_arceb

		config BR2_GCC_TARGET_CPU
		default "arc700"
		default "arc700" if BR2_arc750d
		default "arc700" if BR2_arc770d