From mboxrd@z Thu Jan  1 00:00:00 1970
From: Thomas Monjalon <thomas.monjalon@6wind.com>
Subject: Re: [PATCH] mk: Introduce NXP dpaa2 architecture based
	on armv8-a
Date: Mon, 09 May 2016 10:39:47 +0200
Message-ID: <21220095.qH3WOBJJYD@xps13>
References: <1462801702-30918-1-git-send-email-hemant.agrawal@nxp.com>
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To: Hemant Agrawal <hemant.agrawal@nxp.com>
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2016-05-09 19:18, Hemant Agrawal:
> This patch introduces dpaa2 machine target to address difference
> in cpu parameter, number of core to 8 and no numa support
> w.r.t default armv8-a machine
> 
> Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com>
[...]
> --- /dev/null
> +++ b/mk/machine/dpaa2/rte.vars.mk
> +# ARCH =
> +# CROSS =
> +# MACHINE_CFLAGS =
> +# MACHINE_LDFLAGS =
> +# MACHINE_ASFLAGS =
> +# CPU_CFLAGS =
> +# CPU_LDFLAGS =
> +# CPU_ASFLAGS =
> +MACHINE_CFLAGS += -march=armv8-a
> +
> +ifdef CONFIG_RTE_ARCH_ARM_TUNE
> +MACHINE_CFLAGS += -mcpu=$(CONFIG_RTE_ARCH_ARM_TUNE)
> +endif

There is nothing specific in this file.

> --- a/mk/rte.module.mk
> +++ b/mk/rte.module.mk
> +#### Linaro toolchain usages arm64 instread of aarch64 in kernel
> +ifeq ($(ARCH), aarch64)
> +ARCH = arm64
> +endif

Could you provide more explanations please?
aarch64 shouldn't be used I think.