From a8b0f9b685072e1d3acd01741e7db6833b445b2a Mon Sep 17 00:00:00 2001
From: Masahiro Yamada <yamada.m@jp.panasonic.com>
Date: Tue, 24 Jun 2014 22:10:52 +0900
Subject: build: define CPU only when arch/${ARCH}/cpu/${CPU} exists
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The directory arch/${ARCH}/cpu/${CPU} does not exist
in avr32, blackfin, microblaze, nios2, openrisc, sandbox, x86.

These architectures have only one CPU type.
Defining CPU should not be required for such architectures.

This commit allows cpu field (= the 3rd field of boards.cfg)
to be kept blank.

Signed-off-by: Masahiro Yamada <yamada.m@jp.panasonic.com>
Cc: Andreas Bießmann <andreas.devel@googlemail.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Sonic Zhang <sonic.zhang@analog.com>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Thomas Chou <thomas@wytron.com.tw>
Cc: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
---
 config.mk | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

(limited to 'config.mk')

diff --git a/config.mk b/config.mk
index 05864aabb5..bd74732d48 100644
--- a/config.mk
+++ b/config.mk
@@ -24,10 +24,7 @@ OBJCOPYFLAGS :=
 # so calculate CPUDIR before including ARCH/SOC/CPU config.mk files.
 # Check if arch/$ARCH/cpu/$CPU exists, otherwise assume arch/$ARCH/cpu contains
 # CPU-specific code.
-CPUDIR=arch/$(ARCH)/cpu/$(CPU)
-ifneq ($(srctree)/$(CPUDIR),$(wildcard $(srctree)/$(CPUDIR)))
-CPUDIR=arch/$(ARCH)/cpu
-endif
+CPUDIR=arch/$(ARCH)/cpu$(if $(CPU),/$(CPU),)
 
 sinclude $(srctree)/arch/$(ARCH)/config.mk	# include architecture dependend rules
 sinclude $(srctree)/$(CPUDIR)/config.mk		# include  CPU	specific rules
-- 
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