ARM: SAMSUNG: Introduce SAMSUNG_ATAGS Kconfig entry

This patch adds a Kconfig entry that enables compilation of legacy
support code required for Samsung platforms that require ATAGS based
boot.

This allows to bypass compilation of this code when platforms without
ATAGS support are selected.

Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

1 files changed, 21 insertions, 5 deletions

diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index f8ed2de0a678..c0f0542e6dfc 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -60,6 +60,20 @@ config S3C_LOWLEVEL_UART_PORT
           this configuration should be between zero and two. The port
           must have been initialised by the boot-loader before use.
 
+config SAMSUNG_ATAGS
+        def_bool n
+        depends on !ARCH_MULTIPLATFORM
+        depends on ATAGS
+        help
+           This option enables ATAGS based boot support code for
+           Samsung platforms, including static platform devices, legacy
+           clock, timer and interrupt initialization, etc.
+
+           Platforms that support only DT based boot need not to select
+           this option.
+
+if SAMSUNG_ATAGS
+
 # timer options
 
 config SAMSUNG_HRT
@@ -367,11 +381,6 @@ config S5P_DEV_JPEG
         help
           Compile in platform device definitions for JPEG codec
 
-config S5P_DEV_MFC
-        bool
-        help
-          Compile in setup memory (init) code for MFC
-
 config S5P_DEV_ONENAND
         bool
         help
@@ -412,6 +421,8 @@ config S3C_DMA
         help
           Internal configuration for S3C DMA core
 
+endif
+
 config SAMSUNG_DMADEV
         bool
         select ARM_AMBA
@@ -421,6 +432,11 @@ config SAMSUNG_DMADEV
         help
           Use DMA device engine for PL330 DMAC.
 
+config S5P_DEV_MFC
+        bool
+        help
+          Compile in setup memory (init) code for MFC
+
 comment "Power management"
 
 config SAMSUNG_PM_DEBUG