ARM: tegra: add PRAM Kconfig option

Wrap CFG_PRAM with Kconfig option.

Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 4690dcb..67bd239 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -198,6 +198,20 @@
 source "arch/arm/mach-tegra/tegra210/Kconfig"
 source "arch/arm/mach-tegra/tegra186/Kconfig"
 
+config TEGRA_PRAM
+	select TEGRA_SUPPORT_NON_SECURE if TEGRA114 || TEGRA124
+	bool "Support reservation of the protected RAM"
+	help
+	  This option indicates the presence of a region of protected RAM.
+
+config TEGRA_PRAM_SIZE
+	hex "Size of pRAM region"
+	depends on TEGRA_PRAM
+	default 0x1000
+	help
+	  Size in kB of carevout which will be reserved as protected RAM starting
+	  from the top of the RAM.
+
 config TEGRA_SPI
 	def_bool y
 	depends on TEGRA20_SFLASH || TEGRA20_SLINK || TEGRA114_SPI
diff --git a/include/configs/tegra.h b/include/configs/tegra.h
index 77bc389..5db3129 100644
--- a/include/configs/tegra.h
+++ b/include/configs/tegra.h
@@ -29,6 +29,10 @@
 #include "tegra210-common.h"
 #endif
 
+#ifdef CONFIG_TEGRA_PRAM
+  #define CFG_PRAM CONFIG_TEGRA_PRAM_SIZE
+#endif
+
 #include "tegra-common-post.h"
 
 #endif /* __CONFIG_H */