microblaze: move CONFIG_SYS_TEXT_BASE to defconfig

This is how CONFIG options are defined by Kconfig.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Acked-by: Michal Simek <michal.simek@xilinx.com>
diff --git a/Kconfig b/Kconfig
index 9b07838..ee4e060 100644
--- a/Kconfig
+++ b/Kconfig
@@ -209,7 +209,7 @@
 
 config SYS_TEXT_BASE
 	depends on SPARC || ARC || X86 || ARCH_UNIPHIER || ARCH_ZYNQMP || \
-		(M68K && !TARGET_ASTRO_MCF5373L)
+		(M68K && !TARGET_ASTRO_MCF5373L) || MICROBLAZE
 	depends on !EFI_APP
 	hex "Text Base"
 	help
diff --git a/board/xilinx/microblaze-generic/config.mk b/board/xilinx/microblaze-generic/config.mk
index 36bdd96..95ef9c0 100644
--- a/board/xilinx/microblaze-generic/config.mk
+++ b/board/xilinx/microblaze-generic/config.mk
@@ -11,8 +11,6 @@
 #          the generated file from your Xilinx design flow.
 #
 
-CONFIG_SYS_TEXT_BASE = 0x29000000
-
 PLATFORM_CPPFLAGS += -mno-xl-soft-mul
 PLATFORM_CPPFLAGS += -mno-xl-soft-div
 PLATFORM_CPPFLAGS += -mxl-barrel-shift
diff --git a/configs/microblaze-generic_defconfig b/configs/microblaze-generic_defconfig
index 54aa3ef..ed336e6 100644
--- a/configs/microblaze-generic_defconfig
+++ b/configs/microblaze-generic_defconfig
@@ -1,6 +1,7 @@
 CONFIG_MICROBLAZE=y
 CONFIG_SPL_SYS_MALLOC_SIMPLE=y
 CONFIG_TARGET_MICROBLAZE_GENERIC=y
+CONFIG_SYS_TEXT_BASE=0x29000000
 CONFIG_DEFAULT_DEVICE_TREE="microblaze-generic"
 CONFIG_SPL=y
 CONFIG_SYS_PROMPT="U-Boot-mONStR> "