arm: qemu: Add a Kconfig in the board directory

This adds a Kconfig file in the board directory, so that some
board-specific options can be specified there.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

arch/arm/Kconfig

@@ -1495,6 +1495,7 @@ source "board/broadcom/bcmns2/Kconfig"
 source "board/cavium/thunderx/Kconfig"
 source "board/cirrus/edb93xx/Kconfig"
 source "board/eets/pdu001/Kconfig"
+source "board/emulation/qemu-arm/Kconfig"
 source "board/freescale/ls2080a/Kconfig"
 source "board/freescale/ls2080aqds/Kconfig"
 source "board/freescale/ls2080ardb/Kconfig"

board/emulation/qemu-arm/Kconfig

@@ -0,0 +1,9 @@
+if TARGET_QEMU_ARM_32BIT || TARGET_QEMU_ARM_64BIT
+
+config SYS_TEXT_BASE
+	default 0x00000000
+
+config BOARD_SPECIFIC_OPTIONS # dummy
+	def_bool y
+
+endif

configs/qemu_arm64_defconfig

@@ -1,7 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARM_SMCCC=y
 CONFIG_ARCH_QEMU=y
-CONFIG_SYS_TEXT_BASE=0x00000000
 CONFIG_TARGET_QEMU_ARM_64BIT=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y

configs/qemu_arm_defconfig

@@ -1,7 +1,6 @@
 CONFIG_ARM=y
 CONFIG_ARM_SMCCC=y
 CONFIG_ARCH_QEMU=y
-CONFIG_SYS_TEXT_BASE=0x00000000
 CONFIG_TARGET_QEMU_ARM_32BIT=y
 CONFIG_AHCI=y
 CONFIG_DISTRO_DEFAULTS=y