[U-Boot] [PATCH] env: Simplify Makefile using $(SPL_TPL_)

[York Sun]

Add Kconfig options SPL_ENV_* and TPL_ENV_* and simplify Makefile.
This allows SPL/TPL image has different environment setting from
full feature U-Boot.

Signed-off-by: York Sun <york.sun at nxp.com>
---
 env/Kconfig  | 115 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 env/Makefile |  40 ++++++---------------
 2 files changed, 126 insertions(+), 29 deletions(-)

diff --git a/env/Kconfig b/env/Kconfig
index f403906..154f84b 100644
--- a/env/Kconfig
+++ b/env/Kconfig
@@ -504,4 +504,119 @@ config ENV_VARS_UBOOT_RUNTIME_CONFIG
 	  run-time determined information about the hardware to the
 	  environment.  These will be named board_name, board_rev.
 
+if SPL_ENV_SUPPORT
+config SPL_ENV_IS_NOWHERE
+	bool "SPL Environment is not stored"
+	default y if ENV_IS_NOWHERE
+	help
+	  Similar to ENV_IS_NOWHERE, used for SPL environment.
+
+config SPL_ENV_IS_IN_MMC
+	bool "SPL Environment in an MMC device"
+	depends on !SPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_MMC
+	default y
+	help
+	  Similar to ENV_IS_IN_MMC, used for SPL environment.
+
+config SPL_ENV_IS_IN_FAT
+	bool "SPL Environment is in a FAT filesystem"
+	depends on !SPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_FAT
+	default y
+	help
+	  Similar to ENV_IS_IN_FAT, used for SPL environment.
+
+config SPL_ENV_IS_IN_EXT4
+	bool "SPL Environment is in a EXT4 filesystem"
+	depends on !SPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_EXT4
+	default y
+	help
+	  Similar to ENV_IS_IN_EXT4, used for SPL environment.
+
+config SPL_ENV_IS_IN_NAND
+	bool "SPL Environment in a NAND device"
+	depends on !SPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_NAND
+	default y
+	help
+	  Similar to ENV_IS_IN_NAND, used for SPL environment.
+
+config SPL_ENV_IS_IN_SPI_FLASH
+	bool "SPL Environment is in SPI flash"
+	depends on !SPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_SPI_FLASH
+	default y
+	help
+	  Similar to ENV_IS_IN_SPI_FLASH, used for SPL environment.
+
+config SPL_ENV_IS_IN_FLASH
+	bool "SPL Environment in flash memory"
+	depends on !SPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_FLASH
+	default y
+	help
+	  Similar to ENV_IS_IN_FLASH, used for SPL environment.
+
+endif
+
+if TPL_ENV_SUPPORT
+
+config TPL_ENV_IS_NOWHERE
+	bool "TPL Environment is not stored"
+	default y if ENV_IS_NOWHERE
+	help
+	  Similar to ENV_IS_NOWHERE, used for TPL environment.
+
+config TPL_ENV_IS_IN_MMC
+	bool "TPL Environment in an MMC device"
+	depends on !TPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_MMC
+	default y
+	help
+	  Similar to ENV_IS_IN_MMC, used for TPL environment.
+
+config TPL_ENV_IS_IN_FAT
+	bool "TPL Environment is in a FAT filesystem"
+	depends on !TPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_FAT
+	default y
+	help
+	  Similar to ENV_IS_IN_FAT, used for TPL environment.
+
+config TPL_ENV_IS_IN_EXT4
+	bool "TPL Environment is in a EXT4 filesystem"
+	depends on !TPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_EXT4
+	default y
+	help
+	  Similar to ENV_IS_IN_EXT4, used for TPL environment.
+
+config TPL_ENV_IS_IN_NAND
+	bool "TPL Environment in a NAND device"
+	depends on !TPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_NAND
+	default y
+	help
+	  Similar to ENV_IS_IN_NAND, used for TPL environment.
+
+config TPL_ENV_IS_IN_SPI_FLASH
+	bool "TPL Environment is in SPI flash"
+	depends on !TPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_SPI_FLASH
+	default y
+	help
+	  Similar to ENV_IS_IN_SPI_FLASH, used for TPL environment.
+
+config TPL_ENV_IS_IN_FLASH
+	bool "TPL Environment in flash memory"
+	depends on !TPL_ENV_IS_NOWHERE
+	depends on ENV_IS_IN_FLASH
+	default y
+	help
+	  Similar to ENV_IS_IN_FLASH, used for TPL environment.
+
+endif
+
 endmenu
diff --git a/env/Makefile b/env/Makefile
index fa635c8..90144d6 100644
--- a/env/Makefile
+++ b/env/Makefile
@@ -14,41 +14,23 @@ extra-$(CONFIG_ENV_IS_EMBEDDED) += embedded.o
 obj-$(CONFIG_ENV_IS_IN_EEPROM) += embedded.o
 extra-$(CONFIG_ENV_IS_IN_FLASH) += embedded.o
 obj-$(CONFIG_ENV_IS_IN_NVRAM) += embedded.o
-obj-$(CONFIG_ENV_IS_IN_FLASH) += flash.o
-obj-$(CONFIG_ENV_IS_IN_MMC) += mmc.o
-obj-$(CONFIG_ENV_IS_IN_FAT) += fat.o
-obj-$(CONFIG_ENV_IS_IN_EXT4) += ext4.o
-obj-$(CONFIG_ENV_IS_IN_NAND) += nand.o
 obj-$(CONFIG_ENV_IS_IN_NVRAM) += nvram.o
 obj-$(CONFIG_ENV_IS_IN_ONENAND) += onenand.o
 obj-$(CONFIG_ENV_IS_IN_SATA) += sata.o
-obj-$(CONFIG_ENV_IS_IN_SPI_FLASH) += sf.o
 obj-$(CONFIG_ENV_IS_IN_REMOTE) += remote.o
 obj-$(CONFIG_ENV_IS_IN_UBI) += ubi.o
-obj-$(CONFIG_ENV_IS_NOWHERE) += nowhere.o
-endif
-
-ifdef CONFIG_SPL_BUILD
-obj-$(CONFIG_ENV_IS_IN_FLASH) += flash.o
-# environment
-ifdef CONFIG_TPL_BUILD
-obj-$(CONFIG_TPL_ENV_SUPPORT) += attr.o
-obj-$(CONFIG_TPL_ENV_SUPPORT) += flags.o
-obj-$(CONFIG_TPL_ENV_SUPPORT) += callback.o
 else
-obj-$(CONFIG_SPL_ENV_SUPPORT) += attr.o
-obj-$(CONFIG_SPL_ENV_SUPPORT) += flags.o
-obj-$(CONFIG_SPL_ENV_SUPPORT) += callback.o
-endif
-ifneq ($(CONFIG_TPL_ENV_SUPPORT)$(CONFIG_SPL_ENV_SUPPORT),)
-obj-$(CONFIG_ENV_IS_NOWHERE) += nowhere.o
-obj-$(CONFIG_ENV_IS_IN_MMC) += mmc.o
-obj-$(CONFIG_ENV_IS_IN_FAT) += fat.o
-obj-$(CONFIG_ENV_IS_IN_EXT4) += ext4.o
-obj-$(CONFIG_ENV_IS_IN_NAND) += nand.o
-obj-$(CONFIG_ENV_IS_IN_SPI_FLASH) += sf.o
-obj-$(CONFIG_ENV_IS_IN_FLASH) += flash.o
-endif
+obj-$(CONFIG_$(SPL_TPL_)ENV_SUPPORT) += attr.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_SUPPORT) += flags.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_SUPPORT) += callback.o
 endif
 
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_NOWHERE) += nowhere.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_MMC) += mmc.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_FAT) += fat.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_EXT4) += ext4.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_NAND) += nand.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_SPI_FLASH) += sf.o
+obj-$(CONFIG_$(SPL_TPL_)ENV_IS_IN_FLASH) += flash.o
+
 CFLAGS_embedded.o := -Wa,--no-warn -DENV_CRC=$(shell tools/envcrc 2>/dev/null)
-- 
2.7.4