[U-Boot] [PATCH] Kconfig: Add a new DISTRO_DEFAULTS Kconfig option

[Hans de Goede]

DISTRO_DEFAULTS is intended to mirror / replace
include/config_distro_defaults.h.

The intend is for boards which include this file to select this from
their Kconfig files and when moving setting to Kconfig which are #define-ed
in config_distro_defaults.h to select this from DISTRO_DEFAULTS so that
boards which have selected DISTRO_DEFAULTS will keep the same configuration
as before without needing any defconfig file changes.

The initial list of selected things matches all settings recently removed
from config_distro_defaults.h because they have been converted to Kconfig,
with the exception of CMD_ELF and CMD_NET, which have a default of y, if
the default of these ever changes they should be selected by DISTRO_DEFAULTS
too.

For testing and example purposes this commit also converts ARCH_SUNXI
to use DISTRO_DEFAULT instead of selecting everything it needs itself.

Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
 Kconfig          | 16 ++++++++++++++++
 arch/arm/Kconfig | 10 +---------
 common/Kconfig   |  1 +
 3 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/Kconfig b/Kconfig
index 4b46216..cc2902c 100644
--- a/Kconfig
+++ b/Kconfig
@@ -53,6 +53,22 @@ config CC_OPTIMIZE_FOR_SIZE
 
 	  This option is enabled by default for U-Boot.
 
+config DISTRO_DEFAULTS
+	bool "Select defaults suitable for booting general purpose Linux distributions"
+	default n
+	select CMD_BOOTZ
+	select CMD_DHCP
+	select CMD_EXT2
+	select CMD_EXT4
+	select CMD_FAT
+	select CMD_FS_GENERIC
+	select CMD_MII
+	select CMD_PING
+	select HUSH_PARSER
+	help
+	  Select this to enable various options and commands which are suitable
+	  for building u-boot for booting general purpose Linux distributions.
+
 config SYS_MALLOC_F
 	bool "Enable malloc() pool before relocation"
 	default y if DM
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 4aeb4d2..4f6a3b3 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -584,24 +584,16 @@ config TARGET_CM_T43
 
 config ARCH_SUNXI
 	bool "Support sunxi (Allwinner) SoCs"
-	select CMD_BOOTZ
-	select CMD_DHCP
-	select CMD_EXT2
-	select CMD_EXT4
-	select CMD_FAT
-	select CMD_FS_GENERIC
 	select CMD_GPIO
-	select CMD_MII
 	select CMD_MMC if MMC
-	select CMD_PING
 	select CMD_USB
+	select DISTRO_DEFAULTS
 	select DM
 	select DM_ETH
 	select DM_GPIO
 	select DM_KEYBOARD
 	select DM_SERIAL
 	select DM_USB
-	select HUSH_PARSER
 	select OF_BOARD_SETUP
 	select OF_CONTROL
 	select OF_SEPARATE
diff --git a/common/Kconfig b/common/Kconfig
index 4d17b10..f86c5a2 100644
--- a/common/Kconfig
+++ b/common/Kconfig
@@ -99,6 +99,7 @@ endmenu
 
 config BOOTDELAY
 	int "delay in seconds before automatically booting"
+	default 2 if DISTRO_DEFAULTS
 	default 0
 	help
 	  Delay before automatically running bootcmd;
-- 
2.7.4