boot: Create a common BOOT_DEFAULTS for distro and bootstd

These two features use a lot of common options. Move them into a common
CONFIG to reduce duplication.

Use 'select' for most options since these are things that boards aren't
supposed to override. For now it is not possible to disable
BOOT_DEFAULTS but we may take another look later.

Note that five options use 'imply' to match existing behaviour.

Signed-off-by: Simon Glass <sjg@chromium.org>
[trini: Rework a bit so we don't grow so many platforms unintentionally]
Signed-off-by: Tom Rini <trini@konsulko.com>

diff --git a/boot/Kconfig b/boot/Kconfig
index 8fa3181..ad03569 100644 (file)
--- a/boot/Kconfig
+++ b/boot/Kconfig
@@ -350,6 +350,32 @@ config PXE_UTILS
        help
          Utilities for parsing PXE file formats.
 
+config BOOT_DEFAULTS
+       bool  # Common defaults for standard boot and distroboot
+       imply USE_BOOTCOMMAND
+       select CMD_ENV_EXISTS
+       select CMD_EXT2
+       select CMD_EXT4
+       select CMD_FAT
+       select CMD_FS_GENERIC
+       select CMD_PART if PARTITIONS
+       select CMD_DHCP if CMD_NET
+       select CMD_PING if CMD_NET
+       select CMD_PXE if CMD_NET
+       select SUPPORT_RAW_INITRD
+       select ENV_VARS_UBOOT_CONFIG
+       select CMD_BOOTI if ARM64
+       select CMD_BOOTZ if ARM && !ARM64
+       imply CMD_MII if NET
+       imply USB_STORAGE
+       imply EFI_PARTITION
+       imply ISO_PARTITION
+       help
+         These are not required but are commonly needed to support a good
+         selection of booting methods. Enable this to improve the capability
+         of U-Boot to boot various images. Currently much functionality is
+         tied to enabling the command that exercises it.
+
 config BOOTSTD
        bool "Standard boot support"
        default y
@@ -410,24 +436,7 @@ config BOOTSTD_DEFAULTS
        bool "Select some common defaults for standard boot"
        depends on BOOTSTD
        imply USE_BOOTCOMMAND
-       # Bring in some defaults which are generally needed. Boards can drop
-       # these as needed to save code space. Bootstd does not generally require
-       # the commands themselves to be enabled, but this is how some of the
-       # functionality is controlled at present
-       imply CMD_EXT2
-       imply CMD_EXT4
-       imply CMD_FAT
-       imply CMD_FS_GENERIC
-       imply CMD_PART
-       imply CMD_DHCP if NET
-       imply CMD_MII if NET
-       imply CMD_PING if NET
-       imply CMD_PXE if NET
-       imply USB_STORAGE
-       imply SUPPORT_RAW_INITRD
-       imply ENV_VARS_UBOOT_CONFIG
-       imply EFI_PARTITION
-       imply ISO_PARTITION
+       select BOOT_DEFAULTS
        help
          These are not required but are commonly needed to support a good
          selection of booting methods. Enable this to improve the capability
@@ -823,27 +832,12 @@ endmenu           # Boot images
 
 config DISTRO_DEFAULTS
        bool "Select defaults suitable for booting general purpose Linux distributions"
+       select BOOT_DEFAULTS
        select AUTO_COMPLETE
        select CMDLINE_EDITING
-       select CMD_BOOTI if ARM64
-       select CMD_BOOTZ if ARM && !ARM64
-       select CMD_DHCP if CMD_NET
-       select CMD_ENV_EXISTS
-       select CMD_EXT2
-       select CMD_EXT4
-       select CMD_FAT
-       select CMD_FS_GENERIC
-       select CMD_PART if PARTITIONS
-       select CMD_PING if CMD_NET
-       select CMD_PXE if NET
        select CMD_SYSBOOT
-       select ENV_VARS_UBOOT_CONFIG
        select HUSH_PARSER
-       select SUPPORT_RAW_INITRD
        select SYS_LONGHELP
-       imply CMD_MII if NET
-       imply USB_STORAGE
-       imply USE_BOOTCOMMAND
        help
          Select this to enable various options and commands which are suitable
          for building u-boot for booting general purpose Linux distributions.