u-boot/board/ti/am335x/Kconfig
Masahiro Yamada 58d423b88e dm: select CONFIG_DM* options
As mentioned in the previous commit, adding default values in each
Kconfig causes problems because it does not co-exist with the
"depends on" syntax.  (Please note this is not a bug of Kconfig.)
We should not do so unless we have a special reason.  Actually,
for CONFIG_DM*, we have no good reason to do so.

Generally, CONFIG_DM is not a user-configurable option.  Once we
convert a driver into Driver Model, the board only works with Driver
Model, i.e. CONFIG_DM must be always enabled for that board.
So, using "select DM" is more suitable rather than allowing users to
modify it.  Another good thing is, Kconfig warns unmet dependencies
for "select" syntax, so we easily notice bugs.

Actually, CONFIG_DM and other related options have been added
without consistency: some into arch/*/Kconfig, some into
board/*/Kconfig, and some into configs/*_defconfig.

This commit prefers "select" and cleans up the following issues.

[1] Never use "CONFIG_DM=n" in defconfig files

It is really rare to add "CONFIG_FOO=n" to disable CONFIG options.
It is more common to use "# CONFIG_FOO is not set".  But here, we
do not even have to do it.
Less than half of OMAP3 boards have been converted to Driver Model.
Adding the default values to arch/arm/cpu/armv7/omap3/Kconfig is
weird.  Instead, add "select DM" only to appropriate boards, which
eventually eliminates "CONFIG_DM=n", etc.

[2] Delete redundant CONFIGs

Sandbox sets CONFIG_DM in arch/sandbox/Kconfig and defines it again
in configs/sandbox_defconfig.
Likewise, OMAP3 sets CONFIG_DM arch/arm/cpu/armv7/omap3/Kconfig and
defines it also in omap3_beagle_defconfig and devkit8000_defconfig.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
2015-04-18 11:11:30 -06:00

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if TARGET_AM335X_EVM
config SYS_BOARD
default "am335x"
config SYS_VENDOR
default "ti"
config SYS_SOC
default "am33xx"
config SYS_CONFIG_NAME
default "am335x_evm"
config CONS_INDEX
int "UART used for console"
range 1 6
default 1
help
The AM335x SoC has a total of 6 UARTs (UART0 to UART5 as referenced
in documentation, etc) available to it. Depending on your specific
board you may want something other than UART0 as for example the IDK
uses UART3 so enter 4 here.
config NOR
bool "Support for NOR flash"
help
The AM335x SoC supports having a NOR flash connected to the GPMC.
In practice this is seen as a NOR flash module connected to the
"memory cape" for the BeagleBone family.
config NOR_BOOT
bool "Support for booting from NOR flash"
depends on NOR
help
Enabling this will make a U-Boot binary that is capable of being
booted via NOR. In this case we will enable certain pinmux early
as the ROM only partially sets up pinmux. We also default to using
NOR for environment.
endif