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linux-next/arch/arm/mach-davinci/Kconfig
Arnd Bergmann 8e58041114 ARM: davinci: make I2C support optional
The davinci platform has tried to get support for the EEPROM right,
but failed to get a clean build so far. At the moment, we get
a warning whenever CONFIG_SYSFS is disabled, as that is needed by
EEPROM_AT24:

warning: (MACH_DAVINCI_EVM && MACH_SFFSDR && MACH_DAVINCI_DM6467_EVM && MACH_DAVINCI_DM365_EVM && MACH_DAVINCI_DA830_EVM && MACH_MITYOMAPL138 && MACH_MINI2440) selects EEPROM_AT24 which has unmet direct dependencies (I2C && SYSFS)

Kevin Hilman initially added the 'select' to ensure that EEPROM_AT24
is always enabled in machines that really want it for normal operation
(i.e. for reading the MAC address). This broke when I2C was disabled,
and Russell King followed up with another patch to select that as
well.

I now see that the SYSFS dependency is still missing, which leaves
us with three options:

a) add 'select SYSFS' in addition to the others
b) change AT24_EEPPROM to work without sysfs (should be possible)
c) remove all those selects again and get the files to build when
   I2C is disabled.

I would really hate to do a) because adding select statements that
hardwire user-selectable symbols is generally a bad idea. I first
tried b) but then ended up redoing the patch from scratch to approach
c), so we can also remove the other selects.

I checked that CONFIG_I2C is still enabled with davinci_all_defconfig,
so that does not have to change.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 45b146d746 ("ARM: Davinci: Fix I2C build errors")
Fixes: 22ca466847 ("davinci: kconfig: select at24 eeprom for selected boards")
Signed-off-by: Sekhar Nori <nsekhar@ti.com>
2016-02-17 19:20:05 +05:30

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if ARCH_DAVINCI
config AINTC
bool
config CP_INTC
bool
select IRQ_DOMAIN
config ARCH_DAVINCI_DMx
bool
menu "TI DaVinci Implementations"
comment "DaVinci Core Type"
config ARCH_DAVINCI_DM644x
bool "DaVinci 644x based system"
select AINTC
select ARCH_DAVINCI_DMx
config ARCH_DAVINCI_DM355
bool "DaVinci 355 based system"
select AINTC
select ARCH_DAVINCI_DMx
config ARCH_DAVINCI_DM646x
bool "DaVinci 646x based system"
select AINTC
select ARCH_DAVINCI_DMx
config ARCH_DAVINCI_DA830
bool "DA830/OMAP-L137/AM17x based system"
depends on !ARCH_DAVINCI_DMx || (AUTO_ZRELADDR && ARM_PATCH_PHYS_VIRT)
select ARCH_DAVINCI_DA8XX
# needed on silicon revs 1.0, 1.1:
select CPU_DCACHE_WRITETHROUGH if !CPU_DCACHE_DISABLE
select CP_INTC
config ARCH_DAVINCI_DA850
bool "DA850/OMAP-L138/AM18x based system"
depends on !ARCH_DAVINCI_DMx || (AUTO_ZRELADDR && ARM_PATCH_PHYS_VIRT)
select ARCH_DAVINCI_DA8XX
select CP_INTC
config ARCH_DAVINCI_DA8XX
bool
config ARCH_DAVINCI_DM365
bool "DaVinci 365 based system"
select AINTC
select ARCH_DAVINCI_DMx
comment "DaVinci Board Type"
config MACH_DA8XX_DT
bool "Support DA8XX platforms using device tree"
default y
depends on ARCH_DAVINCI_DA850
select PINCTRL
help
Say y here to include support for TI DaVinci DA850 based using
Flattened Device Tree. More information at Documentation/devicetree
config MACH_DAVINCI_EVM
bool "TI DM644x EVM"
default ARCH_DAVINCI_DM644x
depends on ARCH_DAVINCI_DM644x
help
Configure this option to specify the whether the board used
for development is a DM644x EVM
config MACH_SFFSDR
bool "Lyrtech SFFSDR"
depends on ARCH_DAVINCI_DM644x
help
Say Y here to select the Lyrtech Small Form Factor
Software Defined Radio (SFFSDR) board.
config MACH_NEUROS_OSD2
bool "Neuros OSD2 Open Television Set Top Box"
depends on ARCH_DAVINCI_DM644x
help
Configure this option to specify the whether the board used
for development is a Neuros OSD2 Open Set Top Box.
config MACH_DAVINCI_DM355_EVM
bool "TI DM355 EVM"
default ARCH_DAVINCI_DM355
depends on ARCH_DAVINCI_DM355
help
Configure this option to specify the whether the board used
for development is a DM355 EVM
config MACH_DM355_LEOPARD
bool "DM355 Leopard board"
depends on ARCH_DAVINCI_DM355
help
Configure this option to specify the whether the board used
for development is a DM355 Leopard board.
config MACH_DAVINCI_DM6467_EVM
bool "TI DM6467 EVM"
default ARCH_DAVINCI_DM646x
depends on ARCH_DAVINCI_DM646x
select MACH_DAVINCI_DM6467TEVM
help
Configure this option to specify the whether the board used
for development is a DM6467 EVM
config MACH_DAVINCI_DM6467TEVM
bool
config MACH_DAVINCI_DM365_EVM
bool "TI DM365 EVM"
default ARCH_DAVINCI_DM365
depends on ARCH_DAVINCI_DM365
help
Configure this option to specify whether the board used
for development is a DM365 EVM
config MACH_DAVINCI_DA830_EVM
bool "TI DA830/OMAP-L137/AM17x Reference Platform"
default ARCH_DAVINCI_DA830
depends on ARCH_DAVINCI_DA830
select GPIO_PCF857X if I2C
help
Say Y here to select the TI DA830/OMAP-L137/AM17x Evaluation Module.
choice
prompt "Select DA830/OMAP-L137/AM17x UI board peripheral"
depends on MACH_DAVINCI_DA830_EVM
help
The presence of UI card on the DA830/OMAP-L137/AM17x EVM is
detected automatically based on successful probe of the I2C
based GPIO expander on that board. This option selected in this
menu has an effect only in case of a successful UI card detection.
config DA830_UI_LCD
bool "LCD"
help
Say Y here to use the LCD as a framebuffer or simple character
display.
config DA830_UI_NAND
bool "NAND flash"
help
Say Y here to use the NAND flash. Do not forget to setup
the switch correctly.
endchoice
config MACH_DAVINCI_DA850_EVM
bool "TI DA850/OMAP-L138/AM18x Reference Platform"
default ARCH_DAVINCI_DA850
depends on ARCH_DAVINCI_DA850
help
Say Y here to select the TI DA850/OMAP-L138/AM18x Evaluation Module.
choice
prompt "Select peripherals connected to expander on UI board"
depends on MACH_DAVINCI_DA850_EVM
help
The presence of User Interface (UI) card on the DA850/OMAP-L138/AM18x
EVM is detected automatically based on successful probe of the I2C
based GPIO expander on that card. This option selected in this
menu has an effect only in case of a successful UI card detection.
config DA850_UI_NONE
bool "No peripheral is enabled"
help
Say Y if you do not want to enable any of the peripherals connected
to TCA6416 expander on DA850/OMAP-L138/AM18x EVM UI card
config DA850_UI_RMII
bool "RMII Ethernet PHY"
help
Say Y if you want to use the RMII PHY on the DA850/OMAP-L138/AM18x
EVM. This PHY is found on the UI daughter card that is supplied with
the EVM.
NOTE: Please take care while choosing this option, MII PHY will
not be functional if RMII mode is selected.
config DA850_UI_SD_VIDEO_PORT
bool "Video Port Interface"
help
Say Y if you want to use Video Port Interface (VPIF) on the
DA850/OMAP-L138 EVM. The Video decoders/encoders are found on the
UI daughter card that is supplied with the EVM.
endchoice
config MACH_MITYOMAPL138
bool "Critical Link MityDSP-L138/MityARM-1808 SoM"
depends on ARCH_DAVINCI_DA850
help
Say Y here to select the Critical Link MityDSP-L138/MityARM-1808
System on Module. Information on this SoM may be found at
http://www.mitydsp.com
config MACH_OMAPL138_HAWKBOARD
bool "TI AM1808 / OMAPL-138 Hawkboard platform"
depends on ARCH_DAVINCI_DA850
help
Say Y here to select the TI AM1808 / OMAPL-138 Hawkboard platform .
Information of this board may be found at
http://www.hawkboard.org/
config DAVINCI_MUX
bool "DAVINCI multiplexing support"
depends on ARCH_DAVINCI
default y
help
Pin multiplexing support for DAVINCI boards. If your bootloader
sets the multiplexing correctly, say N. Otherwise, or if unsure,
say Y.
config DAVINCI_MUX_DEBUG
bool "Multiplexing debug output"
depends on DAVINCI_MUX
help
Makes the multiplexing functions print out a lot of debug info.
This is useful if you want to find out the correct values of the
multiplexing registers.
config DAVINCI_MUX_WARNINGS
bool "Warn about pins the bootloader didn't set up"
depends on DAVINCI_MUX
help
Choose Y here to warn whenever driver initialization logic needs
to change the pin multiplexing setup. When there are no warnings
printed, it's safe to deselect DAVINCI_MUX for your product.
config DAVINCI_RESET_CLOCKS
bool "Reset unused clocks during boot"
depends on ARCH_DAVINCI
help
Say Y if you want to reset unused clocks during boot.
This option saves power, but assumes all drivers are
using the clock framework. Broken drivers that do not
yet use clock framework may not work with this option.
If you are booting from another operating system, you
probably do not want this option enabled until your
device drivers work properly.
endmenu
endif