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# arch/arm/plat-samsung/Kconfig
#
# Copyright 2009 Simtec Electronics
#
# Licensed under GPLv2
config PLAT_SAMSUNG
bool
depends on ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX
select NO_IOPORT
default y
help
Base platform code for all Samsung SoC based systems
if PLAT_SAMSUNG
# boot configurations
comment "Boot options"
config S3C_BOOT_WATCHDOG
bool "S3C Initialisation watchdog"
depends on S3C2410_WATCHDOG
help
Say y to enable the watchdog during the kernel decompression
stage. If the kernel fails to uncompress, then the watchdog
will trigger a reset and the system should restart.
config S3C_BOOT_ERROR_RESET
bool "S3C Reboot on decompression error"
help
Say y here to use the watchdog to reset the system if the
kernel decompressor detects an error during decompression.
config S3C_BOOT_UART_FORCE_FIFO
bool "Force UART FIFO on during boot process"
default y
help
Say Y here to force the UART FIFOs on during the kernel
uncompressor
config S3C_LOWLEVEL_UART_PORT
int "S3C UART to use for low-level messages"
default 0
help
Choice of which UART port to use for the low-level messages,
such as the `Uncompressing...` at start time. The value of
this configuration should be between zero and two. The port
must have been initialised by the boot-loader before use.
# clock options
config SAMSUNG_CLKSRC
bool
help
Select the clock code for the clksrc implementation
used by newer systems such as the S3C64XX.
# options for IRQ support
config SAMSUNG_IRQ_VIC_TIMER
bool
help
Internal configuration to build the VIC timer interrupt code.
config SAMSUNG_IRQ_UART
bool
help
Internal configuration to build the IRQ UART demux code.
# options for gpio configuration support
config SAMSUNG_GPIOLIB_4BIT
bool
help
GPIOlib file contains the 4 bit modification functions for gpio
configuration. GPIOlib shall be compiled only for S3C64XX and S5P
series of processors.
config S3C_GPIO_CFG_S3C24XX
bool
help
Internal configuration to enable S3C24XX style GPIO configuration
functions.
config S3C_GPIO_CFG_S3C64XX
bool
help
Internal configuration to enable S3C64XX style GPIO configuration
functions.
config S3C_GPIO_PULL_UPDOWN
bool
help
Internal configuration to enable the correct GPIO pull helper
config S3C_GPIO_PULL_DOWN
bool
help
Internal configuration to enable the correct GPIO pull helper
config S3C_GPIO_PULL_UP
bool
help
Internal configuration to enable the correct GPIO pull helper
config S5P_GPIO_DRVSTR
bool
help
Internal configuration to get and set correct GPIO driver strength
helper
config SAMSUNG_GPIO_EXTRA
int "Number of additional GPIO pins"
default 0
help
Use additional GPIO space in addition to the GPIO's the SOC
provides. This allows expanding the GPIO space for use with
GPIO expanders.
config S3C_GPIO_SPACE
int "Space between gpio banks"
default 0
help
Add a number of spare GPIO entries between each bank for debugging
purposes. This allows any problems where an counter overflows from
one bank to another to be caught, at the expense of using a little
more memory.
config S3C_GPIO_TRACK
bool
help
Internal configuration option to enable the s3c specific gpio
chip tracking if the platform requires it.
# ADC driver
config S3C_ADC
bool "ADC common driver support"
help
Core support for the ADC block found in the Samsung SoC systems
for drivers such as the touchscreen and hwmon to use to share
this resource.
# device definitions to compile in
config S3C_DEV_HSMMC
bool
help
Compile in platform device definitions for HSMMC code
config S3C_DEV_HSMMC1
bool
help
Compile in platform device definitions for HSMMC channel 1
config S3C_DEV_HSMMC2
bool
help
Compile in platform device definitions for HSMMC channel 2
config S3C_DEV_HWMON
bool
help
Compile in platform device definitions for HWMON
config S3C_DEV_I2C1
bool
help
Compile in platform device definitions for I2C channel 1
config S3C_DEV_I2C2
bool
help
Compile in platform device definitions for I2C channel 2
config S3C_DEV_FB
bool
help
Compile in platform device definition for framebuffer
config S3C_DEV_USB_HOST
bool
help
Compile in platform device definition for USB host.
config S3C_DEV_USB_HSOTG
bool
help
Compile in platform device definition for USB high-speed OtG
config S3C_DEV_WDT
bool
default y if ARCH_S3C2410
help
Complie in platform device definition for Watchdog Timer
config S3C_DEV_NAND
bool
help
Compile in platform device definition for NAND controller
config S3C_DEV_ONENAND
bool
help
Compile in platform device definition for OneNAND controller
config S3C_DEV_RTC
bool
help
Complie in platform device definition for RTC
config SAMSUNG_DEV_ADC
bool
help
Compile in platform device definition for ADC controller
config S3C64XX_DEV_SPI
bool
help
Compile in platform device definitions for S3C64XX's type
SPI controllers.
config SAMSUNG_DEV_TS
bool
help
Common in platform device definitions for touchscreen device
# DMA
config S3C_DMA
bool
help
Internal configuration for S3C DMA core
config S3C_PL330_DMA
bool
select PL330
help
S3C DMA API Driver for PL330 DMAC.
comment "Power management"
config SAMSUNG_PM_DEBUG
bool "S3C2410 PM Suspend debug"
depends on PM
help
Say Y here if you want verbose debugging from the PM Suspend and
Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
for more information.
config S3C_PM_DEBUG_LED_SMDK
bool "SMDK LED suspend/resume debugging"
depends on PM && (MACH_SMDK6410)
help
Say Y here to enable the use of the SMDK LEDs on the baseboard
for debugging of the state of the suspend and resume process.
Note, this currently only works for S3C64XX based SMDK boards.
config SAMSUNG_PM_CHECK
bool "S3C2410 PM Suspend Memory CRC"
depends on PM && CRC32
help
Enable the PM code's memory area checksum over sleep. This option
will generate CRCs of all blocks of memory, and store them before
going to sleep. The blocks are then checked on resume for any
errors.
Note, this can take several seconds depending on memory size
and CPU speed.
See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
config SAMSUNG_PM_CHECK_CHUNKSIZE
int "S3C2410 PM Suspend CRC Chunksize (KiB)"
depends on PM && SAMSUNG_PM_CHECK
default 64
help
Set the chunksize in Kilobytes of the CRC for checking memory
corruption over suspend and resume. A smaller value will mean that
the CRC data block will take more memory, but wil identify any
faults with better precision.
See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
endif
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