path: root/arch/arm/plat-samsung/Kconfig

# arch/arm/plat-samsung/Kconfig
#
# Copyright 2009 Simtec Electronics
#
# Licensed under GPLv2

config PLAT_SAMSUNG
	bool
	depends on ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX || ARCH_S5PC1XX
	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 S5P_GPIO_CFG_S5PC1XX
	bool
	help
	  Internal configuration to enable S5PC1XX 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 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_I2C1
	bool
	help
	  Compile in platform device definitions for I2C channel 1

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_NAND
	bool
	help
	  Compile in platform device definition for NAND controller

config S3C64XX_DEV_SPI
	bool
	help
	  Compile in platform device definitions for S3C64XX's type
	  SPI controllers.

# DMA

config S3C_DMA
	bool
	help
	  Internal configuration for S3C DMA core

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