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# arch/arm/plat-samsung/Kconfig
#
# Copyright 2009 Simtec Electronics
#
# Licensed under GPLv2
config PLAT_SAMSUNG
bool
depends on PLAT_S3C24XX || ARCH_S3C64XX || PLAT_S5P
select NO_IOPORT
select GENERIC_IRQ_CHIP
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.
# timer options
config S5P_HRT
bool
select SAMSUNG_DEV_PWM
help
Use the High Resolution timer support
# clock options
config SAMSUNG_CLKSRC
bool
help
Select the clock code for the clksrc implementation
used by newer systems such as the S3C64XX.
config S5P_CLOCK
def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS)
help
Support common clock part for ARCH_S5P and ARCH_EXYNOS SoCs
# options for IRQ support
config SAMSUNG_IRQ_VIC_TIMER
bool
help
Internal configuration to build the VIC timer interrupt code.
config S5P_IRQ
def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS)
help
Support common interrup part for ARCH_S5P and ARCH_EXYNOS SoCs
config S5P_EXT_INT
bool
help
Use the external interrupts (other than GPIO interrupts.)
Note: Do not choose this for S5P6440 and S5P6450.
config S5P_GPIO_INT
bool
help
Common code for the GPIO interrupts (other than external interrupts.)
# 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_S3C64XX
bool
help
Internal configuration to enable S3C64XX style GPIO configuration
functions.
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 128 if SAMSUNG_GPIO_EXTRA128
default 64 if SAMSUNG_GPIO_EXTRA64
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 SAMSUNG_GPIO_EXTRA64
bool
config SAMSUNG_GPIO_EXTRA128
bool
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_HSMMC3
bool
help
Compile in platform device definitions for HSMMC channel 3
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_I2C3
bool
help
Compile in platform device definition for I2C controller 3
config S3C_DEV_I2C4
bool
help
Compile in platform device definition for I2C controller 4
config S3C_DEV_I2C5
bool
help
Compile in platform device definition for I2C controller 5
config S3C_DEV_I2C6
bool
help
Compile in platform device definition for I2C controller 6
config S3C_DEV_I2C7
bool
help
Compile in platform device definition for I2C controller 7
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_S3C24XX
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 SAMSUNG_DEV_IDE
bool
help
Compile in platform device definitions for IDE
config S3C64XX_DEV_SPI0
bool
help
Compile in platform device definitions for S3C64XX's type
SPI controller 0
config S3C64XX_DEV_SPI1
bool
help
Compile in platform device definitions for S3C64XX's type
SPI controller 1
config S3C64XX_DEV_SPI2
bool
help
Compile in platform device definitions for S3C64XX's type
SPI controller 2
config SAMSUNG_DEV_TS
bool
help
Common in platform device definitions for touchscreen device
config SAMSUNG_DEV_KEYPAD
bool
help
Compile in platform device definitions for keypad
config SAMSUNG_DEV_PWM
bool
default y if ARCH_S3C24XX
help
Compile in platform device definition for PWM Timer
config SAMSUNG_DEV_BACKLIGHT
bool
depends on SAMSUNG_DEV_PWM
help
Compile in platform device definition LCD backlight with PWM Timer
config S3C24XX_PWM
bool "PWM device support"
select HAVE_PWM
help
Support for exporting the PWM timer blocks via the pwm device
system
# DMA
config S3C_DMA
bool
help
Internal configuration for S3C DMA core
config SAMSUNG_DMADEV
bool
select DMADEVICES
select PL330_DMA if (CPU_EXYNOS4210 || CPU_S5PV210 || CPU_S5PC100 || \
CPU_S5P6450 || CPU_S5P6440)
select ARM_AMBA
help
Use DMA device engine 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>
config SAMSUNG_WAKEMASK
bool
depends on PM
help
Compile support for wakeup-mask controls found on the S3C6400
and above. This code allows a set of interrupt to wakeup-mask
mappings. See <plat/wakeup-mask.h>
config S5P_PM
bool
help
Common code for power management support on S5P and newer SoCs
Note: Do not select this for S5P6440 and S5P6450.
config S5P_SLEEP
bool
help
Internal config node to apply common S5P sleep management code.
Can be selected by S5P and newer SoCs with similar sleep procedure.
comment "Power Domain"
config SAMSUNG_PD
bool "Samsung Power Domain"
depends on PM_RUNTIME
help
Say Y here if you want to control Power Domain by Runtime PM.
config DEBUG_S3C_UART
depends on PLAT_SAMSUNG
int
default "0" if DEBUG_S3C_UART0
default "1" if DEBUG_S3C_UART1
default "2" if DEBUG_S3C_UART2
endif
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