arch/arm/plat-samsung/Kconfig

   1 # arch/arm/plat-samsung/Kconfig
   2 #
   3 # Copyright 2009 Simtec Electronics
   4 #
   5 # Licensed under GPLv2
   6
   7 config PLAT_SAMSUNG
   8         bool
   9         depends on PLAT_S3C24XX || ARCH_S3C64XX || PLAT_S5P
  10         select NO_IOPORT
  11         select GENERIC_IRQ_CHIP
  12         default y
  13         help
  14           Base platform code for all Samsung SoC based systems
  15
  16 if PLAT_SAMSUNG
  17
  18 # boot configurations
  19
  20 comment "Boot options"
  21
  22 config S3C_BOOT_WATCHDOG
  23         bool "S3C Initialisation watchdog"
  24         depends on S3C2410_WATCHDOG
  25         help
  26           Say y to enable the watchdog during the kernel decompression
  27           stage. If the kernel fails to uncompress, then the watchdog
  28           will trigger a reset and the system should restart.
  29
  30 config S3C_BOOT_ERROR_RESET
  31         bool "S3C Reboot on decompression error"
  32         help
  33           Say y here to use the watchdog to reset the system if the
  34           kernel decompressor detects an error during decompression.
  35
  36 config S3C_BOOT_UART_FORCE_FIFO
  37        bool "Force UART FIFO on during boot process"
  38        default y
  39        help
  40          Say Y here to force the UART FIFOs on during the kernel
  41          uncompressor
  42
  43
  44 config S3C_LOWLEVEL_UART_PORT
  45         int "S3C UART to use for low-level messages"
  46         default 0
  47         help
  48           Choice of which UART port to use for the low-level messages,
  49           such as the `Uncompressing...` at start time. The value of
  50           this configuration should be between zero and two. The port
  51           must have been initialised by the boot-loader before use.
  52
  53 # clock options
  54
  55 config SAMSUNG_CLKSRC
  56         bool
  57         help
  58           Select the clock code for the clksrc implementation
  59           used by newer systems such as the S3C64XX.
  60
  61 # options for IRQ support
  62
  63 config SAMSUNG_IRQ_VIC_TIMER
  64        bool
  65        help
  66          Internal configuration to build the VIC timer interrupt code.
  67
  68 # options for gpio configuration support
  69
  70 config SAMSUNG_GPIOLIB_4BIT
  71         bool
  72         help
  73           GPIOlib file contains the 4 bit modification functions for gpio
  74           configuration. GPIOlib shall be compiled only for S3C64XX and S5P
  75           series of processors.
  76
  77 config S3C_GPIO_CFG_S3C64XX
  78         bool
  79         help
  80           Internal configuration to enable S3C64XX style GPIO configuration
  81           functions.
  82
  83 config S5P_GPIO_DRVSTR
  84         bool
  85         help
  86           Internal configuration to get and set correct GPIO driver strength
  87           helper
  88
  89 config SAMSUNG_GPIO_EXTRA
  90         int "Number of additional GPIO pins"
  91         default 0
  92         help
  93           Use additional GPIO space in addition to the GPIO's the SOC
  94           provides. This allows expanding the GPIO space for use with
  95           GPIO expanders.
  96
  97 config S3C_GPIO_SPACE
  98         int "Space between gpio banks"
  99         default 0
 100         help
 101           Add a number of spare GPIO entries between each bank for debugging
 102           purposes. This allows any problems where an counter overflows from
 103           one bank to another to be caught, at the expense of using a little
 104           more memory.
 105
 106 config S3C_GPIO_TRACK
 107         bool
 108         help
 109           Internal configuration option to enable the s3c specific gpio
 110           chip tracking if the platform requires it.
 111
 112 # ADC driver
 113
 114 config S3C_ADC
 115         bool "ADC common driver support"
 116         help
 117           Core support for the ADC block found in the Samsung SoC systems
 118           for drivers such as the touchscreen and hwmon to use to share
 119           this resource.
 120
 121 # device definitions to compile in
 122
 123 config S3C_DEV_HSMMC
 124         bool
 125         help
 126           Compile in platform device definitions for HSMMC code
 127
 128 config S3C_DEV_HSMMC1
 129         bool
 130         help
 131           Compile in platform device definitions for HSMMC channel 1
 132
 133 config S3C_DEV_HSMMC2
 134         bool
 135         help
 136           Compile in platform device definitions for HSMMC channel 2
 137
 138 config S3C_DEV_HSMMC3
 139         bool
 140         help
 141           Compile in platform device definitions for HSMMC channel 3
 142
 143 config S3C_DEV_HWMON
 144         bool
 145         help
 146             Compile in platform device definitions for HWMON
 147
 148 config S3C_DEV_I2C1
 149         bool
 150         help
 151           Compile in platform device definitions for I2C channel 1
 152
 153 config S3C_DEV_I2C2
 154         bool
 155         help
 156           Compile in platform device definitions for I2C channel 2
 157
 158 config S3C_DEV_I2C3
 159         bool
 160         help
 161           Compile in platform device definition for I2C controller 3
 162
 163 config S3C_DEV_I2C4
 164         bool
 165         help
 166           Compile in platform device definition for I2C controller 4
 167
 168 config S3C_DEV_I2C5
 169         bool
 170         help
 171           Compile in platform device definition for I2C controller 5
 172
 173 config S3C_DEV_I2C6
 174         bool
 175         help
 176           Compile in platform device definition for I2C controller 6
 177
 178 config S3C_DEV_I2C7
 179         bool
 180         help
 181           Compile in platform device definition for I2C controller 7
 182
 183 config S3C_DEV_FB
 184         bool
 185         help
 186           Compile in platform device definition for framebuffer
 187
 188 config S3C_DEV_USB_HOST
 189         bool
 190         help
 191           Compile in platform device definition for USB host.
 192
 193 config S3C_DEV_USB_HSOTG
 194         bool
 195         help
 196           Compile in platform device definition for USB high-speed OtG
 197
 198 config S3C_DEV_WDT
 199         bool
 200         default y if ARCH_S3C2410
 201         help
 202           Complie in platform device definition for Watchdog Timer
 203
 204 config S3C_DEV_NAND
 205         bool
 206         help
 207           Compile in platform device definition for NAND controller
 208
 209 config S3C_DEV_ONENAND
 210         bool
 211         help
 212           Compile in platform device definition for OneNAND controller
 213
 214 config S3C_DEV_RTC
 215         bool
 216         help
 217           Complie in platform device definition for RTC
 218
 219 config SAMSUNG_DEV_ADC
 220         bool
 221         help
 222           Compile in platform device definition for ADC controller
 223
 224 config SAMSUNG_DEV_IDE
 225         bool
 226         help
 227           Compile in platform device definitions for IDE
 228
 229 config S3C64XX_DEV_SPI
 230         bool
 231         help
 232           Compile in platform device definitions for S3C64XX's type
 233           SPI controllers.
 234
 235 config SAMSUNG_DEV_TS
 236         bool
 237         help
 238             Common in platform device definitions for touchscreen device
 239
 240 config SAMSUNG_DEV_KEYPAD
 241         bool
 242         help
 243           Compile in platform device definitions for keypad
 244
 245 config SAMSUNG_DEV_PWM
 246         bool
 247         default y if ARCH_S3C2410
 248         help
 249           Compile in platform device definition for PWM Timer
 250
 251 config SAMSUNG_DEV_BACKLIGHT
 252         bool
 253         depends on SAMSUNG_DEV_PWM
 254         help
 255           Compile in platform device definition LCD backlight with PWM Timer
 256
 257 config S3C24XX_PWM
 258         bool "PWM device support"
 259         select HAVE_PWM
 260         help
 261           Support for exporting the PWM timer blocks via the pwm device
 262           system
 263
 264 # DMA
 265
 266 config S3C_DMA
 267         bool
 268         help
 269           Internal configuration for S3C DMA core
 270
 271 config SAMSUNG_DMADEV
 272         bool
 273         select DMADEVICES
 274         select PL330_DMA if (CPU_EXYNOS4210 || CPU_S5PV210 || CPU_S5PC100 || \
 275                                         CPU_S5P6450 || CPU_S5P6440)
 276         select ARM_AMBA
 277         help
 278           Use DMA device engine for PL330 DMAC.
 279
 280 comment "Power management"
 281
 282 config SAMSUNG_PM_DEBUG
 283         bool "S3C2410 PM Suspend debug"
 284         depends on PM
 285         help
 286           Say Y here if you want verbose debugging from the PM Suspend and
 287           Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 288           for more information.
 289
 290 config S3C_PM_DEBUG_LED_SMDK
 291        bool "SMDK LED suspend/resume debugging"
 292        depends on PM && (MACH_SMDK6410)
 293        help
 294          Say Y here to enable the use of the SMDK LEDs on the baseboard
 295          for debugging of the state of the suspend and resume process.
 296
 297          Note, this currently only works for S3C64XX based SMDK boards.
 298
 299 config SAMSUNG_PM_CHECK
 300         bool "S3C2410 PM Suspend Memory CRC"
 301         depends on PM && CRC32
 302         help
 303           Enable the PM code's memory area checksum over sleep. This option
 304           will generate CRCs of all blocks of memory, and store them before
 305           going to sleep. The blocks are then checked on resume for any
 306           errors.
 307
 308           Note, this can take several seconds depending on memory size
 309           and CPU speed.
 310
 311           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 312
 313 config SAMSUNG_PM_CHECK_CHUNKSIZE
 314         int "S3C2410 PM Suspend CRC Chunksize (KiB)"
 315         depends on PM && SAMSUNG_PM_CHECK
 316         default 64
 317         help
 318           Set the chunksize in Kilobytes of the CRC for checking memory
 319           corruption over suspend and resume. A smaller value will mean that
 320           the CRC data block will take more memory, but wil identify any
 321           faults with better precision.
 322
 323           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 324
 325 config SAMSUNG_WAKEMASK
 326         bool
 327         depends on PM
 328         help
 329           Compile support for wakeup-mask controls found on the S3C6400
 330           and above. This code allows a set of interrupt to wakeup-mask
 331           mappings. See <plat/wakeup-mask.h>
 332
 333 comment "Power Domain"
 334
 335 config SAMSUNG_PD
 336         bool "Samsung Power Domain"
 337         depends on PM_RUNTIME
 338         help
 339           Say Y here if you want to control Power Domain by Runtime PM.
 340
 341 config DEBUG_S3C_UART
 342         depends on PLAT_SAMSUNG
 343         int
 344         default "0" if DEBUG_S3C_UART0
 345         default "1" if DEBUG_S3C_UART1
 346         default "2" if DEBUG_S3C_UART2
 347
 348 endif