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 config SAMSUNG_IRQ_UART
  69        bool
  70        help
  71          Internal configuration to build the IRQ UART demux code.
  72
  73 # options for gpio configuration support
  74
  75 config SAMSUNG_GPIOLIB_4BIT
  76         bool
  77         help
  78           GPIOlib file contains the 4 bit modification functions for gpio
  79           configuration. GPIOlib shall be compiled only for S3C64XX and S5P
  80           series of processors.
  81
  82 config S3C_GPIO_CFG_S3C24XX
  83         bool
  84         help
  85           Internal configuration to enable S3C24XX style GPIO configuration
  86           functions.
  87
  88 config S3C_GPIO_CFG_S3C64XX
  89         bool
  90         help
  91           Internal configuration to enable S3C64XX style GPIO configuration
  92           functions.
  93
  94 config S3C_GPIO_PULL_UPDOWN
  95         bool
  96         help
  97           Internal configuration to enable the correct GPIO pull helper
  98
  99 config S3C_GPIO_PULL_S3C2443
 100         bool
 101         select S3C_GPIO_PULL_UPDOWN
 102         help
 103           Internal configuration to enable the correct GPIO pull helper for S3C2443-style GPIO
 104
 105 config S3C_GPIO_PULL_DOWN
 106         bool
 107         help
 108           Internal configuration to enable the correct GPIO pull helper
 109
 110 config S3C_GPIO_PULL_UP
 111         bool
 112         help
 113           Internal configuration to enable the correct GPIO pull helper
 114
 115 config S5P_GPIO_DRVSTR
 116         bool
 117         help
 118           Internal configuration to get and set correct GPIO driver strength
 119           helper
 120
 121 config SAMSUNG_GPIO_EXTRA
 122         int "Number of additional GPIO pins"
 123         default 0
 124         help
 125           Use additional GPIO space in addition to the GPIO's the SOC
 126           provides. This allows expanding the GPIO space for use with
 127           GPIO expanders.
 128
 129 config S3C_GPIO_SPACE
 130         int "Space between gpio banks"
 131         default 0
 132         help
 133           Add a number of spare GPIO entries between each bank for debugging
 134           purposes. This allows any problems where an counter overflows from
 135           one bank to another to be caught, at the expense of using a little
 136           more memory.
 137
 138 config S3C_GPIO_TRACK
 139         bool
 140         help
 141           Internal configuration option to enable the s3c specific gpio
 142           chip tracking if the platform requires it.
 143
 144 # ADC driver
 145
 146 config S3C_ADC
 147         bool "ADC common driver support"
 148         help
 149           Core support for the ADC block found in the Samsung SoC systems
 150           for drivers such as the touchscreen and hwmon to use to share
 151           this resource.
 152
 153 # device definitions to compile in
 154
 155 config S3C_DEV_HSMMC
 156         bool
 157         help
 158           Compile in platform device definitions for HSMMC code
 159
 160 config S3C_DEV_HSMMC1
 161         bool
 162         help
 163           Compile in platform device definitions for HSMMC channel 1
 164
 165 config S3C_DEV_HSMMC2
 166         bool
 167         help
 168           Compile in platform device definitions for HSMMC channel 2
 169
 170 config S3C_DEV_HSMMC3
 171         bool
 172         help
 173           Compile in platform device definitions for HSMMC channel 3
 174
 175 config S3C_DEV_HWMON
 176         bool
 177         help
 178             Compile in platform device definitions for HWMON
 179
 180 config S3C_DEV_I2C1
 181         bool
 182         help
 183           Compile in platform device definitions for I2C channel 1
 184
 185 config S3C_DEV_I2C2
 186         bool
 187         help
 188           Compile in platform device definitions for I2C channel 2
 189
 190 config S3C_DEV_I2C3
 191         bool
 192         help
 193           Compile in platform device definition for I2C controller 3
 194
 195 config S3C_DEV_I2C4
 196         bool
 197         help
 198           Compile in platform device definition for I2C controller 4
 199
 200 config S3C_DEV_I2C5
 201         bool
 202         help
 203           Compile in platform device definition for I2C controller 5
 204
 205 config S3C_DEV_I2C6
 206         bool
 207         help
 208           Compile in platform device definition for I2C controller 6
 209
 210 config S3C_DEV_I2C7
 211         bool
 212         help
 213           Compile in platform device definition for I2C controller 7
 214
 215 config S3C_DEV_FB
 216         bool
 217         help
 218           Compile in platform device definition for framebuffer
 219
 220 config S3C_DEV_USB_HOST
 221         bool
 222         help
 223           Compile in platform device definition for USB host.
 224
 225 config S3C_DEV_USB_HSOTG
 226         bool
 227         help
 228           Compile in platform device definition for USB high-speed OtG
 229
 230 config S3C_DEV_WDT
 231         bool
 232         default y if ARCH_S3C2410
 233         help
 234           Complie in platform device definition for Watchdog Timer
 235
 236 config S3C_DEV_NAND
 237         bool
 238         help
 239           Compile in platform device definition for NAND controller
 240
 241 config S3C_DEV_ONENAND
 242         bool
 243         help
 244           Compile in platform device definition for OneNAND controller
 245
 246 config S3C_DEV_RTC
 247         bool
 248         help
 249           Complie in platform device definition for RTC
 250
 251 config SAMSUNG_DEV_ADC
 252         bool
 253         help
 254           Compile in platform device definition for ADC controller
 255
 256 config SAMSUNG_DEV_IDE
 257         bool
 258         help
 259           Compile in platform device definitions for IDE
 260
 261 config S3C64XX_DEV_SPI
 262         bool
 263         help
 264           Compile in platform device definitions for S3C64XX's type
 265           SPI controllers.
 266
 267 config SAMSUNG_DEV_TS
 268         bool
 269         help
 270             Common in platform device definitions for touchscreen device
 271
 272 config SAMSUNG_DEV_KEYPAD
 273         bool
 274         help
 275           Compile in platform device definitions for keypad
 276
 277 config SAMSUNG_DEV_PWM
 278         bool
 279         default y if ARCH_S3C2410
 280         help
 281           Compile in platform device definition for PWM Timer
 282
 283 config SAMSUNG_DEV_BACKLIGHT
 284         bool
 285         depends on SAMSUNG_DEV_PWM
 286         help
 287           Compile in platform device definition LCD backlight with PWM Timer
 288
 289 config S3C24XX_PWM
 290         bool "PWM device support"
 291         select HAVE_PWM
 292         help
 293           Support for exporting the PWM timer blocks via the pwm device
 294           system
 295
 296 # DMA
 297
 298 config S3C_DMA
 299         bool
 300         help
 301           Internal configuration for S3C DMA core
 302
 303 config S3C_PL330_DMA
 304         bool
 305         select PL330
 306         help
 307           S3C DMA API Driver for PL330 DMAC.
 308
 309 comment "Power management"
 310
 311 config SAMSUNG_PM_DEBUG
 312         bool "S3C2410 PM Suspend debug"
 313         depends on PM
 314         help
 315           Say Y here if you want verbose debugging from the PM Suspend and
 316           Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 317           for more information.
 318
 319 config S3C_PM_DEBUG_LED_SMDK
 320        bool "SMDK LED suspend/resume debugging"
 321        depends on PM && (MACH_SMDK6410)
 322        help
 323          Say Y here to enable the use of the SMDK LEDs on the baseboard
 324          for debugging of the state of the suspend and resume process.
 325
 326          Note, this currently only works for S3C64XX based SMDK boards.
 327
 328 config SAMSUNG_PM_CHECK
 329         bool "S3C2410 PM Suspend Memory CRC"
 330         depends on PM && CRC32
 331         help
 332           Enable the PM code's memory area checksum over sleep. This option
 333           will generate CRCs of all blocks of memory, and store them before
 334           going to sleep. The blocks are then checked on resume for any
 335           errors.
 336
 337           Note, this can take several seconds depending on memory size
 338           and CPU speed.
 339
 340           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 341
 342 config SAMSUNG_PM_CHECK_CHUNKSIZE
 343         int "S3C2410 PM Suspend CRC Chunksize (KiB)"
 344         depends on PM && SAMSUNG_PM_CHECK
 345         default 64
 346         help
 347           Set the chunksize in Kilobytes of the CRC for checking memory
 348           corruption over suspend and resume. A smaller value will mean that
 349           the CRC data block will take more memory, but wil identify any
 350           faults with better precision.
 351
 352           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 353
 354 config SAMSUNG_WAKEMASK
 355         bool
 356         depends on PM
 357         help
 358           Compile support for wakeup-mask controls found on the S3C6400
 359           and above. This code allows a set of interrupt to wakeup-mask
 360           mappings. See <plat/wakeup-mask.h>
 361
 362 comment "Power Domain"
 363
 364 config SAMSUNG_PD
 365         bool "Samsung Power Domain"
 366         depends on PM_RUNTIME
 367         help
 368           Say Y here if you want to control Power Domain by Runtime PM.
 369
 370 endif