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_S3C24XX
  78         bool
  79         help
  80           Internal configuration to enable S3C24XX style GPIO configuration
  81           functions.
  82
  83 config S3C_GPIO_CFG_S3C64XX
  84         bool
  85         help
  86           Internal configuration to enable S3C64XX style GPIO configuration
  87           functions.
  88
  89 config S3C_GPIO_PULL_UPDOWN
  90         bool
  91         help
  92           Internal configuration to enable the correct GPIO pull helper
  93
  94 config S3C_GPIO_PULL_S3C2443
  95         bool
  96         select S3C_GPIO_PULL_UPDOWN
  97         help
  98           Internal configuration to enable the correct GPIO pull helper for S3C2443-style GPIO
  99
 100 config S3C_GPIO_PULL_DOWN
 101         bool
 102         help
 103           Internal configuration to enable the correct GPIO pull helper
 104
 105 config S3C_GPIO_PULL_UP
 106         bool
 107         help
 108           Internal configuration to enable the correct GPIO pull helper
 109
 110 config S5P_GPIO_DRVSTR
 111         bool
 112         help
 113           Internal configuration to get and set correct GPIO driver strength
 114           helper
 115
 116 config SAMSUNG_GPIO_EXTRA
 117         int "Number of additional GPIO pins"
 118         default 0
 119         help
 120           Use additional GPIO space in addition to the GPIO's the SOC
 121           provides. This allows expanding the GPIO space for use with
 122           GPIO expanders.
 123
 124 config S3C_GPIO_SPACE
 125         int "Space between gpio banks"
 126         default 0
 127         help
 128           Add a number of spare GPIO entries between each bank for debugging
 129           purposes. This allows any problems where an counter overflows from
 130           one bank to another to be caught, at the expense of using a little
 131           more memory.
 132
 133 config S3C_GPIO_TRACK
 134         bool
 135         help
 136           Internal configuration option to enable the s3c specific gpio
 137           chip tracking if the platform requires it.
 138
 139 # ADC driver
 140
 141 config S3C_ADC
 142         bool "ADC common driver support"
 143         help
 144           Core support for the ADC block found in the Samsung SoC systems
 145           for drivers such as the touchscreen and hwmon to use to share
 146           this resource.
 147
 148 # device definitions to compile in
 149
 150 config S3C_DEV_HSMMC
 151         bool
 152         help
 153           Compile in platform device definitions for HSMMC code
 154
 155 config S3C_DEV_HSMMC1
 156         bool
 157         help
 158           Compile in platform device definitions for HSMMC channel 1
 159
 160 config S3C_DEV_HSMMC2
 161         bool
 162         help
 163           Compile in platform device definitions for HSMMC channel 2
 164
 165 config S3C_DEV_HSMMC3
 166         bool
 167         help
 168           Compile in platform device definitions for HSMMC channel 3
 169
 170 config S3C_DEV_HWMON
 171         bool
 172         help
 173             Compile in platform device definitions for HWMON
 174
 175 config S3C_DEV_I2C1
 176         bool
 177         help
 178           Compile in platform device definitions for I2C channel 1
 179
 180 config S3C_DEV_I2C2
 181         bool
 182         help
 183           Compile in platform device definitions for I2C channel 2
 184
 185 config S3C_DEV_I2C3
 186         bool
 187         help
 188           Compile in platform device definition for I2C controller 3
 189
 190 config S3C_DEV_I2C4
 191         bool
 192         help
 193           Compile in platform device definition for I2C controller 4
 194
 195 config S3C_DEV_I2C5
 196         bool
 197         help
 198           Compile in platform device definition for I2C controller 5
 199
 200 config S3C_DEV_I2C6
 201         bool
 202         help
 203           Compile in platform device definition for I2C controller 6
 204
 205 config S3C_DEV_I2C7
 206         bool
 207         help
 208           Compile in platform device definition for I2C controller 7
 209
 210 config S3C_DEV_FB
 211         bool
 212         help
 213           Compile in platform device definition for framebuffer
 214
 215 config S3C_DEV_USB_HOST
 216         bool
 217         help
 218           Compile in platform device definition for USB host.
 219
 220 config S3C_DEV_USB_HSOTG
 221         bool
 222         help
 223           Compile in platform device definition for USB high-speed OtG
 224
 225 config S3C_DEV_WDT
 226         bool
 227         default y if ARCH_S3C2410
 228         help
 229           Complie in platform device definition for Watchdog Timer
 230
 231 config S3C_DEV_NAND
 232         bool
 233         help
 234           Compile in platform device definition for NAND controller
 235
 236 config S3C_DEV_ONENAND
 237         bool
 238         help
 239           Compile in platform device definition for OneNAND controller
 240
 241 config S3C_DEV_RTC
 242         bool
 243         help
 244           Complie in platform device definition for RTC
 245
 246 config SAMSUNG_DEV_ADC
 247         bool
 248         help
 249           Compile in platform device definition for ADC controller
 250
 251 config SAMSUNG_DEV_IDE
 252         bool
 253         help
 254           Compile in platform device definitions for IDE
 255
 256 config S3C64XX_DEV_SPI
 257         bool
 258         help
 259           Compile in platform device definitions for S3C64XX's type
 260           SPI controllers.
 261
 262 config SAMSUNG_DEV_TS
 263         bool
 264         help
 265             Common in platform device definitions for touchscreen device
 266
 267 config SAMSUNG_DEV_KEYPAD
 268         bool
 269         help
 270           Compile in platform device definitions for keypad
 271
 272 config SAMSUNG_DEV_PWM
 273         bool
 274         default y if ARCH_S3C2410
 275         help
 276           Compile in platform device definition for PWM Timer
 277
 278 config SAMSUNG_DEV_BACKLIGHT
 279         bool
 280         depends on SAMSUNG_DEV_PWM
 281         help
 282           Compile in platform device definition LCD backlight with PWM Timer
 283
 284 config S3C24XX_PWM
 285         bool "PWM device support"
 286         select HAVE_PWM
 287         help
 288           Support for exporting the PWM timer blocks via the pwm device
 289           system
 290
 291 # DMA
 292
 293 config S3C_DMA
 294         bool
 295         help
 296           Internal configuration for S3C DMA core
 297
 298 config S3C_PL330_DMA
 299         bool
 300         select PL330
 301         help
 302           S3C DMA API Driver for PL330 DMAC.
 303
 304 comment "Power management"
 305
 306 config SAMSUNG_PM_DEBUG
 307         bool "S3C2410 PM Suspend debug"
 308         depends on PM
 309         help
 310           Say Y here if you want verbose debugging from the PM Suspend and
 311           Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 312           for more information.
 313
 314 config S3C_PM_DEBUG_LED_SMDK
 315        bool "SMDK LED suspend/resume debugging"
 316        depends on PM && (MACH_SMDK6410)
 317        help
 318          Say Y here to enable the use of the SMDK LEDs on the baseboard
 319          for debugging of the state of the suspend and resume process.
 320
 321          Note, this currently only works for S3C64XX based SMDK boards.
 322
 323 config SAMSUNG_PM_CHECK
 324         bool "S3C2410 PM Suspend Memory CRC"
 325         depends on PM && CRC32
 326         help
 327           Enable the PM code's memory area checksum over sleep. This option
 328           will generate CRCs of all blocks of memory, and store them before
 329           going to sleep. The blocks are then checked on resume for any
 330           errors.
 331
 332           Note, this can take several seconds depending on memory size
 333           and CPU speed.
 334
 335           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 336
 337 config SAMSUNG_PM_CHECK_CHUNKSIZE
 338         int "S3C2410 PM Suspend CRC Chunksize (KiB)"
 339         depends on PM && SAMSUNG_PM_CHECK
 340         default 64
 341         help
 342           Set the chunksize in Kilobytes of the CRC for checking memory
 343           corruption over suspend and resume. A smaller value will mean that
 344           the CRC data block will take more memory, but wil identify any
 345           faults with better precision.
 346
 347           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 348
 349 config SAMSUNG_WAKEMASK
 350         bool
 351         depends on PM
 352         help
 353           Compile support for wakeup-mask controls found on the S3C6400
 354           and above. This code allows a set of interrupt to wakeup-mask
 355           mappings. See <plat/wakeup-mask.h>
 356
 357 comment "Power Domain"
 358
 359 config SAMSUNG_PD
 360         bool "Samsung Power Domain"
 361         depends on PM_RUNTIME
 362         help
 363           Say Y here if you want to control Power Domain by Runtime PM.
 364
 365 config DEBUG_S3C_UART
 366         depends on PLAT_SAMSUNG
 367         int
 368         default "0" if DEBUG_S3C_UART0
 369         default "1" if DEBUG_S3C_UART1
 370         default "2" if DEBUG_S3C_UART2
 371
 372 endif