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 # timer options
  54
  55 config S5P_HRT
  56         bool
  57         select SAMSUNG_DEV_PWM
  58         help
  59           Use the High Resolution timer support
  60
  61 # clock options
  62
  63 config SAMSUNG_CLKSRC
  64         bool
  65         help
  66           Select the clock code for the clksrc implementation
  67           used by newer systems such as the S3C64XX.
  68
  69 config S5P_CLOCK
  70         def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS)
  71         help
  72           Support common clock part for ARCH_S5P and ARCH_EXYNOS SoCs
  73
  74 # options for IRQ support
  75
  76 config SAMSUNG_IRQ_VIC_TIMER
  77        bool
  78        help
  79          Internal configuration to build the VIC timer interrupt code.
  80
  81 config S5P_IRQ
  82         def_bool (ARCH_S5P64X0 || ARCH_S5PC100 || ARCH_S5PV210 || ARCH_EXYNOS)
  83         help
  84           Support common interrup part for ARCH_S5P and ARCH_EXYNOS SoCs
  85
  86 config S5P_EXT_INT
  87         bool
  88         help
  89           Use the external interrupts (other than GPIO interrupts.)
  90           Note: Do not choose this for S5P6440 and S5P6450.
  91
  92 config S5P_GPIO_INT
  93         bool
  94         help
  95           Common code for the GPIO interrupts (other than external interrupts.)
  96
  97 # options for gpio configuration support
  98
  99 config SAMSUNG_GPIOLIB_4BIT
 100         bool
 101         help
 102           GPIOlib file contains the 4 bit modification functions for gpio
 103           configuration. GPIOlib shall be compiled only for S3C64XX and S5P
 104           series of processors.
 105
 106 config S3C_GPIO_CFG_S3C64XX
 107         bool
 108         help
 109           Internal configuration to enable S3C64XX style GPIO configuration
 110           functions.
 111
 112 config S5P_GPIO_DRVSTR
 113         bool
 114         help
 115           Internal configuration to get and set correct GPIO driver strength
 116           helper
 117
 118 config SAMSUNG_GPIO_EXTRA
 119         int "Number of additional GPIO pins"
 120         default 128 if SAMSUNG_GPIO_EXTRA128
 121         default 64 if SAMSUNG_GPIO_EXTRA64
 122         default 0
 123         help
 124           Use additional GPIO space in addition to the GPIO's the SOC
 125           provides. This allows expanding the GPIO space for use with
 126           GPIO expanders.
 127
 128 config SAMSUNG_GPIO_EXTRA64
 129         bool
 130
 131 config SAMSUNG_GPIO_EXTRA128
 132         bool
 133
 134 config S3C_GPIO_SPACE
 135         int "Space between gpio banks"
 136         default 0
 137         help
 138           Add a number of spare GPIO entries between each bank for debugging
 139           purposes. This allows any problems where an counter overflows from
 140           one bank to another to be caught, at the expense of using a little
 141           more memory.
 142
 143 config S3C_GPIO_TRACK
 144         bool
 145         help
 146           Internal configuration option to enable the s3c specific gpio
 147           chip tracking if the platform requires it.
 148
 149 # ADC driver
 150
 151 config S3C_ADC
 152         bool "ADC common driver support"
 153         help
 154           Core support for the ADC block found in the Samsung SoC systems
 155           for drivers such as the touchscreen and hwmon to use to share
 156           this resource.
 157
 158 # device definitions to compile in
 159
 160 config S3C_DEV_HSMMC
 161         bool
 162         help
 163           Compile in platform device definitions for HSMMC code
 164
 165 config S3C_DEV_HSMMC1
 166         bool
 167         help
 168           Compile in platform device definitions for HSMMC channel 1
 169
 170 config S3C_DEV_HSMMC2
 171         bool
 172         help
 173           Compile in platform device definitions for HSMMC channel 2
 174
 175 config S3C_DEV_HSMMC3
 176         bool
 177         help
 178           Compile in platform device definitions for HSMMC channel 3
 179
 180 config S3C_DEV_HWMON
 181         bool
 182         help
 183             Compile in platform device definitions for HWMON
 184
 185 config S3C_DEV_I2C1
 186         bool
 187         help
 188           Compile in platform device definitions for I2C channel 1
 189
 190 config S3C_DEV_I2C2
 191         bool
 192         help
 193           Compile in platform device definitions for I2C channel 2
 194
 195 config S3C_DEV_I2C3
 196         bool
 197         help
 198           Compile in platform device definition for I2C controller 3
 199
 200 config S3C_DEV_I2C4
 201         bool
 202         help
 203           Compile in platform device definition for I2C controller 4
 204
 205 config S3C_DEV_I2C5
 206         bool
 207         help
 208           Compile in platform device definition for I2C controller 5
 209
 210 config S3C_DEV_I2C6
 211         bool
 212         help
 213           Compile in platform device definition for I2C controller 6
 214
 215 config S3C_DEV_I2C7
 216         bool
 217         help
 218           Compile in platform device definition for I2C controller 7
 219
 220 config S3C_DEV_FB
 221         bool
 222         help
 223           Compile in platform device definition for framebuffer
 224
 225 config S3C_DEV_USB_HOST
 226         bool
 227         help
 228           Compile in platform device definition for USB host.
 229
 230 config S3C_DEV_USB_HSOTG
 231         bool
 232         help
 233           Compile in platform device definition for USB high-speed OtG
 234
 235 config S3C_DEV_WDT
 236         bool
 237         default y if ARCH_S3C24XX
 238         help
 239           Complie in platform device definition for Watchdog Timer
 240
 241 config S3C_DEV_NAND
 242         bool
 243         help
 244           Compile in platform device definition for NAND controller
 245
 246 config S3C_DEV_ONENAND
 247         bool
 248         help
 249           Compile in platform device definition for OneNAND controller
 250
 251 config S3C_DEV_RTC
 252         bool
 253         help
 254           Complie in platform device definition for RTC
 255
 256 config SAMSUNG_DEV_ADC
 257         bool
 258         help
 259           Compile in platform device definition for ADC controller
 260
 261 config SAMSUNG_DEV_IDE
 262         bool
 263         help
 264           Compile in platform device definitions for IDE
 265
 266 config S3C64XX_DEV_SPI0
 267         bool
 268         help
 269           Compile in platform device definitions for S3C64XX's type
 270           SPI controller 0
 271
 272 config S3C64XX_DEV_SPI1
 273         bool
 274         help
 275           Compile in platform device definitions for S3C64XX's type
 276           SPI controller 1
 277
 278 config S3C64XX_DEV_SPI2
 279         bool
 280         help
 281           Compile in platform device definitions for S3C64XX's type
 282           SPI controller 2
 283
 284 config SAMSUNG_DEV_TS
 285         bool
 286         help
 287             Common in platform device definitions for touchscreen device
 288
 289 config SAMSUNG_DEV_KEYPAD
 290         bool
 291         help
 292           Compile in platform device definitions for keypad
 293
 294 config SAMSUNG_DEV_PWM
 295         bool
 296         default y if ARCH_S3C24XX
 297         help
 298           Compile in platform device definition for PWM Timer
 299
 300 config SAMSUNG_DEV_BACKLIGHT
 301         bool
 302         depends on SAMSUNG_DEV_PWM
 303         help
 304           Compile in platform device definition LCD backlight with PWM Timer
 305
 306 config S3C24XX_PWM
 307         bool "PWM device support"
 308         select HAVE_PWM
 309         help
 310           Support for exporting the PWM timer blocks via the pwm device
 311           system
 312
 313 # DMA
 314
 315 config S3C_DMA
 316         bool
 317         help
 318           Internal configuration for S3C DMA core
 319
 320 config SAMSUNG_DMADEV
 321         bool
 322         select DMADEVICES
 323         select PL330_DMA if (CPU_EXYNOS4210 || CPU_S5PV210 || CPU_S5PC100 || \
 324                                         CPU_S5P6450 || CPU_S5P6440)
 325         select ARM_AMBA
 326         help
 327           Use DMA device engine for PL330 DMAC.
 328
 329 comment "Power management"
 330
 331 config SAMSUNG_PM_DEBUG
 332         bool "S3C2410 PM Suspend debug"
 333         depends on PM
 334         help
 335           Say Y here if you want verbose debugging from the PM Suspend and
 336           Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 337           for more information.
 338
 339 config S3C_PM_DEBUG_LED_SMDK
 340        bool "SMDK LED suspend/resume debugging"
 341        depends on PM && (MACH_SMDK6410)
 342        help
 343          Say Y here to enable the use of the SMDK LEDs on the baseboard
 344          for debugging of the state of the suspend and resume process.
 345
 346          Note, this currently only works for S3C64XX based SMDK boards.
 347
 348 config SAMSUNG_PM_CHECK
 349         bool "S3C2410 PM Suspend Memory CRC"
 350         depends on PM && CRC32
 351         help
 352           Enable the PM code's memory area checksum over sleep. This option
 353           will generate CRCs of all blocks of memory, and store them before
 354           going to sleep. The blocks are then checked on resume for any
 355           errors.
 356
 357           Note, this can take several seconds depending on memory size
 358           and CPU speed.
 359
 360           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 361
 362 config SAMSUNG_PM_CHECK_CHUNKSIZE
 363         int "S3C2410 PM Suspend CRC Chunksize (KiB)"
 364         depends on PM && SAMSUNG_PM_CHECK
 365         default 64
 366         help
 367           Set the chunksize in Kilobytes of the CRC for checking memory
 368           corruption over suspend and resume. A smaller value will mean that
 369           the CRC data block will take more memory, but wil identify any
 370           faults with better precision.
 371
 372           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 373
 374 config SAMSUNG_WAKEMASK
 375         bool
 376         depends on PM
 377         help
 378           Compile support for wakeup-mask controls found on the S3C6400
 379           and above. This code allows a set of interrupt to wakeup-mask
 380           mappings. See <plat/wakeup-mask.h>
 381
 382 config S5P_PM
 383         bool
 384         help
 385           Common code for power management support on S5P and newer SoCs
 386           Note: Do not select this for S5P6440 and S5P6450.
 387
 388 config S5P_SLEEP
 389         bool
 390         help
 391           Internal config node to apply common S5P sleep management code.
 392           Can be selected by S5P and newer SoCs with similar sleep procedure.
 393
 394 comment "Power Domain"
 395
 396 config SAMSUNG_PD
 397         bool "Samsung Power Domain"
 398         depends on PM_RUNTIME
 399         help
 400           Say Y here if you want to control Power Domain by Runtime PM.
 401
 402 config DEBUG_S3C_UART
 403         depends on PLAT_SAMSUNG
 404         int
 405         default "0" if DEBUG_S3C_UART0
 406         default "1" if DEBUG_S3C_UART1
 407         default "2" if DEBUG_S3C_UART2
 408
 409 endif