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 128 if SAMSUNG_GPIO_EXTRA128
  92         default 64 if SAMSUNG_GPIO_EXTRA64
  93         default 0
  94         help
  95           Use additional GPIO space in addition to the GPIO's the SOC
  96           provides. This allows expanding the GPIO space for use with
  97           GPIO expanders.
  98
  99 config SAMSUNG_GPIO_EXTRA64
 100         bool
 101
 102 config SAMSUNG_GPIO_EXTRA128
 103         bool
 104
 105 config S3C_GPIO_SPACE
 106         int "Space between gpio banks"
 107         default 0
 108         help
 109           Add a number of spare GPIO entries between each bank for debugging
 110           purposes. This allows any problems where an counter overflows from
 111           one bank to another to be caught, at the expense of using a little
 112           more memory.
 113
 114 config S3C_GPIO_TRACK
 115         bool
 116         help
 117           Internal configuration option to enable the s3c specific gpio
 118           chip tracking if the platform requires it.
 119
 120 # ADC driver
 121
 122 config S3C_ADC
 123         bool "ADC common driver support"
 124         help
 125           Core support for the ADC block found in the Samsung SoC systems
 126           for drivers such as the touchscreen and hwmon to use to share
 127           this resource.
 128
 129 # device definitions to compile in
 130
 131 config S3C_DEV_HSMMC
 132         bool
 133         help
 134           Compile in platform device definitions for HSMMC code
 135
 136 config S3C_DEV_HSMMC1
 137         bool
 138         help
 139           Compile in platform device definitions for HSMMC channel 1
 140
 141 config S3C_DEV_HSMMC2
 142         bool
 143         help
 144           Compile in platform device definitions for HSMMC channel 2
 145
 146 config S3C_DEV_HSMMC3
 147         bool
 148         help
 149           Compile in platform device definitions for HSMMC channel 3
 150
 151 config S3C_DEV_HWMON
 152         bool
 153         help
 154             Compile in platform device definitions for HWMON
 155
 156 config S3C_DEV_I2C1
 157         bool
 158         help
 159           Compile in platform device definitions for I2C channel 1
 160
 161 config S3C_DEV_I2C2
 162         bool
 163         help
 164           Compile in platform device definitions for I2C channel 2
 165
 166 config S3C_DEV_I2C3
 167         bool
 168         help
 169           Compile in platform device definition for I2C controller 3
 170
 171 config S3C_DEV_I2C4
 172         bool
 173         help
 174           Compile in platform device definition for I2C controller 4
 175
 176 config S3C_DEV_I2C5
 177         bool
 178         help
 179           Compile in platform device definition for I2C controller 5
 180
 181 config S3C_DEV_I2C6
 182         bool
 183         help
 184           Compile in platform device definition for I2C controller 6
 185
 186 config S3C_DEV_I2C7
 187         bool
 188         help
 189           Compile in platform device definition for I2C controller 7
 190
 191 config S3C_DEV_FB
 192         bool
 193         help
 194           Compile in platform device definition for framebuffer
 195
 196 config S3C_DEV_USB_HOST
 197         bool
 198         help
 199           Compile in platform device definition for USB host.
 200
 201 config S3C_DEV_USB_HSOTG
 202         bool
 203         help
 204           Compile in platform device definition for USB high-speed OtG
 205
 206 config S3C_DEV_WDT
 207         bool
 208         default y if ARCH_S3C24XX
 209         help
 210           Complie in platform device definition for Watchdog Timer
 211
 212 config S3C_DEV_NAND
 213         bool
 214         help
 215           Compile in platform device definition for NAND controller
 216
 217 config S3C_DEV_ONENAND
 218         bool
 219         help
 220           Compile in platform device definition for OneNAND controller
 221
 222 config S3C_DEV_RTC
 223         bool
 224         help
 225           Complie in platform device definition for RTC
 226
 227 config SAMSUNG_DEV_ADC
 228         bool
 229         help
 230           Compile in platform device definition for ADC controller
 231
 232 config SAMSUNG_DEV_IDE
 233         bool
 234         help
 235           Compile in platform device definitions for IDE
 236
 237 config S3C64XX_DEV_SPI0
 238         bool
 239         help
 240           Compile in platform device definitions for S3C64XX's type
 241           SPI controller 0
 242
 243 config S3C64XX_DEV_SPI1
 244         bool
 245         help
 246           Compile in platform device definitions for S3C64XX's type
 247           SPI controller 1
 248
 249 config S3C64XX_DEV_SPI2
 250         bool
 251         help
 252           Compile in platform device definitions for S3C64XX's type
 253           SPI controller 2
 254
 255 config SAMSUNG_DEV_TS
 256         bool
 257         help
 258             Common in platform device definitions for touchscreen device
 259
 260 config SAMSUNG_DEV_KEYPAD
 261         bool
 262         help
 263           Compile in platform device definitions for keypad
 264
 265 config SAMSUNG_DEV_PWM
 266         bool
 267         default y if ARCH_S3C24XX
 268         help
 269           Compile in platform device definition for PWM Timer
 270
 271 config SAMSUNG_DEV_BACKLIGHT
 272         bool
 273         depends on SAMSUNG_DEV_PWM
 274         help
 275           Compile in platform device definition LCD backlight with PWM Timer
 276
 277 config S3C24XX_PWM
 278         bool "PWM device support"
 279         select HAVE_PWM
 280         help
 281           Support for exporting the PWM timer blocks via the pwm device
 282           system
 283
 284 # DMA
 285
 286 config S3C_DMA
 287         bool
 288         help
 289           Internal configuration for S3C DMA core
 290
 291 config SAMSUNG_DMADEV
 292         bool
 293         select DMADEVICES
 294         select PL330_DMA if (CPU_EXYNOS4210 || CPU_S5PV210 || CPU_S5PC100 || \
 295                                         CPU_S5P6450 || CPU_S5P6440)
 296         select ARM_AMBA
 297         help
 298           Use DMA device engine for PL330 DMAC.
 299
 300 comment "Power management"
 301
 302 config SAMSUNG_PM_DEBUG
 303         bool "S3C2410 PM Suspend debug"
 304         depends on PM
 305         help
 306           Say Y here if you want verbose debugging from the PM Suspend and
 307           Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 308           for more information.
 309
 310 config S3C_PM_DEBUG_LED_SMDK
 311        bool "SMDK LED suspend/resume debugging"
 312        depends on PM && (MACH_SMDK6410)
 313        help
 314          Say Y here to enable the use of the SMDK LEDs on the baseboard
 315          for debugging of the state of the suspend and resume process.
 316
 317          Note, this currently only works for S3C64XX based SMDK boards.
 318
 319 config SAMSUNG_PM_CHECK
 320         bool "S3C2410 PM Suspend Memory CRC"
 321         depends on PM && CRC32
 322         help
 323           Enable the PM code's memory area checksum over sleep. This option
 324           will generate CRCs of all blocks of memory, and store them before
 325           going to sleep. The blocks are then checked on resume for any
 326           errors.
 327
 328           Note, this can take several seconds depending on memory size
 329           and CPU speed.
 330
 331           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 332
 333 config SAMSUNG_PM_CHECK_CHUNKSIZE
 334         int "S3C2410 PM Suspend CRC Chunksize (KiB)"
 335         depends on PM && SAMSUNG_PM_CHECK
 336         default 64
 337         help
 338           Set the chunksize in Kilobytes of the CRC for checking memory
 339           corruption over suspend and resume. A smaller value will mean that
 340           the CRC data block will take more memory, but wil identify any
 341           faults with better precision.
 342
 343           See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
 344
 345 config SAMSUNG_WAKEMASK
 346         bool
 347         depends on PM
 348         help
 349           Compile support for wakeup-mask controls found on the S3C6400
 350           and above. This code allows a set of interrupt to wakeup-mask
 351           mappings. See <plat/wakeup-mask.h>
 352
 353 comment "Power Domain"
 354
 355 config SAMSUNG_PD
 356         bool "Samsung Power Domain"
 357         depends on PM_RUNTIME
 358         help
 359           Say Y here if you want to control Power Domain by Runtime PM.
 360
 361 config DEBUG_S3C_UART
 362         depends on PLAT_SAMSUNG
 363         int
 364         default "0" if DEBUG_S3C_UART0
 365         default "1" if DEBUG_S3C_UART1
 366         default "2" if DEBUG_S3C_UART2
 367
 368 endif