1# arch/arm/plat-samsung/Kconfig 2# 3# Copyright 2009 Simtec Electronics 4# 5# Licensed under GPLv2 6 7config PLAT_SAMSUNG 8 bool 9 depends on PLAT_S3C24XX || ARCH_S3C64XX || PLAT_S5P 10 select NO_IOPORT 11 default y 12 help 13 Base platform code for all Samsung SoC based systems 14 15if PLAT_SAMSUNG 16 17# boot configurations 18 19comment "Boot options" 20 21config S3C_BOOT_WATCHDOG 22 bool "S3C Initialisation watchdog" 23 depends on S3C2410_WATCHDOG 24 help 25 Say y to enable the watchdog during the kernel decompression 26 stage. If the kernel fails to uncompress, then the watchdog 27 will trigger a reset and the system should restart. 28 29config S3C_BOOT_ERROR_RESET 30 bool "S3C Reboot on decompression error" 31 help 32 Say y here to use the watchdog to reset the system if the 33 kernel decompressor detects an error during decompression. 34 35config S3C_BOOT_UART_FORCE_FIFO 36 bool "Force UART FIFO on during boot process" 37 default y 38 help 39 Say Y here to force the UART FIFOs on during the kernel 40 uncompressor 41 42 43config S3C_LOWLEVEL_UART_PORT 44 int "S3C UART to use for low-level messages" 45 default 0 46 help 47 Choice of which UART port to use for the low-level messages, 48 such as the `Uncompressing...` at start time. The value of 49 this configuration should be between zero and two. The port 50 must have been initialised by the boot-loader before use. 51 52# clock options 53 54config SAMSUNG_CLKSRC 55 bool 56 help 57 Select the clock code for the clksrc implementation 58 used by newer systems such as the S3C64XX. 59 60# options for IRQ support 61 62config SAMSUNG_IRQ_VIC_TIMER 63 bool 64 help 65 Internal configuration to build the VIC timer interrupt code. 66 67config SAMSUNG_IRQ_UART 68 bool 69 help 70 Internal configuration to build the IRQ UART demux code. 71 72# options for gpio configuration support 73 74config SAMSUNG_GPIOLIB_4BIT 75 bool 76 help 77 GPIOlib file contains the 4 bit modification functions for gpio 78 configuration. GPIOlib shall be compiled only for S3C64XX and S5P 79 series of processors. 80 81config S3C_GPIO_CFG_S3C24XX 82 bool 83 help 84 Internal configuration to enable S3C24XX style GPIO configuration 85 functions. 86 87config S3C_GPIO_CFG_S3C64XX 88 bool 89 help 90 Internal configuration to enable S3C64XX style GPIO configuration 91 functions. 92 93config S3C_GPIO_PULL_UPDOWN 94 bool 95 help 96 Internal configuration to enable the correct GPIO pull helper 97 98config S3C_GPIO_PULL_DOWN 99 bool 100 help 101 Internal configuration to enable the correct GPIO pull helper 102 103config S3C_GPIO_PULL_UP 104 bool 105 help 106 Internal configuration to enable the correct GPIO pull helper 107 108config S5P_GPIO_DRVSTR 109 bool 110 help 111 Internal configuration to get and set correct GPIO driver strength 112 helper 113 114config SAMSUNG_GPIO_EXTRA 115 int "Number of additional GPIO pins" 116 default 0 117 help 118 Use additional GPIO space in addition to the GPIO's the SOC 119 provides. This allows expanding the GPIO space for use with 120 GPIO expanders. 121 122config S3C_GPIO_SPACE 123 int "Space between gpio banks" 124 default 0 125 help 126 Add a number of spare GPIO entries between each bank for debugging 127 purposes. This allows any problems where an counter overflows from 128 one bank to another to be caught, at the expense of using a little 129 more memory. 130 131config S3C_GPIO_TRACK 132 bool 133 help 134 Internal configuration option to enable the s3c specific gpio 135 chip tracking if the platform requires it. 136 137# ADC driver 138 139config S3C_ADC 140 bool "ADC common driver support" 141 help 142 Core support for the ADC block found in the Samsung SoC systems 143 for drivers such as the touchscreen and hwmon to use to share 144 this resource. 145 146# device definitions to compile in 147 148config S3C_DEV_HSMMC 149 bool 150 help 151 Compile in platform device definitions for HSMMC code 152 153config S3C_DEV_HSMMC1 154 bool 155 help 156 Compile in platform device definitions for HSMMC channel 1 157 158config S3C_DEV_HSMMC2 159 bool 160 help 161 Compile in platform device definitions for HSMMC channel 2 162 163config S3C_DEV_HSMMC3 164 bool 165 help 166 Compile in platform device definitions for HSMMC channel 3 167 168config S3C_DEV_HWMON 169 bool 170 help 171 Compile in platform device definitions for HWMON 172 173config S3C_DEV_I2C1 174 bool 175 help 176 Compile in platform device definitions for I2C channel 1 177 178config S3C_DEV_I2C2 179 bool 180 help 181 Compile in platform device definitions for I2C channel 2 182 183config S3C_DEV_FB 184 bool 185 help 186 Compile in platform device definition for framebuffer 187 188config S3C_DEV_USB_HOST 189 bool 190 help 191 Compile in platform device definition for USB host. 192 193config S3C_DEV_USB_HSOTG 194 bool 195 help 196 Compile in platform device definition for USB high-speed OtG 197 198config S3C_DEV_WDT 199 bool 200 default y if ARCH_S3C2410 201 help 202 Complie in platform device definition for Watchdog Timer 203 204config S3C_DEV_NAND 205 bool 206 help 207 Compile in platform device definition for NAND controller 208 209config S3C_DEV_ONENAND 210 bool 211 help 212 Compile in platform device definition for OneNAND controller 213 214config S3C_DEV_RTC 215 bool 216 help 217 Complie in platform device definition for RTC 218 219config SAMSUNG_DEV_ADC 220 bool 221 help 222 Compile in platform device definition for ADC controller 223 224config SAMSUNG_DEV_IDE 225 bool 226 help 227 Compile in platform device definitions for IDE 228 229config S3C64XX_DEV_SPI 230 bool 231 help 232 Compile in platform device definitions for S3C64XX's type 233 SPI controllers. 234 235config SAMSUNG_DEV_TS 236 bool 237 help 238 Common in platform device definitions for touchscreen device 239 240config SAMSUNG_DEV_KEYPAD 241 bool 242 help 243 Compile in platform device definitions for keypad 244 245# DMA 246 247config S3C_DMA 248 bool 249 help 250 Internal configuration for S3C DMA core 251 252config S3C_PL330_DMA 253 bool 254 select PL330 255 help 256 S3C DMA API Driver for PL330 DMAC. 257 258comment "Power management" 259 260config SAMSUNG_PM_DEBUG 261 bool "S3C2410 PM Suspend debug" 262 depends on PM 263 help 264 Say Y here if you want verbose debugging from the PM Suspend and 265 Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> 266 for more information. 267 268config S3C_PM_DEBUG_LED_SMDK 269 bool "SMDK LED suspend/resume debugging" 270 depends on PM && (MACH_SMDK6410) 271 help 272 Say Y here to enable the use of the SMDK LEDs on the baseboard 273 for debugging of the state of the suspend and resume process. 274 275 Note, this currently only works for S3C64XX based SMDK boards. 276 277config SAMSUNG_PM_CHECK 278 bool "S3C2410 PM Suspend Memory CRC" 279 depends on PM && CRC32 280 help 281 Enable the PM code's memory area checksum over sleep. This option 282 will generate CRCs of all blocks of memory, and store them before 283 going to sleep. The blocks are then checked on resume for any 284 errors. 285 286 Note, this can take several seconds depending on memory size 287 and CPU speed. 288 289 See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> 290 291config SAMSUNG_PM_CHECK_CHUNKSIZE 292 int "S3C2410 PM Suspend CRC Chunksize (KiB)" 293 depends on PM && SAMSUNG_PM_CHECK 294 default 64 295 help 296 Set the chunksize in Kilobytes of the CRC for checking memory 297 corruption over suspend and resume. A smaller value will mean that 298 the CRC data block will take more memory, but wil identify any 299 faults with better precision. 300 301 See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> 302 303config SAMSUNG_WAKEMASK 304 bool 305 depends on PM 306 help 307 Compile support for wakeup-mask controls found on the S3C6400 308 and above. This code allows a set of interrupt to wakeup-mask 309 mappings. See <plat/wakeup-mask.h> 310 311endif 312