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 ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX 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_HWMON 164 bool 165 help 166 Compile in platform device definitions for HWMON 167 168config S3C_DEV_I2C1 169 bool 170 help 171 Compile in platform device definitions for I2C channel 1 172 173config S3C_DEV_I2C2 174 bool 175 help 176 Compile in platform device definitions for I2C channel 2 177 178config S3C_DEV_FB 179 bool 180 help 181 Compile in platform device definition for framebuffer 182 183config S3C_DEV_USB_HOST 184 bool 185 help 186 Compile in platform device definition for USB host. 187 188config S3C_DEV_USB_HSOTG 189 bool 190 help 191 Compile in platform device definition for USB high-speed OtG 192 193config S3C_DEV_WDT 194 bool 195 default y if ARCH_S3C2410 196 help 197 Complie in platform device definition for Watchdog Timer 198 199config S3C_DEV_NAND 200 bool 201 help 202 Compile in platform device definition for NAND controller 203 204config S3C_DEV_ONENAND 205 bool 206 help 207 Compile in platform device definition for OneNAND controller 208 209config S3C_DEV_RTC 210 bool 211 help 212 Complie in platform device definition for RTC 213 214config SAMSUNG_DEV_ADC 215 bool 216 help 217 Compile in platform device definition for ADC controller 218 219config S3C64XX_DEV_SPI 220 bool 221 help 222 Compile in platform device definitions for S3C64XX's type 223 SPI controllers. 224 225config SAMSUNG_DEV_TS 226 bool 227 help 228 Common in platform device definitions for touchscreen device 229 230# DMA 231 232config S3C_DMA 233 bool 234 help 235 Internal configuration for S3C DMA core 236 237config S3C_PL330_DMA 238 bool 239 select PL330 240 help 241 S3C DMA API Driver for PL330 DMAC. 242 243comment "Power management" 244 245config SAMSUNG_PM_DEBUG 246 bool "S3C2410 PM Suspend debug" 247 depends on PM 248 help 249 Say Y here if you want verbose debugging from the PM Suspend and 250 Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> 251 for more information. 252 253config S3C_PM_DEBUG_LED_SMDK 254 bool "SMDK LED suspend/resume debugging" 255 depends on PM && (MACH_SMDK6410) 256 help 257 Say Y here to enable the use of the SMDK LEDs on the baseboard 258 for debugging of the state of the suspend and resume process. 259 260 Note, this currently only works for S3C64XX based SMDK boards. 261 262config SAMSUNG_PM_CHECK 263 bool "S3C2410 PM Suspend Memory CRC" 264 depends on PM && CRC32 265 help 266 Enable the PM code's memory area checksum over sleep. This option 267 will generate CRCs of all blocks of memory, and store them before 268 going to sleep. The blocks are then checked on resume for any 269 errors. 270 271 Note, this can take several seconds depending on memory size 272 and CPU speed. 273 274 See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> 275 276config SAMSUNG_PM_CHECK_CHUNKSIZE 277 int "S3C2410 PM Suspend CRC Chunksize (KiB)" 278 depends on PM && SAMSUNG_PM_CHECK 279 default 64 280 help 281 Set the chunksize in Kilobytes of the CRC for checking memory 282 corruption over suspend and resume. A smaller value will mean that 283 the CRC data block will take more memory, but wil identify any 284 faults with better precision. 285 286 See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt> 287 288config SAMSUNG_WAKEMASK 289 bool 290 depends on PM 291 help 292 Compile support for wakeup-mask controls found on the S3C6400 293 and above. This code allows a set of interrupt to wakeup-mask 294 mappings. See <plat/wakeup-mask.h> 295 296endif 297