1 # arch/arm/plat-samsung/Kconfig
3 # Copyright 2009 Simtec Electronics
9 depends on ARCH_S3C2410 || ARCH_S3C24A0 || ARCH_S3C64XX || ARCH_S5PC1XX
13 Base platform code for all Samsung SoC based systems
19 comment "Boot options"
21 config S3C_BOOT_WATCHDOG
22 bool "S3C Initialisation watchdog"
23 depends on S3C2410_WATCHDOG
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.
29 config S3C_BOOT_ERROR_RESET
30 bool "S3C Reboot on decompression error"
32 Say y here to use the watchdog to reset the system if the
33 kernel decompressor detects an error during decompression.
35 config S3C_BOOT_UART_FORCE_FIFO
36 bool "Force UART FIFO on during boot process"
39 Say Y here to force the UART FIFOs on during the kernel
43 config S3C_LOWLEVEL_UART_PORT
44 int "S3C UART to use for low-level messages"
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.
57 Select the clock code for the clksrc implementation
58 used by newer systems such as the S3C64XX.
60 # options for IRQ support
62 config SAMSUNG_IRQ_VIC_TIMER
65 Internal configuration to build the VIC timer interrupt code.
67 config SAMSUNG_IRQ_UART
70 Internal configuration to build the IRQ UART demux code.
72 # options for gpio configuration support
74 config SAMSUNG_GPIOLIB_4BIT
77 GPIOlib file contains the 4 bit modification functions for gpio
78 configuration. GPIOlib shall be compiled only for S3C64XX and S5P
81 config S3C_GPIO_CFG_S3C24XX
84 Internal configuration to enable S3C24XX style GPIO configuration
87 config S3C_GPIO_CFG_S3C64XX
90 Internal configuration to enable S3C64XX style GPIO configuration
93 config S3C_GPIO_PULL_UPDOWN
96 Internal configuration to enable the correct GPIO pull helper
98 config S3C_GPIO_PULL_DOWN
101 Internal configuration to enable the correct GPIO pull helper
103 config S3C_GPIO_PULL_UP
106 Internal configuration to enable the correct GPIO pull helper
108 config S5P_GPIO_DRVSTR
111 Internal configuration to get and set correct GPIO driver strength
114 config SAMSUNG_GPIO_EXTRA
115 int "Number of additional GPIO pins"
118 Use additional GPIO space in addition to the GPIO's the SOC
119 provides. This allows expanding the GPIO space for use with
122 config S3C_GPIO_SPACE
123 int "Space between gpio banks"
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
131 config S3C_GPIO_TRACK
134 Internal configuration option to enable the s3c specific gpio
135 chip tracking if the platform requires it.
140 bool "ADC common driver support"
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
146 # device definitions to compile in
151 Compile in platform device definitions for HSMMC code
153 config S3C_DEV_HSMMC1
156 Compile in platform device definitions for HSMMC channel 1
158 config S3C_DEV_HSMMC2
161 Compile in platform device definitions for HSMMC channel 2
166 Compile in platform device definitions for HWMON
171 Compile in platform device definitions for I2C channel 1
176 Compile in platform device definition for framebuffer
178 config S3C_DEV_USB_HOST
181 Compile in platform device definition for USB host.
183 config S3C_DEV_USB_HSOTG
186 Compile in platform device definition for USB high-speed OtG
191 Compile in platform device definition for NAND controller
196 Complie in platform device definition for RTC
198 config SAMSUNG_DEV_ADC
201 Compile in platform device definition for ADC controller
203 config S3C64XX_DEV_SPI
206 Compile in platform device definitions for S3C64XX's type
209 config SAMSUNG_DEV_TS
212 Common in platform device definitions for touchscreen device
219 Internal configuration for S3C DMA core
225 S3C DMA API Driver for PL330 DMAC.
227 comment "Power management"
229 config SAMSUNG_PM_DEBUG
230 bool "S3C2410 PM Suspend debug"
233 Say Y here if you want verbose debugging from the PM Suspend and
234 Resume code. See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
235 for more information.
237 config S3C_PM_DEBUG_LED_SMDK
238 bool "SMDK LED suspend/resume debugging"
239 depends on PM && (MACH_SMDK6410)
241 Say Y here to enable the use of the SMDK LEDs on the baseboard
242 for debugging of the state of the suspend and resume process.
244 Note, this currently only works for S3C64XX based SMDK boards.
246 config SAMSUNG_PM_CHECK
247 bool "S3C2410 PM Suspend Memory CRC"
248 depends on PM && CRC32
250 Enable the PM code's memory area checksum over sleep. This option
251 will generate CRCs of all blocks of memory, and store them before
252 going to sleep. The blocks are then checked on resume for any
255 Note, this can take several seconds depending on memory size
258 See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>
260 config SAMSUNG_PM_CHECK_CHUNKSIZE
261 int "S3C2410 PM Suspend CRC Chunksize (KiB)"
262 depends on PM && SAMSUNG_PM_CHECK
265 Set the chunksize in Kilobytes of the CRC for checking memory
266 corruption over suspend and resume. A smaller value will mean that
267 the CRC data block will take more memory, but wil identify any
268 faults with better precision.
270 See <file:Documentation/arm/Samsung-S3C24XX/Suspend.txt>