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Linux/arch/arm/plat-omap/Kconfig

  1 if ARCH_OMAP
  2 
  3 menu "TI OMAP Common Features"
  4 
  5 config ARCH_OMAP_OTG
  6         bool
  7 
  8 comment "OMAP Feature Selections"
  9 
 10 config OMAP_DEBUG_DEVICES
 11         bool
 12         help
 13           For debug cards on TI reference boards.
 14 
 15 config OMAP_DEBUG_LEDS
 16         def_bool y if NEW_LEDS
 17         depends on OMAP_DEBUG_DEVICES
 18         select LEDS_CLASS
 19 
 20 config POWER_AVS_OMAP
 21         bool "AVS(Adaptive Voltage Scaling) support for OMAP IP versions 1&2"
 22         depends on POWER_AVS && (ARCH_OMAP3 || ARCH_OMAP4) && PM
 23         select POWER_SUPPLY
 24         help
 25           Say Y to enable AVS(Adaptive Voltage Scaling)
 26           support on OMAP containing the version 1 or
 27           version 2 of the SmartReflex IP.
 28           V1 is the 65nm version used in OMAP3430.
 29           V2 is the update for the 45nm version of the IP used in OMAP3630
 30           and OMAP4430
 31 
 32           Please note, that by default SmartReflex is only
 33           initialized and not enabled. To enable the automatic voltage
 34           compensation for vdd mpu and vdd core from user space,
 35           user must write 1 to
 36                 /debug/smartreflex/sr_<X>/autocomp,
 37           where X is mpu_iva or core for OMAP3.
 38           Optionally autocompensation can be enabled in the kernel
 39           by default during system init via the enable_on_init flag
 40           which an be passed as platform data to the smartreflex driver.
 41 
 42 config POWER_AVS_OMAP_CLASS3
 43         bool "Class 3 mode of Smartreflex Implementation"
 44         depends on POWER_AVS_OMAP && TWL4030_CORE
 45         help
 46           Say Y to enable Class 3 implementation of Smartreflex
 47 
 48           Class 3 implementation of Smartreflex employs continuous hardware
 49           voltage calibration.
 50 
 51 config OMAP_RESET_CLOCKS
 52         bool "Reset unused clocks during boot"
 53         depends on ARCH_OMAP
 54         help
 55           Say Y if you want to reset unused clocks during boot.
 56           This option saves power, but assumes all drivers are
 57           using the clock framework. Broken drivers that do not
 58           yet use clock framework may not work with this option.
 59           If you are booting from another operating system, you
 60           probably do not want this option enabled until your
 61           device drivers work properly.
 62 
 63 config OMAP_MUX
 64         bool "OMAP multiplexing support"
 65         depends on ARCH_OMAP
 66         default y
 67         help
 68           Pin multiplexing support for OMAP boards. If your bootloader
 69           sets the multiplexing correctly, say N. Otherwise, or if unsure,
 70           say Y.
 71 
 72 config OMAP_MUX_DEBUG
 73         bool "Multiplexing debug output"
 74         depends on OMAP_MUX
 75         help
 76           Makes the multiplexing functions print out a lot of debug info.
 77           This is useful if you want to find out the correct values of the
 78           multiplexing registers.
 79 
 80 config OMAP_MUX_WARNINGS
 81         bool "Warn about pins the bootloader didn't set up"
 82         depends on OMAP_MUX
 83         default y
 84         help
 85           Choose Y here to warn whenever driver initialization logic needs
 86           to change the pin multiplexing setup.  When there are no warnings
 87           printed, it's safe to deselect OMAP_MUX for your product.
 88 
 89 config OMAP_MPU_TIMER
 90         bool "Use mpu timer"
 91         depends on ARCH_OMAP1
 92         help
 93           Select this option if you want to use the OMAP mpu timer. This
 94           timer provides more intra-tick resolution than the 32KHz timer,
 95           but consumes more power.
 96 
 97 config OMAP_32K_TIMER
 98         bool "Use 32KHz timer"
 99         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
100         default y if (ARCH_OMAP16XX || ARCH_OMAP2PLUS)
101         help
102           Select this option if you want to enable the OMAP 32KHz timer.
103           This timer saves power compared to the OMAP_MPU_TIMER, and has
104           support for no tick during idle. The 32KHz timer provides less
105           intra-tick resolution than OMAP_MPU_TIMER. The 32KHz timer is
106           currently only available for OMAP16XX, 24XX, 34XX, OMAP4/5 and DRA7XX.
107 
108           On OMAP2PLUS this value is only used for CONFIG_HZ and
109           CLOCK_TICK_RATE compile time calculation.
110           The actual timer selection is done in the board file
111           through the (DT_)MACHINE_START structure.
112 
113 
114 config OMAP3_L2_AUX_SECURE_SAVE_RESTORE
115         bool "OMAP3 HS/EMU save and restore for L2 AUX control register"
116         depends on ARCH_OMAP3 && PM
117         default n
118         help
119           Without this option, L2 Auxiliary control register contents are
120           lost during off-mode entry on HS/EMU devices. This feature
121           requires support from PPA / boot-loader in HS/EMU devices, which
122           currently does not exist by default.
123 
124 config OMAP3_L2_AUX_SECURE_SERVICE_SET_ID
125         int "Service ID for the support routine to set L2 AUX control"
126         depends on OMAP3_L2_AUX_SECURE_SAVE_RESTORE
127         default 43
128         help
129           PPA routine service ID for setting L2 auxiliary control register.
130 
131 config OMAP_DM_TIMER
132         bool "Use dual-mode timer"
133         depends on ARCH_OMAP16XX || ARCH_OMAP2PLUS
134         help
135          Select this option if you want to use OMAP Dual-Mode timers.
136 
137 config OMAP_SERIAL_WAKE
138         bool "Enable wake-up events for serial ports"
139         depends on ARCH_OMAP1 && OMAP_MUX
140         default y
141         help
142           Select this option if you want to have your system wake up
143           to data on the serial RX line. This allows you to wake the
144           system from serial console.
145 
146 choice
147         prompt "OMAP PM layer selection"
148         depends on ARCH_OMAP
149         default OMAP_PM_NOOP
150 
151 config OMAP_PM_NOOP
152         bool "No-op/debug PM layer"
153 
154 endchoice
155 
156 endmenu
157 
158 endif

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