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380d4f787a
Add Kconfig options so that the RTC can be used in SPL and TPL. This is helpful for accessing the contents of CMOS RAM, for example. Signed-off-by: Simon Glass <sjg@chromium.org>
97 lines
3 KiB
Text
97 lines
3 KiB
Text
#
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# RTC drivers configuration
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#
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menu "Real Time Clock"
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config DM_RTC
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bool "Enable Driver Model for RTC drivers"
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depends on DM
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help
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Enable drver model for real-time-clock drivers. The RTC uclass
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then provides the rtc_get()/rtc_set() interface, delegating to
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drivers to perform the actual functions. See rtc.h for a
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description of the API.
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config SPL_DM_RTC
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bool "Enable Driver Model for RTC drivers in SPL"
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depends on SPL_DM
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help
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Enable drver model for real-time-clock drivers. The RTC uclass
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then provides the rtc_get()/rtc_set() interface, delegating to
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drivers to perform the actual functions. See rtc.h for a
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description of the API.
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config TPL_DM_RTC
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bool "Enable Driver Model for RTC drivers in TPL"
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depends on TPL_DM
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help
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Enable drver model for real-time-clock drivers. The RTC uclass
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then provides the rtc_get()/rtc_set() interface, delegating to
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drivers to perform the actual functions. See rtc.h for a
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description of the API.
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config RTC_PCF2127
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bool "Enable PCF2127 driver"
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depends on DM_RTC
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help
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The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated
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Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz
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crystal optimized for very high accuracy and very low power consumption. The PCF2127
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has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a
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programmable watchdog function, a timestamp function, and many other features.
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config RTC_DS1307
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bool "Enable DS1307 driver"
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depends on DM_RTC
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help
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Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and
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compatible Real Time Clock devices.
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config RTC_ISL1208
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bool "Enable ISL1208 driver"
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depends on DM_RTC
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help
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The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and
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calendar with automatic leap year correction, 2-byte battery backed SRAM,
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automatic power switch-over, alarm function and 15 selectable frequency
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outputs.
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This driver supports reading and writing the RTC/calendar and detects
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total power failures.
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config RTC_RX8010SJ
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bool "Enable RX8010SJ driver"
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depends on DM_RTC
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help
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Support for Epson RX8010SJ Real Time Clock devices.
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config RTC_PL031
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bool "Enable ARM AMBA PL031 RTC driver"
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help
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The ARM PrimeCell Real Time Clock (PL031) is an optional SoC
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peripheral based on the Advanced Microcontroller Bus Architecture
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(AMBA). It is emulated in QEMU virtual ARM machines.
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config RTC_MV
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bool "Enable Marvell RTC driver"
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depends on DM_RTC
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help
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Enable Marvell RTC driver. This driver supports the rtc that is present
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on some Marvell SoCs.
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config RTC_S35392A
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bool "Enable S35392A driver"
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select BITREVERSE
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help
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Enable s35392a driver which provides rtc get and set function.
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config RTC_MC146818
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bool "Enable MC146818 driver"
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help
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This is a widely used real-time clock chip originally by Motorola
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and now available from NXP. It includes a battery-backed real-time
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clock with a wide array of features and 50 bytes of general-purpose,
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battery-backed RAM. The driver supports access to the clock and RAM.
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endmenu
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