1# 2# RTC drivers configuration 3# 4 5menu "Real Time Clock" 6 7config DM_RTC 8 bool "Enable Driver Model for RTC drivers" 9 depends on DM 10 help 11 Enable drver model for real-time-clock drivers. The RTC uclass 12 then provides the rtc_get()/rtc_set() interface, delegating to 13 drivers to perform the actual functions. See rtc.h for a 14 description of the API. 15 16config RTC_PCF2127 17 bool "Enable PCF2127 driver" 18 depends on DM_RTC 19 help 20 The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated 21 Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz 22 crystal optimized for very high accuracy and very low power consumption. The PCF2127 23 has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a 24 programmable watchdog function, a timestamp function, and many other features. 25 26config RTC_DS1307 27 bool "Enable DS1307 driver" 28 depends on DM_RTC 29 help 30 Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and 31 compatible Real Time Clock devices. 32 33config RTC_ISL1208 34 bool "Enable ISL1208 driver" 35 depends on DM_RTC 36 help 37 The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and 38 calendar with automatic leap year correction, 2-byte battery backed SRAM, 39 automatic power switch-over, alarm function and 15 selectable frequency 40 outputs. 41 42 This driver supports reading and writing the RTC/calendar and detects 43 total power failures. 44 45config RTC_RX8010SJ 46 bool "Enable RX8010SJ driver" 47 depends on DM_RTC 48 help 49 Support for Epson RX8010SJ Real Time Clock devices. 50 51config RTC_PL031 52 bool "Enable ARM AMBA PL031 RTC driver" 53 help 54 The ARM PrimeCell Real Time Clock (PL031) is an optional SoC 55 peripheral based on the Advanced Microcontroller Bus Architecture 56 (AMBA). It is emulated in QEMU virtual ARM machines. 57 58config RTC_MV 59 bool "Enable Marvell RTC driver" 60 depends on DM_RTC 61 help 62 Enable Marvell RTC driver. This driver supports the rtc that is present 63 on some Marvell SoCs. 64 65config RTC_S35392A 66 bool "Enable S35392A driver" 67 select BITREVERSE 68 help 69 Enable s35392a driver which provides rtc get and set function. 70 71config RTC_MC146818 72 bool "Enable MC146818 driver" 73 help 74 This is a widely used real-time clock chip originally by Motorola 75 and now available from NXP. It includes a battery-backed real-time 76 clock with a wide array of features and 50 bytes of general-purpose, 77 battery-backed RAM. The driver supports access to the clock and RAM. 78 79endmenu 80