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 SPL_DM_RTC 17 bool "Enable Driver Model for RTC drivers in SPL" 18 depends on SPL_DM 19 help 20 Enable drver model for real-time-clock drivers. The RTC uclass 21 then provides the rtc_get()/rtc_set() interface, delegating to 22 drivers to perform the actual functions. See rtc.h for a 23 description of the API. 24 25config TPL_DM_RTC 26 bool "Enable Driver Model for RTC drivers in TPL" 27 depends on TPL_DM 28 help 29 Enable drver model for real-time-clock drivers. The RTC uclass 30 then provides the rtc_get()/rtc_set() interface, delegating to 31 drivers to perform the actual functions. See rtc.h for a 32 description of the API. 33 34config RTC_PCF2127 35 bool "Enable PCF2127 driver" 36 depends on DM_RTC 37 help 38 The PCF2127 is a CMOS Real Time Clock (RTC) and calendar with an integrated 39 Temperature Compensated Crystal (Xtal) Oscillator (TCXO) and a 32.768 kHz quartz 40 crystal optimized for very high accuracy and very low power consumption. The PCF2127 41 has a selectable I2C-bus or SPI-bus, a backup battery switch-over circuit, a 42 programmable watchdog function, a timestamp function, and many other features. 43 44config RTC_DS1307 45 bool "Enable DS1307 driver" 46 depends on DM_RTC 47 help 48 Support for Dallas Semiconductor (now Maxim) DS1307 and DS1338/9 and 49 compatible Real Time Clock devices. 50 51config RTC_ISL1208 52 bool "Enable ISL1208 driver" 53 depends on DM_RTC 54 help 55 The Renesas (formerly Intersil) ISL1208 is a I2C Real Time Clock (RTC) and 56 calendar with automatic leap year correction, 2-byte battery backed SRAM, 57 automatic power switch-over, alarm function and 15 selectable frequency 58 outputs. 59 60 This driver supports reading and writing the RTC/calendar and detects 61 total power failures. 62 63config RTC_RV3029 64 bool "Enable RV3029 driver" 65 depends on DM_RTC 66 help 67 The MicroCrystal RV3029 is a I2C Real Time Clock (RTC) with 8-byte 68 battery-backed SRAM. 69 70 This driver supports reading and writing the RTC/calendar and the 71 battery-baced SRAM section. 72 73config RTC_RX8010SJ 74 bool "Enable RX8010SJ driver" 75 depends on DM_RTC 76 help 77 Support for Epson RX8010SJ Real Time Clock devices. 78 79config RTC_PL031 80 bool "Enable ARM AMBA PL031 RTC driver" 81 help 82 The ARM PrimeCell Real Time Clock (PL031) is an optional SoC 83 peripheral based on the Advanced Microcontroller Bus Architecture 84 (AMBA). It is emulated in QEMU virtual ARM machines. 85 86config RTC_MV 87 bool "Enable Marvell RTC driver" 88 depends on DM_RTC 89 help 90 Enable Marvell RTC driver. This driver supports the rtc that is present 91 on some Marvell SoCs. 92 93config RTC_S35392A 94 bool "Enable S35392A driver" 95 select BITREVERSE 96 help 97 Enable s35392a driver which provides rtc get and set function. 98 99config RTC_MC146818 100 bool "Enable MC146818 driver" 101 help 102 This is a widely used real-time clock chip originally by Motorola 103 and now available from NXP. It includes a battery-backed real-time 104 clock with a wide array of features and 50 bytes of general-purpose, 105 battery-backed RAM. The driver supports access to the clock and RAM. 106 107config RTC_M41T62 108 bool "Enable M41T62 driver" 109 help 110 Enable driver for ST's M41T62 compatible RTC devices (like RV-4162). 111 It is a serial (I2C) real-time clock (RTC) with alarm. 112 113endmenu 114