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_RX8010SJ 64 bool "Enable RX8010SJ driver" 65 depends on DM_RTC 66 help 67 Support for Epson RX8010SJ Real Time Clock devices. 68 69config RTC_PL031 70 bool "Enable ARM AMBA PL031 RTC driver" 71 help 72 The ARM PrimeCell Real Time Clock (PL031) is an optional SoC 73 peripheral based on the Advanced Microcontroller Bus Architecture 74 (AMBA). It is emulated in QEMU virtual ARM machines. 75 76config RTC_MV 77 bool "Enable Marvell RTC driver" 78 depends on DM_RTC 79 help 80 Enable Marvell RTC driver. This driver supports the rtc that is present 81 on some Marvell SoCs. 82 83config RTC_S35392A 84 bool "Enable S35392A driver" 85 select BITREVERSE 86 help 87 Enable s35392a driver which provides rtc get and set function. 88 89config RTC_MC146818 90 bool "Enable MC146818 driver" 91 help 92 This is a widely used real-time clock chip originally by Motorola 93 and now available from NXP. It includes a battery-backed real-time 94 clock with a wide array of features and 50 bytes of general-purpose, 95 battery-backed RAM. The driver supports access to the clock and RAM. 96 97endmenu 98