MX51EVK has a MC13892 PMIC. Add RTC support.
Tested via 'date' command that reads the PMIC RTC registers:
MX51EVK U-Boot > date
Date: 1970-01-01 (Thursday) Time: 0:40:35
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
#define CONFIG_FSL_PMIC_CLK 2500000
#define CONFIG_FSL_PMIC_MODE (SPI_MODE_0 | SPI_CS_HIGH)
#define CONFIG_FSL_PMIC_BITLEN 32
+#define CONFIG_RTC_MC13XXX
/*
* MMC Configs
#undef CONFIG_CMD_IMLS
+#define CONFIG_CMD_DATE
+
#define CONFIG_BOOTDELAY 3
#define CONFIG_ETHPRIME "FEC0"