board,ge,bx50v3 - rtc time validation

Validate the time at startup:
 - in case rtc error add to kernel command line RTC_ERROR
 - clamp date to 1-Jan-2036

Signed-off-by: Nandor Han <nandor.han@ge.com>
Signed-off-by: Martyn Welch <martyn.welch@collabora.co.uk>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.co.uk>

board/ge/bx50v3/bx50v3.c

@@ -29,6 +29,7 @@
 #include <input.h>
 #include <pwm.h>
 #include <stdlib.h>
+#include "../common/ge_common.h"
 #include "../common/vpd_reader.h"
 #include "../../../drivers/net/e1000.h"
 DECLARE_GLOBAL_DATA_PTR;
@@ -805,6 +806,8 @@ int board_late_init(void)
 	/* board specific pmic init */
 	pmic_init();
 
+	check_time();
+
 	return 0;
 }
 

configs/ge_b850v3_defconfig

@@ -13,6 +13,7 @@ CONFIG_CMD_BOOTZ=y
 # CONFIG_CMD_FPGA is not set
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
+CONFIG_RTC_RX8010SJ=y
 CONFIG_CMD_MMC=y
 CONFIG_CMD_SF=y
 # CONFIG_CMD_NFS is not set

include/configs/ge_bx50v3.h

@@ -120,7 +120,7 @@
 	"setargs=setenv bootargs root=/dev/${rootdev}${partnum} " \
 		"ro rootwait cma=128M " \
 		"bootcause=${bootcause} " \
-		"${quiet} console=${console} " \
+		"${quiet} console=${console} ${rtc_status} " \
 		BX50V3_BOOTARGS_EXTRA "\0" \
 	"doquiet=" \
 		"if ext2load ${dev} ${devnum}:5 0x7000A000 /boot/console; " \
@@ -241,6 +241,10 @@
 #define CONFIG_PCIE_IMX_PERST_GPIO	IMX_GPIO_NR(7, 12)
 #define CONFIG_PCIE_IMX_POWER_GPIO	IMX_GPIO_NR(1, 5)
 
+#define CONFIG_RTC_RX8010SJ
+#define CONFIG_SYS_RTC_BUS_NUM 2
+#define CONFIG_SYS_I2C_RTC_ADDR	0x32
+
 /* I2C Configs */
 #define CONFIG_SYS_I2C
 #define CONFIG_SYS_I2C_MXC