mx31pdk: Add MC13783 PMIC support
Add MC13783 PMIC support.
Tested by using the 'date' command, which reads the MC13783 RTC registers:
MX31PDK U-Boot > date
Date: 1970-01-01 (Thursday) Time: 2:22:35
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
diff --git a/board/freescale/mx31pdk/mx31pdk.c b/board/freescale/mx31pdk/mx31pdk.c
index 0e7e0ce..9f8bc53 100644
--- a/board/freescale/mx31pdk/mx31pdk.c
+++ b/board/freescale/mx31pdk/mx31pdk.c
@@ -30,6 +30,8 @@
#include <asm/arch/imx-regs.h>
#include <asm/arch/sys_proto.h>
#include <watchdog.h>
+#include <pmic.h>
+#include <fsl_pmic.h>
DECLARE_GLOBAL_DATA_PTR;
@@ -79,6 +81,16 @@
int board_late_init(void)
{
+ u32 val;
+ struct pmic *p;
+
+ pmic_init();
+ p = get_pmic();
+
+ /* Enable RTC battery */
+ pmic_reg_read(p, REG_POWER_CTL0, &val);
+ pmic_reg_write(p, REG_POWER_CTL0, val | COINCHEN);
+ pmic_reg_write(p, REG_INT_STATUS1, RTCRSTI);
#ifdef CONFIG_HW_WATCHDOG
mxc_hw_watchdog_enable();
#endif