From: Tang Yuantian yuantian.tang@freescale.com
T104xrdb has several sleep management signals that are used for deep sleep. They are enabled by OS to enter deep sleep and should be disabled by u-boot when cores wake up.
Signed-off-by: Tang Yuantian Yuantian.Tang@freescale.com --- board/freescale/t104xrdb/t104xrdb.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/board/freescale/t104xrdb/t104xrdb.c b/board/freescale/t104xrdb/t104xrdb.c index 24b8dba..c87519c 100644 --- a/board/freescale/t104xrdb/t104xrdb.c +++ b/board/freescale/t104xrdb/t104xrdb.c @@ -108,6 +108,8 @@ void ft_board_setup(void *blob, bd_t *bd) #ifdef CONFIG_DEEP_SLEEP void board_mem_sleep_setup(void) { + /* does not provide HW signals for power management */ + CPLD_WRITE(misc_ctl_status, (CPLD_READ(misc_ctl_status) & ~0x40)); /* Disable MCKE isolation */ gpio_set_value(2, 0); udelay(1);