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| author | Nikita Kiryanov <nikita@compulab.co.il> | 2016-02-19 19:19:47 +0200 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2016-02-24 18:44:08 -0500 |
| commit | dccaaaeb990828573dfa242dfc6c29851d38e32c (patch) | |
| tree | be93942be22a2a32214080c96e921a65ddf7a0aa /board | |
| parent | 9bcfca123cbcf73234ba5b82e62d189d536d1ef2 (diff) | |
| download | u-boot-imx-dccaaaeb990828573dfa242dfc6c29851d38e32c.zip u-boot-imx-dccaaaeb990828573dfa242dfc6c29851d38e32c.tar.gz u-boot-imx-dccaaaeb990828573dfa242dfc6c29851d38e32c.tar.bz2 | |
arm: am437x: cm-t43: set tps fseal bit
Set TPS65218 FSEAL bit to 1 so that RTC could be powered using on-board
3V battery. This is necessary so that time and date will survive reboots and
power offs.
Cc: Tom Rini <trini@konsulko.com>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Reviewed-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'board')
| -rw-r--r-- | board/compulab/cm_t43/cm_t43.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/board/compulab/cm_t43/cm_t43.c b/board/compulab/cm_t43/cm_t43.c index 445b609..0d5da6f 100644 --- a/board/compulab/cm_t43/cm_t43.c +++ b/board/compulab/cm_t43/cm_t43.c @@ -23,11 +23,18 @@ static struct ctrl_dev *cdev = (struct ctrl_dev *)CTRL_DEVICE_BASE; int power_init_board(void) { struct pmic *p; + uchar tps_status = 0; power_tps65218_init(I2C_PMIC); p = pmic_get("TPS65218_PMIC"); - if (p && !pmic_probe(p)) + if (p && !pmic_probe(p)) { puts("PMIC: TPS65218\n"); + /* We don't care if fseal is locked, but we do need it set */ + tps65218_lock_fseal(); + tps65218_reg_read(TPS65218_STATUS, &tps_status); + if (!(tps_status & TPS65218_FSEAL)) + printf("WARNING: RTC not backed by battery!\n"); + } return 0; } |