Commit Graph

4 Commits

Author SHA1 Message Date
Anson Huang a3094fc1a1 rtc: imx-sc: add rtc alarm support
Add i.MX system controller RTC alarm support, the RTC alarm
is implemented via SIP(silicon provider) runtime service call
and ARM-Trusted-Firmware will communicate with system controller
via MU(message unit) IPC to set RTC alarm. When RTC alarm fires,
system controller will generate a common MU irq event and notify
system controller RTC driver to handle the irq event.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Reviewed-by: Dong Aisheng <aisheng.dong@nxp.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-06-01 23:17:10 +02:00
Alexandre Belloni 30adde6b18 rtc: imx-sc: use rtc_time64_to_tm
The imx-sc driver properly sets range_max, use rtc_time64_to_tm() instead
of the deprecated rtc_time_to_tm()

Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-03-03 22:12:38 +01:00
Anson Huang 13a929f38a rtc: imx-sc: add rtc set time support
This patch adds i.MX system controller RTC set time support, the
RTC set time is implemented via SIP(silicon provider) runtime
service call and ARM-Trusted-Firmware will communicate with system
controller via MU(message unit) IPC to set RTC time.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2019-02-07 20:45:39 +01:00
Anson Huang e01b578195 rtc: add i.MX system controller RTC support
i.MX8QXP is an ARMv8 SoC which has a Cortex-M4 system controller
inside, the system controller is in charge of controlling power,
clock and secure rtc etc..

This patch adds i.MX system controller RTC driver support,
Linux kernel has to communicate with system controller via MU
(message unit) IPC to set/get RTC time and other alarm functions,
since the RTC set time needs to be done in secure EL3 mode (required
by system controller firmware) and alarm functions needs to be done
with general MU IRQ handle, these depend on other components which
are NOT ready, so this patch ONLY enables the RTC time read.

Signed-off-by: Anson Huang <Anson.Huang@nxp.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2018-12-20 12:47:40 +01:00