[edk2-devel] [edk2-platforms PATCH 6/6] Marvell: RealTimeClockLib: Rework LibGetWakeupTime/LibSetWakeupTime
Marcin Wojtas
mw at semihalf.com
Mon May 24 05:29:19 UTC 2021
Apply multiple fixes to the Marvell RealTimeClockLib wakeup
library callbacks.
LibGetWakeupTime:
* Add input parameters validation
* Fix 'Pending' value check
LibSetWakeupTime:
* Allow disabling the wakeup timer regardless the input 'Time' value
* Use more generic 'Time' value verification, which is more strict
than the replaced custom one.
* Use proper alarm mask for 'Pending' signalling
With above the ACS3.0 FWTS and SCT timer tests pass cleanly.
Signed-off-by: Marcin Wojtas <mw at semihalf.com>
---
Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.h | 2 +-
Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.c | 29 ++++++++++----------
2 files changed, 16 insertions(+), 15 deletions(-)
diff --git a/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.h b/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.h
index 7fa1d092e4..c33e63d107 100644
--- a/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.h
+++ b/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.h
@@ -17,7 +17,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
#define RTC_BRIDGE_TIMING_CTRL0_REG_OFFS 0x80
#define RTC_BRIDGE_TIMING_CTRL1_REG_OFFS 0x84
#define RTC_IRQ_STATUS_REG 0x90
-#define RTC_IRQ_ALARM_MASK 0x1
+#define RTC_IRQ_ALARM_MASK 0x2
#define RTC_WRITE_PERIOD_DELAY_MASK 0xFFFF
#define RTC_WRITE_PERIOD_DELAY_DEFAULT 0x3FF
#define RTC_WRITE_SETUP_DELAY_MASK (0xFFFF << 16)
diff --git a/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.c b/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.c
index a48d44ed83..49c9385d53 100644
--- a/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.c
+++ b/Silicon/Marvell/Armada7k8k/Library/RealTimeClockLib/RealTimeClockLib.c
@@ -140,11 +140,15 @@ LibGetWakeupTime (
{
UINT32 WakeupSeconds;
+ if (Time == NULL || Enabled == NULL || Pending == NULL) {
+ return EFI_INVALID_PARAMETER;
+ }
+
*Enabled = MmioRead32 (mArmadaRtcBase + RTC_IRQ_2_CONFIG_REG) & RTC_IRQ_ALARM_EN;
*Pending = MmioRead32 (mArmadaRtcBase + RTC_IRQ_STATUS_REG) & RTC_IRQ_ALARM_MASK;
// Ack pending alarm
- if (Pending) {
+ if (*Pending) {
MmioWrite32 (mArmadaRtcBase + RTC_IRQ_STATUS_REG, RTC_IRQ_ALARM_MASK);
}
@@ -176,14 +180,14 @@ LibSetWakeupTime (
{
UINTN WakeupSeconds;
- //
- // Because the Armada RTC uses a 32-bit counter for seconds,
- // the maximum time span is just over 136 years.
- // Time is stored in Unix Epoch format, so it starts in 1970,
- // Therefore it can not exceed the year 2106.
- //
- if ((Time->Year < 1970) || (Time->Year >= 2106)) {
- return EFI_UNSUPPORTED;
+ // Handle timer disabling case
+ if (!Enabled) {
+ RtcDelayedWrite (RTC_IRQ_2_CONFIG_REG, 0);
+ return EFI_SUCCESS;
+ }
+
+ if (Time == NULL || !IsTimeValid (Time)) {
+ return EFI_INVALID_PARAMETER;
}
// Convert time to raw seconds
@@ -195,11 +199,8 @@ LibSetWakeupTime (
// Issue delayed write to alarm register
RtcDelayedWrite (RTC_ALARM_2_REG, (UINT32)WakeupSeconds);
- if (Enabled) {
- MmioWrite32 (mArmadaRtcBase + RTC_IRQ_2_CONFIG_REG, RTC_IRQ_ALARM_EN);
- } else {
- MmioWrite32 (mArmadaRtcBase + RTC_IRQ_2_CONFIG_REG, 0);
- }
+ // Enable wakeup timer
+ RtcDelayedWrite (RTC_IRQ_2_CONFIG_REG, RTC_IRQ_ALARM_EN);
return EFI_SUCCESS;
}
--
2.29.0
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