We intend to allow the OS to update the RTC after exit boot services.
THis means we need to assure that the I2C IO map is marked correctly.
Signed-off-by: Jeremy Linton <jeremy.lin...@arm.com>
---
Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
index 377ef438ff..fec8f63ea8 100644
--- a/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
+++ b/Platform/RaspberryPi/Drivers/ConfigDxe/ConfigDxe.c
@@ -505,6 +505,7 @@ ApplyVariables (
}
if (mModelFamily == 4) {
+ // add memoryspaces for the runtime flash/variable store
Status = gDS->AddMemorySpace (EfiGcdMemoryTypeMemoryMappedIo,
BCM2836_SPI0_BASE_ADDRESS,
SIZE_4KB, EFI_MEMORY_UC |
EFI_MEMORY_RUNTIME);
ASSERT_EFI_ERROR (Status);
@@ -517,6 +518,13 @@ ApplyVariables (
Status = gDS->SetMemorySpaceAttributes (GPIO_BASE_ADDRESS,
SIZE_4KB,
EFI_MEMORY_UC|EFI_MEMORY_RUNTIME);
+ // add memoryspace for the runtime rtc/i2c
+ Status = gDS->AddMemorySpace (EfiGcdMemoryTypeMemoryMappedIo,
BCM2836_I2C1_BASE_ADDRESS,
+ SIZE_4KB, EFI_MEMORY_UC |
EFI_MEMORY_RUNTIME);
+ ASSERT_EFI_ERROR (Status);
+ Status = gDS->SetMemorySpaceAttributes (BCM2836_I2C1_BASE_ADDRESS,
+ SIZE_4KB,
EFI_MEMORY_UC|EFI_MEMORY_RUNTIME);
+
ASSERT_EFI_ERROR (Status);
}
--
2.43.0
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