From: Andrei Warkentin <andrey.warken...@gmail.com>
Add a new RPiFirmwareGetModelInstalledMB () call in RpiFirmwareDxe
to return the amount of detected installed RAM on the system (in MB).
Signed-off-by: Pete Batard <p...@akeo.ie>
---
Platform/RaspberryPi/Drivers/RpiFirmwareDxe/RpiFirmwareDxe.c | 29 +++++++++++-
Platform/RaspberryPi/Include/Protocol/RpiFirmware.h | 47
+++++++++++---------
2 files changed, 55 insertions(+), 21 deletions(-)
diff --git a/Platform/RaspberryPi/Drivers/RpiFirmwareDxe/RpiFirmwareDxe.c
b/Platform/RaspberryPi/Drivers/RpiFirmwareDxe/RpiFirmwareDxe.c
index 75826fdc0e53..40c78b5d57cf 100644
--- a/Platform/RaspberryPi/Drivers/RpiFirmwareDxe/RpiFirmwareDxe.c
+++ b/Platform/RaspberryPi/Drivers/RpiFirmwareDxe/RpiFirmwareDxe.c
@@ -606,6 +606,32 @@ RpiFirmwareGetModelName (
}
}
+STATIC
+EFI_STATUS
+EFIAPI
+RPiFirmwareGetModelInstalledMB (
+ OUT UINT32 *InstalledMB
+ )
+{
+ EFI_STATUS Status;
+ UINT32 Revision;
+
+ Status = RpiFirmwareGetModelRevision(&Revision);
+ if (EFI_ERROR(Status)) {
+ DEBUG ((DEBUG_ERROR, "%a: Could not get the board revision: Status ==
%r\n",
+ __FUNCTION__, Status));
+ return EFI_DEVICE_ERROR;
+ }
+
+ //
+ //
www.raspberrypi.org/documentation/hardware/raspberrypi/revision-codes/README.md
+ // Bits [20-22] indicate the amount of memory starting with 256MB (000b)
+ // and doubling in size for each value (001b = 512 MB, 010b = 1GB, etc.)
+ //
+ *InstalledMB = 256 << ((Revision >> 20) & 0x07);
+ return EFI_SUCCESS;
+}
+
STATIC
EFI_STATUS
EFIAPI
@@ -1236,7 +1262,8 @@ STATIC RASPBERRY_PI_FIRMWARE_PROTOCOL
mRpiFirmwareProtocol = {
RpiFirmwareGetFirmwareRevision,
RpiFirmwareGetManufacturerName,
RpiFirmwareGetCpuName,
- RpiFirmwareGetArmMemory
+ RpiFirmwareGetArmMemory,
+ RPiFirmwareGetModelInstalledMB,
};
/**
diff --git a/Platform/RaspberryPi/Include/Protocol/RpiFirmware.h
b/Platform/RaspberryPi/Include/Protocol/RpiFirmware.h
index e3287e3c040f..108becbd3b6d 100644
--- a/Platform/RaspberryPi/Include/Protocol/RpiFirmware.h
+++ b/Platform/RaspberryPi/Include/Protocol/RpiFirmware.h
@@ -115,6 +115,12 @@ EFI_STATUS
UINT32 *Revision
);
+typedef
+EFI_STATUS
+(EFIAPI *GET_MODEL_INSTALLED_MB) (
+ UINT32 *InstalledMB
+ );
+
typedef
CHAR8*
(EFIAPI *GET_MANUFACTURER_NAME) (
@@ -135,26 +141,27 @@ EFI_STATUS
);
typedef struct {
- SET_POWER_STATE SetPowerState;
- GET_MAC_ADDRESS GetMacAddress;
- GET_COMMAND_LINE GetCommandLine;
- GET_CLOCK_RATE GetClockRate;
- GET_CLOCK_RATE GetMaxClockRate;
- GET_CLOCK_RATE GetMinClockRate;
- SET_CLOCK_RATE SetClockRate;
- GET_FB GetFB;
- FREE_FB FreeFB;
- GET_FB_SIZE GetFBSize;
- SET_LED SetLed;
- GET_SERIAL GetSerial;
- GET_MODEL GetModel;
- GET_MODEL_REVISION GetModelRevision;
- GET_MODEL_NAME GetModelName;
- GET_MODEL_FAMILY GetModelFamily;
- GET_FIRMWARE_REVISION GetFirmwareRevision;
- GET_MANUFACTURER_NAME GetManufacturerName;
- GET_CPU_NAME GetCpuName;
- GET_ARM_MEM GetArmMem;
+ SET_POWER_STATE SetPowerState;
+ GET_MAC_ADDRESS GetMacAddress;
+ GET_COMMAND_LINE GetCommandLine;
+ GET_CLOCK_RATE GetClockRate;
+ GET_CLOCK_RATE GetMaxClockRate;
+ GET_CLOCK_RATE GetMinClockRate;
+ SET_CLOCK_RATE SetClockRate;
+ GET_FB GetFB;
+ FREE_FB FreeFB;
+ GET_FB_SIZE GetFBSize;
+ SET_LED SetLed;
+ GET_SERIAL GetSerial;
+ GET_MODEL GetModel;
+ GET_MODEL_REVISION GetModelRevision;
+ GET_MODEL_NAME GetModelName;
+ GET_MODEL_FAMILY GetModelFamily;
+ GET_FIRMWARE_REVISION GetFirmwareRevision;
+ GET_MANUFACTURER_NAME GetManufacturerName;
+ GET_CPU_NAME GetCpuName;
+ GET_ARM_MEM GetArmMem;
+ GET_MODEL_INSTALLED_MB GetModelInstalledMB;
} RASPBERRY_PI_FIRMWARE_PROTOCOL;
extern EFI_GUID gRaspberryPiFirmwareProtocolGuid;
--
2.21.0.windows.1
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