diff options
| author | Marcin Wojtas <mw@semihalf.com> | 2017-10-21 11:40:34 +0200 |
|---|---|---|
| committer | Leif Lindholm <leif.lindholm@linaro.org> | 2017-11-30 15:50:15 +0000 |
| commit | a35f740b6a2902387b46135ac777d71214109eeb (patch) | |
| tree | 732b4cde8ecf7d4cc223e61156799e113904b6ff /Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c | |
| parent | 6813928d6a62e67cf420e2ab72c3226c80121d5a (diff) | |
| download | edk2-platforms-a35f740b6a2902387b46135ac777d71214109eeb.tar.xz | |
Marvell/Drivers: MvSpiFlash: Enable using driver in RT
This patch applies necessary modifications, which allow to use
MvSpiFlash driver in variable support as a runtime service.
Its type is modified to DXE_RUNTIME_DRIVER, as well as
an event is created, which converts the pointers to the
SpiMasterProtocol and its routines. In order to ensure proper
execution of the MvFvbDxe driver, configure initialization
order with Depex entry.
Contributed-under: TianoCore Contribution Agreement 1.1
Signed-off-by: Marcin Wojtas <mw@semihalf.com>
Reviewed-by: Leif Lindholm <leif.lindholm@linaro.org>
Diffstat (limited to 'Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c')
| -rwxr-xr-x | Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c | 58 |
1 files changed, 54 insertions, 4 deletions
diff --git a/Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c b/Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c index 456d9f9bd7..6886d0104a 100755 --- a/Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c +++ b/Platform/Marvell/Drivers/Spi/Devices/MvSpiFlash.c @@ -33,6 +33,7 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *******************************************************************************/
#include "MvSpiFlash.h"
+STATIC EFI_EVENT mMvSpiFlashVirtualAddrChangeEvent;
MARVELL_SPI_MASTER_PROTOCOL *SpiMasterProtocol;
SPI_FLASH_INSTANCE *mSpiFlashInstance;
@@ -503,6 +504,33 @@ MvSpiFlashInitProtocol ( return EFI_SUCCESS;
}
+/**
+ Fixup internal data so that EFI can be call in virtual mode.
+ Call the passed in Child Notify event and convert any pointers in
+ lib to virtual mode.
+
+ @param[in] Event The Event that is being processed
+ @param[in] Context Event Context
+**/
+STATIC
+VOID
+EFIAPI
+MvSpiFlashVirtualNotifyEvent (
+ IN EFI_EVENT Event,
+ IN VOID *Context
+ )
+{
+ //
+ // Convert SpiMasterProtocol callbacks in MvSpiFlashErase and
+ // MvSpiFlashWrite required by runtime variable support.
+ //
+ EfiConvertPointer (0x0, (VOID**)&SpiMasterProtocol->ReadWrite);
+ EfiConvertPointer (0x0, (VOID**)&SpiMasterProtocol->Transfer);
+ EfiConvertPointer (0x0, (VOID**)&SpiMasterProtocol);
+
+ return;
+}
+
EFI_STATUS
EFIAPI
MvSpiFlashEntryPoint (
@@ -522,8 +550,7 @@ MvSpiFlashEntryPoint ( return EFI_DEVICE_ERROR;
}
- mSpiFlashInstance = AllocateZeroPool (sizeof (SPI_FLASH_INSTANCE));
-
+ mSpiFlashInstance = AllocateRuntimeZeroPool (sizeof (SPI_FLASH_INSTANCE));
if (mSpiFlashInstance == NULL) {
DEBUG((DEBUG_ERROR, "SpiFlash: Cannot allocate memory\n"));
return EFI_OUT_OF_RESOURCES;
@@ -540,10 +567,33 @@ MvSpiFlashEntryPoint ( NULL
);
if (EFI_ERROR (Status)) {
- FreePool (mSpiFlashInstance);
DEBUG((DEBUG_ERROR, "SpiFlash: Cannot install SPI flash protocol\n"));
- return EFI_DEVICE_ERROR;
+ goto ErrorInstallProto;
+ }
+
+ //
+ // Register for the virtual address change event
+ //
+ Status = gBS->CreateEventEx (EVT_NOTIFY_SIGNAL,
+ TPL_NOTIFY,
+ MvSpiFlashVirtualNotifyEvent,
+ NULL,
+ &gEfiEventVirtualAddressChangeGuid,
+ &mMvSpiFlashVirtualAddrChangeEvent);
+ if (EFI_ERROR (Status)) {
+ DEBUG ((DEBUG_ERROR, "%a: Failed to register VA change event\n", __FUNCTION__));
+ goto ErrorCreateEvent;
}
return EFI_SUCCESS;
+
+ErrorCreateEvent:
+ gBS->UninstallMultipleProtocolInterfaces (&mSpiFlashInstance->Handle,
+ &gMarvellSpiFlashProtocolGuid,
+ NULL);
+
+ErrorInstallProto:
+ FreePool (mSpiFlashInstance);
+
+ return EFI_SUCCESS;
}
|