On Thu, Jan 25, 2018 at 12:27:33PM +0000, Ard Biesheuvel wrote: > To ensure that the I2C master protocol is installed immediately onto > the handles created by PlatformDxe in its entry point, force the > SynQuacerI2cDxe driver to be loaded before PlatformDxe. These handles > are recursively connected by the DXE core as soon as they appear, and > so ensuring that the I2C master protocol driver is available at this > time will ensure that these handles will be connected to it right away. > > This is useful when implementations of architectural protocols such as > RTC or the EFI variable store, which should become available long before > the ordinary dispatch of UEFI driver model drivers is started at the end > of DXE, are based on I2C. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Ard Biesheuvel <[email protected]>
Reviewed-by: Leif Lindholm <[email protected]> > --- > Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.inf | 2 > +- > Silicon/Socionext/SynQuacer/Drivers/SynQuacerI2cDxe/SynQuacerI2cDxe.inf | 2 > +- > Silicon/Socionext/SynQuacer/SynQuacer.dec | 2 > ++ > 3 files changed, 4 insertions(+), 2 deletions(-) > > diff --git a/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.inf > b/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.inf > index 4d6a1d637922..f075957d7456 100644 > --- a/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.inf > +++ b/Silicon/Socionext/SynQuacer/Drivers/PlatformDxe/PlatformDxe.inf > @@ -17,7 +17,7 @@ > [Defines] > INF_VERSION = 0x0001001A > BASE_NAME = PlatformDxe > - FILE_GUID = ac422cc1-d916-489a-b165-536fdfc633c2 > + FILE_GUID = ac422cc1-d916-489a-b165-536fdfc633c2 # > gSynQuacerPlatformDxeFileGuid > MODULE_TYPE = DXE_DRIVER > VERSION_STRING = 1.0 > ENTRY_POINT = PlatformDxeEntryPoint > diff --git > a/Silicon/Socionext/SynQuacer/Drivers/SynQuacerI2cDxe/SynQuacerI2cDxe.inf > b/Silicon/Socionext/SynQuacer/Drivers/SynQuacerI2cDxe/SynQuacerI2cDxe.inf > index fa715366878c..325816ba0b88 100644 > --- a/Silicon/Socionext/SynQuacer/Drivers/SynQuacerI2cDxe/SynQuacerI2cDxe.inf > +++ b/Silicon/Socionext/SynQuacer/Drivers/SynQuacerI2cDxe/SynQuacerI2cDxe.inf > @@ -56,4 +56,4 @@ [FixedPcd] > gSynQuacerTokenSpaceGuid.PcdI2cReferenceClock > > [Depex] > - TRUE > + BEFORE gSynQuacerPlatformDxeFileGuid > diff --git a/Silicon/Socionext/SynQuacer/SynQuacer.dec > b/Silicon/Socionext/SynQuacer/SynQuacer.dec > index a21f12b5bc32..76529e3c2164 100644 > --- a/Silicon/Socionext/SynQuacer/SynQuacer.dec > +++ b/Silicon/Socionext/SynQuacer/SynQuacer.dec > @@ -25,6 +25,8 @@ [Guids] > gSynQuacerNonDiscoverableI2cMasterGuid = { 0x364ee675, 0x9e44, 0x42b7, { > 0xa5, 0xe4, 0x92, 0x84, 0xdb, 0x85, 0xda, 0x09 } } > gSynQuacerNonDiscoverableRuntimeI2cMasterGuid = { 0x5f35aa9b, 0x8c6f, > 0x4828, { 0xbd, 0x44, 0x7c, 0xc0, 0xeb, 0x2d, 0xfe, 0xb9 } } > > + gSynQuacerPlatformDxeFileGuid = { 0xac422cc1, 0xd916, 0x489a, { 0xb1, > 0x65, 0x53, 0x6f, 0xdf, 0xc6, 0x33, 0xc2 } } > + > [Ppis] > gSynQuacerDramInfoPpiGuid = { 0x3e1d7356, 0xdda4, 0x4b1a, { 0x93, 0x46, > 0xbf, 0x89, 0x1c, 0x86, 0x46, 0xcc } } > > -- > 2.11.0 > _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
