| Message ID | 20180220174944.525-6-ard.biesheuvel@linaro.org |
|---|---|
| State | Superseded |
| Headers | show |
| Series | Add Secure96 mezzanine support | expand |
On Tue, Feb 20, 2018 at 05:49:42PM +0000, Ard Biesheuvel wrote: > Add a driver that describes the Secure96 mezzanine board, and exposes > both the information required to describe it to the OS using a DT overlay, > and to describe it to UEFI itself. > > Contributed-under: TianoCore Contribution Agreement 1.1 > Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> > --- > Platform/NinetySixBoards/Secure96Dxe/Secure96.dts | 76 +++++++ > Platform/NinetySixBoards/Secure96Dxe/Secure96.h | 26 +++ > Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c | 211 ++++++++++++++++++++ > Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf | 67 +++++++ > 4 files changed, 380 insertions(+) > > diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96.dts b/Platform/NinetySixBoards/Secure96Dxe/Secure96.dts > new file mode 100644 > index 000000000000..08f59978c06f > --- /dev/null > +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96.dts > @@ -0,0 +1,76 @@ > +/** @file > + * Copyright (c) 2018, Linaro Limited. All rights reserved. > + * > + * This program and the accompanying materials are licensed and made > + * available under the terms and conditions of the BSD License which > + * accompanies this distribution. The full text of the license may be > + * found at http://opensource.org/licenses/bsd-license.php > + * > + * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, > + * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR > + * IMPLIED. > + */ > + > +#include "Secure96.h" > + > +#define GPIO_PARENT_PLACEHOLDER_PHANDLE 0x0 Since this is likely to be used as a template for future drivers including DT overlays (not just mezzanine), could you over-comment a bit? Could you say "32-bit value filled in by this driver's helper function FixupOverlay() when applying overlay" (if that's correct)? / Leif > + > +/dts-v1/; > +/plugin/; > + > +/ { > + fragment@0 { > + target-path = "I2C_PARENT_PLACEHOLDER_STRING"; > + __overlay__ { > + ATSHA204A_DT_NODENAME { > + compatible = "atmel,atsha204a"; > + reg = <ATSHA204A_SLAVE_ADDRESS>; > + }; > + ATECC508A_DT_NODENAME { > + compatible = "atmel,atecc508a"; > + reg = <ATECC508A_SLAVE_ADDRESS>; > + }; > + }; > + }; > + > + fragment@1 { > + target-path = "SPI_PARENT_PLACEHOLDER_STRING"; > + __overlay__ { > + INFINEON_SLB9670_DT_NODENAME { > + compatible = "infineon,slb9670"; > + reg = <INFINEON_SLB9670_SPI_CS>; > + spi-max-frequency = <22500000>; > + }; > + }; > + }; > + > + fragment@2 { > + target-path = "/"; > + __overlay__ { > + gpio-leds { > + compatible = "gpio-leds"; > + > + secure96-u1 { > + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE > + FixedPcdGet32 (PcdGpioPinG) > + FixedPcdGet32 (PcdGpioPolarity)>; > + }; > + secure96-u2 { > + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE > + FixedPcdGet32 (PcdGpioPinF) > + FixedPcdGet32 (PcdGpioPolarity)>; > + }; > + secure96-u3 { > + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE > + FixedPcdGet32 (PcdGpioPinI) > + FixedPcdGet32 (PcdGpioPolarity)>; > + }; > + secure96-u4 { > + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE > + FixedPcdGet32 (PcdGpioPinH) > + FixedPcdGet32 (PcdGpioPolarity)>; > + }; > + }; > + }; > + }; > +}; > diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96.h b/Platform/NinetySixBoards/Secure96Dxe/Secure96.h > new file mode 100644 > index 000000000000..84b8aed13d1e > --- /dev/null > +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96.h > @@ -0,0 +1,26 @@ > +/** @file > + > + Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR> > + > + This program and the accompanying materials are licensed and made available > + under the terms and conditions of the BSD License which accompanies this > + distribution. The full text of the license may be found at > + http://opensource.org/licenses/bsd-license.php > + > + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, > + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. > +**/ > + > +#ifndef _SECURE96_H_ > +#define _SECURE96_H_ > + > +#define ATSHA204A_SLAVE_ADDRESS 0x60 > +#define ATSHA204A_DT_NODENAME atsha204a@60 > + > +#define ATECC508A_SLAVE_ADDRESS 0x51 > +#define ATECC508A_DT_NODENAME atecc508a@51 > + > +#define INFINEON_SLB9670_SPI_CS 0x0 > +#define INFINEON_SLB9670_DT_NODENAME tpm@0 > + > +#endif // _SECURE96_H_ > diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c > new file mode 100644 > index 000000000000..000f4b4abba4 > --- /dev/null > +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c > @@ -0,0 +1,211 @@ > +/** @file > + 96boards Secure96 mezzanine board DXE driver. > + > + Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR> > + > + This program and the accompanying materials are licensed and made available > + under the terms and conditions of the BSD License which accompanies this > + distribution. The full text of the license may be found at > + http://opensource.org/licenses/bsd-license.php > + > + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, > + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. > +**/ > + > +#include <PiDxe.h> > +#include <libfdt.h> > +#include <Library/BaseLib.h> > +#include <Library/DebugLib.h> > +#include <Library/DxeServicesLib.h> > +#include <Library/UefiBootServicesTableLib.h> > +#include <Library/UefiLib.h> > +#include <Protocol/LsConnector.h> > +#include <Protocol/Mezzanine.h> > + > +#include "Secure96.h" > + > +STATIC CONST UINT32 mI2cAtmelSha204aSlaveAddress[] = { > + ATSHA204A_SLAVE_ADDRESS, > + > + // > + // The Atmel AtSha204a has an annoying 'wake' mode where it will only wake > + // up if SDA is held low for a certain amount of time. Attempting to access > + // a device at address 0x0 at 100 kHz should be sufficient to create this > + // wake condition, so add address 0x0 to the slave addresses. > + // > + 0 > +}; > + > +STATIC CONST EFI_I2C_DEVICE mI2c0Devices[] = { > + { > + &gAtSha204aI2cDeviceGuid, // DeviceGuid > + 0, // DeviceIndex > + 0, // HardwareRevision > + 0, // I2C bus configuration > + ARRAY_SIZE (mI2cAtmelSha204aSlaveAddress), // SlaveAddressCount > + mI2cAtmelSha204aSlaveAddress // SlaveAddressArray > + } > +}; > + > +STATIC CONST CHAR8 mLedNodes[][46] = { > + "/fragment@2/__overlay__/gpio-leds/secure96-u1", > + "/fragment@2/__overlay__/gpio-leds/secure96-u2", > + "/fragment@2/__overlay__/gpio-leds/secure96-u3", > + "/fragment@2/__overlay__/gpio-leds/secure96-u4", > +}; > + > +STATIC > +VOID > +SetOverlayFragmentTarget ( > + VOID *Overlay, > + CONST CHAR8 *NodeName, > + CONST CHAR8 *Target > + ) > +{ > + INT32 Node; > + INT32 Err; > + > + Node = fdt_path_offset (Overlay, NodeName); > + ASSERT (Node > 0); > + > + Err = fdt_setprop (Overlay, Node, "target-path", Target, > + AsciiStrLen (Target) + 1); > + if (Err) { > + DEBUG ((DEBUG_ERROR, "%a: fdt_setprop() failed - %a\n", > + __FUNCTION__, fdt_strerror (Err))); > + } > +} > + > +STATIC > +VOID > +FixupOverlay ( > + VOID *Dtb, > + VOID *Overlay > + ) > +{ > + INT32 Node; > + UINT32 GpioPhandle; > + UINTN Idx; > + UINT32 *GpioProp; > + INT32 Err; > + > + // > + // Set the correct GPIO phandle in the LED nodes > + // > + Node = fdt_path_offset (Dtb, FixedPcdGetPtr (PcdGpioParent)); > + ASSERT (Node > 0); > + > + GpioPhandle = fdt_get_phandle (Dtb, Node); > + if (!GpioPhandle) { > + // > + // Node has no phandle yet -> create one > + // > + GpioPhandle = 1 + fdt_get_max_phandle (Dtb); > + ASSERT (GpioPhandle >= 1); > + > + Err = fdt_setprop_u32 (Dtb, Node, "phandle", GpioPhandle); > + if (Err) { > + DEBUG ((DEBUG_ERROR, > + "%a: fdt_setprop_u32(.., .., \"phandle\", 0x%x) failed - %a\n", > + __FUNCTION__, GpioPhandle, fdt_strerror (Err))); > + } > + } > + > + for (Idx = 0; Idx < ARRAY_SIZE (mLedNodes); Idx++) { > + Node = fdt_path_offset (Overlay, mLedNodes[Idx]); > + ASSERT (Node > 0); > + > + GpioProp = fdt_getprop_w (Overlay, Node, "gpios", NULL); > + ASSERT (GpioProp != NULL); > + > + *GpioProp = cpu_to_fdt32 (GpioPhandle); > + } > + > + SetOverlayFragmentTarget (Overlay, "/fragment@0", > + FixedPcdGetPtr (PcdI2c0Parent)); > + > + SetOverlayFragmentTarget (Overlay, "/fragment@1", > + FixedPcdGetPtr (PcdSpiParent)); > +} > + > +/** > + Apply the mezzanine's DT overlay > + > + @param[in] This Pointer to the MEZZANINE_PROTOCOL instance. > + @param[in,out] Dtb Pointer to the device tree blob > + > + @return EFI_SUCCESS Operation succeeded. > + @return other An error has occurred. > +**/ > +STATIC > +EFI_STATUS > +ApplyDeviceTreeOverlay ( > + IN MEZZANINE_PROTOCOL *This, > + IN OUT VOID *Dtb > + ) > +{ > + VOID *Overlay; > + UINTN OverlaySize; > + EFI_STATUS Status; > + INT32 Err; > + > + // > + // Load the raw overlay DTB image from the raw section of this FFS file. > + // > + Status = GetSectionFromFv (&gEfiCallerIdGuid, > + EFI_SECTION_RAW, 0, &Overlay, &OverlaySize); > + ASSERT_EFI_ERROR (Status); > + if (EFI_ERROR (Status)) { > + return EFI_NOT_FOUND; > + } > + > + // > + // Fix up unresolved references in the overlay. > + // > + FixupOverlay (Dtb, Overlay); > + > + // > + // Merge the overlay with the DTB > + // > + Err = fdt_overlay_apply (Dtb, Overlay); > + if (Err) { > + DEBUG ((DEBUG_ERROR, "%a: fdt_overlay_apply() failed - %a\n", > + __FUNCTION__, fdt_strerror (Err))); > + return EFI_NOT_FOUND; > + } > + > + return EFI_SUCCESS; > +} > + > +STATIC MEZZANINE_PROTOCOL mMezzanine = { > + ApplyDeviceTreeOverlay, > + ARRAY_SIZE (mI2c0Devices), > + 0, > + mI2c0Devices, > + NULL, > + NULL, > +}; > + > +EFI_STATUS > +EFIAPI > +Secure96DxeEntryPoint ( > + IN EFI_HANDLE ImageHandle, > + IN EFI_SYSTEM_TABLE *SystemTable > + ) > +{ > + EFI_STATUS Status; > + LS_CONNECTOR_PROTOCOL *LsConnector; > + > + Status = gBS->LocateProtocol (&gNinetySixBoardsLsConnectorProtocolGuid, NULL, > + (VOID **)&LsConnector); > + ASSERT_EFI_ERROR (Status); > + > + if (LsConnector->MezzanineType != MezzanineSecure96) { > + return EFI_NOT_FOUND; > + } > + > + return gBS->InstallProtocolInterface (&ImageHandle, > + &gNinetySixBoardsMezzanineProtocolGuid, > + EFI_NATIVE_INTERFACE, > + &mMezzanine); > +} > diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf > new file mode 100644 > index 000000000000..e5686b9f5382 > --- /dev/null > +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf > @@ -0,0 +1,67 @@ > +## @file > +# > +# Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR> > +# > +# This program and the accompanying materials > +# are licensed and made available under the terms and conditions of the BSD License > +# which accompanies this distribution. The full text of the license may be found at > +# http://opensource.org/licenses/bsd-license.php > +# > +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, > +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. > +# > +## > + > +[Defines] > + INF_VERSION = 0x0001001A > + BASE_NAME = Secure96Dxe > + FILE_GUID = 31519ec4-65f1-4790-b223-aa9330dd75fd > + MODULE_TYPE = DXE_DRIVER > + VERSION_STRING = 1.0 > + ENTRY_POINT = Secure96DxeEntryPoint > + > +[Sources] > + Secure96.dts > + Secure96.h > + Secure96Dxe.c > + > +[Packages] > + EmbeddedPkg/EmbeddedPkg.dec > + MdeModulePkg/MdeModulePkg.dec > + MdePkg/MdePkg.dec > + Platform/NinetySixBoards/NinetySixBoards.dec > + Silicon/Atmel/AtSha204a/AtSha204a.dec > + > +[LibraryClasses] > + BaseLib > + DebugLib > + DxeServicesLib > + FdtLib > + UefiBootServicesTableLib > + UefiDriverEntryPoint > + UefiLib > + > +[Protocols] > + gNinetySixBoardsLsConnectorProtocolGuid ## CONSUMES > + gNinetySixBoardsMezzanineProtocolGuid ## PRODUCES > + > +[Guids] > + gAtSha204aI2cDeviceGuid > + gFdtTableGuid > + > +[FixedPcd] > + gNinetySixBoardsTokenSpaceGuid.PcdGpioParent > + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinF > + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinG > + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinH > + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinI > + gNinetySixBoardsTokenSpaceGuid.PcdGpioPolarity > + gNinetySixBoardsTokenSpaceGuid.PcdI2c0Parent > + gNinetySixBoardsTokenSpaceGuid.PcdSpiParent > + > +[Depex] > + gNinetySixBoardsLsConnectorProtocolGuid > + > +[BuildOptions] > + # dtc emits lots of spurious warnings for overlays > + *_*_*_DTC_FLAGS = -q > -- > 2.11.0 > _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96.dts b/Platform/NinetySixBoards/Secure96Dxe/Secure96.dts new file mode 100644 index 000000000000..08f59978c06f --- /dev/null +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96.dts @@ -0,0 +1,76 @@ +/** @file + * Copyright (c) 2018, Linaro Limited. All rights reserved. + * + * This program and the accompanying materials are licensed and made + * available under the terms and conditions of the BSD License which + * accompanies this distribution. The full text of the license may be + * found at http://opensource.org/licenses/bsd-license.php + * + * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR + * IMPLIED. + */ + +#include "Secure96.h" + +#define GPIO_PARENT_PLACEHOLDER_PHANDLE 0x0 + +/dts-v1/; +/plugin/; + +/ { + fragment@0 { + target-path = "I2C_PARENT_PLACEHOLDER_STRING"; + __overlay__ { + ATSHA204A_DT_NODENAME { + compatible = "atmel,atsha204a"; + reg = <ATSHA204A_SLAVE_ADDRESS>; + }; + ATECC508A_DT_NODENAME { + compatible = "atmel,atecc508a"; + reg = <ATECC508A_SLAVE_ADDRESS>; + }; + }; + }; + + fragment@1 { + target-path = "SPI_PARENT_PLACEHOLDER_STRING"; + __overlay__ { + INFINEON_SLB9670_DT_NODENAME { + compatible = "infineon,slb9670"; + reg = <INFINEON_SLB9670_SPI_CS>; + spi-max-frequency = <22500000>; + }; + }; + }; + + fragment@2 { + target-path = "/"; + __overlay__ { + gpio-leds { + compatible = "gpio-leds"; + + secure96-u1 { + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE + FixedPcdGet32 (PcdGpioPinG) + FixedPcdGet32 (PcdGpioPolarity)>; + }; + secure96-u2 { + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE + FixedPcdGet32 (PcdGpioPinF) + FixedPcdGet32 (PcdGpioPolarity)>; + }; + secure96-u3 { + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE + FixedPcdGet32 (PcdGpioPinI) + FixedPcdGet32 (PcdGpioPolarity)>; + }; + secure96-u4 { + gpios = <GPIO_PARENT_PLACEHOLDER_PHANDLE + FixedPcdGet32 (PcdGpioPinH) + FixedPcdGet32 (PcdGpioPolarity)>; + }; + }; + }; + }; +}; diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96.h b/Platform/NinetySixBoards/Secure96Dxe/Secure96.h new file mode 100644 index 000000000000..84b8aed13d1e --- /dev/null +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96.h @@ -0,0 +1,26 @@ +/** @file + + Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR> + + This program and the accompanying materials are licensed and made available + under the terms and conditions of the BSD License which accompanies this + distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +**/ + +#ifndef _SECURE96_H_ +#define _SECURE96_H_ + +#define ATSHA204A_SLAVE_ADDRESS 0x60 +#define ATSHA204A_DT_NODENAME atsha204a@60 + +#define ATECC508A_SLAVE_ADDRESS 0x51 +#define ATECC508A_DT_NODENAME atecc508a@51 + +#define INFINEON_SLB9670_SPI_CS 0x0 +#define INFINEON_SLB9670_DT_NODENAME tpm@0 + +#endif // _SECURE96_H_ diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c new file mode 100644 index 000000000000..000f4b4abba4 --- /dev/null +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c @@ -0,0 +1,211 @@ +/** @file + 96boards Secure96 mezzanine board DXE driver. + + Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR> + + This program and the accompanying materials are licensed and made available + under the terms and conditions of the BSD License which accompanies this + distribution. The full text of the license may be found at + http://opensource.org/licenses/bsd-license.php + + THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, + WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +**/ + +#include <PiDxe.h> +#include <libfdt.h> +#include <Library/BaseLib.h> +#include <Library/DebugLib.h> +#include <Library/DxeServicesLib.h> +#include <Library/UefiBootServicesTableLib.h> +#include <Library/UefiLib.h> +#include <Protocol/LsConnector.h> +#include <Protocol/Mezzanine.h> + +#include "Secure96.h" + +STATIC CONST UINT32 mI2cAtmelSha204aSlaveAddress[] = { + ATSHA204A_SLAVE_ADDRESS, + + // + // The Atmel AtSha204a has an annoying 'wake' mode where it will only wake + // up if SDA is held low for a certain amount of time. Attempting to access + // a device at address 0x0 at 100 kHz should be sufficient to create this + // wake condition, so add address 0x0 to the slave addresses. + // + 0 +}; + +STATIC CONST EFI_I2C_DEVICE mI2c0Devices[] = { + { + &gAtSha204aI2cDeviceGuid, // DeviceGuid + 0, // DeviceIndex + 0, // HardwareRevision + 0, // I2C bus configuration + ARRAY_SIZE (mI2cAtmelSha204aSlaveAddress), // SlaveAddressCount + mI2cAtmelSha204aSlaveAddress // SlaveAddressArray + } +}; + +STATIC CONST CHAR8 mLedNodes[][46] = { + "/fragment@2/__overlay__/gpio-leds/secure96-u1", + "/fragment@2/__overlay__/gpio-leds/secure96-u2", + "/fragment@2/__overlay__/gpio-leds/secure96-u3", + "/fragment@2/__overlay__/gpio-leds/secure96-u4", +}; + +STATIC +VOID +SetOverlayFragmentTarget ( + VOID *Overlay, + CONST CHAR8 *NodeName, + CONST CHAR8 *Target + ) +{ + INT32 Node; + INT32 Err; + + Node = fdt_path_offset (Overlay, NodeName); + ASSERT (Node > 0); + + Err = fdt_setprop (Overlay, Node, "target-path", Target, + AsciiStrLen (Target) + 1); + if (Err) { + DEBUG ((DEBUG_ERROR, "%a: fdt_setprop() failed - %a\n", + __FUNCTION__, fdt_strerror (Err))); + } +} + +STATIC +VOID +FixupOverlay ( + VOID *Dtb, + VOID *Overlay + ) +{ + INT32 Node; + UINT32 GpioPhandle; + UINTN Idx; + UINT32 *GpioProp; + INT32 Err; + + // + // Set the correct GPIO phandle in the LED nodes + // + Node = fdt_path_offset (Dtb, FixedPcdGetPtr (PcdGpioParent)); + ASSERT (Node > 0); + + GpioPhandle = fdt_get_phandle (Dtb, Node); + if (!GpioPhandle) { + // + // Node has no phandle yet -> create one + // + GpioPhandle = 1 + fdt_get_max_phandle (Dtb); + ASSERT (GpioPhandle >= 1); + + Err = fdt_setprop_u32 (Dtb, Node, "phandle", GpioPhandle); + if (Err) { + DEBUG ((DEBUG_ERROR, + "%a: fdt_setprop_u32(.., .., \"phandle\", 0x%x) failed - %a\n", + __FUNCTION__, GpioPhandle, fdt_strerror (Err))); + } + } + + for (Idx = 0; Idx < ARRAY_SIZE (mLedNodes); Idx++) { + Node = fdt_path_offset (Overlay, mLedNodes[Idx]); + ASSERT (Node > 0); + + GpioProp = fdt_getprop_w (Overlay, Node, "gpios", NULL); + ASSERT (GpioProp != NULL); + + *GpioProp = cpu_to_fdt32 (GpioPhandle); + } + + SetOverlayFragmentTarget (Overlay, "/fragment@0", + FixedPcdGetPtr (PcdI2c0Parent)); + + SetOverlayFragmentTarget (Overlay, "/fragment@1", + FixedPcdGetPtr (PcdSpiParent)); +} + +/** + Apply the mezzanine's DT overlay + + @param[in] This Pointer to the MEZZANINE_PROTOCOL instance. + @param[in,out] Dtb Pointer to the device tree blob + + @return EFI_SUCCESS Operation succeeded. + @return other An error has occurred. +**/ +STATIC +EFI_STATUS +ApplyDeviceTreeOverlay ( + IN MEZZANINE_PROTOCOL *This, + IN OUT VOID *Dtb + ) +{ + VOID *Overlay; + UINTN OverlaySize; + EFI_STATUS Status; + INT32 Err; + + // + // Load the raw overlay DTB image from the raw section of this FFS file. + // + Status = GetSectionFromFv (&gEfiCallerIdGuid, + EFI_SECTION_RAW, 0, &Overlay, &OverlaySize); + ASSERT_EFI_ERROR (Status); + if (EFI_ERROR (Status)) { + return EFI_NOT_FOUND; + } + + // + // Fix up unresolved references in the overlay. + // + FixupOverlay (Dtb, Overlay); + + // + // Merge the overlay with the DTB + // + Err = fdt_overlay_apply (Dtb, Overlay); + if (Err) { + DEBUG ((DEBUG_ERROR, "%a: fdt_overlay_apply() failed - %a\n", + __FUNCTION__, fdt_strerror (Err))); + return EFI_NOT_FOUND; + } + + return EFI_SUCCESS; +} + +STATIC MEZZANINE_PROTOCOL mMezzanine = { + ApplyDeviceTreeOverlay, + ARRAY_SIZE (mI2c0Devices), + 0, + mI2c0Devices, + NULL, + NULL, +}; + +EFI_STATUS +EFIAPI +Secure96DxeEntryPoint ( + IN EFI_HANDLE ImageHandle, + IN EFI_SYSTEM_TABLE *SystemTable + ) +{ + EFI_STATUS Status; + LS_CONNECTOR_PROTOCOL *LsConnector; + + Status = gBS->LocateProtocol (&gNinetySixBoardsLsConnectorProtocolGuid, NULL, + (VOID **)&LsConnector); + ASSERT_EFI_ERROR (Status); + + if (LsConnector->MezzanineType != MezzanineSecure96) { + return EFI_NOT_FOUND; + } + + return gBS->InstallProtocolInterface (&ImageHandle, + &gNinetySixBoardsMezzanineProtocolGuid, + EFI_NATIVE_INTERFACE, + &mMezzanine); +} diff --git a/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf new file mode 100644 index 000000000000..e5686b9f5382 --- /dev/null +++ b/Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf @@ -0,0 +1,67 @@ +## @file +# +# Copyright (c) 2018, Linaro, Ltd. All rights reserved.<BR> +# +# This program and the accompanying materials +# are licensed and made available under the terms and conditions of the BSD License +# which accompanies this distribution. The full text of the license may be found at +# http://opensource.org/licenses/bsd-license.php +# +# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +# +## + +[Defines] + INF_VERSION = 0x0001001A + BASE_NAME = Secure96Dxe + FILE_GUID = 31519ec4-65f1-4790-b223-aa9330dd75fd + MODULE_TYPE = DXE_DRIVER + VERSION_STRING = 1.0 + ENTRY_POINT = Secure96DxeEntryPoint + +[Sources] + Secure96.dts + Secure96.h + Secure96Dxe.c + +[Packages] + EmbeddedPkg/EmbeddedPkg.dec + MdeModulePkg/MdeModulePkg.dec + MdePkg/MdePkg.dec + Platform/NinetySixBoards/NinetySixBoards.dec + Silicon/Atmel/AtSha204a/AtSha204a.dec + +[LibraryClasses] + BaseLib + DebugLib + DxeServicesLib + FdtLib + UefiBootServicesTableLib + UefiDriverEntryPoint + UefiLib + +[Protocols] + gNinetySixBoardsLsConnectorProtocolGuid ## CONSUMES + gNinetySixBoardsMezzanineProtocolGuid ## PRODUCES + +[Guids] + gAtSha204aI2cDeviceGuid + gFdtTableGuid + +[FixedPcd] + gNinetySixBoardsTokenSpaceGuid.PcdGpioParent + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinF + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinG + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinH + gNinetySixBoardsTokenSpaceGuid.PcdGpioPinI + gNinetySixBoardsTokenSpaceGuid.PcdGpioPolarity + gNinetySixBoardsTokenSpaceGuid.PcdI2c0Parent + gNinetySixBoardsTokenSpaceGuid.PcdSpiParent + +[Depex] + gNinetySixBoardsLsConnectorProtocolGuid + +[BuildOptions] + # dtc emits lots of spurious warnings for overlays + *_*_*_DTC_FLAGS = -q
Add a driver that describes the Secure96 mezzanine board, and exposes both the information required to describe it to the OS using a DT overlay, and to describe it to UEFI itself. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> --- Platform/NinetySixBoards/Secure96Dxe/Secure96.dts | 76 +++++++ Platform/NinetySixBoards/Secure96Dxe/Secure96.h | 26 +++ Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.c | 211 ++++++++++++++++++++ Platform/NinetySixBoards/Secure96Dxe/Secure96Dxe.inf | 67 +++++++ 4 files changed, 380 insertions(+) -- 2.11.0 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel