3 * Copyright (c) 2013-2015, ARM Limited. All rights reserved.
5 * This program and the accompanying materials
6 * are licensed and made available under the terms and conditions of the BSD License
7 * which accompanies this distribution. The full text of the license may be found at
8 * http://opensource.org/licenses/bsd-license.php
10 * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
15 #include "ArmJunoDxeInternal.h"
16 #include <ArmPlatform.h>
18 #include <IndustryStandard/Pci.h>
19 #include <Protocol/DevicePathFromText.h>
20 #include <Protocol/PciIo.h>
21 #include <Protocol/PciRootBridgeIo.h>
23 #include <Guid/EventGroup.h>
24 #include <Guid/GlobalVariable.h>
26 #include <Library/ArmShellCmdLib.h>
27 #include <Library/AcpiLib.h>
28 #include <Library/BaseMemoryLib.h>
29 #include <Library/DevicePathLib.h>
30 #include <Library/MemoryAllocationLib.h>
31 #include <Library/NonDiscoverableDeviceRegistrationLib.h>
32 #include <Library/UefiRuntimeServicesTableLib.h>
33 #include <Library/IoLib.h>
34 #include <Library/PrintLib.h>
37 // This GUID must match the FILE_GUID in ArmPlatformPkg/ArmJunoPkg/AcpiTables/AcpiTables.inf
38 STATIC CONST EFI_GUID mJunoAcpiTableFile
= { 0xa1dd808e, 0x1e95, 0x4399, { 0xab, 0xc0, 0x65, 0x3c, 0x82, 0xe8, 0x53, 0x0c } };
41 ACPI_HID_DEVICE_PATH AcpiDevicePath
;
42 PCI_DEVICE_PATH PciDevicePath
;
43 EFI_DEVICE_PATH_PROTOCOL EndDevicePath
;
44 } EFI_PCI_ROOT_BRIDGE_DEVICE_PATH
;
46 STATIC CONST EFI_PCI_ROOT_BRIDGE_DEVICE_PATH mPciRootComplexDevicePath
= {
50 { (UINT8
) (sizeof (ACPI_HID_DEVICE_PATH
)),
51 (UINT8
) ((sizeof (ACPI_HID_DEVICE_PATH
)) >> 8) }
57 { HARDWARE_DEVICE_PATH
,
59 { (UINT8
) (sizeof (PCI_DEVICE_PATH
)),
60 (UINT8
) ((sizeof (PCI_DEVICE_PATH
)) >> 8) }
67 END_ENTIRE_DEVICE_PATH_SUBTYPE
,
68 { END_DEVICE_PATH_LENGTH
, 0 }
72 EFI_EVENT mAcpiRegistration
= NULL
;
75 This function reads PCI ID of the controller.
77 @param[in] PciIo PCI IO protocol handle
78 @param[in] PciId Looking for specified PCI ID Vendor/Device
82 ReadMarvellYoukonPciId (
83 IN EFI_PCI_IO_PROTOCOL
*PciIo
,
90 Status
= PciIo
->Pci
.Read (
96 if (EFI_ERROR (Status
)) {
100 if (DevicePciId
!= PciId
) {
101 return EFI_NOT_FOUND
;
108 This function searches for Marvell Yukon NIC on the Juno
109 platform and returns PCI IO protocol handle for the controller.
111 @param[out] PciIo PCI IO protocol handle
115 GetMarvellYukonPciIoProtocol (
116 OUT EFI_PCI_IO_PROTOCOL
**PciIo
120 EFI_HANDLE
*HandleBuffer
;
124 Status
= gBS
->LocateHandleBuffer (
126 &gEfiPciIoProtocolGuid
,
130 if (EFI_ERROR (Status
)) {
134 for (HIndex
= 0; HIndex
< HandleCount
; ++HIndex
) {
135 // If PciIo opened with EFI_OPEN_PROTOCOL_GET_PROTOCOL, the CloseProtocol() is not required
136 Status
= gBS
->OpenProtocol (
137 HandleBuffer
[HIndex
],
138 &gEfiPciIoProtocolGuid
,
142 EFI_OPEN_PROTOCOL_GET_PROTOCOL
);
143 if (EFI_ERROR (Status
)) {
147 Status
= ReadMarvellYoukonPciId (*PciIo
, JUNO_MARVELL_YUKON_ID
);
148 if (EFI_ERROR (Status
)) {
155 gBS
->FreePool (HandleBuffer
);
161 This function restore the original controller attributes
163 @param[in] PciIo PCI IO protocol handle
164 @param[in] PciAttr PCI controller attributes.
165 @param[in] AcpiResDescriptor ACPI 2.0 resource descriptors for the BAR
170 IN EFI_PCI_IO_PROTOCOL
*PciIo
,
176 EfiPciIoAttributeOperationSet
,
183 This function returns PCI MMIO base address for a controller
185 @param[in] PciIo PCI IO protocol handle
186 @param[out] PciRegBase PCI base MMIO address
191 IN EFI_PCI_IO_PROTOCOL
*PciIo
,
192 OUT UINT32
*PciRegBase
196 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*AcpiResDescriptor
;
197 EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*AcpiCurrentDescriptor
;
199 // Marvell Yukon's Bar0 provides base memory address for control registers
200 Status
= PciIo
->GetBarAttributes (PciIo
, PCI_BAR_IDX0
, NULL
, (VOID
**)&AcpiResDescriptor
);
201 if (EFI_ERROR (Status
)) {
205 AcpiCurrentDescriptor
= AcpiResDescriptor
;
207 // Search for a memory type descriptor
208 while (AcpiCurrentDescriptor
->Desc
!= ACPI_END_TAG_DESCRIPTOR
) {
210 // Check if Bar is memory type one and fetch a base address
211 if (AcpiCurrentDescriptor
->Desc
== ACPI_ADDRESS_SPACE_DESCRIPTOR
&&
212 AcpiCurrentDescriptor
->ResType
== ACPI_ADDRESS_SPACE_TYPE_MEM
&&
213 !(AcpiCurrentDescriptor
->SpecificFlag
& ACPI_SPECFLAG_PREFETCHABLE
)) {
214 *PciRegBase
= AcpiCurrentDescriptor
->AddrRangeMin
;
217 Status
= EFI_UNSUPPORTED
;
220 AcpiCurrentDescriptor
= (EFI_ACPI_ADDRESS_SPACE_DESCRIPTOR
*) (AcpiCurrentDescriptor
+ 1);
223 gBS
->FreePool (AcpiResDescriptor
);
229 This function provides PCI MMIO base address, old PCI controller attributes.
231 @param[in] PciIo PCI IO protocol handle
232 @param[out] PciRegBase PCI base MMIO address
233 @param[out] OldPciAttr Old PCI controller attributes.
238 IN EFI_PCI_IO_PROTOCOL
*PciIo
,
239 OUT UINT32
*PciRegBase
,
240 OUT UINT64
*OldPciAttr
246 // Get controller's current attributes
247 Status
= PciIo
->Attributes (
249 EfiPciIoAttributeOperationGet
,
252 if (EFI_ERROR (Status
)) {
256 // Fetch supported attributes
257 Status
= PciIo
->Attributes (
259 EfiPciIoAttributeOperationSupported
,
262 if (EFI_ERROR (Status
)) {
266 // Enable EFI_PCI_IO_ATTRIBUTE_IO, EFI_PCI_IO_ATTRIBUTE_MEMORY and
267 // EFI_PCI_IO_ATTRIBUTE_BUS_MASTER bits in the PCI Config Header
268 AttrSupports
&= EFI_PCI_DEVICE_ENABLE
;
269 Status
= PciIo
->Attributes (
271 EfiPciIoAttributeOperationEnable
,
274 if (EFI_ERROR (Status
)) {
278 Status
= BarIsDeviceMemory (PciIo
, PciRegBase
);
279 if (EFI_ERROR (Status
)) {
280 RestorePciDev (PciIo
, *OldPciAttr
);
287 This function reads MAC address from IOFPGA and writes it to Marvell Yukon NIC
289 @param[in] PciRegBase PCI base MMIO address
300 // Read MAC address from IOFPGA
301 MacHigh
= MmioRead32 (ARM_JUNO_SYS_PCIGBE_H
);
302 MacLow
= MmioRead32 (ARM_JUNO_SYS_PCIGBE_L
);
304 // Set software reset control register to protect from deactivation
305 // the config write state
306 MmioWrite16 (PciRegBase
+ R_CONTROL_STATUS
, CS_RESET_CLR
);
308 // Convert to Marvell MAC Address register format
309 MacHigh
= SwapBytes32 ((MacHigh
& 0xFFFF) << 16 |
310 (MacLow
& 0xFFFF0000) >> 16);
311 MacLow
= SwapBytes32 (MacLow
) >> 16;
314 MmioWrite8 (PciRegBase
+ R_TST_CTRL_1
, TST_CFG_WRITE_ENABLE
);
315 MmioWrite32 (PciRegBase
+ R_MAC
, MacHigh
);
316 MmioWrite32 (PciRegBase
+ R_MAC_MAINT
, MacHigh
);
317 MmioWrite32 (PciRegBase
+ R_MAC
+ R_MAC_LOW
, MacLow
);
318 MmioWrite32 (PciRegBase
+ R_MAC_MAINT
+ R_MAC_LOW
, MacLow
);
319 MmioWrite8 (PciRegBase
+ R_TST_CTRL_1
, TST_CFG_WRITE_DISABLE
);
321 // Initiate device reset
322 MmioWrite16 (PciRegBase
+ R_CONTROL_STATUS
, CS_RESET_SET
);
323 MmioWrite16 (PciRegBase
+ R_CONTROL_STATUS
, CS_RESET_CLR
);
329 The function reads MAC address from Juno IOFPGA registers and writes it
330 into Marvell Yukon NIC.
334 ArmJunoSetNicMacAddress ()
337 EFI_PCI_IO_PROTOCOL
* PciIo
;
341 Status
= GetMarvellYukonPciIoProtocol (&PciIo
);
342 if (EFI_ERROR (Status
)) {
347 Status
= InitPciDev (PciIo
, &PciRegBase
, &OldPciAttr
);
348 if (EFI_ERROR (Status
)) {
352 Status
= WriteMacAddress (PciRegBase
);
354 RestorePciDev (PciIo
, OldPciAttr
);
360 Notification function of the event defined as belonging to the
361 EFI_END_OF_DXE_EVENT_GROUP_GUID event group that was created in
362 the entry point of the driver.
364 This function is called when an event belonging to the
365 EFI_END_OF_DXE_EVENT_GROUP_GUID event group is signalled. Such an
366 event is signalled once at the end of the dispatching of all
367 drivers (end of the so called DXE phase).
369 @param[in] Event Event declared in the entry point of the driver whose
370 notification function is being invoked.
371 @param[in] Context NULL
380 EFI_DEVICE_PATH_PROTOCOL
* PciRootComplexDevicePath
;
385 // PCI Root Complex initialization
386 // At the end of the DXE phase, we should get all the driver dispatched.
387 // Force the PCI Root Complex to be initialized. It allows the OS to skip
390 PciRootComplexDevicePath
= (EFI_DEVICE_PATH_PROTOCOL
*) &mPciRootComplexDevicePath
;
391 Status
= gBS
->LocateDevicePath (&gEfiPciRootBridgeIoProtocolGuid
,
392 &PciRootComplexDevicePath
,
395 Status
= gBS
->ConnectController (Handle
, NULL
, PciRootComplexDevicePath
, FALSE
);
396 ASSERT_EFI_ERROR (Status
);
398 Status
= ArmJunoSetNicMacAddress ();
399 if (EFI_ERROR (Status
)) {
400 DEBUG ((DEBUG_ERROR
, "ArmJunoDxe: Failed to set Marvell Yukon NIC MAC address\n"));
407 IN EFI_HANDLE ImageHandle
,
408 IN EFI_SYSTEM_TABLE
*SystemTable
412 EFI_PHYSICAL_ADDRESS HypBase
;
413 CHAR16
*TextDevicePath
;
414 UINTN TextDevicePathSize
;
417 EFI_EVENT EndOfDxeEvent
;
420 // Register the OHCI and EHCI controllers as non-coherent
421 // non-discoverable devices.
423 Status
= RegisterNonDiscoverableMmioDevice (
424 NonDiscoverableDeviceTypeOhci
,
425 NonDiscoverableDeviceDmaTypeNonCoherent
,
429 FixedPcdGet32 (PcdSynopsysUsbOhciBaseAddress
),
432 ASSERT_EFI_ERROR (Status
);
434 Status
= RegisterNonDiscoverableMmioDevice (
435 NonDiscoverableDeviceTypeEhci
,
436 NonDiscoverableDeviceDmaTypeNonCoherent
,
440 FixedPcdGet32 (PcdSynopsysUsbEhciBaseAddress
),
443 ASSERT_EFI_ERROR (Status
);
446 // If a hypervisor has been declared then we need to make sure its region is protected at runtime
448 // Note: This code is only a workaround for our dummy hypervisor (ArmPkg/Extra/AArch64ToAArch32Shim/)
449 // that does not set up (yet) the stage 2 translation table to hide its own memory to EL1.
451 if (FixedPcdGet32 (PcdHypFvSize
) != 0) {
452 // Ensure the hypervisor region is strictly contained into a EFI_PAGE_SIZE-aligned region.
453 // The memory must be a multiple of EFI_PAGE_SIZE to ensure we do not reserve more memory than the hypervisor itself.
454 // A UEFI Runtime region size granularity cannot be smaller than EFI_PAGE_SIZE. If the hypervisor size is not rounded
455 // to this size then there is a risk some non-runtime memory could be visible to the OS view.
456 if (((FixedPcdGet32 (PcdHypFvSize
) & EFI_PAGE_MASK
) == 0) && ((FixedPcdGet32 (PcdHypFvBaseAddress
) & EFI_PAGE_MASK
) == 0)) {
457 // The memory needs to be declared because the DXE core marked it as reserved and removed it from the memory space
458 // as it contains the Firmware.
459 Status
= gDS
->AddMemorySpace (
460 EfiGcdMemoryTypeSystemMemory
,
461 FixedPcdGet32 (PcdHypFvBaseAddress
), FixedPcdGet32 (PcdHypFvSize
),
462 EFI_MEMORY_WB
| EFI_MEMORY_RUNTIME
464 if (!EFI_ERROR (Status
)) {
465 // We allocate the memory to ensure it is marked as runtime memory
466 HypBase
= FixedPcdGet32 (PcdHypFvBaseAddress
);
467 Status
= gBS
->AllocatePages (AllocateAddress
, EfiRuntimeServicesCode
,
468 EFI_SIZE_TO_PAGES (FixedPcdGet32 (PcdHypFvSize
)), &HypBase
);
471 // The hypervisor must be contained into a EFI_PAGE_SIZE-aligned region and its size must also be aligned
472 // on a EFI_PAGE_SIZE boundary (ie: 4KB).
473 Status
= EFI_UNSUPPORTED
;
474 ASSERT_EFI_ERROR (Status
);
477 if (EFI_ERROR (Status
)) {
482 // Install dynamic Shell command to run baremetal binaries.
483 Status
= ShellDynCmdRunAxfInstall (ImageHandle
);
484 if (EFI_ERROR (Status
)) {
485 DEBUG ((EFI_D_ERROR
, "ArmJunoDxe: Failed to install ShellDynCmdRunAxf\n"));
488 GetJunoRevision(JunoRevision
);
491 // Try to install the ACPI Tables
493 Status
= LocateAndInstallAcpiFromFv (&mJunoAcpiTableFile
);
494 ASSERT_EFI_ERROR (Status
);
497 // Setup R1/R2 options if not already done.
499 if (JunoRevision
!= JUNO_REVISION_R0
) {
500 // Enable PCI enumeration
501 PcdSetBool (PcdPciDisableBusEnumeration
, FALSE
);
504 // Create an event belonging to the "gEfiEndOfDxeEventGroupGuid" group.
505 // The "OnEndOfDxe()" function is declared as the call back function.
506 // It will be called at the end of the DXE phase when an event of the
507 // same group is signalled to inform about the end of the DXE phase.
508 // Install the INSTALL_FDT_PROTOCOL protocol.
510 Status
= gBS
->CreateEventEx (
515 &gEfiEndOfDxeEventGroupGuid
,
519 // Declare the related ACPI Tables
520 EfiCreateProtocolNotifyEvent (
521 &gEfiAcpiTableProtocolGuid
,
523 AcpiPciNotificationEvent
,
530 // Set up the device path to the FDT.
532 TextDevicePath
= (CHAR16
*)FixedPcdGetPtr (PcdJunoFdtDevicePath
);
533 if (TextDevicePath
!= NULL
) {
534 TextDevicePathSize
= StrSize (TextDevicePath
);
535 Buffer
= PcdSetPtr (PcdFdtDevicePaths
, &TextDevicePathSize
, TextDevicePath
);
536 Status
= (Buffer
!= NULL
) ? EFI_SUCCESS
: EFI_BUFFER_TOO_SMALL
;
538 Status
= EFI_NOT_FOUND
;
541 if (EFI_ERROR (Status
)) {
544 "ArmJunoDxe: Setting of FDT device path in PcdFdtDevicePaths failed - %r\n", Status
)