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util/inteltool: Add Skylake DMIBAR register dumping 

Register definitions were taken from
 * 6th Generation Intel Processor Families for S-Platform Volume 2 of 2
 * Page 117
 * 332688-003EN
As well as
 * 6th Generation Intel Processor Families for H-Platform Volume 2 of 2
 * Page 117
 * 332987-002EN

Tested on a 6th gen skylake mobile cpu and capability registers do match up
with the default values.

Change-Id: I636f6c3d045e297f1439d3e88e43f41e03db4c8e
Signed-off-by: Maximilian Schander <coreboot@mimoja.de>
Reviewed-on: https://review.coreboot.org/22345
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Nico Huber <nico.h@gmx.de>
This commit is contained in:
Maximilian Schander 2017-11-05 05:52:13 +01:00 committed by Nico Huber
parent bf94292522
commit 98c11ddc9e
1 changed files with 53 additions and 1 deletions
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54
util/inteltool/pcie.c
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@ -171,6 +171,51 @@ static const io_register_t haswell_ult_dmi_registers[] = {
/* ... - Reserved */
};
/*
* All Skylake-S/H DMI Registers per
*
* 6th Generation Intel Processor Families for S-Platform Volume 2 of 2
* Page 117
* 332688-003E
*
* 6th Generation Intel Processor Families for H-Platform Volume 2 of 2
* Page 117
* 332987-002EN
*/
static const io_register_t skylake_dmi_registers[] = {
{ 0x00, 4, "DMIVCECH" }, // DMI Virtual Channel Enhanced Capability
{ 0x04, 4, "DMIPVCCAP1" }, // DMI Port VC Capability Register 1
{ 0x08, 4, "DMIPVCCAP2" }, // DMI Port VC Capability Register 2
{ 0x0C, 2, "DMIPVCCTL" }, // DMI Port VC Control
{ 0x10, 4, "DMIVC0RCAP" }, // DMI VC0 Resource Capability
{ 0x14, 4, "DMIVC0RCTL" }, // DMI VC0 Resource Control
{ 0x1A, 2, "DMIVC0RSTS" }, // DMI VC0 Resource Status
{ 0x1C, 4, "DMIVC1RCAP" }, // DMI VC1 Resource Capability
{ 0x20, 4, "DMIVC1RCTL" }, // DMI VC1 Resource Control
{ 0x26, 2, "DMIVC1RSTS" }, // DMI VC1 Resource Status
{ 0x34, 4, "DMIVCMRCAP" }, // DMI VCm Resource Capability
{ 0x38, 4, "DMIVCMRCTL" }, // DMI VCm Resource Control
{ 0x3E, 2, "DMIVCMRSTS" }, // DMI VCm Resource Status
{ 0x40, 4, "DMIRCLDECH" }, // DMI Root Complex Link Declaration */
{ 0x44, 4, "DMIESD" }, // DMI Element Self Description
{ 0x50, 4, "DMILE1D" }, // DMI Link Entry 1 Description
{ 0x58, 4, "DMILE1A" }, // DMI Link Entry 1 Address
{ 0x5C, 4, "DMILUE1A" }, // DMI Link Upper Entry 1 Address
{ 0x60, 4, "DMILE2D" }, // DMI Link Entry 2 Description
{ 0x68, 4, "DMILE2A" }, // DMI Link Entry 2 Address
{ 0x84, 4, "LCAP" }, // Link Capabilities
{ 0x88, 2, "LCTL" }, // Link Control
{ 0x8A, 2, "LSTS" }, // DMI Link Status
{ 0x98, 2, "LCTL2" }, // Link Control 2
{ 0x9A, 2, "LSTS2" }, // DMI Link Status 2
{ 0x1C4, 4, "DMIUESTS" }, // DMI Uncorrectable Error Status
{ 0x1C8, 4, "DMIUEMSK" }, // DMI Uncorrectable Error Mask
{ 0x1CC, 4, "DMIUESEV" }, // DMI Uncorrectable Error Mask
{ 0x1D0, 4, "DMICESTS" }, // DMI Correctable Error Status
{ 0x1D4, 4, "DMICEMSK" }, // DMI Correctable Error Mask
};
/*
* Egress Port Root Complex MMIO configuration space
*/
@ -335,7 +380,14 @@ int print_dmibar(struct pci_dev *nb)
dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
break;
case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_M:
case PCI_DEVICE_ID_INTEL_CORE_6TH_GEN_WST:
dmi_registers = skylake_dmi_registers;
size = ARRAY_SIZE(skylake_dmi_registers);
dmibar_phys = pci_read_long(nb, 0x68);
dmibar_phys |= ((uint64_t)pci_read_long(nb, 0x6c)) << 32;
dmibar_phys &= 0x0000007ffffff000UL; /* 38:12 */
break;
default:
printf("Error: Dumping DMIBAR on this northbridge is not (yet) supported.\n");
return 1;