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mainboard/bap/ode_e20XX: Change PCIe lines 

This patch binds PCIe lanes 2 and 3 to one PCIe device.
PCIe device 2.4 becomes x2.
Tested with the connected FPGA on PCIe 2.4.
FPGA doubles transfer rate from/to the AMD.
Payload SeaBIOS 1.9.1 stable, Lubuntu 16.04, Kernel 4.4.0

Change-Id: Icee567272312a7df4c3b5a6db5b420a054ec3230
Signed-off-by: Fabian Kunkel <fabi@adv.bruhnspace.com>
Reviewed-on: https://review.coreboot.org/15905
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
This commit is contained in:
Fabian Kunkel 2016-07-26 22:11:07 +02:00 committed by Martin Roth
parent 449fb9b6eb
commit 1f9c07fcd7
2 changed files with 6 additions and 16 deletions
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19
src/mainboard/bap/ode_e20XX/OemCustomize.c
View File

@ -25,26 +25,17 @@
#define FILECODE PROC_GNB_PCIE_FAMILY_0X15_F15PCIECOMPLEXCONFIG_FILECODE
static const PCIe_PORT_DESCRIPTOR PortList [] = {
/* Initialize Port descriptor (PCIe port, Lanes 2-3, PCI Device Number 2, Function 4) */
{
0,
PCIE_ENGINE_DATA_INITIALIZER (PciePortEngine, 3, 3),
PCIE_PORT_DATA_INITIALIZER_V2 (PortEnabled, ChannelTypeExt6db, 2, 5,
HotplugBasic,
PcieGenMaxSupported,
PcieGenMaxSupported,
AspmDisabled, 0x01, 0)
},
/* Initialize Port descriptor (PCIe port, Lanes 1, PCI Device Number 2, ...) */
{
0,
PCIE_ENGINE_DATA_INITIALIZER (PciePortEngine, 2, 2),
PCIE_ENGINE_DATA_INITIALIZER (PciePortEngine, 2, 3),
PCIE_PORT_DATA_INITIALIZER_V2 (PortEnabled, ChannelTypeExt6db, 2, 4,
HotplugBasic,
PcieGenMaxSupported,
PcieGenMaxSupported,
AspmDisabled, 0x02, 0)
},
/* Initialize Port descriptor (PCIe port, Lanes 2, PCI Device Number 2, ...) */
/* Initialize Port descriptor (PCIe port, Lane 1, PCI Device Number 2, Function 3) */
{
0,
PCIE_ENGINE_DATA_INITIALIZER (PciePortEngine, 1, 1),
@ -54,7 +45,7 @@ static const PCIe_PORT_DESCRIPTOR PortList [] = {
PcieGenMaxSupported,
AspmDisabled, 0x03, 0)
},
/* Initialize Port descriptor (PCIe port, Lanes 3, PCI Device Number 2, ...) */
/* Initialize Port descriptor (PCIe port, Lane 0, PCI Device Number 2, Function 2) */
{
0,
PCIE_ENGINE_DATA_INITIALIZER (PciePortEngine, 0, 0),
@ -64,7 +55,7 @@ static const PCIe_PORT_DESCRIPTOR PortList [] = {
PcieGenMaxSupported,
AspmDisabled, 0x04, 0)
},
/* Initialize Port descriptor (PCIe port, Lanes 4-7, PCI Device Number 4, ...) */
/* Initialize Port descriptor (PCIe port, Lanes 4-7, PCI Device Number 2, Function 1) */
{
DESCRIPTOR_TERMINATE_LIST,
PCIE_ENGINE_DATA_INITIALIZER (PciePortEngine, 4, 7),

3
src/mainboard/bap/ode_e20XX/devicetree.cb
View File

@ -31,8 +31,7 @@ chip northbridge/amd/agesa/family16kb/root_complex
device pci 2.1 on end # x4 PCIe Slot
device pci 2.2 on end # PCIe Q7 Realtek GBit LAN
device pci 2.3 on end # PCIe CB Realtek GBit LAN
device pci 2.4 on end # PCIe BAP FPGA
device pci 2.5 on end # PCIe BAP FPGA (unused, for 050T)
device pci 2.4 on end # x2 PCIe Microsemi FPGA
end #chip northbridge/amd/agesa/family16kb
chip southbridge/amd/agesa/hudson # it is under NB/SB Link, but on the same pci bus