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mb/google/guybrush: If not using PCIe WWAN, disable the port 

Check to see if the PCIe slot needs to be activated for the WWAN card.
If it doesn't, leave it unused so it will be powered off and not do
the PCIe training.

BUG=b:193036827
TEST=Boot & Reboot guybrush with both PCIe & USB WWAN cards.

Signed-off-by: Martin Roth <martinroth@chromium.org>
Change-Id: I79c32e4814672c03ee0821786d5be1c77fd1b410
Reviewed-on: https://review.coreboot.org/c/coreboot/+/57316
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Karthik Ramasubramanian <kramasub@google.com>
This commit is contained in:
Martin Roth 2021-08-31 17:46:27 -06:00 committed by Felix Held
parent 9ed8e38366
commit 76643f0dfb
1 changed files with 93 additions and 5 deletions
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94
src/mainboard/google/guybrush/port_descriptors.c
View File

@ -7,7 +7,7 @@
#include <types.h>
/* All PCIe Resets are handled in coreboot */
static const fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
static const fsp_dxio_descriptor guybrush_czn_pci_wwan_descriptors[] = {
{ /* WLAN */
.engine_type = PCIE_ENGINE,
.port_present = true,
@ -64,7 +64,7 @@ static const fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
.clk_req = CLK_REQ3,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* TODO: remove this temporay workaround */
{ /* TODO: remove this temporary workaround */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 8,
@ -75,7 +75,89 @@ static const fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
.clk_req = CLK_REQ5,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* TODO: remove this temporay workaround */
{ /* TODO: remove this temporary workaround */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 16,
.end_logical_lane = 23,
.device_number = PCIE_GPP_BRIDGE_1_DEV,
.function_number = PCIE_GPP_1_0_FUNC,
.turn_off_unused_lanes = true,
.clk_req = CLK_REQ6,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
}
};
/* All PCIe Resets are handled in coreboot */
static const fsp_dxio_descriptor guybrush_czn_dxio_descriptors[] = {
{ /* WLAN */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 0,
.end_logical_lane = 0,
.device_number = PCI_SLOT(WLAN_DEVFN),
.function_number = PCI_FUNC(WLAN_DEVFN),
.link_aspm = ASPM_L1,
.link_aspm_L1_1 = true,
.link_aspm_L1_2 = true,
.turn_off_unused_lanes = true,
.clk_req = CLK_REQ0,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* SD */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 1,
.end_logical_lane = 1,
.device_number = PCI_SLOT(SD_DEVFN),
.function_number = PCI_FUNC(SD_DEVFN),
.link_aspm = ASPM_L1,
.link_aspm_L1_1 = true,
.link_aspm_L1_2 = true,
.turn_off_unused_lanes = true,
.clk_req = CLK_REQ1,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* WWAN */
.engine_type = UNUSED_ENGINE,
.port_present = true,
.start_logical_lane = 2,
.end_logical_lane = 2,
.device_number = PCI_SLOT(WWAN_DEVFN),
.function_number = PCI_FUNC(WWAN_DEVFN),
.link_aspm = ASPM_L1,
.link_aspm_L1_1 = true,
.link_aspm_L1_2 = true,
.turn_off_unused_lanes = true,
.clk_req = CLK_REQ2,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* NVME */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 4,
.end_logical_lane = 7,
.device_number = PCI_SLOT(NVME_DEVFN),
.function_number = PCI_FUNC(NVME_DEVFN),
.link_aspm = ASPM_L1,
.link_aspm_L1_1 = true,
.link_aspm_L1_2 = true,
.turn_off_unused_lanes = true,
.clk_req = CLK_REQ3,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* TODO: remove this temporary workaround */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 8,
.end_logical_lane = 11,
.device_number = PCIE_GPP_BRIDGE_2_DEV,
.function_number = PCIE_GPP_2_4_FUNC,
.turn_off_unused_lanes = true,
.clk_req = CLK_REQ5,
.port_params = {PP_PSPP_AC, 0x133, PP_PSPP_DC, 0x122}
},
{ /* TODO: remove this temporary workaround */
.engine_type = PCIE_ENGINE,
.port_present = true,
.start_logical_lane = 16,
@ -121,8 +203,14 @@ void mainboard_get_dxio_ddi_descriptors(
const fsp_dxio_descriptor **dxio_descs, size_t *dxio_num,
const fsp_ddi_descriptor **ddi_descs, size_t *ddi_num)
{
if (variant_has_pcie_wwan()) {
*dxio_descs = guybrush_czn_pci_wwan_descriptors;
*dxio_num = ARRAY_SIZE(guybrush_czn_pci_wwan_descriptors);
} else {
*dxio_descs = guybrush_czn_dxio_descriptors;
*dxio_num = ARRAY_SIZE(guybrush_czn_dxio_descriptors);
}
*ddi_descs = guybrush_czn_ddi_descriptors;
*ddi_num = ARRAY_SIZE(guybrush_czn_ddi_descriptors);
}