intel/cannonlake: Implement PCIe RP devicetree update
Some existing devicetrees were manually adapted to anticipate root-port switching. Now, their PCI-device on/off settings should just reflect the `PcieRpEnable` state and configuration happens on the PCI function that was assigned at reset. Change-Id: I4d76f38c222b74053c6a2f80b492d4660ab4db6d Signed-off-by: Nico Huber <nico.huber@secunet.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/36651 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Edward O'Callaghan <quasisec@chromium.org> Reviewed-by: Patrick Rudolph <siro@das-labor.org> Reviewed-by: Furquan Shaikh <furquan@google.com> Reviewed-by: Angel Pons <th3fanbus@gmail.com>
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@ -294,7 +294,7 @@ chip soc/intel/cannonlake
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end
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end #I2C #4
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device pci 1a.0 on end # eMMC
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device pci 1c.0 on
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device pci 1c.6 on
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chip drivers/net
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register "customized_leds" = "0x05af"
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register "wake" = "GPE0_DW1_07" # GPP_C7
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@ -305,8 +305,7 @@ chip soc/intel/cannonlake
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register "device_index" = "0"
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device pci 00.0 on end
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end
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end # FSP requires func0 be enabled.
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device pci 1c.6 on end # RTL8111H Ethernet NIC (becomes RP1).
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end # RTL8111H Ethernet NIC
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device pci 1d.2 on end # PCI Express Port 11 (X2 NVMe)
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device pci 1e.3 off end # GSPI #1
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end
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@ -294,7 +294,7 @@ chip soc/intel/cannonlake
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end
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end #I2C #4
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device pci 1a.0 on end # eMMC
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device pci 1c.0 on
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device pci 1c.6 on
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chip drivers/net
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register "customized_leds" = "0x05af"
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register "wake" = "GPE0_DW1_07" # GPP_C7
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@ -305,8 +305,7 @@ chip soc/intel/cannonlake
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register "device_index" = "0"
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device pci 00.0 on end
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end
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end # FSP requires func0 be enabled.
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device pci 1c.6 on end # RTL8111H Ethernet NIC (becomes RP1).
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end # RTL8111H Ethernet NIC
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device pci 1d.2 on end # PCI Express Port 11 (X2 NVMe)
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device pci 1e.3 off end # GSPI #1
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end
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@ -297,7 +297,7 @@ chip soc/intel/cannonlake
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end
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end #I2C #4
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device pci 1a.0 on end # eMMC
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device pci 1c.0 on
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device pci 1c.6 on
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chip drivers/net
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register "customized_leds" = "0x05af"
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register "wake" = "GPE0_DW1_07" # GPP_C7
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@ -308,8 +308,7 @@ chip soc/intel/cannonlake
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register "device_index" = "0"
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device pci 00.0 on end
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end
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end # FSP requires func0 be enabled.
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device pci 1c.6 on end # RTL8111H Ethernet NIC (becomes RP1).
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end # RTL8111H Ethernet NIC
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device pci 1d.2 on end # PCI Express Port 11 (X2 NVMe)
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device pci 1e.3 off end # GSPI #1
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end
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@ -373,10 +373,10 @@ chip soc/intel/cannonlake
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device pci 1c.5 off end # PCI Express Port 6
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device pci 1c.6 off end # PCI Express Port 7
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device pci 1c.7 off end # PCI Express Port 8
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device pci 1d.0 on
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device pci 1d.0 off end # PCI Express Port 9
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device pci 1d.1 on
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smbios_slot_desc "SlotTypeM2Socket1_SD" "SlotLengthOther" "2230" "SlotDataBusWidth1X"
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end # PCI Express Port 9
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device pci 1d.1 on end # PCI Express Port 10
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end # PCI Express Port 10
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device pci 1d.2 on end # PCI Express Port 11
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device pci 1d.3 off end # PCI Express Port 12
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device pci 1d.4 on
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@ -207,7 +207,7 @@ chip soc/intel/cannonlake
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device pci 19.1 off end # I2C #5
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device pci 19.2 on end # UART #2
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device pci 1a.0 off end # eMMC
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device pci 1c.0 on end # PCI Express Port 1
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device pci 1c.0 off end # PCI Express Port 1
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device pci 1c.1 off end # PCI Express Port 2
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device pci 1c.2 off end # PCI Express Port 3
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device pci 1c.3 off end # PCI Express Port 4
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@ -7,6 +7,7 @@
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#include <intelblocks/acpi.h>
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#include <intelblocks/cfg.h>
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#include <intelblocks/itss.h>
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#include <intelblocks/pcie_rp.h>
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#include <intelblocks/xdci.h>
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#include <romstage_handoff.h>
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#include <soc/intel/common/vbt.h>
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@ -16,6 +17,19 @@
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#include "chip.h"
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static const struct pcie_rp_group pch_lp_rp_groups[] = {
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{ .slot = PCH_DEV_SLOT_PCIE, .count = 8 },
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{ .slot = PCH_DEV_SLOT_PCIE_1, .count = 8 },
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{ 0 }
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};
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static const struct pcie_rp_group pch_h_rp_groups[] = {
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{ .slot = PCH_DEV_SLOT_PCIE, .count = 8 },
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{ .slot = PCH_DEV_SLOT_PCIE_1, .count = 8 },
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{ .slot = PCH_DEV_SLOT_PCIE_2, .count = 8 },
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{ 0 }
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};
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#if CONFIG(HAVE_ACPI_TABLES)
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const char *soc_acpi_name(const struct device *dev)
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{
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@ -166,6 +180,12 @@ void soc_init_pre_device(void *chip_info)
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cnl_configure_pads(NULL, 0);
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soc_gpio_pm_configuration();
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/* swap enabled PCI ports in device tree if needed */
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if (CONFIG(SOC_INTEL_CANNONLAKE_PCH_H))
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pcie_rp_update_devicetree(pch_h_rp_groups);
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else
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pcie_rp_update_devicetree(pch_lp_rp_groups);
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}
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static struct device_operations pci_domain_ops = {
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