diff options
Diffstat (limited to 'drivers/pci/controller')
59 files changed, 35727 insertions, 0 deletions
diff --git a/drivers/pci/controller/Kconfig b/drivers/pci/controller/Kconfig new file mode 100644 index 000000000000..18fa09b3ac8f --- /dev/null +++ b/drivers/pci/controller/Kconfig @@ -0,0 +1,275 @@ +# SPDX-License-Identifier: GPL-2.0 + +menu "PCI controller drivers" + depends on PCI + +config PCI_MVEBU + bool "Marvell EBU PCIe controller" + depends on ARCH_MVEBU || ARCH_DOVE || COMPILE_TEST + depends on MVEBU_MBUS + depends on ARM + depends on OF + +config PCI_AARDVARK + bool "Aardvark PCIe controller" + depends on (ARCH_MVEBU && ARM64) || COMPILE_TEST + depends on OF + depends on PCI_MSI_IRQ_DOMAIN + help + Add support for Aardvark 64bit PCIe Host Controller. This + controller is part of the South Bridge of the Marvel Armada + 3700 SoC. + +menu "Cadence PCIe controllers support" + +config PCIE_CADENCE + bool + +config PCIE_CADENCE_HOST + bool "Cadence PCIe host controller" + depends on OF + depends on PCI + select IRQ_DOMAIN + select PCIE_CADENCE + help + Say Y here if you want to support the Cadence PCIe controller in host + mode. This PCIe controller may be embedded into many different vendors + SoCs. + +config PCIE_CADENCE_EP + bool "Cadence PCIe endpoint controller" + depends on OF + depends on PCI_ENDPOINT + select PCIE_CADENCE + help + Say Y here if you want to support the Cadence PCIe controller in + endpoint mode. This PCIe controller may be embedded into many + different vendors SoCs. + +endmenu + +config PCIE_XILINX_NWL + bool "NWL PCIe Core" + depends on ARCH_ZYNQMP || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + help + Say 'Y' here if you want kernel support for Xilinx + NWL PCIe controller. The controller can act as Root Port + or End Point. The current option selection will only + support root port enabling. + +config PCI_FTPCI100 + bool "Faraday Technology FTPCI100 PCI controller" + depends on OF + default ARCH_GEMINI + +config PCI_TEGRA + bool "NVIDIA Tegra PCIe controller" + depends on ARCH_TEGRA || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + help + Say Y here if you want support for the PCIe host controller found + on NVIDIA Tegra SoCs. + +config PCI_RCAR_GEN2 + bool "Renesas R-Car Gen2 Internal PCI controller" + depends on ARCH_RENESAS || COMPILE_TEST + depends on ARM + help + Say Y here if you want internal PCI support on R-Car Gen2 SoC. + There are 3 internal PCI controllers available with a single + built-in EHCI/OHCI host controller present on each one. + +config PCIE_RCAR + bool "Renesas R-Car PCIe controller" + depends on ARCH_RENESAS || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + help + Say Y here if you want PCIe controller support on R-Car SoCs. + +config PCI_HOST_COMMON + bool + select PCI_ECAM + +config PCI_HOST_GENERIC + bool "Generic PCI host controller" + depends on OF + select PCI_HOST_COMMON + select IRQ_DOMAIN + select PCI_DOMAINS + help + Say Y here if you want to support a simple generic PCI host + controller, such as the one emulated by kvmtool. + +config PCIE_XILINX + bool "Xilinx AXI PCIe host bridge support" + depends on ARCH_ZYNQ || MICROBLAZE || (MIPS && PCI_DRIVERS_GENERIC) || COMPILE_TEST + help + Say 'Y' here if you want kernel to support the Xilinx AXI PCIe + Host Bridge driver. + +config PCI_XGENE + bool "X-Gene PCIe controller" + depends on ARM64 || COMPILE_TEST + depends on OF || (ACPI && PCI_QUIRKS) + help + Say Y here if you want internal PCI support on APM X-Gene SoC. + There are 5 internal PCIe ports available. Each port is GEN3 capable + and have varied lanes from x1 to x8. + +config PCI_XGENE_MSI + bool "X-Gene v1 PCIe MSI feature" + depends on PCI_XGENE + depends on PCI_MSI_IRQ_DOMAIN + default y + help + Say Y here if you want PCIe MSI support for the APM X-Gene v1 SoC. + This MSI driver supports 5 PCIe ports on the APM X-Gene v1 SoC. + +config PCI_V3_SEMI + bool "V3 Semiconductor PCI controller" + depends on OF + depends on ARM || COMPILE_TEST + default ARCH_INTEGRATOR_AP + +config PCI_VERSATILE + bool "ARM Versatile PB PCI controller" + depends on ARCH_VERSATILE + +config PCIE_IPROC + tristate + select PCI_DOMAINS + help + This enables the iProc PCIe core controller support for Broadcom's + iProc family of SoCs. An appropriate bus interface driver needs + to be enabled to select this. + +config PCIE_IPROC_PLATFORM + tristate "Broadcom iProc PCIe platform bus driver" + depends on ARCH_BCM_IPROC || (ARM && COMPILE_TEST) + depends on OF + select PCIE_IPROC + default ARCH_BCM_IPROC + help + Say Y here if you want to use the Broadcom iProc PCIe controller + through the generic platform bus interface + +config PCIE_IPROC_BCMA + tristate "Broadcom iProc PCIe BCMA bus driver" + depends on ARM && (ARCH_BCM_IPROC || COMPILE_TEST) + select PCIE_IPROC + select BCMA + default ARCH_BCM_5301X + help + Say Y here if you want to use the Broadcom iProc PCIe controller + through the BCMA bus interface + +config PCIE_IPROC_MSI + bool "Broadcom iProc PCIe MSI support" + depends on PCIE_IPROC_PLATFORM || PCIE_IPROC_BCMA + depends on PCI_MSI_IRQ_DOMAIN + default ARCH_BCM_IPROC + help + Say Y here if you want to enable MSI support for Broadcom's iProc + PCIe controller + +config PCIE_ALTERA + bool "Altera PCIe controller" + depends on ARM || NIOS2 || COMPILE_TEST + select PCI_DOMAINS + help + Say Y here if you want to enable PCIe controller support on Altera + FPGA. + +config PCIE_ALTERA_MSI + bool "Altera PCIe MSI feature" + depends on PCIE_ALTERA + depends on PCI_MSI_IRQ_DOMAIN + help + Say Y here if you want PCIe MSI support for the Altera FPGA. + This MSI driver supports Altera MSI to GIC controller IP. + +config PCI_HOST_THUNDER_PEM + bool "Cavium Thunder PCIe controller to off-chip devices" + depends on ARM64 || COMPILE_TEST + depends on OF || (ACPI && PCI_QUIRKS) + select PCI_HOST_COMMON + help + Say Y here if you want PCIe support for CN88XX Cavium Thunder SoCs. + +config PCI_HOST_THUNDER_ECAM + bool "Cavium Thunder ECAM controller to on-chip devices on pass-1.x silicon" + depends on ARM64 || COMPILE_TEST + depends on OF || (ACPI && PCI_QUIRKS) + select PCI_HOST_COMMON + help + Say Y here if you want ECAM support for CN88XX-Pass-1.x Cavium Thunder SoCs. + +config PCIE_ROCKCHIP + bool + depends on PCI + +config PCIE_ROCKCHIP_HOST + tristate "Rockchip PCIe host controller" + depends on ARCH_ROCKCHIP || COMPILE_TEST + depends on OF + depends on PCI_MSI_IRQ_DOMAIN + select MFD_SYSCON + select PCIE_ROCKCHIP + help + Say Y here if you want internal PCI support on Rockchip SoC. + There is 1 internal PCIe port available to support GEN2 with + 4 slots. + +config PCIE_ROCKCHIP_EP + bool "Rockchip PCIe endpoint controller" + depends on ARCH_ROCKCHIP || COMPILE_TEST + depends on OF + depends on PCI_ENDPOINT + select MFD_SYSCON + select PCIE_ROCKCHIP + help + Say Y here if you want to support Rockchip PCIe controller in + endpoint mode on Rockchip SoC. There is 1 internal PCIe port + available to support GEN2 with 4 slots. + +config PCIE_MEDIATEK + bool "MediaTek PCIe controller" + depends on ARCH_MEDIATEK || COMPILE_TEST + depends on OF + depends on PCI_MSI_IRQ_DOMAIN + help + Say Y here if you want to enable PCIe controller support on + MediaTek SoCs. + +config PCIE_TANGO_SMP8759 + bool "Tango SMP8759 PCIe controller (DANGEROUS)" + depends on ARCH_TANGO && PCI_MSI && OF + depends on BROKEN + select PCI_HOST_COMMON + help + Say Y here to enable PCIe controller support for Sigma Designs + Tango SMP8759-based systems. + + Note: The SMP8759 controller multiplexes PCI config and MMIO + accesses, and Linux doesn't provide a way to serialize them. + This can lead to data corruption if drivers perform concurrent + config and MMIO accesses. + +config VMD + depends on PCI_MSI && X86_64 && SRCU + tristate "Intel Volume Management Device Driver" + ---help--- + Adds support for the Intel Volume Management Device (VMD). VMD is a + secondary PCI host bridge that allows PCI Express root ports, + and devices attached to them, to be removed from the default + PCI domain and placed within the VMD domain. This provides + more bus resources than are otherwise possible with a + single domain. If you know your system provides one of these and + has devices attached to it, say Y; if you are not sure, say N. + + To compile this driver as a module, choose M here: the + module will be called vmd. + +source "drivers/pci/controller/dwc/Kconfig" +endmenu diff --git a/drivers/pci/controller/Makefile b/drivers/pci/controller/Makefile new file mode 100644 index 000000000000..24322b92f200 --- /dev/null +++ b/drivers/pci/controller/Makefile @@ -0,0 +1,49 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_PCIE_CADENCE) += pcie-cadence.o +obj-$(CONFIG_PCIE_CADENCE_HOST) += pcie-cadence-host.o +obj-$(CONFIG_PCIE_CADENCE_EP) += pcie-cadence-ep.o +obj-$(CONFIG_PCI_FTPCI100) += pci-ftpci100.o +obj-$(CONFIG_PCI_HYPERV) += pci-hyperv.o +obj-$(CONFIG_PCI_MVEBU) += pci-mvebu.o +obj-$(CONFIG_PCI_AARDVARK) += pci-aardvark.o +obj-$(CONFIG_PCI_TEGRA) += pci-tegra.o +obj-$(CONFIG_PCI_RCAR_GEN2) += pci-rcar-gen2.o +obj-$(CONFIG_PCIE_RCAR) += pcie-rcar.o +obj-$(CONFIG_PCI_HOST_COMMON) += pci-host-common.o +obj-$(CONFIG_PCI_HOST_GENERIC) += pci-host-generic.o +obj-$(CONFIG_PCIE_XILINX) += pcie-xilinx.o +obj-$(CONFIG_PCIE_XILINX_NWL) += pcie-xilinx-nwl.o +obj-$(CONFIG_PCI_V3_SEMI) += pci-v3-semi.o +obj-$(CONFIG_PCI_XGENE_MSI) += pci-xgene-msi.o +obj-$(CONFIG_PCI_VERSATILE) += pci-versatile.o +obj-$(CONFIG_PCIE_IPROC) += pcie-iproc.o +obj-$(CONFIG_PCIE_IPROC_MSI) += pcie-iproc-msi.o +obj-$(CONFIG_PCIE_IPROC_PLATFORM) += pcie-iproc-platform.o +obj-$(CONFIG_PCIE_IPROC_BCMA) += pcie-iproc-bcma.o +obj-$(CONFIG_PCIE_ALTERA) += pcie-altera.o +obj-$(CONFIG_PCIE_ALTERA_MSI) += pcie-altera-msi.o +obj-$(CONFIG_PCIE_ROCKCHIP) += pcie-rockchip.o +obj-$(CONFIG_PCIE_ROCKCHIP_EP) += pcie-rockchip-ep.o +obj-$(CONFIG_PCIE_ROCKCHIP_HOST) += pcie-rockchip-host.o +obj-$(CONFIG_PCIE_MEDIATEK) += pcie-mediatek.o +obj-$(CONFIG_PCIE_TANGO_SMP8759) += pcie-tango.o +obj-$(CONFIG_VMD) += vmd.o +# pcie-hisi.o quirks are needed even without CONFIG_PCIE_DW +obj-y += dwc/ + + +# The following drivers are for devices that use the generic ACPI +# pci_root.c driver but don't support standard ECAM config access. +# They contain MCFG quirks to replace the generic ECAM accessors with +# device-specific ones that are shared with the DT driver. + +# The ACPI driver is generic and should not require driver-specific +# config options to be enabled, so we always build these drivers on +# ARM64 and use internal ifdefs to only build the pieces we need +# depending on whether ACPI, the DT driver, or both are enabled. + +ifdef CONFIG_PCI +obj-$(CONFIG_ARM64) += pci-thunder-ecam.o +obj-$(CONFIG_ARM64) += pci-thunder-pem.o +obj-$(CONFIG_ARM64) += pci-xgene.o +endif diff --git a/drivers/pci/controller/dwc/Kconfig b/drivers/pci/controller/dwc/Kconfig new file mode 100644 index 000000000000..16f52c626b4b --- /dev/null +++ b/drivers/pci/controller/dwc/Kconfig @@ -0,0 +1,197 @@ +# SPDX-License-Identifier: GPL-2.0 + +menu "DesignWare PCI Core Support" + depends on PCI + +config PCIE_DW + bool + +config PCIE_DW_HOST + bool + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW + +config PCIE_DW_EP + bool + depends on PCI_ENDPOINT + select PCIE_DW + +config PCI_DRA7XX + bool + +config PCI_DRA7XX_HOST + bool "TI DRA7xx PCIe controller Host Mode" + depends on SOC_DRA7XX || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + depends on OF && HAS_IOMEM && TI_PIPE3 + select PCIE_DW_HOST + select PCI_DRA7XX + default y + help + Enables support for the PCIe controller in the DRA7xx SoC to work in + host mode. There are two instances of PCIe controller in DRA7xx. + This controller can work either as EP or RC. In order to enable + host-specific features PCI_DRA7XX_HOST must be selected and in order + to enable device-specific features PCI_DRA7XX_EP must be selected. + This uses the DesignWare core. + +config PCI_DRA7XX_EP + bool "TI DRA7xx PCIe controller Endpoint Mode" + depends on SOC_DRA7XX || COMPILE_TEST + depends on PCI_ENDPOINT + depends on OF && HAS_IOMEM && TI_PIPE3 + select PCIE_DW_EP + select PCI_DRA7XX + help + Enables support for the PCIe controller in the DRA7xx SoC to work in + endpoint mode. There are two instances of PCIe controller in DRA7xx. + This controller can work either as EP or RC. In order to enable + host-specific features PCI_DRA7XX_HOST must be selected and in order + to enable device-specific features PCI_DRA7XX_EP must be selected. + This uses the DesignWare core. + +config PCIE_DW_PLAT + bool + +config PCIE_DW_PLAT_HOST + bool "Platform bus based DesignWare PCIe Controller - Host mode" + depends on PCI && PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + select PCIE_DW_PLAT + default y + help + Enables support for the PCIe controller in the Designware IP to + work in host mode. There are two instances of PCIe controller in + Designware IP. + This controller can work either as EP or RC. In order to enable + host-specific features PCIE_DW_PLAT_HOST must be selected and in + order to enable device-specific features PCI_DW_PLAT_EP must be + selected. + +config PCIE_DW_PLAT_EP + bool "Platform bus based DesignWare PCIe Controller - Endpoint mode" + depends on PCI && PCI_MSI_IRQ_DOMAIN + depends on PCI_ENDPOINT + select PCIE_DW_EP + select PCIE_DW_PLAT + help + Enables support for the PCIe controller in the Designware IP to + work in endpoint mode. There are two instances of PCIe controller + in Designware IP. + This controller can work either as EP or RC. In order to enable + host-specific features PCIE_DW_PLAT_HOST must be selected and in + order to enable device-specific features PCI_DW_PLAT_EP must be + selected. + +config PCI_EXYNOS + bool "Samsung Exynos PCIe controller" + depends on SOC_EXYNOS5440 || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + +config PCI_IMX6 + bool "Freescale i.MX6 PCIe controller" + depends on SOC_IMX6Q || (ARM && COMPILE_TEST) + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + +config PCIE_SPEAR13XX + bool "STMicroelectronics SPEAr PCIe controller" + depends on ARCH_SPEAR13XX || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + help + Say Y here if you want PCIe support on SPEAr13XX SoCs. + +config PCI_KEYSTONE + bool "TI Keystone PCIe controller" + depends on ARCH_KEYSTONE || (ARM && COMPILE_TEST) + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + help + Say Y here if you want to enable PCI controller support on Keystone + SoCs. The PCI controller on Keystone is based on DesignWare hardware + and therefore the driver re-uses the DesignWare core functions to + implement the driver. + +config PCI_LAYERSCAPE + bool "Freescale Layerscape PCIe controller" + depends on OF && (ARM || ARCH_LAYERSCAPE || COMPILE_TEST) + depends on PCI_MSI_IRQ_DOMAIN + select MFD_SYSCON + select PCIE_DW_HOST + help + Say Y here if you want PCIe controller support on Layerscape SoCs. + +config PCI_HISI + depends on OF && (ARM64 || COMPILE_TEST) + bool "HiSilicon Hip05 and Hip06 SoCs PCIe controllers" + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + select PCI_HOST_COMMON + help + Say Y here if you want PCIe controller support on HiSilicon + Hip05 and Hip06 SoCs + +config PCIE_QCOM + bool "Qualcomm PCIe controller" + depends on OF && (ARCH_QCOM || COMPILE_TEST) + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + help + Say Y here to enable PCIe controller support on Qualcomm SoCs. The + PCIe controller uses the DesignWare core plus Qualcomm-specific + hardware wrappers. + +config PCIE_ARMADA_8K + bool "Marvell Armada-8K PCIe controller" + depends on ARCH_MVEBU || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + help + Say Y here if you want to enable PCIe controller support on + Armada-8K SoCs. The PCIe controller on Armada-8K is based on + DesignWare hardware and therefore the driver re-uses the + DesignWare core functions to implement the driver. + +config PCIE_ARTPEC6 + bool + +config PCIE_ARTPEC6_HOST + bool "Axis ARTPEC-6 PCIe controller Host Mode" + depends on MACH_ARTPEC6 || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + select PCIE_ARTPEC6 + help + Enables support for the PCIe controller in the ARTPEC-6 SoC to work in + host mode. This uses the DesignWare core. + +config PCIE_ARTPEC6_EP + bool "Axis ARTPEC-6 PCIe controller Endpoint Mode" + depends on MACH_ARTPEC6 || COMPILE_TEST + depends on PCI_ENDPOINT + select PCIE_DW_EP + select PCIE_ARTPEC6 + help + Enables support for the PCIe controller in the ARTPEC-6 SoC to work in + endpoint mode. This uses the DesignWare core. + +config PCIE_KIRIN + depends on OF && (ARM64 || COMPILE_TEST) + bool "HiSilicon Kirin series SoCs PCIe controllers" + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + help + Say Y here if you want PCIe controller support + on HiSilicon Kirin series SoCs. + +config PCIE_HISI_STB + bool "HiSilicon STB SoCs PCIe controllers" + depends on ARCH_HISI || COMPILE_TEST + depends on PCI_MSI_IRQ_DOMAIN + select PCIE_DW_HOST + help + Say Y here if you want PCIe controller support on HiSilicon STB SoCs + +endmenu diff --git a/drivers/pci/controller/dwc/Makefile b/drivers/pci/controller/dwc/Makefile new file mode 100644 index 000000000000..5d2ce72c7a52 --- /dev/null +++ b/drivers/pci/controller/dwc/Makefile @@ -0,0 +1,30 @@ +# SPDX-License-Identifier: GPL-2.0 +obj-$(CONFIG_PCIE_DW) += pcie-designware.o +obj-$(CONFIG_PCIE_DW_HOST) += pcie-designware-host.o +obj-$(CONFIG_PCIE_DW_EP) += pcie-designware-ep.o +obj-$(CONFIG_PCIE_DW_PLAT) += pcie-designware-plat.o +obj-$(CONFIG_PCI_DRA7XX) += pci-dra7xx.o +obj-$(CONFIG_PCI_EXYNOS) += pci-exynos.o +obj-$(CONFIG_PCI_IMX6) += pci-imx6.o +obj-$(CONFIG_PCIE_SPEAR13XX) += pcie-spear13xx.o +obj-$(CONFIG_PCI_KEYSTONE) += pci-keystone-dw.o pci-keystone.o +obj-$(CONFIG_PCI_LAYERSCAPE) += pci-layerscape.o +obj-$(CONFIG_PCIE_QCOM) += pcie-qcom.o +obj-$(CONFIG_PCIE_ARMADA_8K) += pcie-armada8k.o +obj-$(CONFIG_PCIE_ARTPEC6) += pcie-artpec6.o +obj-$(CONFIG_PCIE_KIRIN) += pcie-kirin.o +obj-$(CONFIG_PCIE_HISI_STB) += pcie-histb.o + +# The following drivers are for devices that use the generic ACPI +# pci_root.c driver but don't support standard ECAM config access. +# They contain MCFG quirks to replace the generic ECAM accessors with +# device-specific ones that are shared with the DT driver. + +# The ACPI driver is generic and should not require driver-specific +# config options to be enabled, so we always build these drivers on +# ARM64 and use internal ifdefs to only build the pieces we need +# depending on whether ACPI, the DT driver, or both are enabled. + +ifdef CONFIG_PCI +obj-$(CONFIG_ARM64) += pcie-hisi.o +endif diff --git a/drivers/pci/controller/dwc/pci-dra7xx.c b/drivers/pci/controller/dwc/pci-dra7xx.c new file mode 100644 index 000000000000..cfaeef81d868 --- /dev/null +++ b/drivers/pci/controller/dwc/pci-dra7xx.c @@ -0,0 +1,846 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * pcie-dra7xx - PCIe controller driver for TI DRA7xx SoCs + * + * Copyright (C) 2013-2014 Texas Instruments Incorporated - http://www.ti.com + * + * Authors: Kishon Vijay Abraham I <kishon@ti.com> + */ + +#include <linux/delay.h> +#include <linux/device.h> +#include <linux/err.h> +#include <linux/interrupt.h> +#include <linux/irq.h> +#include <linux/irqdomain.h> +#include <linux/kernel.h> +#include <linux/init.h> +#include <linux/of_device.h> +#include <linux/of_gpio.h> +#include <linux/of_pci.h> +#include <linux/pci.h> +#include <linux/phy/phy.h> +#include <linux/p |