mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-01 11:24:25 +08:00
f7821b4934
This adds a new PCI controller driver for the Intel IXP4xx (IX425, IXP435 etc), based on the XScale microarchitecture. This replaces the old driver in arch/arm/mach-ixp4xx/common-pci.c which utilized the ARM-specific BIOS32 PCI framework, and all parameterization for such things as memory and IO space as well as interrupt swizzling is done from the device tree. The plan is to phase out and delete the old driver piecemal. The __raw_writel() and __raw_readl() are used for accessing the PCI controller for the same reason that these accessors are used in the timer, IRQ and GPIO drivers: the platform will alter its address bus pattern based on whether the system is booted in big- or little-endian mode. For this reason all register on IXP4xx must always be accessed in native (CPU) endianness. This driver supports 64MB of PCI memory space, but not the indirect access of 1GB that is available in the old driver. We can address that later if and only if there are users that need all 1GB of PCI address space. Krzysztof reports having to use indirect MMIO only once for a VGA card. There is work ongoing for general indirect MMIO. (In practice the indirect MMIO is performed by writing address and writing and reading values into/from a controller register.) Tested by booting the NSLU2, attaching a USB stick, mounting and browsing the drive. Link: https://lore.kernel.org/linux-arm-kernel/m37edwuv8m.fsf@t19.piap.pl/ Cc: Arnd Bergmann <arnd@arndb.de> Cc: Imre Kaloz <kaloz@openwrt.org> Cc: Krzysztof Halasa <khalasa@piap.pl> Cc: Zoltan HERPAI <wigyori@uid0.hu> Cc: Raylynn Knight <rayknight@me.com> Acked-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
62 lines
2.6 KiB
Makefile
62 lines
2.6 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
|
|
obj-$(CONFIG_PCIE_CADENCE) += cadence/
|
|
obj-$(CONFIG_PCI_FTPCI100) += pci-ftpci100.o
|
|
obj-$(CONFIG_PCI_IXP4XX) += pci-ixp4xx.o
|
|
obj-$(CONFIG_PCI_HYPERV) += pci-hyperv.o
|
|
obj-$(CONFIG_PCI_HYPERV_INTERFACE) += pci-hyperv-intf.o
|
|
obj-$(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_HOST) += pcie-rcar.o pcie-rcar-host.o
|
|
obj-$(CONFIG_PCIE_RCAR_EP) += pcie-rcar.o pcie-rcar-ep.o
|
|
obj-$(CONFIG_PCI_HOST_COMMON) += pci-host-common.o
|
|
obj-$(CONFIG_PCI_HOST_GENERIC) += pci-host-generic.o
|
|
obj-$(CONFIG_PCI_HOST_THUNDER_ECAM) += pci-thunder-ecam.o
|
|
obj-$(CONFIG_PCI_HOST_THUNDER_PEM) += pci-thunder-pem.o
|
|
obj-$(CONFIG_PCIE_XILINX) += pcie-xilinx.o
|
|
obj-$(CONFIG_PCIE_XILINX_NWL) += pcie-xilinx-nwl.o
|
|
obj-$(CONFIG_PCIE_XILINX_CPM) += pcie-xilinx-cpm.o
|
|
obj-$(CONFIG_PCI_V3_SEMI) += pci-v3-semi.o
|
|
obj-$(CONFIG_PCI_XGENE) += pci-xgene.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-$(CONFIG_PCIE_MEDIATEK_GEN3) += pcie-mediatek-gen3.o
|
|
obj-$(CONFIG_PCIE_MICROCHIP_HOST) += pcie-microchip-host.o
|
|
obj-$(CONFIG_VMD) += vmd.o
|
|
obj-$(CONFIG_PCIE_BRCMSTB) += pcie-brcmstb.o
|
|
obj-$(CONFIG_PCI_LOONGSON) += pci-loongson.o
|
|
obj-$(CONFIG_PCIE_HISI_ERR) += pcie-hisi-error.o
|
|
# pcie-hisi.o quirks are needed even without CONFIG_PCIE_DW
|
|
obj-y += dwc/
|
|
obj-y += mobiveil/
|
|
|
|
|
|
# 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_ACPI
|
|
ifdef CONFIG_PCI_QUIRKS
|
|
obj-$(CONFIG_ARM64) += pci-thunder-ecam.o
|
|
obj-$(CONFIG_ARM64) += pci-thunder-pem.o
|
|
obj-$(CONFIG_ARM64) += pci-xgene.o
|
|
endif
|
|
endif
|