Release PERST# signal via GPIO when "reset-gpios" is defined in device tree.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Reviewed-by: Stefan Roese <sr@denx.de>
The current fixup of LX2160A PCIe nodes is based on non-production
rev1 silicon, and in Linux the nodes have been updated for rev2
silicon, so update the searching compatible string to match the
kernel changes. And for compatibility with the rev1 nodes, move
forward the board specific fixup.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Kirkwood uses macros KW_DEFADR_PCI_MEM and KW_DEFADR_PCI_IO for base
address of PCIe mappings. Size of PCIe windows is not defined in any macro
yet, so export them in new KW_DEFADR_PCI_MEM_SIZE and KW_DEFADR_PCI_IO_SIZE
macros.
Kirkwood arch code already maps mbus windows for io and mem, so avoid
calling mvebu_mbus_add_window_by_id() function which would try to do
duplicate window mapping.
Kirkwood PCIe controllers already use "marvell,kirkwood-pcie" DT compatible
string, so mark pci_mvebu.c driver as compatible for it.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
As explained in commit 3bedbcc3aa ("arm: mvebu: a38x: serdes: Don't
overwrite read-only SAR PCIe registers") it is required to set Maximum Link
Width bits of PCIe Root Port Link Capabilities Register depending of number
of used serdes lanes. As this register is part of PCIe address space and
not serdes address space, move it into pci_mvebu.c driver.
Read number of PCIe lanes from DT property "num-lanes" which is used also
by other PCIe controller drivers in Linux kernel. If this property is
absent then it defaults to 1. This property needs to be set to 4 for every
mvebu board which use PEX_ROOT_COMPLEX_X4 or PEX_BUS_MODE_X4.
Enabling of PCIe port needs to be done afer all registers in PCIe address
space are properly configure. For this purpose use new mvebu-reset driver
(part of system-controller) and remove this code from serdes code.
Because some PCIe ports cannot be enabled individually, it is required to
first setup all PCIe ports and then enable them.
This change contains also all required "num-lanes" and "resets" DTS
properties, to make pci_mvebu.c driver work correctly.
Signed-off-by: Pali Rohár <pali@kernel.org>
With legacy PCI code removed and thus DM_PCI also removed, a few places
did not get correctly updated with the merge to next and thus broke.
Remove now extraneous dependencies on DM_PCI.
Signed-off-by: Tom Rini <trini@konsulko.com>
default n/no doesn't need to be specified. It is default option anyway.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[trini: Rework FSP_USE_UPD portion]
Signed-off-by: Tom Rini <trini@konsulko.com>
On MIPS the DRAM start address respectively CONFIG_SYS_SDRAM_BASE
is still used as a virtual, CPU-mapped address instead of being used
as physical address. Converting all MIPS boards and generic MIPS code
to fix that is not trivial. Due to the approaching deadline for
PCI DM conversion, this workaround is required for MIPS boards with
PCI support until the CONFIG_SYS_SDRAM_BASE issue could be solved.
Add a compile-time option to let the PCI uclass core optionally map
the DRAM address to a physical address when adding the PCI region
of type PCI_REGION_SYS_MEMORY.
Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Reviewed-by: Stefan Roese <sr@denx.de>
Add PCIe driver for UniPhier SoCs. This PCIe controller is based on
Synopsys DesignWare Core IP.
This version doesn't apply common DW functions because supported
controller doesn't have unroll version of iATU.
Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Add ECAM based SynQuacer PCIe RC driver. This driver configures the
PCIe RC and filter out a ghost pcie config.
Since the Linux kernel expects "socionext,synquacer-pcie-ecam" device
is configured by firmware (EDK2), it doesn't re-configure in the kernel.
So as same as EDK2, U-Boot needs to configure it before boot the kernel.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu@linaro.org>
Add pcie driver for SiFive fu740, the driver depends on
fu740 gpio, clk and reset driver to do init. Force running at Gen1
for better capatible enumeration.
Several devices are tested:
a) M.2 NVMe SSD
b) USB-to-PCI adapter
c) Ethernet adapter (E1000 compatible)
Signed-off-by: Green Wan <green.wan@sifive.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
This patch adds the PCIe host controller driver for MIPS Octeon II/III.
The driver mainly consist of the PCI config functions, as all of the
complex serdes related port / lane setup, is done in the serdes / pcie
code available in the "arch/mips/mach-octeon" directory.
Signed-off-by: Stefan Roese <sr@denx.de>
Cc: Aaron Williams <awilliams@marvell.com>
Cc: Chandrakala Chavva <cchavva@marvell.com>
Cc: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Add support for the DW PCIe controller found in the Amlogic Meson AXG and
G12 (G12A, G12B, SM1) SoCs.
This uses the common DW PCIe helpers introducted previously.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
With the introduction of pcie_dw_rockchip, and need to support the DW PCIe in the
Amlogic AXG & G12 SoCs, most of the DW PCIe helpers would be duplicated.
This introduce a "common" DW PCIe helpers file with common code merged from the
dw_ti and dw_rockchip drivers and adapted to fit with the upcoming dw_meson.
The following changes will switch the dw_ti and dw_rockchip to use these helpers.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Tested-by: Green Wan <green.wan@sifive.com>
[bmeng: remove the blank line at EOF of drivers/pci/pcie_dw_common.c]
Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
LX2162A is not like LX2160A which has different PCIe controller
in rev1 and rev2 silicon. It supports only one configuration of
PCIe controller, which is same as LS2088A. So update PCIe
compatible string same as LS2088A.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Wasim Khan <wasim.khan@nxp.com>
Tested-by: Wasim Khan <wasim.khan@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Add Rockchip dwc based PCIe controller driver for rk356x platform.
Driver support Gen3 by operating as a Root complex.
Signed-off-by: Shawn Lin <shawn.lin@rock-chips.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Kever Yang<kever.yang@rock-chips.com>
LX2162 is LX2160 based SoC, it has same die as of LX2160
with different packaging.
LX2162A support 64-bit 2.9GT/s DDR4 memory, i2c, micro-click module,
microSD card, eMMC support, serial console, qspi nor flash, qsgmii,
sgmii, 25g, 40g, 50g network interface, one usb 3.0 and serdes
interface to support three PCIe gen3 interface.
Signed-off-by: Meenakshi Aggarwal <meenakshi.aggarwal@nxp.com>
[Fixed whitespace errors]
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
In the current implementation, u-boot creates iommu mappings only
for PCI devices enumarated at boot time thus does not take into
account more dynamic scenarios such as SR-IOV or PCI hot-plug.
Add an u-boot env var and a device tree property (to be used for
example in more static scenarios such as hardwired PCI endpoints
that get initialized later in the system setup) that would allow
two things:
- for a SRIOV capable PCI EP identified by its B.D.F specify
the maximum number of VFs that will ever be created for it
- for hot-plug case, specify the B.D.F with which the device
will show up on the PCI bus
More details can be found in the included documentation:
arch/arm/cpu/armv8/fsl-layerscape/doc/README.pci_iommu_extra
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
For proper initialization of aardvark pci driver it is required to
de-assert reset GPIO. So depeneds on DM_GPIO option.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Stefan Roese <sr@denx.de>
Tested-by: Andre Heider <a.heider@gmail.com>
There is missing dependency for PCIE_ROCKCHIP which selects
PHY_ROCKCHIP_PCIE which directly depends on ARCH_ROCKCHIP.
WARNING: unmet direct dependencies detected for PHY_ROCKCHIP_PCIE
Depends on [n]: ARCH_ROCKCHIP [=n]
Selected by [y]:
- PCIE_ROCKCHIP [=y] && PCI [=y]
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Adds support for PCI ECAM/PEM controllers found on OcteonTX
or OcteonTX2 SoC platforms.
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
If ARI capability is found on device, use it to update next function
number in bus scan and also helps to skip unnecessary bdf scans.
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
SR-IOV - Single Root I/O Virtualization
PF - Physical Function VF - Virtual Function
If SR-IOV capability is present, use it to initialize Virtual Function
PCI device instances. pci_sriov_init function will read SR-IOV
registers to create VF devices under the PF PCI device and also bind
driver if available. This function needs to be invoked from Physical
function device driver which expects VF device support, creating
minimal impact on existing framework.
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Enable PCI memory regions in ranges property to be of multiple entry.
This helps to add support for SoC's like OcteonTX/TX2 where every
peripheral is on PCI bus.
Signed-off-by: Suneel Garapati <sgarapati@marvell.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Bin Meng <bmeng.cn@gmail.com>
Add Root Complex and Endpoint mode specific config entries, such that
it's feasible to enable the RC and/or EP mode driver indepently.
Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@nxp.com>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
Now, we have a PCIe PHY driver as part of the Generic
PHY framework. Let's use it instead of legacy PHY driver.
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
This patch adds basic driver PCI Express controller found on Broadcom
set-top-box SoCs, e.g. BCM2711.
The code is based on Linux upstream driver (pcie-brcmstb.c) with MSI
handling removed. The inbound access memory region is not currently
parsed from dma-ranges DT property and a fixed 3GB region is used.
The patch has been tested on RPI4 board, i.e. on BCM2711 SoC with VL805
USB Host Controller.
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de>
Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Signed-off-by: Matthias Brugger <mbrugger@suse.com>
Add Rockchip PCIe controller driver for rk3399 platform.
Driver support Gen1 by operating as a Root complex.
Thanks to Patrick for initial work.
Signed-off-by: Patrick Wildt <patrick@blueri.se>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>
Tested-by: Suniel Mahesh <sunil@amarulasolutions.com> #roc-rk3399-pc
The ep node device tree name is governed by these bindings:
https://github.com/torvalds/linux/blob/master/Documentation/
devicetree/bindings/pci/layerscape-pci.txt#L24
As per above the ep compatible node contains platform name.
Therefore, define the ep node compatible as CONFIG to find the
pcie ep node in device tree during device tree fixup.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
move the PCIE related config from arch Kconfig to PCI Kconfig.
As the PCI_LAYERSCAPE driver is being used in platform other than
fsl-layerscape platforms like ls102xa.
Signed-off-by: Pankaj Bansal <pankaj.bansal@nxp.com>
Signed-off-by: Priyanka Jain <priyanka.jain@nxp.com>
This adds platform code and the device tree for the Phytium Durian Board.
The initial support comprises the UART and the PCIE.
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Kever Yang <kever.yang@rock-chips.com>
Cc: Tom Rini <trini@konsulko.com>
Cc: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Steven Hao <liuhao@phytium.com.cn>
add DM based PCI Configuration space access support for
MPC85xx PCI Bridge. This driver is based on
arch/powerpc/cpu/mpc85xx/pci.c
In the old driver there is a fix for a hw issue on the
TARGET_MPC8555CDS and TARGET_MPC8541CDS boards. As I
have no such hardware I did not port this part.
Signed-off-by: Heiko Schocher <hs@denx.de>
Reviewed-by: Priyanka Jain <priyanka.jain@nxp.com>
This adds PCIe controller support for MT7623.
This is adapted from the Linux version.
Tested-by: Frank Wunderlich <frank-w@public-files.de>
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Frank Wunderlich <frank-w@public-files.de>
