Probe the PCIe driver in fs_initcall() instead of module_init()
to assure that pci_assign_unassigned_resources() will be called
early. This function is called in dw_pcie_host_init(), which is
in turn called from imx6_add_pcie_port(), which is called from
imx6_pcie_probe(). If this is not called early, we will hit
resource collisions since pcieport driver is then probed way too
late.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Frank Li <lznuaa@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Mohit KUMAR <Mohit.KUMAR@st.com>
Cc: Pratyush Anand <pratyush.anand@st.com>
Cc: Richard Zhu <r65037@freescale.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Sean Cross <xobs@kosagi.com>
Cc: Siva Reddy Kallam <siva.kallam@samsung.com>
Cc: Srikanth T Shivanand <ts.srikanth@samsung.com>
Cc: Tim Harvey <tharvey@gateworks.com>
Cc: Troy Kisky <troy.kisky@boundarydevices.com>
Cc: Yinghai Lu <yinghai@kernel.org>
imx6_pcie_of_match is always compiled in because PCI_IMX6 depends on
SOC_IMX6Q, which only supports OF build. Hence of_match_ptr is not
required.
[bhelgaas: add changelog details from Shawn]
Signed-off-by: Sachin Kamat <sachin.kamat@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Sean Cross <xobs@kosagi.com>
A longer link startup timeout is required when certain PCI switches are
attached to the root complex. This was tested with a Pericom switch
and a PLX switch.
Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Tim Harvey <tharvey@gateworks.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
An imprecise abort is triggered when a port behind a switch is accessed
and no device is present. At enumeration, imprecise aborts are not enabled
thus this ends up getting deferred until the kernel has completed init. At
that point we must not adjust PC - the handler must do nothing, but a
handler must exist.
This fixes random crashes that occur right after freeing init.
Tested-by: Marek Vasut <marex@denx.de>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Marek Vasut <marex@denx.de>
There is an error message within devm_ioremap_resource()
already, so remove the dev_err() call to avoid redundant
error message.
Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Jingoo Han <jg1.han@samsung.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Add support for the PCIe port present on the i.MX6 family of controllers.
These use the Synopsis Designware core tied to their own PHY.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Marek Vasut