Yoshihiro Shimoda 2de11b2e5d PCI: rcar: Fix missing MACCTLR register setting in initialization sequence ... [ Upstream commit 7c7e53e1c9 ] The R-Car Gen2/3 manual - available at: https://www.renesas.com/eu/en/products/microcontrollers-microprocessors/rz/rzg/rzg1m.html#documents "RZ/G Series User's Manual: Hardware" section strictly enforces the MACCTLR inizialization value - 39.3.1 - "Initial Setting of PCI Express": "Be sure to write the initial value (= H'80FF 0000) to MACCTLR before enabling PCIETCTLR.CFINIT". To avoid unexpected behavior and to match the SW initialization sequence guidelines, this patch programs the MACCTLR with the correct value. Note that the MACCTLR.SPCHG bit in the MACCTLR register description reports that "Only writing 1 is valid and writing 0 is invalid" but this "invalid" has to be interpreted as a write-ignore aka "ignored", not "prohibited". Reported-by: Eugeniu Rosca <erosca@de.adit-jv.com> Fixes: c25da47788 ("PCI: rcar: Add Renesas R-Car PCIe driver") Fixes: be20bbcb0a ("PCI: rcar: Add the initialization of PCIe link in resume_noirq()") Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Cc: <stable@vger.kernel.org> # v5.2+ Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-12-17 20:35:54 +01:00
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controller	PCI: rcar: Fix missing MACCTLR register setting in initialization sequence	2019-12-17 20:35:54 +01:00
endpoint
hotplug	ACPI / hotplug / PCI: Allocate resources directly under the non-hotplug bridge	2019-12-17 20:35:04 +01:00
pcie	PCI/ERR: Run error recovery callbacks for all affected devices	2019-11-20 18:47:39 +01:00
switch	switchtec: Fix unintended mask of MRPC event	2019-06-15 11:54:07 +02:00
access.c
ats.c
bus.c
ecam.c
host-bridge.c
iov.c
irq.c
Kconfig
Makefile
mmap.c
msi.c	PCI/MSI: Return -ENOSPC from pci_alloc_irq_vectors_affinity()	2019-12-05 09:21:06 +01:00
of.c
pci-acpi.c	ACPI/PCI: PM: Add missing wakeup.flags.valid checks	2019-06-22 08:15:17 +02:00
pci-driver.c	PCI: Always allow probing with driver_override	2019-09-19 09:09:37 +02:00
pci-label.c
pci-mid.c	x86/cpu: Sanitize FAM6_ATOM naming	2019-05-14 19:17:53 +02:00
pci-pf-stub.c
pci-stub.c
pci-sysfs.c	PCI: sysfs: Ignore lockdep for remove attribute	2019-07-31 07:27:02 +02:00
pci.c	PCI/ERR: Use slot reset if available	2019-11-20 18:47:13 +01:00
pci.h	PCI/ERR: Use slot reset if available	2019-11-20 18:47:13 +01:00
probe.c	PCI: Init PCIe feature bits for managed host bridge alloc	2019-05-25 18:23:37 +02:00
proc.c
quirks.c	PCI: Fix Switchtec DMA aliasing quirk dmesg noise	2019-11-06 13:05:21 +01:00
remove.c	PCI/ASPM: Fix link_state teardown on device removal	2018-11-13 11:08:45 -08:00
rom.c
search.c
setup-bus.c
setup-irq.c
setup-res.c
slot.c	PCI/ERR: Use slot reset if available	2019-11-20 18:47:13 +01:00
syscall.c
vc.c
vpd.c
xen-pcifront.c