kernel_samsung_a53x/drivers/pci/controller
Kishon Vijay Abraham I 5738327c02 PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0)
[ Upstream commit 86f271f22bbb6391410a07e08d6ca3757fda01fa ]

Errata #i2037 in AM65x/DRA80xM Processors Silicon Revision 1.0
(SPRZ452D_July 2018_Revised December 2019 [1]) mentions when an
inbound PCIe TLP spans more than two internal AXI 128-byte bursts,
the bus may corrupt the packet payload and the corrupt data may
cause associated applications or the processor to hang.

The workaround for Errata #i2037 is to limit the maximum read
request size and maximum payload size to 128 bytes. Add workaround
for Errata #i2037 here.

The errata and workaround is applicable only to AM65x SR 1.0 and
later versions of the silicon will have this fixed.

[1] -> https://www.ti.com/lit/er/sprz452i/sprz452i.pdf

Link: https://lore.kernel.org/linux-pci/16e1fcae-1ea7-46be-b157-096e05661b15@siemens.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Achal Verma <a-verma1@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Krzysztof Wilczyński <kwilczynski@kernel.org>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2024-11-23 23:21:03 +01:00
..
cadence
dwc PCI: keystone: Add workaround for Errata #i2037 (AM65x SR 1.0) 2024-11-23 23:21:03 +01:00
mobiveil
Kconfig
Makefile
pci-aardvark.c
pci-ftpci100.c
pci-host-common.c
pci-host-generic.c
pci-hyperv-intf.c
pci-hyperv.c PCI: hv: Return zero, not garbage, when reading PCI_INTERRUPT_PIN 2024-11-23 23:20:14 +01:00
pci-loongson.c
pci-mvebu.c
pci-rcar-gen2.c
pci-tegra.c
pci-thunder-ecam.c
pci-thunder-pem.c
pci-v3-semi.c
pci-versatile.c
pci-xgene-msi.c
pci-xgene.c
pcie-altera-msi.c
pcie-altera.c
pcie-brcmstb.c
pcie-hisi-error.c
pcie-iproc-bcma.c
pcie-iproc-msi.c
pcie-iproc-platform.c
pcie-iproc.c
pcie-iproc.h
pcie-mediatek.c
pcie-rcar-ep.c
pcie-rcar-host.c
pcie-rcar.c
pcie-rcar.h
pcie-rockchip-ep.c PCI: rockchip-ep: Remove wrong mask on subsys_vendor_id 2024-11-19 14:19:04 +01:00
pcie-rockchip-host.c
pcie-rockchip.c PCI: rockchip: Use GPIOD_OUT_LOW flag while requesting ep_gpio 2024-11-23 23:20:14 +01:00
pcie-rockchip.h
pcie-tango.c
pcie-xilinx-cpm.c
pcie-xilinx-nwl.c
pcie-xilinx.c
vmd.c