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pci: Add support for Designware IP block

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Add code needed to get a functional PCI subsytem when using in
conjunction with upstream Linux guest (4.13+). Tested to work against
"e1000e" (network adapter, using MSI interrupts) as well as
"usb-ehci" (USB controller, using legacy PCI interrupts).

Based on "i.MX6 Applications Processor Reference Manual" (Document
Number: IMX6DQRM Rev. 4) as well as corresponding dirver in Linux
kernel (circa 4.13 - 4.16 found in drivers/pci/dwc/*)

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Andrey Smirnov 2018-03-09 17:09:43 +00:00 • committed by Peter Maydell
parent 8f2ba1f278
commit d64e5eabc4
5 changed files with 861 additions and 0 deletions
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1
default-configs/arm-softmmu.mak
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@ -140,3 +140,4 @@ CONFIG_GPIO_KEY=y
CONFIG_MSF2=y
CONFIG_FW_CFG_DMA=y
CONFIG_XILINX_AXI=y
CONFIG_PCI_DESIGNWARE=y