Commit 0c401fdf authored Oct 15, 2019 by Max Filippov

xtensa: virt: fix PCI IO ports mapping

virt device tree incorrectly uses 0xf0000000 on both sides of PCI IO
ports address space mapping. This results in incorrect port address
assignment in PCI IO BARs and subsequent crash on attempt to access
them. Use 0 as base address in PCI IO ports address space.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

parent 8b39da98

arch/xtensa/boot/dts/virt.dts

+1 −1

Original line number	Diff line number	Diff line
		@@ -56,7 +56,7 @@
		reg = <0xf0100000 0x03f00000>;

		// BUS_ADDRESS(3) CPU_PHYSICAL(1) SIZE(2)
		ranges = <0x01000000 0x0 0xf0000000 0xf0000000 0x0 0x00010000>,
		ranges = <0x01000000 0x0 0x00000000 0xf0000000 0x0 0x00010000>,
		<0x02000000 0x0 0xf4000000 0xf4000000 0x0 0x08000000>;

		// PCI_DEVICE(3) INT#(1) CONTROLLER(PHANDLE) CONTROLLER_DATA(2)

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