xtensa: virt: fix PCI IO ports mapping
authorMax Filippov <jcmvbkbc@gmail.com>
Tue, 15 Oct 2019 20:52:03 +0000 (13:52 -0700)
committerMax Filippov <jcmvbkbc@gmail.com>
Tue, 15 Oct 2019 21:29:53 +0000 (14:29 -0700)
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>
arch/xtensa/boot/dts/virt.dts

index a9dcd87b6eb1ee894fc540d173dcd77030ed54da..611b98a02a65e858bae4e5f9815a36eeab3c285c 100644 (file)
@@ -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)