Petr Cvek has uploaded this change for review. ( https://review.coreboot.org/c/coreboot/+/35671 )
Change subject: mb/kontron: Add gameport base for gameport to fix enumeration ......................................................................
mb/kontron: Add gameport base for gameport to fix enumeration
A missing definition of PNP io 0x60 base will cause an automatic address assignment during PCI/PNP enumeration, which won't obey already set limit 0x7ff. This will cause the enumeration to fail as other devices already have the values enabled.
The symptoms are: not working USB, PS/2, garbled UART console, PCIe GPUs and crashes. Probably because of wrongly assigned IO ports.
Example of log (shortened):
Done reading resources. Setting resources... !! Resource didn't fit !! aligned base 1000 size 1000 limit 2e7 1fff needs to be <= 2e7 (limit) PCI: 00:1c.0 1c * [0x0 - 0xfff] io !! Resource didn't fit !! aligned base 1000 size 1000 limit 2e7 1fff needs to be <= 2e7 (limit) PCI: 00:1c.1 1c * [0x1000 - 0x1fff] io !! Resource didn't fit !! aligned base 1000 size 1000 limit 2e7 1fff needs to be <= 2e7 (limit) PCI: 00:1c.2 1c * [0x2000 - 0x2fff] io !! Resource didn't fit !! aligned base 400 size 10 limit 2e7 40f needs to be <= 2e7 (limit) PCI: 00:1f.2 20 * [0x3080 - 0x308f] io !! Resource didn't fit !! ... ERROR: PCI: 00:02.0 14 io size: 0x0000000008 not assigned ... ERROR: PCI: 00:1f.2 10 io size: 0x0000000008 not assigned ERROR: PCI: 00:1f.2 14 io size: 0x0000000004 not assigned ERROR: PCI: 00:1f.2 18 io size: 0x0000000008 not assigned ERROR: PCI: 00:1f.2 1c io size: 0x0000000004 not assigned ERROR: PCI: 00:1f.2 20 io size: 0x0000000010 not assigned ... PCI: 00:1b.0 subsystem <- 8086/27d8 PCI: 00:1b.0 cmd <- 102 PCI: 00:1c.0 bridge ctrl <- 0003 PCI: 00:1c.0 subsystem <- 8086/27d0 PCI: 00:1c.0 cmd <- 107 PCI: 00:1c.1 brids70c01mcu0PeC: 0 dV0i8s0immicrocode: upd10a00000y0025 x666600CPU physiaB 0 0 e k MTRR cheaeu60zeAttemfWaiting for 1st Sot AP: slot 1 apic_L0ecl0zsax a aInitiNntt kac:oIG0 Ua dUrSGSGL Ct0C07fintel_vga_int15_h VGA Option ROM wa7..Azalia0Azalia: codkAbCiPCI: 00:1c.0 init finished
(ports probably started to collide after 00:1c.0). A debug run with compiled SPEW shows the problem with enumeration:
PCI: 00:1f.1 18 * [0x50b8 - 0x50bf] io PCI: 00:1f.2 10 * [0x50c0 - 0x50c7] io PCI: 00:1f.2 18 * [0x50c8 - 0x50cf] io PCI: 00:1f.1 14 * [0x50d0 - 0x50d3] io PCI: 00:1f.1 1c * [0x50d4 - 0x50d7] io PCI: 00:1f.2 14 * [0x50d8 - 0x50db] io PCI: 00:1f.2 1c * [0x50dc - 0x50df] io PNP: 002e.7 60 * [0x50e0 - 0x50e0] io <- gameport base DOMAIN: 0000 io: base: 50e1 size: 40e1 align: 12 gran: 0 limit: 7ff done
Notice a weird base for DOMAIN, along with the limit.
Adding a definition of gameport (0x220) fixes the problems.
The gameport should be still disabled thanks to disable bits (but W83627THF datasheet is somewhat chaotic). I didn't find any info if the gameport is available on some pads.
Signed-off-by: Petr Cvek petrcvekcz@gmail.com Change-Id: Ie8e42552ac5e638e91e5c290655edcce1f64e408 --- M src/mainboard/kontron/986lcd-m/devicetree.cb 1 file changed, 1 insertion(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/71/35671/1
diff --git a/src/mainboard/kontron/986lcd-m/devicetree.cb b/src/mainboard/kontron/986lcd-m/devicetree.cb index 5db7551..08b0703 100644 --- a/src/mainboard/kontron/986lcd-m/devicetree.cb +++ b/src/mainboard/kontron/986lcd-m/devicetree.cb @@ -79,6 +79,7 @@ irq 0xf0 = 0x82 # HW accel A20. end device pnp 2e.7 on # GPIO1, GAME, MIDI + io 0x60 = 0x220 io 0x62 = 0x330 irq 0x70 = 9 end