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authorKevin Paul Herbert <kevin@trippers.org>2016-08-04 14:35:30 -0700
committerPatrick Georgi <pgeorgi@google.com>2016-08-11 15:16:40 +0200
commitd7127b09ae6ccd86f45d9c19cac3cb74d980af54 (patch)
treee99e277cae8c216ca305cd6c28acdde902337b4b /src/mainboard/winent/pl6064/devicetree.cb
parentbb003c8126f7b6de3651661535e9400ab4e9117b (diff)
fsp_Broadwell_DE: Do not set IRQ3 and IRQ4 to level
When booting Linux as a coreboot payload, serial access does not work properly. This is because the setup code erroneously sets IRQ3 and IRQ4 to level. The UART on Broadwell is 8250/16550 compatible, thus ISA and edge-triggered. This change is not necessary on the non-FSP version of Broadwell support. The non-FSP version does not set these IRQ overrides. Fix verified booting Linux 4.6.0-rc2 on Intel Camelback Mountain CRB, using Intel FSP 1.0. Change-Id: I17b466676e7f4891c3e75ce6208e1580c9eaf742 Signed-off-by: Kevin Paul Herbert <kevin@trippers.org> Reviewed-on: https://review.coreboot.org/16065 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com>
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