mb/facebook/monolith: Configure COMB to 0x3e8
The 2nd COM port's base address defaults to 0x2f8. Current software
for this system expects the port at 0x3e8.
Configure COMB to use 0x3e8 instead of 0x2f8.
BUG=N/A
TEST=tested on facebook monolith
Change-Id: Ibb462bad5f0594e0b5c8dea6e02cd42d58d999ab
Signed-off-by: Wim Vervoorn <wvervoorn@eltan.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39499
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Frans Hendriks <fhendriks@eltan.com>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/mainboard/facebook/monolith/devicetree.cb b/src/mainboard/facebook/monolith/devicetree.cb
index e9fa2a14..e65fe3c 100644
--- a/src/mainboard/facebook/monolith/devicetree.cb
+++ b/src/mainboard/facebook/monolith/devicetree.cb
@@ -12,6 +12,12 @@
register "gpe0_dw1" = "GPP_D"
register "gpe0_dw2" = "GPP_E"
+ # Set the fixed lpc ranges
+ # enable COMA at 3f8 and COMB at 3e8 (instead of the default 2f8)
+ # enable the embedded controller
+ register "lpc_iod" = "0x0070"
+ register "lpc_ioe" = "LPC_IOE_COMA_EN | LPC_IOE_COMB_EN | LPC_IOE_EC_62_66"
+
# CPLD host command ranges are in 0x280-0x2BF
# EC PNP registers are at 0x6e and 0x6f
register "gen1_dec" = "0x003c0281"