mb/google/brya: Add EC I/O decode windows
BUG=b:180013349
TEST=console shows successful EC <-> SoC communications
Signed-off-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Change-Id: Ie09dcfa8b0de2706ffc236a978dc159594e327c8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50568
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: EricR Lai <ericr_lai@compal.corp-partner.google.com>
diff --git a/src/mainboard/google/brya/variants/baseboard/devicetree.cb b/src/mainboard/google/brya/variants/baseboard/devicetree.cb
index b6b49dc..c992f4f 100644
--- a/src/mainboard/google/brya/variants/baseboard/devicetree.cb
+++ b/src/mainboard/google/brya/variants/baseboard/devicetree.cb
@@ -3,6 +3,12 @@
device lapic 0 on end
end
+ # EC host command ranges are in 0x800-0x8ff & 0x200-0x20f
+ register "gen1_dec" = "0x00fc0801"
+ register "gen2_dec" = "0x000c0201"
+ # EC memory map range is 0x900-0x9ff
+ register "gen3_dec" = "0x00fc0901"
+
# This disabled autonomous GPIO power management, otherwise
# old cr50 FW only supports short pulses; need to clarify
# the minimum PCH IRQ pulse width with Intel, b/180111628