google/buddy: Add board as variant of google/auron

Add google/buddy (Acer Chromeboase 24) as a variant of google/auron,
with the following changes:

- add buddy-specific variant code
- add handling to auron for buddy's lan init, which no other variants have
- add handling to auron's mainboard ACPI due buddy having different PCIe
  port assigments than all other variants

Ported from Chromium branch firmware-buddy-6301.202.B, commit
ebb82ce [Buddy: Lock management engine + SPI descriptor]

Test: build/boot Linux on google/buddy using SeaBIOS and Tianocore payloads

Change-Id: Ib76eef47677b72ddaef81a2decef189a5f20c20a
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/28613
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/src/mainboard/google/auron/mainboard.c b/src/mainboard/google/auron/mainboard.c
index 9eece731b0..2cbd0e78c2 100644
--- a/src/mainboard/google/auron/mainboard.c
+++ b/src/mainboard/google/auron/mainboard.c
@@ -20,9 +20,14 @@
 #include "variant.h"
 
 
+__weak void lan_init(void)
+{
+}
+
 static void mainboard_init(struct device *dev)
 {
 	mainboard_ec_init();
+	lan_init();
 }
 
 static int mainboard_smbios_data(struct device *dev, int *handle,