mb/google/asurada: Add new MT8192 mainboard "Asurada"

The placeholder functions and build rules for generating a minimal
firmware to run on MT8192 SOC based mainboard "Asurada".

Signed-off-by: CK Hu <ck.hu@mediatek.com>
Change-Id: Ic7c8bc8a4bba40d1b511823e09945be52198b247
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43963
Reviewed-by: Yu-Ping Wu <yupingso@google.com>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/mainboard/google/asurada/chromeos.c b/src/mainboard/google/asurada/chromeos.c
new file mode 100644
index 0000000000..8f9fa5334c
--- /dev/null
+++ b/src/mainboard/google/asurada/chromeos.c
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+
+#include <bootmode.h>
+#include <boot/coreboot_tables.h>
+#include <gpio.h>
+#include <security/tpm/tis.h>
+
+void fill_lb_gpios(struct lb_gpios *gpios)
+{
+}
+
+int get_write_protect_state(void)
+{
+	return 0;
+}
+
+int tis_plat_irq_status(void)
+{
+	return 0;
+}