google/cyan: convert to variant configuration

Setup cyan to be the baseboard for other Google Braswell
boards, to be added in subsequent commits:

- Keep code common to all Google Braswell boards in the baseboard,
and separate out the board-specific bits into the new cyan variant.

- Define the I2C ACPI devices such that they can be easily reused for
other variants.

- Switch the trackpad/touchscreen interrupts from edge to level,
for better performance/compatibility, as was done with all previous
Google boards.

- Add code to the baseboard to allow optional variant-specific
parameters to be used for both memory and silicon init.

- Remove superfluous includes, replace some hardcoded values with
variables, and correct typos/formatting errors.

Change-Id: Iabbbad16efa9cfa79338f4e94d0771779900d8d9
Signed-off-by: Matt DeVillier <matt.devillier@gmail.com>
Reviewed-on: https://review.coreboot.org/21126
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>

1 files changed, 22 insertions, 0 deletions

diff --git a/src/mainboard/google/cyan/spd/spd_util.h b/src/mainboard/google/cyan/spd/spd_util.h
new file mode 100644
index 0000000000..11d6eaa16d
--- /dev/null
+++ b/src/mainboard/google/cyan/spd/spd_util.h
@@ -0,0 +1,22 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * Copyright (C) 2017 Matt DeVillier
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef SPD_UTIL_H
+#define SPD_UTIL_H
+
+uint8_t get_ramid(void);
+int get_variant_spd_index(int ram_id, int *dual);
+
+#endif /* SPD_UTIL_H */