brya: Add CBI and FW_CONFIG supportstabilize-13821.B-main

This adds support for CBI and the first USB DB type field in FW_CONFIG.

BUG=b:173575131,b:180434685
BRANCH=none
TEST=buildall succeeds

Signed-off-by: Caveh Jalali <caveh@chromium.org>
Change-Id: If1d27fc100db9b814f90a9378d8dd19530a92bf4
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2706964
Reviewed-by: Keith Short <keithshort@chromium.org>
Reviewed-by: Sooraj Govindan <sooraj.govindan@intel.com>

1 files changed, 47 insertions, 0 deletions

diff --git a/baseboard/brya/cbi.c b/baseboard/brya/cbi.c
new file mode 100644
index 0000000000..295dea26a3
--- /dev/null
+++ b/baseboard/brya/cbi.c
@@ -0,0 +1,47 @@
+/* Copyright 2021 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#include "cbi_ec_fw_config.h"
+#include "common.h"
+#include "cros_board_info.h"
+#include "hooks.h"
+#include "system.h"
+
+#define CPRINTS(format, args...) cprints(CC_CHIPSET, format, ## args)
+#define CPRINTF(format, args...) cprintf(CC_CHIPSET, format, ## args)
+
+static uint8_t board_id;
+
+uint8_t get_board_id(void)
+{
+	return board_id;
+}
+
+__overridable void board_cbi_init(void)
+{
+}
+
+/*
+ * Read CBI from I2C EEPROM and initialize variables for board variants.
+ */
+static void cbi_init(void)
+{
+	uint32_t cbi_val;
+
+	/* Board ID */
+	if (cbi_get_board_version(&cbi_val) != EC_SUCCESS ||
+	    cbi_val > UINT8_MAX)
+		CPRINTS("CBI: Read Board ID failed");
+	else
+		board_id = cbi_val;
+
+	CPRINTS("Board ID: %d", board_id);
+
+	init_fw_config();
+
+	/* Allow the board project to make runtime changes based on CBI data */
+	board_cbi_init();
+}
+DECLARE_HOOK(HOOK_INIT, cbi_init, HOOK_PRIO_FIRST);