mirror of
https://github.com/u-boot/u-boot.git
synced 2024-12-05 02:23:31 +08:00
41364f0fbe
Add a common library for obtaining access to the Chrome OS EC. This is used by boards which need to talk to the EC. Reviewed-by: Vadim Bendebury <vbendeb@google.com> Tested-by: Vadim Bendebury <vbendeb@google.com> Signed-off-by: Vadim Bendebury <vbendeb@chromium.org> Signed-off-by: Simon Glass <sjg@chromium.org>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
/*
|
|
* Copyright (c) 2012 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.
|
|
*
|
|
* Alternatively, this software may be distributed under the terms of the
|
|
* GNU General Public License ("GPL") version 2 as published by the Free
|
|
* Software Foundation.
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <cros_ec.h>
|
|
DECLARE_GLOBAL_DATA_PTR;
|
|
|
|
struct local_info {
|
|
struct cros_ec_dev *cros_ec_dev; /* Pointer to cros_ec device */
|
|
int cros_ec_err; /* Error for cros_ec, 0 if ok */
|
|
};
|
|
|
|
static struct local_info local;
|
|
|
|
struct cros_ec_dev *board_get_cros_ec_dev(void)
|
|
{
|
|
return local.cros_ec_dev;
|
|
}
|
|
|
|
static int board_init_cros_ec_devices(const void *blob)
|
|
{
|
|
local.cros_ec_err = cros_ec_init(blob, &local.cros_ec_dev);
|
|
if (local.cros_ec_err)
|
|
return -1; /* Will report in board_late_init() */
|
|
|
|
return 0;
|
|
}
|
|
|
|
int cros_ec_board_init(void)
|
|
{
|
|
return board_init_cros_ec_devices(gd->fdt_blob);
|
|
}
|
|
|
|
int cros_ec_get_error(void)
|
|
{
|
|
return local.cros_ec_err;
|
|
}
|