From 41364f0fbe1e550a3326dd4310e41adec5ce30d7 Mon Sep 17 00:00:00 2001 From: Vadim Bendebury Date: Thu, 27 Feb 2014 13:26:02 -0700 Subject: cros_ec: Move EC interface into common library 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 Tested-by: Vadim Bendebury Signed-off-by: Vadim Bendebury Signed-off-by: Simon Glass --- common/Makefile | 1 + common/cros_ec.c | 44 ++++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+) create mode 100644 common/cros_ec.c (limited to 'common') diff --git a/common/Makefile b/common/Makefile index 04e9cdd5ff..e2ff0cb57d 100644 --- a/common/Makefile +++ b/common/Makefile @@ -230,6 +230,7 @@ obj-$(SPD) += ddr_spd.o obj-$(CONFIG_HWCONFIG) += hwconfig.o obj-$(CONFIG_BOUNCE_BUFFER) += bouncebuf.o obj-y += console.o +obj-$(CONFIG_CROS_EC) += cros_ec.o obj-y += dlmalloc.o obj-y += image.o obj-$(CONFIG_OF_LIBFDT) += image-fdt.o diff --git a/common/cros_ec.c b/common/cros_ec.c new file mode 100644 index 0000000000..b8ce1b581a --- /dev/null +++ b/common/cros_ec.c @@ -0,0 +1,44 @@ +/* + * 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 +#include +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; +} -- cgit v1.2.1