# # (C) COPYRIGHT 2020 Arm Limited. All rights reserved. # # This program is free software and is provided to you under the terms of the # GNU General Public License version 2 as published by the Free Software # Foundation, and any use by you of this program is subject to the terms # of such GNU licence. # # 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. # # You should have received a copy of the GNU General Public License # along with this program; if not, you can access it online at # http://www.gnu.org/licenses/gpl-2.0.html. # # SPDX-License-Identifier: GPL-2.0-only # config ARM_MHU tristate "Arm MHU Mailbox" depends on ARM_AMBA help Say Y here if you want to build the Arm MHU controller driver. The controller has support for two versions of the controller. One with 3 mailbox channels, the last of which can be used in Secure mode only and one with a single channel. config ARM_MHU_V2 tristate "Arm MHUv2 Mailbox" depends on ARM_AMBA help Say Y here if you want to build the Arm MHUv2 controller driver, which provides unidirectional mailboxes between processing elements.