• Soby Mathew's avatar
    Add CPU specific power management operations · add40351
    Soby Mathew authored
    This patch adds CPU core and cluster power down sequences to the CPU specific
    operations framework introduced in a earlier patch. Cortex-A53, Cortex-A57 and
    generic AEM sequences have been added. The latter is suitable for the
    Foundation and Base AEM FVPs. A pointer to each CPU's operations structure is
    saved in the per-cpu data so that it can be easily accessed during power down
    seqeunces.
    
    An optional platform API has been introduced to allow a platform to disable the
    Accelerator Coherency Port (ACP) during a cluster power down sequence. The weak
    definition of this function (plat_disable_acp()) does not take any action. It
    should be overriden with a strong definition if the ACP is present on a
    platform.
    
    Change-Id: I8d09bd40d2f528a28d2d3f19b77101178778685d
    add40351
aem_generic.h 1.75 KB
/*
 * Copyright (c) 2014, ARM Limited and Contributors. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * Neither the name of ARM nor the names of its contributors may be used
 * to endorse or promote products derived from this software without specific
 * prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef __AEM_GENERIC_H__
#define __AEM_GENERIC_H__

/* BASE AEM midr for revision 0 */
#define BASE_AEM_MIDR 0x410FD0F0

/* Foundation AEM midr for revision 0 */
#define FOUNDATION_AEM_MIDR  0x410FD000


#endif /* __AEM_GENERIC_H__ */