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kernel/linux-rt-4.4.41/include/linux/vexpress.h 1.44 KB
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  /*
   * This program is free software; you can redistribute it and/or modify
   * it under the terms of the GNU General Public License version 2 as
   * published by the Free Software Foundation.
   *
   * 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.
   *
   * Copyright (C) 2012 ARM Limited
   */
  
  #ifndef _LINUX_VEXPRESS_H
  #define _LINUX_VEXPRESS_H
  
  #include <linux/device.h>
  #include <linux/regmap.h>
  
  #define VEXPRESS_SITE_MB		0
  #define VEXPRESS_SITE_DB1		1
  #define VEXPRESS_SITE_DB2		2
  #define VEXPRESS_SITE_MASTER		0xf
  
  /* Config infrastructure */
  
  void vexpress_config_set_master(u32 site);
  u32 vexpress_config_get_master(void);
  
  void vexpress_config_lock(void *arg);
  void vexpress_config_unlock(void *arg);
  
  int vexpress_config_get_topo(struct device_node *node, u32 *site,
  		u32 *position, u32 *dcc);
  
  /* Config bridge API */
  
  struct vexpress_config_bridge_ops {
  	struct regmap * (*regmap_init)(struct device *dev, void *context);
  	void (*regmap_exit)(struct regmap *regmap, void *context);
  };
  
  struct device *vexpress_config_bridge_register(struct device *parent,
  		struct vexpress_config_bridge_ops *ops, void *context);
  
  /* Config regmap API */
  
  struct regmap *devm_regmap_init_vexpress_config(struct device *dev);
  
  /* Platform control */
  
  void vexpress_flags_set(u32 data);
  
  #endif