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kernel/linux-imx6_3.14.28/arch/arm/mach-sti/board-dt.c 1.22 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Copyright (C) 2013 STMicroelectronics (R&D) Limited.
   * Author(s): Srinivas Kandagatla <srinivas.kandagatla@st.com>
   *
   * 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.
   */
  
  #include <linux/irq.h>
  #include <linux/of_platform.h>
  #include <asm/hardware/cache-l2x0.h>
  #include <asm/mach/arch.h>
  
  #include "smp.h"
  
  void __init stih41x_l2x0_init(void)
  {
  	u32 way_size = 0x4;
  	u32 aux_ctrl;
  	/* may be this can be encoded in macros like BIT*() */
  	aux_ctrl = (0x1 << L2X0_AUX_CTRL_SHARE_OVERRIDE_SHIFT) |
  		(0x1 << L2X0_AUX_CTRL_DATA_PREFETCH_SHIFT) |
  		(0x1 << L2X0_AUX_CTRL_INSTR_PREFETCH_SHIFT) |
  		(way_size << L2X0_AUX_CTRL_WAY_SIZE_SHIFT);
  
  	l2x0_of_init(aux_ctrl, L2X0_AUX_CTRL_MASK);
  }
  
  static void __init stih41x_machine_init(void)
  {
  	stih41x_l2x0_init();
  	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
  }
  
  static const char *stih41x_dt_match[] __initdata = {
  	"st,stih415",
  	"st,stih416",
  	NULL
  };
  
  DT_MACHINE_START(STM, "STiH415/416 SoC with Flattened Device Tree")
  	.init_machine	= stih41x_machine_init,
  	.smp		= smp_ops(sti_smp_ops),
  	.dt_compat	= stih41x_dt_match,
  MACHINE_END