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kernel/linux-rt-4.4.41/arch/arm/mach-hisi/hisilicon.c 2.07 KB
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  /*
   * (Hisilicon's SoC based) flattened device tree enabled machine
   *
   * Copyright (c) 2012-2013 Hisilicon Ltd.
   * Copyright (c) 2012-2013 Linaro Ltd.
   *
   * Author: Haojian Zhuang <haojian.zhuang@linaro.org>
   *
   * 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/clocksource.h>
  #include <linux/irqchip.h>
  
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  
  #define HI3620_SYSCTRL_PHYS_BASE		0xfc802000
  #define HI3620_SYSCTRL_VIRT_BASE		0xfe802000
  
  /*
   * This table is only for optimization. Since ioremap() could always share
   * the same mapping if it's defined as static IO mapping.
   *
   * Without this table, system could also work. The cost is some virtual address
   * spaces wasted since ioremap() may be called multi times for the same
   * IO space.
   */
  static struct map_desc hi3620_io_desc[] __initdata = {
  	{
  		/* sysctrl */
  		.pfn		= __phys_to_pfn(HI3620_SYSCTRL_PHYS_BASE),
  		.virtual	= HI3620_SYSCTRL_VIRT_BASE,
  		.length		= 0x1000,
  		.type		= MT_DEVICE,
  	},
  };
  
  static void __init hi3620_map_io(void)
  {
  	debug_ll_io_init();
  	iotable_init(hi3620_io_desc, ARRAY_SIZE(hi3620_io_desc));
  }
  
  static const char *const hi3xxx_compat[] __initconst = {
  	"hisilicon,hi3620-hi4511",
  	NULL,
  };
  
  DT_MACHINE_START(HI3620, "Hisilicon Hi3620 (Flattened Device Tree)")
  	.map_io		= hi3620_map_io,
  	.dt_compat	= hi3xxx_compat,
  MACHINE_END
  
  static const char *const hix5hd2_compat[] __initconst = {
  	"hisilicon,hix5hd2",
  	NULL,
  };
  
  DT_MACHINE_START(HIX5HD2_DT, "Hisilicon HIX5HD2 (Flattened Device Tree)")
  	.dt_compat	= hix5hd2_compat,
  MACHINE_END
  
  static const char *const hip04_compat[] __initconst = {
  	"hisilicon,hip04-d01",
  	NULL,
  };
  
  DT_MACHINE_START(HIP04, "Hisilicon HiP04 (Flattened Device Tree)")
  	.dt_compat	= hip04_compat,
  MACHINE_END
  
  static const char *const hip01_compat[] __initconst = {
  	"hisilicon,hip01",
  	"hisilicon,hip01-ca9x2",
  	NULL,
  };
  
  DT_MACHINE_START(HIP01, "Hisilicon HIP01 (Flattened Device Tree)")
  	.dt_compat      = hip01_compat,
  MACHINE_END