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kernel/linux-imx6_3.14.28/arch/arm/mach-msm/board-trout.c 2.55 KB
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  /* linux/arch/arm/mach-msm/board-trout.c
   *
   * Copyright (C) 2009 Google, Inc.
   * Author: Brian Swetland <swetland@google.com>
   *
   * This software is licensed under the terms of the GNU General Public
   * License version 2, as published by the Free Software Foundation, and
   * may be copied, distributed, and modified under those terms.
   *
   * 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.
   *
   */
  #define pr_fmt(fmt) "%s: " fmt, __func__
  
  #include <linux/kernel.h>
  #include <linux/init.h>
  #include <linux/platform_device.h>
  #include <linux/clkdev.h>
  
  #include <asm/system_info.h>
  #include <asm/mach-types.h>
  #include <asm/mach/arch.h>
  #include <asm/mach/map.h>
  #include <asm/setup.h>
  
  #include <mach/hardware.h>
  #include <mach/msm_iomap.h>
  
  #include "devices.h"
  #include "board-trout.h"
  #include "common.h"
  
  extern int trout_init_mmc(unsigned int);
  
  static struct platform_device *devices[] __initdata = {
  	&msm_clock_7x01a,
  	&msm_device_gpio_7201,
  	&msm_device_uart3,
  	&msm_device_smd,
  	&msm_device_nand,
  	&msm_device_hsusb,
  	&msm_device_i2c,
  };
  
  static void __init trout_init_early(void)
  {
  	arch_ioremap_caller = __msm_ioremap_caller;
  }
  
  static void __init trout_init_irq(void)
  {
  	msm_init_irq();
  }
  
  static void __init trout_fixup(struct tag *tags, char **cmdline,
  			       struct meminfo *mi)
  {
  	mi->nr_banks = 1;
  	mi->bank[0].start = PHYS_OFFSET;
  	mi->bank[0].size = (101*1024*1024);
  }
  
  static void __init trout_init(void)
  {
  	int rc;
  
  	platform_add_devices(devices, ARRAY_SIZE(devices));
  
  	if (IS_ENABLED(CONFIG_MMC)) {
  		rc = trout_init_mmc(system_rev);
  		if (rc)
  			pr_crit("MMC init failure (%d)
  ", rc);
  	}
  }
  
  static struct map_desc trout_io_desc[] __initdata = {
  	{
  		.virtual = TROUT_CPLD_BASE,
  		.pfn     = __phys_to_pfn(TROUT_CPLD_START),
  		.length  = TROUT_CPLD_SIZE,
  		.type    = MT_DEVICE_NONSHARED
  	}
  };
  
  static void __init trout_map_io(void)
  {
  	msm_map_common_io();
  	iotable_init(trout_io_desc, ARRAY_SIZE(trout_io_desc));
  
  #ifdef CONFIG_MSM_DEBUG_UART3
  	/* route UART3 to the "H2W" extended usb connector */
  	writeb(0x80, TROUT_CPLD_BASE + 0x00);
  #endif
  }
  
  static void __init trout_init_late(void)
  {
  	smd_debugfs_init();
  }
  
  MACHINE_START(TROUT, "HTC Dream")
  	.atag_offset	= 0x100,
  	.fixup		= trout_fixup,
  	.map_io		= trout_map_io,
  	.init_early	= trout_init_early,
  	.init_irq	= trout_init_irq,
  	.init_machine	= trout_init,
  	.init_late	= trout_init_late,
  	.init_time	= msm7x01_timer_init,
  MACHINE_END