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kernel/linux-imx6_3.14.28/arch/mips/bcm63xx/dev-dsp.c 1.42 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * Broadcom BCM63xx VoIP DSP registration
   *
   * This file is subject to the terms and conditions of the GNU General Public
   * License.  See the file "COPYING" in the main directory of this archive
   * for more details.
   *
   * Copyright (C) 2009 Florian Fainelli <florian@openwrt.org>
   */
  
  #include <linux/init.h>
  #include <linux/kernel.h>
  #include <linux/platform_device.h>
  
  #include <bcm63xx_cpu.h>
  #include <bcm63xx_dev_dsp.h>
  #include <bcm63xx_regs.h>
  #include <bcm63xx_io.h>
  
  static struct resource voip_dsp_resources[] = {
  	{
  		.start		= -1, /* filled at runtime */
  		.end		= -1, /* filled at runtime */
  		.flags		= IORESOURCE_MEM,
  	},
  	{
  		.start		= -1, /* filled at runtime */
  		.flags		= IORESOURCE_IRQ,
  	},
  };
  
  static struct platform_device bcm63xx_voip_dsp_device = {
  	.name		= "bcm63xx-voip-dsp",
  	.id		= -1,
  	.num_resources	= ARRAY_SIZE(voip_dsp_resources),
  	.resource	= voip_dsp_resources,
  };
  
  int __init bcm63xx_dsp_register(const struct bcm63xx_dsp_platform_data *pd)
  {
  	struct bcm63xx_dsp_platform_data *dpd;
  	u32 val;
  
  	/* Get the memory window */
  	val = bcm_mpi_readl(MPI_CSBASE_REG(pd->cs - 1));
  	val &= MPI_CSBASE_BASE_MASK;
  	voip_dsp_resources[0].start = val;
  	voip_dsp_resources[0].end = val + 0xFFFFFFF;
  	voip_dsp_resources[1].start = pd->ext_irq;
  
  	/* copy given platform data */
  	dpd = bcm63xx_voip_dsp_device.dev.platform_data;
  	memcpy(dpd, pd, sizeof (*pd));
  
  	return platform_device_register(&bcm63xx_voip_dsp_device);
  }