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kernel/linux-imx6_3.14.28/arch/mips/bcm63xx/dev-uart.c 1.73 KB
6b13f685e   김민수   BSP 최초 추가
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  /*
   * 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) 2008 Maxime Bizon <mbizon@freebox.fr>
   */
  
  #include <linux/init.h>
  #include <linux/kernel.h>
  #include <linux/platform_device.h>
  #include <bcm63xx_cpu.h>
  
  static struct resource uart0_resources[] = {
  	{
  		/* start & end filled at runtime */
  		.flags		= IORESOURCE_MEM,
  	},
  	{
  		/* start filled at runtime */
  		.flags		= IORESOURCE_IRQ,
  	},
  };
  
  static struct resource uart1_resources[] = {
  	{
  		/* start & end filled at runtime */
  		.flags		= IORESOURCE_MEM,
  	},
  	{
  		/* start filled at runtime */
  		.flags		= IORESOURCE_IRQ,
  	},
  };
  
  static struct platform_device bcm63xx_uart_devices[] = {
  	{
  		.name		= "bcm63xx_uart",
  		.id		= 0,
  		.num_resources	= ARRAY_SIZE(uart0_resources),
  		.resource	= uart0_resources,
  	},
  
  	{
  		.name		= "bcm63xx_uart",
  		.id		= 1,
  		.num_resources	= ARRAY_SIZE(uart1_resources),
  		.resource	= uart1_resources,
  	}
  };
  
  int __init bcm63xx_uart_register(unsigned int id)
  {
  	if (id >= ARRAY_SIZE(bcm63xx_uart_devices))
  		return -ENODEV;
  
  	if (id == 1 && (!BCMCPU_IS_3368() && !BCMCPU_IS_6358() &&
  		!BCMCPU_IS_6368()))
  		return -ENODEV;
  
  	if (id == 0) {
  		uart0_resources[0].start = bcm63xx_regset_address(RSET_UART0);
  		uart0_resources[0].end = uart0_resources[0].start +
  			RSET_UART_SIZE - 1;
  		uart0_resources[1].start = bcm63xx_get_irq_number(IRQ_UART0);
  	}
  
  	if (id == 1) {
  		uart1_resources[0].start = bcm63xx_regset_address(RSET_UART1);
  		uart1_resources[0].end = uart1_resources[0].start +
  			RSET_UART_SIZE - 1;
  		uart1_resources[1].start = bcm63xx_get_irq_number(IRQ_UART1);
  	}
  
  	return platform_device_register(&bcm63xx_uart_devices[id]);
  }