release/src-rt-6.x.4708/linux/linux-2.6.36/arch/arm/mach-iop33x/uart.c

   1 /*
   2  * arch/arm/mach-iop33x/uart.c
   3  *
   4  * Author: Dave Jiang (dave.jiang@intel.com)
   5  * Copyright (C) 2004 Intel Corporation.
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #include <linux/mm.h>
  13 #include <linux/init.h>
  14 #include <linux/major.h>
  15 #include <linux/fs.h>
  16 #include <linux/platform_device.h>
  17 #include <linux/serial.h>
  18 #include <linux/tty.h>
  19 #include <linux/serial_8250.h>
  20 #include <linux/io.h>
  21 #include <asm/pgtable.h>
  22 #include <asm/page.h>
  23 #include <asm/mach/map.h>
  24 #include <asm/setup.h>
  25 #include <asm/system.h>
  26 #include <asm/memory.h>
  27 #include <mach/hardware.h>
  28 #include <asm/hardware/iop3xx.h>
  29 #include <asm/mach/arch.h>
  30
  31 #define IOP33X_UART_XTAL 33334000
  32
  33 static struct plat_serial8250_port iop33x_uart0_data[] = {
  34         {
  35                 .membase        = (char *)IOP33X_UART0_VIRT,
  36                 .mapbase        = IOP33X_UART0_PHYS,
  37                 .irq            = IRQ_IOP33X_UART0,
  38                 .uartclk        = IOP33X_UART_XTAL,
  39                 .regshift       = 2,
  40                 .iotype         = UPIO_MEM,
  41                 .flags          = UPF_SKIP_TEST,
  42         },
  43         { },
  44 };
  45
  46 static struct resource iop33x_uart0_resources[] = {
  47         [0] = {
  48                 .start  = IOP33X_UART0_PHYS,
  49                 .end    = IOP33X_UART0_PHYS + 0x3f,
  50                 .flags  = IORESOURCE_MEM,
  51         },
  52         [1] = {
  53                 .start  = IRQ_IOP33X_UART0,
  54                 .end    = IRQ_IOP33X_UART0,
  55                 .flags  = IORESOURCE_IRQ,
  56         },
  57 };
  58
  59 struct platform_device iop33x_uart0_device = {
  60         .name           = "serial8250",
  61         .id             = PLAT8250_DEV_PLATFORM,
  62         .dev            = {
  63                 .platform_data          = iop33x_uart0_data,
  64         },
  65         .num_resources  = 2,
  66         .resource       = iop33x_uart0_resources,
  67 };
  68
  69
  70 static struct resource iop33x_uart1_resources[] = {
  71         [0] = {
  72                 .start  = IOP33X_UART1_PHYS,
  73                 .end    = IOP33X_UART1_PHYS + 0x3f,
  74                 .flags  = IORESOURCE_MEM,
  75         },
  76         [1] = {
  77                 .start  = IRQ_IOP33X_UART1,
  78                 .end    = IRQ_IOP33X_UART1,
  79                 .flags  = IORESOURCE_IRQ,
  80         },
  81 };
  82
  83 static struct plat_serial8250_port iop33x_uart1_data[] = {
  84         {
  85                 .membase        = (char *)IOP33X_UART1_VIRT,
  86                 .mapbase        = IOP33X_UART1_PHYS,
  87                 .irq            = IRQ_IOP33X_UART1,
  88                 .uartclk        = IOP33X_UART_XTAL,
  89                 .regshift       = 2,
  90                 .iotype         = UPIO_MEM,
  91                 .flags          = UPF_SKIP_TEST,
  92         },
  93         { },
  94 };
  95
  96 struct platform_device iop33x_uart1_device = {
  97         .name           = "serial8250",
  98         .id             = PLAT8250_DEV_PLATFORM1,
  99         .dev            = {
 100                 .platform_data          = iop33x_uart1_data,
 101         },
 102         .num_resources  = 2,
 103         .resource       = iop33x_uart1_resources,
 104 };