release/src-rt-6.x.4708/linux/linux-2.6.36/arch/mips/pnx8550/common/platform.c

   1 /*
   2  * Platform device support for NXP PNX8550 SoCs
   3  *
   4  * Copyright 2005, Embedded Alley Solutions, Inc
   5  *
   6  * Based on arch/mips/au1000/common/platform.c
   7  * Platform device support for Au1x00 SoCs.
   8  *
   9  * Copyright 2004, Matt Porter <mporter@kernel.crashing.org>
  10  *
  11  * This file is licensed under the terms of the GNU General Public
  12  * License version 2.  This program is licensed "as is" without any
  13  * warranty of any kind, whether express or implied.
  14  */
  15 #include <linux/device.h>
  16 #include <linux/dma-mapping.h>
  17 #include <linux/kernel.h>
  18 #include <linux/init.h>
  19 #include <linux/resource.h>
  20 #include <linux/serial.h>
  21 #include <linux/serial_pnx8xxx.h>
  22 #include <linux/platform_device.h>
  23
  24 #include <int.h>
  25 #include <usb.h>
  26 #include <uart.h>
  27
  28 static struct resource pnx8550_usb_ohci_resources[] = {
  29         [0] = {
  30                 .start          = PNX8550_USB_OHCI_OP_BASE,
  31                 .end            = PNX8550_USB_OHCI_OP_BASE +
  32                                   PNX8550_USB_OHCI_OP_LEN,
  33                 .flags          = IORESOURCE_MEM,
  34         },
  35         [1] = {
  36                 .start          = PNX8550_INT_USB,
  37                 .end            = PNX8550_INT_USB,
  38                 .flags          = IORESOURCE_IRQ,
  39         },
  40 };
  41
  42 static struct resource pnx8550_uart_resources[] = {
  43         [0] = {
  44                 .start          = PNX8550_UART_PORT0,
  45                 .end            = PNX8550_UART_PORT0 + 0xfff,
  46                 .flags          = IORESOURCE_MEM,
  47         },
  48         [1] = {
  49                 .start          = PNX8550_UART_INT(0),
  50                 .end            = PNX8550_UART_INT(0),
  51                 .flags          = IORESOURCE_IRQ,
  52         },
  53         [2] = {
  54                 .start          = PNX8550_UART_PORT1,
  55                 .end            = PNX8550_UART_PORT1 + 0xfff,
  56                 .flags          = IORESOURCE_MEM,
  57         },
  58         [3] = {
  59                 .start          = PNX8550_UART_INT(1),
  60                 .end            = PNX8550_UART_INT(1),
  61                 .flags          = IORESOURCE_IRQ,
  62         },
  63 };
  64
  65 struct pnx8xxx_port pnx8xxx_ports[] = {
  66         [0] = {
  67                 .port   = {
  68                         .type           = PORT_PNX8XXX,
  69                         .iotype         = UPIO_MEM,
  70                         .membase        = (void __iomem *)PNX8550_UART_PORT0,
  71                         .mapbase        = PNX8550_UART_PORT0,
  72                         .irq            = PNX8550_UART_INT(0),
  73                         .uartclk        = 3692300,
  74                         .fifosize       = 16,
  75                         .flags          = UPF_BOOT_AUTOCONF,
  76                         .line           = 0,
  77                 },
  78         },
  79         [1] = {
  80                 .port   = {
  81                         .type           = PORT_PNX8XXX,
  82                         .iotype         = UPIO_MEM,
  83                         .membase        = (void __iomem *)PNX8550_UART_PORT1,
  84                         .mapbase        = PNX8550_UART_PORT1,
  85                         .irq            = PNX8550_UART_INT(1),
  86                         .uartclk        = 3692300,
  87                         .fifosize       = 16,
  88                         .flags          = UPF_BOOT_AUTOCONF,
  89                         .line           = 1,
  90                 },
  91         },
  92 };
  93
  94 /* The dmamask must be set for OHCI to work */
  95 static u64 ohci_dmamask = DMA_BIT_MASK(32);
  96
  97 static u64 uart_dmamask = DMA_BIT_MASK(32);
  98
  99 static struct platform_device pnx8550_usb_ohci_device = {
 100         .name           = "pnx8550-ohci",
 101         .id             = -1,
 102         .dev = {
 103                 .dma_mask               = &ohci_dmamask,
 104                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 105         },
 106         .num_resources  = ARRAY_SIZE(pnx8550_usb_ohci_resources),
 107         .resource       = pnx8550_usb_ohci_resources,
 108 };
 109
 110 static struct platform_device pnx8550_uart_device = {
 111         .name           = "pnx8xxx-uart",
 112         .id             = -1,
 113         .dev = {
 114                 .dma_mask               = &uart_dmamask,
 115                 .coherent_dma_mask      = DMA_BIT_MASK(32),
 116                 .platform_data = pnx8xxx_ports,
 117         },
 118         .num_resources  = ARRAY_SIZE(pnx8550_uart_resources),
 119         .resource       = pnx8550_uart_resources,
 120 };
 121
 122 static struct platform_device *pnx8550_platform_devices[] __initdata = {
 123         &pnx8550_usb_ohci_device,
 124         &pnx8550_uart_device,
 125 };
 126
 127 static int __init pnx8550_platform_init(void)
 128 {
 129         return platform_add_devices(pnx8550_platform_devices,
 130                                     ARRAY_SIZE(pnx8550_platform_devices));
 131 }
 132
 133 arch_initcall(pnx8550_platform_init);