LXR linux/arch/mips/nxp/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
  28static 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
  42static 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
  65struct 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 */
  95static u64 ohci_dmamask = DMA_BIT_MASK(32);
  96
  97static u64 uart_dmamask = DMA_BIT_MASK(32);
  98
  99static 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
 110static 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
 122static struct platform_device *pnx8550_platform_devices[] __initdata = {
 123        &pnx8550_usb_ohci_device,
 124        &pnx8550_uart_device,
 125};
 126
 127static int __init pnx8550_platform_init(void)
 128{
 129        return platform_add_devices(pnx8550_platform_devices,
 130                                    ARRAY_SIZE(pnx8550_platform_devices));
 131}
 132
 133arch_initcall(pnx8550_platform_init);
 134