LXR linux/arch/arm/mach-imx/mach-scb9328.c

   1/*
   2 * linux/arch/arm/mach-mx1/mach-scb9328.c
   3 *
   4 * Copyright (c) 2004 Sascha Hauer <saschahauer@web.de>
   5 * Copyright (c) 2006-2008 Juergen Beisert <jbeisert@netscape.net>
   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
  13#include <linux/platform_device.h>
  14#include <linux/mtd/physmap.h>
  15#include <linux/interrupt.h>
  16#include <linux/dm9000.h>
  17#include <linux/gpio.h>
  18
  19#include <asm/mach-types.h>
  20#include <asm/mach/arch.h>
  21#include <asm/mach/time.h>
  22
  23#include "common.h"
  24#include "devices-imx1.h"
  25#include "hardware.h"
  26#include "iomux-mx1.h"
  27
  28/*
  29 * This scb9328 has a 32MiB flash
  30 */
  31static struct resource flash_resource = {
  32        .start  = MX1_CS0_PHYS,
  33        .end    = MX1_CS0_PHYS + (32 * 1024 * 1024) - 1,
  34        .flags  = IORESOURCE_MEM,
  35};
  36
  37static struct physmap_flash_data scb_flash_data = {
  38        .width  = 2,
  39};
  40
  41static struct platform_device scb_flash_device = {
  42        .name           = "physmap-flash",
  43        .id             = 0,
  44        .dev = {
  45                .platform_data = &scb_flash_data,
  46        },
  47        .resource = &flash_resource,
  48        .num_resources = 1,
  49};
  50
  51/*
  52 * scb9328 has a DM9000 network controller
  53 * connected to CS5, with 16 bit data path
  54 * and interrupt connected to GPIO 3
  55 */
  56
  57/*
  58 * internal datapath is fixed 16 bit
  59 */
  60static struct dm9000_plat_data dm9000_platdata = {
  61        .flags  = DM9000_PLATF_16BITONLY,
  62};
  63
  64/*
  65 * the DM9000 drivers wants two defined address spaces
  66 * to gain access to address latch registers and the data path.
  67 */
  68static struct resource dm9000x_resources[] = {
  69        {
  70                .name   = "address area",
  71                .start  = MX1_CS5_PHYS,
  72                .end    = MX1_CS5_PHYS + 1,
  73                .flags  = IORESOURCE_MEM,       /* address access */
  74        }, {
  75                .name   = "data area",
  76                .start  = MX1_CS5_PHYS + 4,
  77                .end    = MX1_CS5_PHYS + 5,
  78                .flags  = IORESOURCE_MEM,       /* data access */
  79        }, {
  80                /* irq number is run-time assigned */
  81                .flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
  82        },
  83};
  84
  85static struct platform_device dm9000x_device = {
  86        .name           = "dm9000",
  87        .id             = 0,
  88        .num_resources  = ARRAY_SIZE(dm9000x_resources),
  89        .resource       = dm9000x_resources,
  90        .dev            = {
  91                .platform_data = &dm9000_platdata,
  92        }
  93};
  94
  95static const int mxc_uart1_pins[] = {
  96        PC9_PF_UART1_CTS,
  97        PC10_PF_UART1_RTS,
  98        PC11_PF_UART1_TXD,
  99        PC12_PF_UART1_RXD,
 100};
 101
 102static const struct imxuart_platform_data uart_pdata __initconst = {
 103        .flags = IMXUART_HAVE_RTSCTS,
 104};
 105
 106static struct platform_device *devices[] __initdata = {
 107        &scb_flash_device,
 108        &dm9000x_device,
 109};
 110
 111/*
 112 * scb9328_init - Init the CPU card itself
 113 */
 114static void __init scb9328_init(void)
 115{
 116        imx1_soc_init();
 117
 118        mxc_gpio_setup_multiple_pins(mxc_uart1_pins,
 119                        ARRAY_SIZE(mxc_uart1_pins), "UART1");
 120
 121        imx1_add_imx_uart0(&uart_pdata);
 122
 123        printk(KERN_INFO"Scb9328: Adding devices\n");
 124        dm9000x_resources[2].start = gpio_to_irq(IMX_GPIO_NR(3, 3));
 125        dm9000x_resources[2].end = gpio_to_irq(IMX_GPIO_NR(3, 3));
 126        platform_add_devices(devices, ARRAY_SIZE(devices));
 127}
 128
 129static void __init scb9328_timer_init(void)
 130{
 131        mx1_clocks_init(32000);
 132}
 133
 134MACHINE_START(SCB9328, "Synertronixx scb9328")
 135        /* Sascha Hauer */
 136        .atag_offset = 100,
 137        .map_io = mx1_map_io,
 138        .init_early = imx1_init_early,
 139        .init_irq = mx1_init_irq,
 140        .init_time      = scb9328_timer_init,
 141        .init_machine = scb9328_init,
 142        .restart        = mxc_restart,
 143MACHINE_END
 144