arch/m68knommu/platform/523x/config.c

   1 /***************************************************************************/
   2
   3 /*
   4  *      linux/arch/m68knommu/platform/523x/config.c
   5  *
   6  *      Sub-architcture dependant initialization code for the Freescale
   7  *      523x CPUs.
   8  *
   9  *      Copyright (C) 1999-2005, Greg Ungerer (gerg@snapgear.com)
  10  *      Copyright (C) 2001-2003, SnapGear Inc. (www.snapgear.com)
  11  */
  12
  13 /***************************************************************************/
  14
  15 #include <linux/kernel.h>
  16 #include <linux/param.h>
  17 #include <linux/init.h>
  18 #include <linux/io.h>
  19 #include <asm/machdep.h>
  20 #include <asm/coldfire.h>
  21 #include <asm/mcfsim.h>
  22 #include <asm/mcfuart.h>
  23
  24 /***************************************************************************/
  25
  26 static struct mcf_platform_uart m523x_uart_platform[] = {
  27         {
  28                 .mapbase        = MCF_MBAR + MCFUART_BASE1,
  29                 .irq            = MCFINT_VECBASE + MCFINT_UART0,
  30         },
  31         {
  32                 .mapbase        = MCF_MBAR + MCFUART_BASE2,
  33                 .irq            = MCFINT_VECBASE + MCFINT_UART0 + 1,
  34         },
  35         {
  36                 .mapbase        = MCF_MBAR + MCFUART_BASE3,
  37                 .irq            = MCFINT_VECBASE + MCFINT_UART0 + 2,
  38         },
  39         { },
  40 };
  41
  42 static struct platform_device m523x_uart = {
  43         .name                   = "mcfuart",
  44         .id                     = 0,
  45         .dev.platform_data      = m523x_uart_platform,
  46 };
  47
  48 static struct resource m523x_fec_resources[] = {
  49         {
  50                 .start          = MCF_MBAR + 0x1000,
  51                 .end            = MCF_MBAR + 0x1000 + 0x7ff,
  52                 .flags          = IORESOURCE_MEM,
  53         },
  54         {
  55                 .start          = 64 + 23,
  56                 .end            = 64 + 23,
  57                 .flags          = IORESOURCE_IRQ,
  58         },
  59         {
  60                 .start          = 64 + 27,
  61                 .end            = 64 + 27,
  62                 .flags          = IORESOURCE_IRQ,
  63         },
  64         {
  65                 .start          = 64 + 29,
  66                 .end            = 64 + 29,
  67                 .flags          = IORESOURCE_IRQ,
  68         },
  69 };
  70
  71 static struct platform_device m523x_fec = {
  72         .name                   = "fec",
  73         .id                     = 0,
  74         .num_resources          = ARRAY_SIZE(m523x_fec_resources),
  75         .resource               = m523x_fec_resources,
  76 };
  77
  78 static struct platform_device *m523x_devices[] __initdata = {
  79         &m523x_uart,
  80         &m523x_fec,
  81 };
  82
  83 /***************************************************************************/
  84
  85 static void __init m523x_fec_init(void)
  86 {
  87         u16 par;
  88         u8 v;
  89
  90         /* Set multi-function pins to ethernet use */
  91         par = readw(MCF_IPSBAR + 0x100082);
  92         writew(par | 0xf00, MCF_IPSBAR + 0x100082);
  93         v = readb(MCF_IPSBAR + 0x100078);
  94         writeb(v | 0xc0, MCF_IPSBAR + 0x100078);
  95 }
  96
  97 /***************************************************************************/
  98
  99 static void m523x_cpu_reset(void)
 100 {
 101         local_irq_disable();
 102         __raw_writeb(MCF_RCR_SWRESET, MCF_IPSBAR + MCF_RCR);
 103 }
 104
 105 /***************************************************************************/
 106
 107 void __init config_BSP(char *commandp, int size)
 108 {
 109         mach_reset = m523x_cpu_reset;
 110 }
 111
 112 /***************************************************************************/
 113
 114 static int __init init_BSP(void)
 115 {
 116         m523x_fec_init();
 117         platform_add_devices(m523x_devices, ARRAY_SIZE(m523x_devices));
 118         return 0;
 119 }
 120
 121 arch_initcall(init_BSP);
 122
 123 /***************************************************************************/