arch/ppc/platforms/4xx/redwood5.c

   1 /*
   2  * Support for the IBM redwood5 eval board file
   3  *
   4  * Author: Armin Kuster <akuster@mvista.com>
   5  *
   6  * 2000-2001 (c) MontaVista, Software, Inc.  This file is licensed under
   7  * the terms of the GNU General Public License version 2.  This program
   8  * is licensed "as is" without any warranty of any kind, whether express
   9  * or implied.
  10  */
  11
  12 #include <linux/config.h>
  13 #include <linux/init.h>
  14 #include <linux/pagemap.h>
  15 #include <linux/platform_device.h>
  16 #include <linux/ioport.h>
  17 #include <asm/io.h>
  18 #include <asm/machdep.h>
  19 #include <asm/ppc4xx_pic.h>
  20
  21 /*
  22  * Define external IRQ senses and polarities.
  23  */
  24 unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
  25         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 0 */
  26         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 1 */
  27         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 2 */
  28         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 3 */
  29         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 4 */
  30         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 5 */
  31 };
  32
  33 static struct resource smc91x_resources[] = {
  34         [0] = {
  35                 .start  = SMC91111_BASE_ADDR,
  36                 .end    = SMC91111_BASE_ADDR + SMC91111_REG_SIZE - 1,
  37                 .flags  = IORESOURCE_MEM,
  38         },
  39         [1] = {
  40                 .start  = SMC91111_IRQ,
  41                 .end    = SMC91111_IRQ,
  42                 .flags  = IORESOURCE_IRQ,
  43         },
  44 };
  45
  46 static struct platform_device smc91x_device = {
  47         .name           = "smc91x",
  48         .id             = 0,
  49         .num_resources  = ARRAY_SIZE(smc91x_resources),
  50         .resource       = smc91x_resources,
  51 };
  52
  53 static struct platform_device *redwood5_devs[] __initdata = {
  54         &smc91x_device,
  55 };
  56
  57 static int __init
  58 redwood5_platform_add_devices(void)
  59 {
  60         return platform_add_devices(redwood5_devs, ARRAY_SIZE(redwood5_devs));
  61 }
  62
  63 void __init
  64 redwood5_setup_arch(void)
  65 {
  66         ppc4xx_setup_arch();
  67
  68 #ifdef CONFIG_DEBUG_BRINGUP
  69         printk("\n");
  70         printk("machine\t: %s\n", PPC4xx_MACHINE_NAME);
  71         printk("\n");
  72         printk("bi_s_version\t %s\n",      bip->bi_s_version);
  73         printk("bi_r_version\t %s\n",      bip->bi_r_version);
  74         printk("bi_memsize\t 0x%8.8x\t %dMBytes\n", bip->bi_memsize,bip->bi_memsize/(1024*1000));
  75         printk("bi_enetaddr %d\t %2.2x%2.2x%2.2x-%2.2x%2.2x%2.2x\n", 0,
  76         bip->bi_enetaddr[0], bip->bi_enetaddr[1],
  77         bip->bi_enetaddr[2], bip->bi_enetaddr[3],
  78         bip->bi_enetaddr[4], bip->bi_enetaddr[5]);
  79
  80         printk("bi_intfreq\t 0x%8.8x\t clock:\t %dMhz\n",
  81                bip->bi_intfreq, bip->bi_intfreq/ 1000000);
  82
  83         printk("bi_busfreq\t 0x%8.8x\t plb bus clock:\t %dMHz\n",
  84                 bip->bi_busfreq, bip->bi_busfreq / 1000000 );
  85         printk("bi_tbfreq\t 0x%8.8x\t TB freq:\t %dMHz\n",
  86                bip->bi_tbfreq, bip->bi_tbfreq/1000000);
  87
  88         printk("\n");
  89 #endif
  90         device_initcall(redwood5_platform_add_devices);
  91 }
  92
  93 void __init
  94 redwood5_map_io(void)
  95 {
  96         int i;
  97
  98         ppc4xx_map_io();
  99         for (i = 0; i < 16; i++) {
 100          unsigned long v, p;
 101
 102         /* 0x400x0000 -> 0xe00x0000 */
 103         p = 0x40000000 | (i << 16);
 104         v = STB04xxx_IO_BASE | (i << 16);
 105
 106         io_block_mapping(v, p, PAGE_SIZE,
 107                  _PAGE_NO_CACHE | pgprot_val(PAGE_KERNEL) | _PAGE_GUARDED);
 108         }
 109
 110
 111 }
 112
 113 void __init
 114 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 115               unsigned long r6, unsigned long r7)
 116 {
 117         ppc4xx_init(r3, r4, r5, r6, r7);
 118
 119         ppc_md.setup_arch = redwood5_setup_arch;
 120         ppc_md.setup_io_mappings = redwood5_map_io;
 121 }