git.oblomov.eu Git - linux-2.6/blob - 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/init.h>
  13 #include <linux/pagemap.h>
  14 #include <linux/platform_device.h>
  15 #include <linux/ioport.h>
  16 #include <asm/io.h>
  17 #include <asm/machdep.h>
  18 #include <asm/ppc4xx_pic.h>
  19
  20 /*
  21  * Define external IRQ senses and polarities.
  22  */
  23 unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
  24         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 0 */
  25         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 1 */
  26         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 2 */
  27         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 3 */
  28         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 4 */
  29         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 5 */
  30 };
  31
  32 static struct resource smc91x_resources[] = {
  33         [0] = {
  34                 .start  = SMC91111_BASE_ADDR,
  35                 .end    = SMC91111_BASE_ADDR + SMC91111_REG_SIZE - 1,
  36                 .flags  = IORESOURCE_MEM,
  37         },
  38         [1] = {
  39                 .start  = SMC91111_IRQ,
  40                 .end    = SMC91111_IRQ,
  41                 .flags  = IORESOURCE_IRQ,
  42         },
  43 };
  44
  45 static struct platform_device smc91x_device = {
  46         .name           = "smc91x",
  47         .id             = 0,
  48         .num_resources  = ARRAY_SIZE(smc91x_resources),
  49         .resource       = smc91x_resources,
  50 };
  51
  52 static struct platform_device *redwood5_devs[] __initdata = {
  53         &smc91x_device,
  54 };
  55
  56 static int __init
  57 redwood5_platform_add_devices(void)
  58 {
  59         return platform_add_devices(redwood5_devs, ARRAY_SIZE(redwood5_devs));
  60 }
  61
  62 void __init
  63 redwood5_setup_arch(void)
  64 {
  65         ppc4xx_setup_arch();
  66
  67 #ifdef CONFIG_DEBUG_BRINGUP
  68         printk("\n");
  69         printk("machine\t: %s\n", PPC4xx_MACHINE_NAME);
  70         printk("\n");
  71         printk("bi_s_version\t %s\n",      bip->bi_s_version);
  72         printk("bi_r_version\t %s\n",      bip->bi_r_version);
  73         printk("bi_memsize\t 0x%8.8x\t %dMBytes\n", bip->bi_memsize,bip->bi_memsize/(1024*1000));
  74         printk("bi_enetaddr %d\t %2.2x%2.2x%2.2x-%2.2x%2.2x%2.2x\n", 0,
  75         bip->bi_enetaddr[0], bip->bi_enetaddr[1],
  76         bip->bi_enetaddr[2], bip->bi_enetaddr[3],
  77         bip->bi_enetaddr[4], bip->bi_enetaddr[5]);
  78
  79         printk("bi_intfreq\t 0x%8.8x\t clock:\t %dMhz\n",
  80                bip->bi_intfreq, bip->bi_intfreq/ 1000000);
  81
  82         printk("bi_busfreq\t 0x%8.8x\t plb bus clock:\t %dMHz\n",
  83                 bip->bi_busfreq, bip->bi_busfreq / 1000000 );
  84         printk("bi_tbfreq\t 0x%8.8x\t TB freq:\t %dMHz\n",
  85                bip->bi_tbfreq, bip->bi_tbfreq/1000000);
  86
  87         printk("\n");
  88 #endif
  89         device_initcall(redwood5_platform_add_devices);
  90 }
  91
  92 void __init
  93 redwood5_map_io(void)
  94 {
  95         int i;
  96
  97         ppc4xx_map_io();
  98         for (i = 0; i < 16; i++) {
  99          unsigned long v, p;
 100
 101         /* 0x400x0000 -> 0xe00x0000 */
 102         p = 0x40000000 | (i << 16);
 103         v = STB04xxx_IO_BASE | (i << 16);
 104
 105         io_block_mapping(v, p, PAGE_SIZE,
 106                  _PAGE_NO_CACHE | pgprot_val(PAGE_KERNEL) | _PAGE_GUARDED);
 107         }
 108
 109
 110 }
 111
 112 void __init
 113 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 114               unsigned long r6, unsigned long r7)
 115 {
 116         ppc4xx_init(r3, r4, r5, r6, r7);
 117
 118         ppc_md.setup_arch = redwood5_setup_arch;
 119         ppc_md.setup_io_mappings = redwood5_map_io;
 120 }