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   1 /*
   2  * arch/ppc/platforms/4xx/redwood5.c
   3  *
   4  * Support for the IBM redwood5 eval board file
   5  *
   6  * Author: Armin Kuster <akuster@mvista.com>
   7  *
   8  * 2000-2001 (c) MontaVista, Software, Inc.  This file is licensed under
   9  * the terms of the GNU General Public License version 2.  This program
  10  * is licensed "as is" without any warranty of any kind, whether express
  11  * or implied.
  12  */
  13
  14 #include <linux/config.h>
  15 #include <linux/init.h>
  16 #include <linux/pagemap.h>
  17 #include <linux/platform_device.h>
  18 #include <linux/ioport.h>
  19 #include <asm/io.h>
  20 #include <asm/machdep.h>
  21 #include <asm/ppc4xx_pic.h>
  22
  23 /*
  24  * Define external IRQ senses and polarities.
  25  */
  26 unsigned char ppc4xx_uic_ext_irq_cfg[] __initdata = {
  27         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 0 */
  28         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 1 */
  29         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 2 */
  30         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 3 */
  31         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 4 */
  32         (IRQ_SENSE_LEVEL | IRQ_POLARITY_NEGATIVE),      /* Ext Int 5 */
  33 };
  34
  35 static struct resource smc91x_resources[] = {
  36         [0] = {
  37                 .start  = SMC91111_BASE_ADDR,
  38                 .end    = SMC91111_BASE_ADDR + SMC91111_REG_SIZE - 1,
  39                 .flags  = IORESOURCE_MEM,
  40         },
  41         [1] = {
  42                 .start  = SMC91111_IRQ,
  43                 .end    = SMC91111_IRQ,
  44                 .flags  = IORESOURCE_IRQ,
  45         },
  46 };
  47
  48 static struct platform_device smc91x_device = {
  49         .name           = "smc91x",
  50         .id             = 0,
  51         .num_resources  = ARRAY_SIZE(smc91x_resources),
  52         .resource       = smc91x_resources,
  53 };
  54
  55 static struct platform_device *redwood5_devs[] __initdata = {
  56         &smc91x_device,
  57 };
  58
  59 static int __init
  60 redwood5_platform_add_devices(void)
  61 {
  62         return platform_add_devices(redwood5_devs, ARRAY_SIZE(redwood5_devs));
  63 }
  64
  65 void __init
  66 redwood5_setup_arch(void)
  67 {
  68         ppc4xx_setup_arch();
  69
  70 #ifdef CONFIG_DEBUG_BRINGUP
  71         printk("\n");
  72         printk("machine\t: %s\n", PPC4xx_MACHINE_NAME);
  73         printk("\n");
  74         printk("bi_s_version\t %s\n",      bip->bi_s_version);
  75         printk("bi_r_version\t %s\n",      bip->bi_r_version);
  76         printk("bi_memsize\t 0x%8.8x\t %dMBytes\n", bip->bi_memsize,bip->bi_memsize/(1024*1000));
  77         printk("bi_enetaddr %d\t %2.2x%2.2x%2.2x-%2.2x%2.2x%2.2x\n", 0,
  78         bip->bi_enetaddr[0], bip->bi_enetaddr[1],
  79         bip->bi_enetaddr[2], bip->bi_enetaddr[3],
  80         bip->bi_enetaddr[4], bip->bi_enetaddr[5]);
  81
  82         printk("bi_intfreq\t 0x%8.8x\t clock:\t %dMhz\n",
  83                bip->bi_intfreq, bip->bi_intfreq/ 1000000);
  84
  85         printk("bi_busfreq\t 0x%8.8x\t plb bus clock:\t %dMHz\n",
  86                 bip->bi_busfreq, bip->bi_busfreq / 1000000 );
  87         printk("bi_tbfreq\t 0x%8.8x\t TB freq:\t %dMHz\n",
  88                bip->bi_tbfreq, bip->bi_tbfreq/1000000);
  89
  90         printk("\n");
  91 #endif
  92         device_initcall(redwood5_platform_add_devices);
  93 }
  94
  95 void __init
  96 redwood5_map_io(void)
  97 {
  98         int i;
  99
 100         ppc4xx_map_io();
 101         for (i = 0; i < 16; i++) {
 102          unsigned long v, p;
 103
 104         /* 0x400x0000 -> 0xe00x0000 */
 105         p = 0x40000000 | (i << 16);
 106         v = STB04xxx_IO_BASE | (i << 16);
 107
 108         io_block_mapping(v, p, PAGE_SIZE,
 109                  _PAGE_NO_CACHE | pgprot_val(PAGE_KERNEL) | _PAGE_GUARDED);
 110         }
 111
 112
 113 }
 114
 115 void __init
 116 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
 117               unsigned long r6, unsigned long r7)
 118 {
 119         ppc4xx_init(r3, r4, r5, r6, r7);
 120
 121         ppc_md.setup_arch = redwood5_setup_arch;
 122         ppc_md.setup_io_mappings = redwood5_map_io;
 123 }