arch/ppc/platforms/4xx/cpci405.c

   1 /*
   2  * arch/ppc/platforms/cpci405.c
   3  *
   4  * Board setup routines for the esd CPCI-405 cPCI Board.
   5  *
   6  * Author: Stefan Roese
   7  *         stefan.roese@esd-electronics.com
   8  *
   9  * Copyright 2001 esd electronic system design - hannover germany
  10  *
  11  * This program is free software; you can redistribute  it and/or modify it
  12  * under  the terms of  the GNU General  Public License as published by the
  13  * Free Software Foundation;  either version 2 of the  License, or (at your
  14  * option) any later version.
  15  *
  16  */
  17
  18 #include <linux/config.h>
  19 #include <linux/init.h>
  20 #include <linux/pci.h>
  21 #include <asm/system.h>
  22 #include <asm/pci-bridge.h>
  23 #include <asm/machdep.h>
  24 #include <asm/todc.h>
  25 #include <asm/ocp.h>
  26
  27 void *cpci405_nvram;
  28
  29 /*
  30  * Some IRQs unique to CPCI-405.
  31  */
  32 int __init
  33 ppc405_map_irq(struct pci_dev *dev, unsigned char idsel, unsigned char pin)
  34 {
  35         static char pci_irq_table[][4] =
  36         /*
  37          *      PCI IDSEL/INTPIN->INTLINE
  38          *      A       B       C       D
  39          */
  40         {
  41                 {28,    28,     28,     28},    /* IDSEL 15 - cPCI slot 8 */
  42                 {29,    29,     29,     29},    /* IDSEL 16 - cPCI slot 7 */
  43                 {30,    30,     30,     30},    /* IDSEL 17 - cPCI slot 6 */
  44                 {27,    27,     27,     27},    /* IDSEL 18 - cPCI slot 5 */
  45                 {28,    28,     28,     28},    /* IDSEL 19 - cPCI slot 4 */
  46                 {29,    29,     29,     29},    /* IDSEL 20 - cPCI slot 3 */
  47                 {30,    30,     30,     30},    /* IDSEL 21 - cPCI slot 2 */
  48         };
  49         const long min_idsel = 15, max_idsel = 21, irqs_per_slot = 4;
  50         return PCI_IRQ_TABLE_LOOKUP;
  51 };
  52
  53 void __init
  54 cpci405_setup_arch(void)
  55 {
  56         ppc4xx_setup_arch();
  57
  58         ibm_ocp_set_emac(0, 0);
  59
  60         TODC_INIT(TODC_TYPE_MK48T35, cpci405_nvram, cpci405_nvram, cpci405_nvram, 8);
  61 }
  62
  63 void __init
  64 cpci405_map_io(void)
  65 {
  66         ppc4xx_map_io();
  67         cpci405_nvram = ioremap(CPCI405_NVRAM_PADDR, CPCI405_NVRAM_SIZE);
  68 }
  69
  70 void __init
  71 platform_init(unsigned long r3, unsigned long r4, unsigned long r5,
  72               unsigned long r6, unsigned long r7)
  73 {
  74         ppc4xx_init(r3, r4, r5, r6, r7);
  75
  76         ppc_md.setup_arch = cpci405_setup_arch;
  77         ppc_md.setup_io_mappings = cpci405_map_io;
  78
  79         ppc_md.time_init = todc_time_init;
  80         ppc_md.set_rtc_time = todc_set_rtc_time;
  81         ppc_md.get_rtc_time = todc_get_rtc_time;
  82         ppc_md.nvram_read_val = todc_direct_read_val;
  83         ppc_md.nvram_write_val = todc_direct_write_val;
  84 }