arch/arm/mach-iop13xx/iq81340mc.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * iq81340mc board support
   4  * Copyright (c) 2005-2006, Intel Corporation.
   5  */
   6 #include <linux/pci.h>
   7
   8 #include <mach/hardware.h>
   9 #include <asm/irq.h>
  10 #include <asm/mach/pci.h>
  11 #include <asm/mach-types.h>
  12 #include <asm/mach/arch.h>
  13 #include "pci.h"
  14 #include <asm/mach/time.h>
  15 #include <mach/time.h>
  16
  17 extern int init_atu; /* Flag to select which ATU(s) to initialize / disable */
  18
  19 static int __init
  20 iq81340mc_pcix_map_irq(const struct pci_dev *dev, u8 idsel, u8 pin)
  21 {
  22         switch (idsel) {
  23         case 1:
  24                 switch (pin) {
  25                 case 1: return ATUX_INTB;
  26                 case 2: return ATUX_INTC;
  27                 case 3: return ATUX_INTD;
  28                 case 4: return ATUX_INTA;
  29                 default: return -1;
  30                 }
  31         case 2:
  32                 switch (pin) {
  33                 case 1: return ATUX_INTC;
  34                 case 2: return ATUX_INTD;
  35                 case 3: return ATUX_INTC;
  36                 case 4: return ATUX_INTD;
  37                 default: return -1;
  38                 }
  39         default: return -1;
  40         }
  41 }
  42
  43 static struct hw_pci iq81340mc_pci __initdata = {
  44         .nr_controllers = 0,
  45         .setup          = iop13xx_pci_setup,
  46         .map_irq        = iq81340mc_pcix_map_irq,
  47         .scan           = iop13xx_scan_bus,
  48         .preinit        = iop13xx_pci_init,
  49 };
  50
  51 static int __init iq81340mc_pci_init(void)
  52 {
  53         iop13xx_atu_select(&iq81340mc_pci);
  54         pci_common_init(&iq81340mc_pci);
  55         iop13xx_map_pci_memory();
  56
  57         return 0;
  58 }
  59
  60 static void __init iq81340mc_init(void)
  61 {
  62         iop13xx_platform_init();
  63         iq81340mc_pci_init();
  64         iop13xx_add_tpmi_devices();
  65 }
  66
  67 static void __init iq81340mc_timer_init(void)
  68 {
  69         unsigned long bus_freq = iop13xx_core_freq() / iop13xx_xsi_bus_ratio();
  70         printk(KERN_DEBUG "%s: bus frequency: %lu\n", __func__, bus_freq);
  71         iop_init_time(bus_freq);
  72 }
  73
  74 MACHINE_START(IQ81340MC, "Intel IQ81340MC")
  75         /* Maintainer: Dan Williams <dan.j.williams@intel.com> */
  76         .atag_offset    = 0x100,
  77         .init_early     = iop13xx_init_early,
  78         .map_io         = iop13xx_map_io,
  79         .init_irq       = iop13xx_init_irq,
  80         .init_time      = iq81340mc_timer_init,
  81         .init_machine   = iq81340mc_init,
  82         .restart        = iop13xx_restart,
  83         .nr_irqs        = NR_IOP13XX_IRQS,
  84 MACHINE_END