src/mainboard/kontron/986lcd-m/mptable.c

   1 /* SPDX-License-Identifier: GPL-2.0-only */
   2
   3 #include <device/device.h>
   4 #include <arch/smp/mpspec.h>
   5 #include <arch/ioapic.h>
   6
   7 static void *smp_write_config_table(void *v)
   8 {
   9         struct mp_config_table *mc;
  10         struct device *riser = NULL, *firewire = NULL;
  11         int firewire_bus = 0, riser_bus = 0, isa_bus;
  12
  13         mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
  14
  15         mptable_init(mc);
  16
  17         smp_write_processors(mc);
  18
  19         firewire = dev_find_device(0x104c, 0x8023, 0);
  20         if (firewire) {
  21                 firewire_bus = firewire->upstream->secondary;
  22         }
  23
  24         /* If a riser card is used, this riser is detected on bus 4, so its secondary bus is the */
  25         /* highest bus number on the pci bus. */
  26         riser = dev_find_device(0x3388, 0x0021, 0);
  27         if (!riser)
  28                 riser = dev_find_device(0x3388, 0x0022, 0);
  29         if (riser) {
  30                 riser_bus = riser->downstream->secondary;
  31         }
  32
  33         mptable_write_buses(mc, NULL, &isa_bus);
  34
  35         /* I/O APICs:   APIC ID Version State           Address */
  36         u8 ioapic_id = smp_write_ioapic_from_hw(mc, IO_APIC_ADDR);
  37
  38         /* Legacy Interrupts */
  39         mptable_add_isa_interrupts(mc, isa_bus, ioapic_id, 0);
  40
  41         /* Builtin devices on Bus 0 */
  42         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x01, 0, ioapic_id, 0x10);
  43         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x02, 0, ioapic_id, 0x10);
  44         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1f, 1, ioapic_id, 0x13);
  45         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 0, ioapic_id, 0x17);
  46         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 1, ioapic_id, 0x13);
  47         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 2, ioapic_id, 0x12);
  48         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1d, 3, ioapic_id, 0x10);
  49         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1b, 0, ioapic_id, 0x10);
  50         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1c, 0, ioapic_id, 0x10);
  51         smp_write_pci_intsrc(mc, mp_INT, 0x0, 0x1c, 1, ioapic_id, 0x11);
  52
  53         /* Internal PCI bus (Firewire, PCI slot) */
  54         if (firewire) {
  55                 smp_write_pci_intsrc(mc, mp_INT, firewire_bus, 0x00, 0, ioapic_id, 0x10);
  56                 smp_write_pci_intsrc(mc, mp_INT, firewire_bus, 0x01, 0, ioapic_id, 0x14);
  57         }
  58
  59         if (riser) {
  60                 /* Old riser card */
  61                 /* riser slot top 5:8.0 */
  62                 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x08, 0, ioapic_id, 0x14);
  63                 /* riser slot middle 5:9.0 */
  64                 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x09, 0, ioapic_id, 0x15);
  65                 /* riser slot bottom 5:a.0 */
  66                 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0a, 0, ioapic_id, 0x16);
  67
  68                 /* New Riser Card */
  69                 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0c, 0, ioapic_id, 0x14);
  70                 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0d, 0, ioapic_id, 0x15);
  71                 smp_write_pci_intsrc(mc, mp_INT, riser_bus, 0x0e, 0, ioapic_id, 0x16);
  72         }
  73
  74         /* PCIe slot */
  75         smp_write_pci_intsrc(mc, mp_INT, 0x1, 0x00, 0, ioapic_id, 0x10);
  76         smp_write_pci_intsrc(mc, mp_INT, 0x1, 0x00, 1, ioapic_id, 0x11);
  77
  78         /* Onboard Ethernet */
  79         smp_write_pci_intsrc(mc, mp_INT, 0x2, 0x00, 0, ioapic_id, 0x10);
  80
  81         /* Local Ints:  Type    Polarity    Trigger     Bus ID   IRQ    APIC ID PIN# */
  82         mptable_lintsrc(mc, isa_bus);
  83
  84         /* Compute the checksums */
  85         return mptable_finalize(mc);
  86 }
  87
  88 unsigned long write_smp_table(unsigned long addr)
  89 {
  90         void *v;
  91         v = smp_write_floating_table(addr, 1);
  92         return (unsigned long)smp_write_config_table(v);
  93 }