2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 AMD
5 * (Written by Yinghai Lu <yinghailu@amd.com> for AMD)
6 * Copyright (C) 2007 Philipp Degler <pdegler@rumms.uni-mannheim.de>
7 * (Thanks to LSRA University of Mannheim for their support)
8 * Copyright (C) 2008 Jonathan A. Kollasch <jakllsch@kollasch.net>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <console/console.h>
26 #include <arch/smp/mpspec.h>
27 #include <arch/ioapic.h>
28 #include <device/pci.h>
31 #include "southbridge/via/vt8237r/vt8237r.h"
33 static void *smp_write_config_table(void *v)
35 static const char sig[4] = "PCMP";
36 static const char oem[8] = "COREBOOT";
37 static const char productid[12] = "PC2500 ";
38 struct mp_config_table *mc;
42 mc = (void *)(((char *)v) + SMP_FLOATING_TABLE_LEN);
43 memset(mc, 0, sizeof(*mc));
45 memcpy(mc->mpc_signature, sig, sizeof(sig));
46 mc->mpc_length = sizeof(*mc); /* initially just the header */
48 mc->mpc_checksum = 0; /* not yet computed */
49 memcpy(mc->mpc_oem, oem, sizeof(oem));
50 memcpy(mc->mpc_productid, productid, sizeof(productid));
53 mc->mpc_entry_count = 0; /* No entries yet... */
54 mc->mpc_lapic = LAPIC_ADDR;
59 smp_write_processors(mc);
60 mptable_write_buses(mc, NULL, &isa_bus);
62 /* I/O APICs: APIC ID Version State Address*/
63 smp_write_ioapic(mc, VT8237R_APIC_ID, 0x20, IO_APIC_ADDR);
65 /* Now, assemble the table. */
66 mptable_add_isa_interrupts(mc, isa_bus, VT8237R_APIC_ID, 0);
68 #define PCI_INT(bus, dev, fn, pin) \
69 smp_write_intsrc(mc, mp_INT, MP_IRQ_TRIGGER_LEVEL|MP_IRQ_POLARITY_LOW, \
70 bus, (((dev)<<2)|(fn)), VT8237R_APIC_ID, (pin))
85 PCI_INT(0, 15, 1, 20);
88 PCI_INT(0, 16, 0, 21);
89 PCI_INT(0, 16, 1, 21);
90 PCI_INT(0, 16, 2, 21);
91 PCI_INT(0, 16, 3, 21);
94 PCI_INT(0, 17, 2, 22);
97 PCI_INT(0, 18, 0, 23);
100 PCI_INT(1, 0, 0, 16);
102 /*Local Ints: Type Polarity Trigger Bus ID IRQ APIC ID PIN#*/
103 smp_write_lintsrc(mc, mp_ExtINT,
104 MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT,
105 0, 0x0, MP_APIC_ALL, 0x0);
106 smp_write_lintsrc(mc, mp_NMI,
107 MP_IRQ_TRIGGER_DEFAULT | MP_IRQ_POLARITY_DEFAULT,
108 0, 0x0, MP_APIC_ALL, 0x1);
110 /* There is no extension information... */
112 /* Compute the checksums */
114 smp_compute_checksum(smp_next_mpc_entry(mc), mc->mpe_length);
115 mc->mpc_checksum = smp_compute_checksum(mc, mc->mpc_length);
116 printk(BIOS_DEBUG, "Wrote the mp table end at: %p - %p\n",
117 mc, smp_next_mpe_entry(mc));
118 return smp_next_mpe_entry(mc);
121 unsigned long write_smp_table(unsigned long addr)
124 v = smp_write_floating_table(addr);
125 return (unsigned long)smp_write_config_table(v);