3 #include <linux/config.h>
4 #include <linux/sched.h>
5 #include <linux/kernel.h>
6 #include <linux/init.h>
8 #include <linux/pci_ids.h>
11 #include <asm/arch_hooks.h>
17 #define A01234 (LI_INTA_0 | LI_INTA_1 | LI_INTA_2 | LI_INTA_3 | LI_INTA_4)
18 #define BCD (LI_INTB | LI_INTC | LI_INTD)
19 #define ALLDEVS (A01234 | BCD)
21 static __init void lithium_init(void)
23 set_fixmap(FIX_LI_PCIA, LI_PCI_A_PHYS);
24 set_fixmap(FIX_LI_PCIB, LI_PCI_B_PHYS);
26 if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
27 (li_pcia_read16(PCI_DEVICE_ID) != PCI_VENDOR_ID_SGI_LITHIUM)) {
28 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A');
29 panic("This machine is not SGI Visual Workstation 320/540");
32 if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
33 (li_pcib_read16(PCI_DEVICE_ID) != PCI_VENDOR_ID_SGI_LITHIUM)) {
34 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B');
35 panic("This machine is not SGI Visual Workstation 320/540");
38 li_pcia_write16(LI_PCI_INTEN, ALLDEVS);
39 li_pcib_write16(LI_PCI_INTEN, ALLDEVS);
42 static __init void cobalt_init(void)
45 * On normal SMP PC this is used only with SMP, but we have to
46 * use it and set it up here to start the Cobalt clock
48 set_fixmap(FIX_APIC_BASE, APIC_DEFAULT_PHYS_BASE);
50 printk(KERN_INFO "Local APIC Version %#lx, ID %#lx\n",
51 apic_read(APIC_LVR), apic_read(APIC_ID));
53 set_fixmap(FIX_CO_CPU, CO_CPU_PHYS);
54 set_fixmap(FIX_CO_APIC, CO_APIC_PHYS);
55 printk(KERN_INFO "Cobalt Revision %#lx, APIC ID %#lx\n",
56 co_cpu_read(CO_CPU_REV), co_apic_read(CO_APIC_ID));
58 /* Enable Cobalt APIC being careful to NOT change the ID! */
59 co_apic_write(CO_APIC_ID, co_apic_read(CO_APIC_ID) | CO_APIC_ENABLE);
61 printk(KERN_INFO "Cobalt APIC enabled: ID reg %#lx\n",
62 co_apic_read(CO_APIC_ID));
65 void __init trap_init_hook(void)