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/pgalloc.h>
12 #include <asm/arch_hooks.h>
18 #define A01234 (LI_INTA_0 | LI_INTA_1 | LI_INTA_2 | LI_INTA_3 | LI_INTA_4)
19 #define BCD (LI_INTB | LI_INTC | LI_INTD)
20 #define ALLDEVS (A01234 | BCD)
22 static __init void lithium_init(void)
24 set_fixmap(FIX_LI_PCIA, LI_PCI_A_PHYS);
25 set_fixmap(FIX_LI_PCIB, LI_PCI_B_PHYS);
27 if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
28 (li_pcia_read16(PCI_DEVICE_ID) != PCI_VENDOR_ID_SGI_LITHIUM)) {
29 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A');
30 panic("This machine is not SGI Visual Workstation 320/540");
33 if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) ||
34 (li_pcib_read16(PCI_DEVICE_ID) != PCI_VENDOR_ID_SGI_LITHIUM)) {
35 printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B');
36 panic("This machine is not SGI Visual Workstation 320/540");
39 li_pcia_write16(LI_PCI_INTEN, ALLDEVS);
40 li_pcib_write16(LI_PCI_INTEN, ALLDEVS);
43 static __init void cobalt_init(void)
46 * On normal SMP PC this is used only with SMP, but we have to
47 * use it and set it up here to start the Cobalt clock
49 set_fixmap(FIX_APIC_BASE, APIC_DEFAULT_PHYS_BASE);
51 printk(KERN_INFO "Local APIC Version %#lx, ID %#lx\n",
52 apic_read(APIC_LVR), apic_read(APIC_ID));
54 set_fixmap(FIX_CO_CPU, CO_CPU_PHYS);
55 set_fixmap(FIX_CO_APIC, CO_APIC_PHYS);
56 printk(KERN_INFO "Cobalt Revision %#lx, APIC ID %#lx\n",
57 co_cpu_read(CO_CPU_REV), co_apic_read(CO_APIC_ID));
59 /* Enable Cobalt APIC being careful to NOT change the ID! */
60 co_apic_write(CO_APIC_ID, co_apic_read(CO_APIC_ID) | CO_APIC_ENABLE);
62 printk(KERN_INFO "Cobalt APIC enabled: ID reg %#lx\n",
63 co_apic_read(CO_APIC_ID));
66 void __init trap_init_hook(void)