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https://opencores.org/ocsvn/or1k_soc_on_altera_embedded_dev_kit/or1k_soc_on_altera_embedded_dev_kit/trunk
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[/] [or1k_soc_on_altera_embedded_dev_kit/] [trunk/] [linux-2.6/] [linux-2.6.24/] [arch/] [x86/] [mach-visws/] [traps.c] - Rev 3
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/* VISWS traps */ #include <linux/sched.h> #include <linux/kernel.h> #include <linux/init.h> #include <linux/pci.h> #include <linux/pci_ids.h> #include <asm/io.h> #include <asm/arch_hooks.h> #include <asm/apic.h> #include "cobalt.h" #include "lithium.h" #define A01234 (LI_INTA_0 | LI_INTA_1 | LI_INTA_2 | LI_INTA_3 | LI_INTA_4) #define BCD (LI_INTB | LI_INTC | LI_INTD) #define ALLDEVS (A01234 | BCD) static __init void lithium_init(void) { set_fixmap(FIX_LI_PCIA, LI_PCI_A_PHYS); set_fixmap(FIX_LI_PCIB, LI_PCI_B_PHYS); if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) || (li_pcia_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) { printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A'); panic("This machine is not SGI Visual Workstation 320/540"); } if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) || (li_pcib_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) { printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B'); panic("This machine is not SGI Visual Workstation 320/540"); } li_pcia_write16(LI_PCI_INTEN, ALLDEVS); li_pcib_write16(LI_PCI_INTEN, ALLDEVS); } static __init void cobalt_init(void) { /* * On normal SMP PC this is used only with SMP, but we have to * use it and set it up here to start the Cobalt clock */ set_fixmap(FIX_APIC_BASE, APIC_DEFAULT_PHYS_BASE); setup_local_APIC(); printk(KERN_INFO "Local APIC Version %#lx, ID %#lx\n", apic_read(APIC_LVR), apic_read(APIC_ID)); set_fixmap(FIX_CO_CPU, CO_CPU_PHYS); set_fixmap(FIX_CO_APIC, CO_APIC_PHYS); printk(KERN_INFO "Cobalt Revision %#lx, APIC ID %#lx\n", co_cpu_read(CO_CPU_REV), co_apic_read(CO_APIC_ID)); /* Enable Cobalt APIC being careful to NOT change the ID! */ co_apic_write(CO_APIC_ID, co_apic_read(CO_APIC_ID) | CO_APIC_ENABLE); printk(KERN_INFO "Cobalt APIC enabled: ID reg %#lx\n", co_apic_read(CO_APIC_ID)); } void __init trap_init_hook(void) { lithium_init(); cobalt_init(); }