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76 lines
1.5 KiB
76 lines
1.5 KiB
/* |
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* This file is subject to the terms and conditions of the GNU General Public |
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* License. See the file "COPYING" in the main directory of this archive |
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* for more details. |
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* |
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* Copyright (C) 1992 Linus Torvalds |
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* Copyright (C) 1994 - 2000 Ralf Baechle |
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* Copyright (C) 2006 Thomas Bogendoerfer |
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*/ |
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#include <linux/delay.h> |
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#include <linux/init.h> |
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#include <linux/interrupt.h> |
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#include <linux/irq.h> |
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#include <linux/kernel.h> |
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#include <asm/i8259.h> |
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#include <asm/io.h> |
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#include <asm/sni.h> |
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#include <asm/irq.h> |
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#include <asm/irq_cpu.h> |
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void (*sni_hwint)(void); |
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asmlinkage void plat_irq_dispatch(void) |
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{ |
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sni_hwint(); |
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} |
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/* ISA irq handler */ |
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irqreturn_t sni_isa_irq_handler(int dummy, void *p) |
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{ |
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int irq; |
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irq = i8259_irq(); |
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if (unlikely(irq < 0)) |
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return IRQ_NONE; |
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generic_handle_irq(irq); |
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return IRQ_HANDLED; |
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} |
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/* |
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* On systems with i8259-style interrupt controllers we assume for |
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* driver compatibility reasons interrupts 0 - 15 to be the i8295 |
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* interrupts even if the hardware uses a different interrupt numbering. |
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*/ |
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void __init arch_init_irq(void) |
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{ |
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init_i8259_irqs(); /* Integrated i8259 */ |
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switch (sni_brd_type) { |
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case SNI_BRD_10: |
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case SNI_BRD_10NEW: |
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case SNI_BRD_TOWER_OASIC: |
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case SNI_BRD_MINITOWER: |
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sni_a20r_irq_init(); |
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break; |
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case SNI_BRD_PCI_TOWER: |
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sni_pcit_irq_init(); |
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break; |
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case SNI_BRD_PCI_TOWER_CPLUS: |
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sni_pcit_cplus_irq_init(); |
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break; |
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case SNI_BRD_RM200: |
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sni_rm200_irq_init(); |
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break; |
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case SNI_BRD_PCI_MTOWER: |
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case SNI_BRD_PCI_DESKTOP: |
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case SNI_BRD_PCI_MTOWER_CPLUS: |
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sni_pcimt_irq_init(); |
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break; |
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} |
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}
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