63 lines
1.1 KiB
C
63 lines
1.1 KiB
C
/*
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* Copyright (c) 2010-2015, Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @file
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* @brief Board configuration macros for the ia32 platform
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*
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* This header file is used to specify and describe board-level aspects for
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* the 'ia32' platform.
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*/
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#ifndef __SOC_H_
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#define __SOC_H_
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#include <misc/util.h>
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#ifndef _ASMLANGUAGE
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#include <device.h>
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#include <random/rand32.h>
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#endif
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/*
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* UART
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*/
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#define UART_NS16550_ACCESS_IOPORT
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#define INT_VEC_IRQ0 0x20 /* Vector number for IRQ0 */
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/* PCI definitions */
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#define PCI_BUS_NUMBERS 1
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#define PCI_CTRL_ADDR_REG 0xCF8
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#define PCI_CTRL_DATA_REG 0xCFC
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#define PCI_INTA 1
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#define PCI_INTB 2
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#define PCI_INTC 3
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#define PCI_INTD 4
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/**
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*
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* @brief Convert PCI interrupt PIN to IRQ
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*
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* This file is only used by QEMU, which emulates the i440fx chipset.
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* INTx are mapped to IRQs 10 and 11 after being swizzled.
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*
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* @return IRQ number, -1 if the result is incorrect
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*
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*/
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static inline int pci_pin2irq(int bus, int dev, int pin)
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{
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ARG_UNUSED(bus);
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if ((pin < PCI_INTA) || (pin > PCI_INTD))
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return -1;
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return 10 + (((pin + dev - 1) >> 1) & 1);
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}
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#endif /* __SOC_H_ */
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