zephyr/arch/x86/soc/ia32/soc.h

87 lines
2.0 KiB
C

/*
* Copyright (c) 2010-2015, Wind River Systems, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file
* @brief Board configuration macros for the ia32 platform
*
* This header file is used to specify and describe board-level aspects for
* the 'ia32' platform.
*/
#ifndef __SOC_H_
#define __SOC_H_
#include <misc/util.h>
#ifndef _ASMLANGUAGE
#include <device.h>
#include <drivers/rand32.h>
#endif
/*
* UART
*/
#define UART_NS16550_ACCESS_IOPORT
#define UART_NS16550_PORT_0_BASE_ADDR 0x03F8
#define UART_NS16550_PORT_0_IRQ 4
#define UART_NS16550_PORT_0_CLK_FREQ 1843200
#define UART_NS16550_PORT_1_BASE_ADDR 0x02F8
#define UART_NS16550_PORT_1_IRQ 3
#define UART_NS16550_PORT_1_CLK_FREQ 1843200
#ifdef CONFIG_IOAPIC
#include <drivers/ioapic.h>
#define UART_IRQ_FLAGS (IOAPIC_EDGE | IOAPIC_HIGH)
#endif /* CONFIG_IOAPIC */
#define INT_VEC_IRQ0 0x20 /* Vector number for IRQ0 */
/* PCI definitions */
#define PCI_BUS_NUMBERS 1
#define PCI_CTRL_ADDR_REG 0xCF8
#define PCI_CTRL_DATA_REG 0xCFC
#define PCI_INTA 1
#define PCI_INTB 2
#define PCI_INTC 3
#define PCI_INTD 4
/**
*
* @brief Convert PCI interrupt PIN to IRQ
*
* This file is only used by QEMU, which emulates the i440fx chipset.
* INTx are mapped to IRQs 10 and 11 after being swizzled.
*
* @return IRQ number, -1 if the result is incorrect
*
*/
static inline int pci_pin2irq(int bus, int dev, int pin)
{
ARG_UNUSED(bus);
if ((pin < PCI_INTA) || (pin > PCI_INTD))
return -1;
return 10 + (((pin + dev - 1) >> 1) & 1);
}
#endif /* __SOC_H_ */