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zephyr/arch/x86/generic_pc/board.h

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/* board.h - board configuration macros for the 'generic_pc' BSP */
/*
* Copyright (c) 2010-2015, Wind River Systems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1) Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2) Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3) Neither the name of Wind River Systems nor the names of its contributors
* may be used to endorse or promote products derived from this software without
* specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
DESCRIPTION
This header file is used to specify and describe board-level aspects for
the 'generic_pc' BSP.
*/
#ifndef __INCboardh
#define __INCboardh
#include <misc/util.h>
#ifndef _ASMLANGUAGE
#include <drivers/rand32.h>
#endif
#ifdef CONFIG_IOAPIC
#include <drivers/ioapic.h>
#ifdef CONFIG_SERIAL_INTERRUPT_LEVEL
#ifdef CONFIG_SERIAL_INTERRUPT_LOW
#define UART_IOAPIC_FLAGS (IOAPIC_LEVEL | IOAPIC_LOW)
#else
#define UART_IOAPIC_FLAGS (IOAPIC_LEVEL)
#endif
#else /* edge triggered interrupt */
#ifdef CONFIG_SERIAL_INTERRUPT_LOW
/* generate interrupt on falling edge */
#define UART_IOAPIC_FLAGS (IOAPIC_LOW)
#else
/* generate interrupt on raising edge */
#define UART_IOAPIC_FLAGS (0)
#endif
#endif
#endif
/* programmable interrupt controller info (pair of cascaded 8259A devices) */
#define PIC_MASTER_BASE_ADRS 0x20
#define PIC_SLAVE_BASE_ADRS 0xa0
#define PIC_MASTER_STRAY_INT_LVL 0x07 /* master PIC stray IRQ */
#define PIC_SLAVE_STRAY_INT_LVL 0x0f /* slave PIC stray IRQ */
#define PIC_MAX_INT_LVL 0x0f /* max interrupt level in PIC */
#define PIC_REG_ADDR_INTERVAL 1
#define INT_VEC_IRQ0 0x20 /* vector number for PIC IRQ0 */
#define N_PIC_IRQS 16 /* number of PIC IRQs */
/*
* IO APIC (IOAPIC) device information (Intel ioapic)
*/
#define IOAPIC_NUM_RTES 24 /* Number of IRQs = 24 */
#define IOAPIC_BASE_ADRS_PHYS 0xFEC00000 /* base physical address */
#define IOAPIC_SIZE KB(4)
#define IOAPIC_BASE_ADRS IOAPIC_BASE_ADRS_PHYS
/*
* Local APIC (LOAPIC) device information (Intel loapic)
*/
#define LOAPIC_BASE_ADRS_PHYS 0xFEE00000 /* base physical address */
#define LOAPIC_SIZE KB(4)
#define LOAPIC_BASE_ADRS LOAPIC_BASE_ADRS_PHYS
/* local APIC timer definitions */
#define LOAPIC_TIMER_IRQ IOAPIC_NUM_RTES
#define LOAPIC_TIMER_INT_PRI 2
#define LOAPIC_VEC_BASE(x) (x + 32 + IOAPIC_NUM_RTES)
#define LOAPIC_TIMER_VEC LOAPIC_VEC_BASE(0)
/* serial port (aka COM port) information */
#define COM1_BASE_ADRS 0x3f8
#define COM1_INT_LVL 0x04 /* COM1 connected to IRQ4 */
#define COM1_INT_VEC (INT_VEC_IRQ0 + COM1_INT_LVL)
#define COM1_INT_PRI 3 /* not honoured with 8259 PIC */
#define COM1_BAUD_RATE 115200
#define COM2_BASE_ADRS 0x2f8
#define COM2_INT_LVL 0x03 /* COM2 connected to IRQ3 */
#define COM2_INT_VEC (INT_VEC_IRQ0 + COM2_INT_LVL)
#define COM2_INT_PRI 3 /* not honoured with 8259 PIC */
#define COM2_BAUD_RATE 115200
#define UART_REG_ADDR_INTERVAL 1 /* address diff of adjacent regs. */
#define UART_XTAL_FREQ 1843200
/* uart configuration settings */
/* Generic definitions */
#define CONFIG_UART_NUM_SYSTEM_PORTS 2
#define CONFIG_UART_NUM_EXTRA_PORTS 0
#define CONFIG_UART_BAUDRATE COM1_BAUD_RATE
#define CONFIG_UART_NUM_PORTS \
(CONFIG_UART_NUM_SYSTEM_PORTS + CONFIG_UART_NUM_EXTRA_PORTS)
#define CONFIG_UART_PORT_0_REGS COM1_BASE_ADRS
#define CONFIG_UART_PORT_0_IRQ COM1_INT_LVL
#define CONFIG_UART_PORT_1_REGS COM2_BASE_ADRS
#define CONFIG_UART_PORT_1_IRQ COM2_INT_LVL
#define UART_PORTS_CONFIGURE(__type, __name) \
static __type __name[CONFIG_UART_NUM_PORTS] = { \
{ \
.port = CONFIG_UART_PORT_0_REGS, \
.irq = CONFIG_UART_PORT_0_IRQ \
}, \
{ \
.port = CONFIG_UART_PORT_1_REGS, \
.irq = CONFIG_UART_PORT_1_IRQ \
} \
}
/* Console definitions */
#define CONFIG_UART_CONSOLE_INDEX 0
#define CONFIG_UART_CONSOLE_IRQ COM1_INT_LVL
#define CONFIG_UART_CONSOLE_INT_PRI COM1_INT_PRI
/* Bluetooth UART definitions */
#define CONFIG_BLUETOOTH_UART_INDEX 1
#define CONFIG_BLUETOOTH_UART_IRQ COM2_INT_LVL
#define CONFIG_BLUETOOTH_UART_INT_PRI COM2_INT_PRI
#define CONFIG_BLUETOOTH_UART_FREQ UART_XTAL_FREQ
#define CONFIG_BLUETOOTH_UART_BAUDRATE CONFIG_UART_BAUDRATE
/*
* Programmable interval timer (PIT) device information (Intel i8253)
*
* The PIT_INT_VEC macro is also used when using the Wind River
* Hypervisor "timerTick" service, whereas the PIT_INT_LVL is not.
*/
#define PIT_INT_VEC INT_VEC_IRQ0 /* PIT interrupt vector */
#define PIT_INT_LVL 0x00 /* PIT connected to IRQ0 */
#define PIT_INT_PRI 2 /* not honoured with 8259 PIC */
#define PIT_BASE_ADRS 0x40
#define PIT_REG_ADDR_INTERVAL 1
#ifndef _ASMLANGUAGE
/*
* Device drivers utilize the macros PLB_BYTE_REG_WRITE() and
* PLB_BYTE_REG_READ() to access byte-wide registers on the processor
* local bus (PLB), as opposed to a PCI bus, for example. Boards are
* expected to provide implementations of these macros.
*/
#define PLB_BYTE_REG_WRITE(data, address) sys_out8(data, (unsigned int)address)
#define PLB_BYTE_REG_READ(address) sys_in8((unsigned int)address)
#define outByte(data, address) sys_out8(data, (unsigned int)address)
#define inByte(address) sys_in8((unsigned int)address)
/*
* Device drivers utilize the macros PLB_WORD_REG_WRITE() and
* PLB_WORD_REG_READ() to access shortword-wide registers on the processor
* local bus (PLB), as opposed to a PCI bus, for example. Boards are
* expected to provide implementations of these macros.
*/
#define PLB_WORD_REG_WRITE(data, address) sys_out16(data, (unsigned int)address)
#define PLB_WORD_REG_READ(address) sys_in16((unsigned int)address)
/*
* Device drivers utilize the macros PLB_LONG_REG_WRITE() and
* PLB_LONG_REG_READ() to access longword-wide registers on the processor
* local bus (PLB), as opposed to a PCI bus, for example. Boards are
* expected to provide implementations of these macros.
*/
#define PLB_LONG_REG_WRITE(data, address) sys_out32(data, (unsigned int)address)
#define PLB_LONG_REG_READ(address) sys_in32((unsigned int)address)
extern void _SysIntVecProgram(unsigned int vector, unsigned int);
#else /* _ASMLANGUAGE */
/*
* Assembler macros for PLB_BYTE/WORD/LONG_WRITE/READ
*
* Note that these macros trash the contents of EAX and EDX.
* The read macros return the contents in the EAX register.
*/
#define PLB_BYTE_REG_WRITE(data, address) \
movb $data, % al; \
movl $address, % edx; \
outb % al, % dx
#define PLB_BYTE_REG_READ(address) \
movl $address, % edx; \
inb % dx, % al
#define PLB_WORD_REG_WRITE(data, address) \
movw $data, % ax; \
movl $address, % edx; \
outw % ax, % dx
#define PLB_WORD_REG_READ(address) \
movl $address, % edx; \
inw % dx, % ax
#define PLB_LONG_REG_WRITE(data, address) \
movl $data, % ax; \
movl $address, % edx; \
outl % eax, % dx
#define PLB_LONG_REG_READ(address) \
movl $address, % edx; \
inl % dx, % eax
#endif /* !_ASMLANGUAGE */
#endif /* __INCboardh */
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