serial.h

umon bootloader source code, support mips cpu.

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1999 by Ralf Baechle
 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
 */
#ifndef _ASM_SERIAL_H
#define _ASM_SERIAL_H

#include <linux/config.h>

/*
 * This assumes you have a 1.8432 MHz clock for your UART.
 *
 * It'd be nice if someone built a serial card with a 24.576 MHz
 * clock, since the 16550A is capable of handling a top speed of 1.5
 * megabits/second; but this requires the faster clock.
 */
#define BASE_BAUD (1843200 / 16)

/* Standard COM flags (except for COM4, because of the 8514 problem) */
#ifdef CONFIG_SERIAL_DETECT_IRQ
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
#else
#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
#endif

#ifdef CONFIG_SERIAL_MANY_PORTS
#define FOURPORT_FLAGS ASYNC_FOURPORT
#define ACCENT_FLAGS 0
#define BOCA_FLAGS 0
#define HUB6_FLAGS 0
#define RS_TABLE_SIZE	64
#else
#define RS_TABLE_SIZE
#endif

/*
 * The following define the access methods for the HUB6 card. All
 * access is through two ports for all 24 possible chips. The card is
 * selected through the high 2 bits, the port on that card with the
 * "middle" 3 bits, and the register on that port with the bottom
 * 3 bits.
 *
 * While the access port and interrupt is configurable, the default
 * port locations are 0x302 for the port control register, and 0x303
 * for the data read/write register. Normally, the interrupt is at irq3
 * but can be anything from 3 to 7 inclusive. Note that using 3 will
 * require disabling com2.
 */

#define C_P(card,port) (((card)<<6|(port)<<3) + 1)

#ifdef CONFIG_MACH_JAZZ
#include <asm/jazz.h>

#ifndef CONFIG_OLIVETTI_M700
   /* Some Jazz machines seem to have an 8MHz crystal clock but I don't know
      exactly which ones ... XXX */
#define JAZZ_BASE_BAUD ( 8000000 / 16 ) /* ( 3072000 / 16) */
#else
/* but the M700 isn't such a strange beast */
#define JAZZ_BASE_BAUD BASE_BAUD
#endif

#define _JAZZ_SERIAL_INIT(int, base)					\
	{ .baud_base = JAZZ_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS,	\
	  .iomem_base = (u8 *) base, .iomem_reg_shift = 0,			\
	  .io_type = SERIAL_IO_MEM }
#define JAZZ_SERIAL_PORT_DEFNS						\
	_JAZZ_SERIAL_INIT(JAZZ_SERIAL1_IRQ, JAZZ_SERIAL1_BASE),		\
	_JAZZ_SERIAL_INIT(JAZZ_SERIAL2_IRQ, JAZZ_SERIAL2_BASE),
#else
#define JAZZ_SERIAL_PORT_DEFNS
#endif

/*
 * Both Galileo boards have the same UART mappings.
 */
#if defined (CONFIG_MIPS_EV96100) || defined (CONFIG_MIPS_EV64120)
#include <asm/galileo-boards/ev96100.h>
#include <asm/galileo-boards/ev96100int.h>
#define EV96100_SERIAL_PORT_DEFNS                                  \
    { .baud_base = EV96100_BASE_BAUD, .irq = EV96100INT_UART_0, \
      .flags = STD_COM_FLAGS,  \
      .iomem_base = EV96100_UART0_REGS_BASE, .iomem_reg_shift = 2, \
      .io_type = SERIAL_IO_MEM }, \
    { .baud_base = EV96100_BASE_BAUD, .irq = EV96100INT_UART_0, \
      .flags = STD_COM_FLAGS, \
      .iomem_base = EV96100_UART1_REGS_BASE, .iomem_reg_shift = 2, \
      .io_type = SERIAL_IO_MEM },
#else
#define EV96100_SERIAL_PORT_DEFNS
#endif

#ifdef CONFIG_MIPS_ITE8172
#include <asm/it8172/it8172.h>
#include <asm/it8172/it8172_int.h>
#include <asm/it8712.h>
#define ITE_SERIAL_PORT_DEFNS                                  \
    { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_UART_BASE), \
      .irq = IT8172_UART_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 }, \
    { .baud_base = (24000000/(16*13)), .port = (IT8172_PCI_IO_BASE + IT8712_UART1_PORT), \
      .irq = IT8172_SERIRQ_4, .flags = STD_COM_FLAGS, .type = 0x3 }, \
    /* Smart Card Reader 0 */ \
    { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_SCR0_BASE), \
      .irq = IT8172_SCR0_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 }, \
    /* Smart Card Reader 1 */ \
    { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_SCR1_BASE), \
      .irq = IT8172_SCR1_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 },
#else
#define ITE_SERIAL_PORT_DEFNS
#endif

#ifdef CONFIG_MIPS_IVR
#include <asm/it8172/it8172.h>
#include <asm/it8172/it8172_int.h>
#define IVR_SERIAL_PORT_DEFNS                                  \
    { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_UART_BASE), \
      .irq = IT8172_UART_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 },         \
    /* Smart Card Reader 1 */ \
    { .baud_base = BASE_BAUD, .port = (IT8172_PCI_IO_BASE + IT_SCR1_BASE), \
      .irq = IT8172_SCR1_IRQ, .flags = STD_COM_FLAGS, .type = 0x3 },
#else
#define IVR_SERIAL_PORT_DEFNS
#endif

#ifdef CONFIG_SERIAL_AU1X00
#include <asm/mach-au1x00/au1000.h>
#ifdef CONFIG_SOC_AU1000
#define AU1000_SERIAL_PORT_DEFNS                       \
    { .baud_base = 0, .port = UART0_ADDR,              \
      .iomem_base = (unsigned char *)UART0_ADDR,       \
      .irq = AU1000_UART0_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART1_ADDR,              \
      .iomem_base = (unsigned char *)UART1_ADDR,       \
      .irq = AU1000_UART1_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART2_ADDR,              \
      .iomem_base = (unsigned char *)UART2_ADDR,       \
      .irq = AU1000_UART2_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART3_ADDR,              \
      .iomem_base = (unsigned char *)UART3_ADDR,       \
      .irq = AU1000_UART3_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },
#endif

#ifdef CONFIG_SOC_AU1500
#define AU1000_SERIAL_PORT_DEFNS                       \
    { .baud_base = 0, .port = UART0_ADDR,              \
      .iomem_base = (unsigned char *)UART0_ADDR,       \
      .irq = AU1500_UART0_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART3_ADDR,              \
      .iomem_base = (unsigned char *)UART3_ADDR,       \
      .irq = AU1500_UART3_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },
#endif

#ifdef CONFIG_SOC_AU1100
#define AU1000_SERIAL_PORT_DEFNS                       \
    { .baud_base = 0, .port = UART0_ADDR,              \
      .iomem_base = (unsigned char *)UART0_ADDR,       \
      .irq = AU1100_UART0_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART1_ADDR,              \
      .iomem_base = (unsigned char *)UART1_ADDR,       \
      .irq = AU1100_UART1_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART3_ADDR,              \
      .iomem_base = (unsigned char *)UART3_ADDR,       \
      .irq = AU1100_UART3_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },
#endif

#ifdef CONFIG_SOC_AU1550
#define AU1000_SERIAL_PORT_DEFNS                       \
    { .baud_base = 0, .port = UART_ADDR,              \
      .iomem_base = (unsigned char *)UART_ADDR,       \
      .irq = UART_INTR, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },  
#endif

#ifdef CONFIG_SOC_AU1200
#define AU1000_SERIAL_PORT_DEFNS                       \
    { .baud_base = 0, .port = UART0_ADDR,              \
      .iomem_base = (unsigned char *)UART0_ADDR,       \
      .irq = AU1200_UART0_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },                          \
    { .baud_base = 0, .port = UART1_ADDR,              \
      .iomem_base = (unsigned char *)UART1_ADDR,       \
      .irq = AU1200_UART1_INT, .flags = STD_COM_FLAGS, \
      .iomem_reg_shift = 2 },
#endif

#else
#define AU1000_SERIAL_PORT_DEFNS
#endif

#ifdef CONFIG_HAVE_STD_PC_SERIAL_PORT
#define STD_SERIAL_PORT_DEFNS			\