forked from Minki/linux
bef964e55a
It has some hackish code and it odd DMA results in the need to support old features in kernel code. Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
178 lines
5.7 KiB
C
178 lines
5.7 KiB
C
/*
|
|
* 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
|
|
|
|
|
|
/*
|
|
* 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_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
|
|
|
|
/*
|
|
* Galileo EV64120 evaluation board
|
|
*/
|
|
#ifdef CONFIG_MIPS_EV64120
|
|
#include <mach-gt64120.h>
|
|
#define EV64120_SERIAL_PORT_DEFNS \
|
|
{ .baud_base = EV64120_BASE_BAUD, .irq = EV64120_UART_IRQ, \
|
|
.flags = STD_COM_FLAGS, \
|
|
.iomem_base = EV64120_UART0_REGS_BASE, .iomem_reg_shift = 2, \
|
|
.io_type = SERIAL_IO_MEM }, \
|
|
{ .baud_base = EV64120_BASE_BAUD, .irq = EV64120_UART_IRQ, \
|
|
.flags = STD_COM_FLAGS, \
|
|
.iomem_base = EV64120_UART1_REGS_BASE, .iomem_reg_shift = 2, \
|
|
.io_type = SERIAL_IO_MEM },
|
|
#else
|
|
#define EV64120_SERIAL_PORT_DEFNS
|
|
#endif
|
|
|
|
#ifdef CONFIG_HAVE_STD_PC_SERIAL_PORT
|
|
#define STD_SERIAL_PORT_DEFNS \
|
|
/* UART CLK PORT IRQ FLAGS */ \
|
|
{ 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
|
|
{ 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
|
|
{ 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
|
|
{ 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */
|
|
|
|
#else /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */
|
|
#define STD_SERIAL_PORT_DEFNS
|
|
#endif /* CONFIG_HAVE_STD_PC_SERIAL_PORTS */
|
|
|
|
#ifdef CONFIG_MOMENCO_OCELOT_3
|
|
#define OCELOT_3_BASE_BAUD ( 20000000 / 16 )
|
|
#define OCELOT_3_SERIAL_IRQ 6
|
|
#define OCELOT_3_SERIAL_BASE (signed)0xfd000020
|
|
|
|
#define _OCELOT_3_SERIAL_INIT(int, base) \
|
|
{ .baud_base = OCELOT_3_BASE_BAUD, irq: int, \
|
|
.flags = STD_COM_FLAGS, \
|
|
.iomem_base = (u8 *) base, iomem_reg_shift: 2, \
|
|
io_type: SERIAL_IO_MEM }
|
|
|
|
#define MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS \
|
|
_OCELOT_3_SERIAL_INIT(OCELOT_3_SERIAL_IRQ, OCELOT_3_SERIAL_BASE)
|
|
#else
|
|
#define MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS
|
|
#endif
|
|
|
|
#ifdef CONFIG_MOMENCO_OCELOT
|
|
/* Ordinary NS16552 duart with a 20MHz crystal. */
|
|
#define OCELOT_BASE_BAUD ( 20000000 / 16 )
|
|
|
|
#define OCELOT_SERIAL1_IRQ 4
|
|
#define OCELOT_SERIAL1_BASE 0xe0001020
|
|
|
|
#define _OCELOT_SERIAL_INIT(int, base) \
|
|
{ .baud_base = OCELOT_BASE_BAUD, .irq = int, .flags = STD_COM_FLAGS, \
|
|
.iomem_base = (u8 *) base, .iomem_reg_shift = 2, \
|
|
.io_type = SERIAL_IO_MEM }
|
|
#define MOMENCO_OCELOT_SERIAL_PORT_DEFNS \
|
|
_OCELOT_SERIAL_INIT(OCELOT_SERIAL1_IRQ, OCELOT_SERIAL1_BASE)
|
|
#else
|
|
#define MOMENCO_OCELOT_SERIAL_PORT_DEFNS
|
|
#endif
|
|
|
|
#ifdef CONFIG_MOMENCO_OCELOT_C
|
|
/* Ordinary NS16552 duart with a 20MHz crystal. */
|
|
#define OCELOT_C_BASE_BAUD ( 20000000 / 16 )
|
|
|
|
#define OCELOT_C_SERIAL1_IRQ 80
|
|
#define OCELOT_C_SERIAL1_BASE 0xfd000020
|
|
|
|
#define OCELOT_C_SERIAL2_IRQ 81
|
|
#define OCELOT_C_SERIAL2_BASE 0xfd000000
|
|
|
|
#define _OCELOT_C_SERIAL_INIT(int, base) \
|
|
{ .baud_base = OCELOT_C_BASE_BAUD, \
|
|
.irq = (int), \
|
|
.flags = STD_COM_FLAGS, \
|
|
.iomem_base = (u8 *) base, \
|
|
.iomem_reg_shift = 2, \
|
|
.io_type = SERIAL_IO_MEM \
|
|
}
|
|
#define MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS \
|
|
_OCELOT_C_SERIAL_INIT(OCELOT_C_SERIAL1_IRQ, OCELOT_C_SERIAL1_BASE), \
|
|
_OCELOT_C_SERIAL_INIT(OCELOT_C_SERIAL2_IRQ, OCELOT_C_SERIAL2_BASE)
|
|
#else
|
|
#define MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS
|
|
#endif
|
|
|
|
#ifdef CONFIG_DDB5477
|
|
#include <asm/ddb5xxx/ddb5477.h>
|
|
#define DDB5477_SERIAL_PORT_DEFNS \
|
|
{ .baud_base = BASE_BAUD, .irq = VRC5477_IRQ_UART0, \
|
|
.flags = STD_COM_FLAGS, .iomem_base = (u8*)0xbfa04200, \
|
|
.iomem_reg_shift = 3, .io_type = SERIAL_IO_MEM}, \
|
|
{ .baud_base = BASE_BAUD, .irq = VRC5477_IRQ_UART1, \
|
|
.flags = STD_COM_FLAGS, .iomem_base = (u8*)0xbfa04240, \
|
|
.iomem_reg_shift = 3, .io_type = SERIAL_IO_MEM},
|
|
#else
|
|
#define DDB5477_SERIAL_PORT_DEFNS
|
|
#endif
|
|
|
|
#ifdef CONFIG_SGI_IP32
|
|
/*
|
|
* The IP32 (SGI O2) has standard serial ports (UART 16550A) mapped in memory
|
|
* They are initialized in ip32_setup
|
|
*/
|
|
#define IP32_SERIAL_PORT_DEFNS \
|
|
{},{},
|
|
#else
|
|
#define IP32_SERIAL_PORT_DEFNS
|
|
#endif /* CONFIG_SGI_IP32 */
|
|
|
|
#define SERIAL_PORT_DFNS \
|
|
DDB5477_SERIAL_PORT_DEFNS \
|
|
EV64120_SERIAL_PORT_DEFNS \
|
|
IP32_SERIAL_PORT_DEFNS \
|
|
JAZZ_SERIAL_PORT_DEFNS \
|
|
STD_SERIAL_PORT_DEFNS \
|
|
MOMENCO_OCELOT_C_SERIAL_PORT_DEFNS \
|
|
MOMENCO_OCELOT_SERIAL_PORT_DEFNS \
|
|
MOMENCO_OCELOT_3_SERIAL_PORT_DEFNS
|
|
|
|
#endif /* _ASM_SERIAL_H */
|