mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-26 13:30:55 +07:00
43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/*
|
|
* include/asm-ppc/pc_serial.h
|
|
*
|
|
* This is basically a copy of include/asm-i386/serial.h.
|
|
* It is used on platforms which have an ISA bus and thus are likely
|
|
* to have PC-style serial ports at the legacy I/O port addresses.
|
|
* It also includes the definitions for the fourport, accent, boca
|
|
* and hub6 multiport serial cards, although I have never heard of
|
|
* anyone using any of those on a PPC platform. -- paulus
|
|
*/
|
|
|
|
|
|
/*
|
|
* 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 )
|
|
|
|
#ifdef CONFIG_SERIAL_MANY_PORTS
|
|
#define RS_TABLE_SIZE 64
|
|
#else
|
|
#define RS_TABLE_SIZE 4
|
|
#endif
|
|
|
|
/* 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
|
|
|
|
#define SERIAL_PORT_DFNS \
|
|
/* 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 */
|