aboutsummaryrefslogtreecommitdiffstats
path: root/arch/m68k/include/asm/serial.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/m68k/include/asm/serial.h')
-rw-r--r--arch/m68k/include/asm/serial.h33
1 files changed, 33 insertions, 0 deletions
diff --git a/arch/m68k/include/asm/serial.h b/arch/m68k/include/asm/serial.h
new file mode 100644
index 000000000000..2b90d6e69070
--- /dev/null
+++ b/arch/m68k/include/asm/serial.h
@@ -0,0 +1,33 @@
1/*
2 * include/asm-m68k/serial.h
3 *
4 * currently this seems useful only for a Q40,
5 * it's an almost exact copy of ../asm-alpha/serial.h
6 *
7 */
8
9
10/*
11 * This assumes you have a 1.8432 MHz clock for your UART.
12 *
13 * It'd be nice if someone built a serial card with a 24.576 MHz
14 * clock, since the 16550A is capable of handling a top speed of 1.5
15 * megabits/second; but this requires the faster clock.
16 */
17#define BASE_BAUD ( 1843200 / 16 )
18
19/* Standard COM flags (except for COM4, because of the 8514 problem) */
20#ifdef CONFIG_SERIAL_DETECT_IRQ
21#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST | ASYNC_AUTO_IRQ)
22#define STD_COM4_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_AUTO_IRQ)
23#else
24#define STD_COM_FLAGS (ASYNC_BOOT_AUTOCONF | ASYNC_SKIP_TEST)
25#define STD_COM4_FLAGS ASYNC_BOOT_AUTOCONF
26#endif
27
28#define SERIAL_PORT_DFNS \
29 /* UART CLK PORT IRQ FLAGS */ \
30 { 0, BASE_BAUD, 0x3F8, 4, STD_COM_FLAGS }, /* ttyS0 */ \
31 { 0, BASE_BAUD, 0x2F8, 3, STD_COM_FLAGS }, /* ttyS1 */ \
32 { 0, BASE_BAUD, 0x3E8, 4, STD_COM_FLAGS }, /* ttyS2 */ \
33 { 0, BASE_BAUD, 0x2E8, 3, STD_COM4_FLAGS }, /* ttyS3 */