diff options
| author | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
|---|---|---|
| committer | Yuval Adam <_@yuv.al> | 2017-08-30 08:25:59 +0000 |
| commit | 8e4bff4cab0ddac6060645b0715210484d02ff40 (patch) | |
| tree | 3a5c3024371a04692a3a6d9974d001cdff8ebf84 /arch/xtensa/platforms/xt2000/include/platform/serial.h | |
Diffstat (limited to 'arch/xtensa/platforms/xt2000/include/platform/serial.h')
| -rw-r--r-- | arch/xtensa/platforms/xt2000/include/platform/serial.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/xtensa/platforms/xt2000/include/platform/serial.h b/arch/xtensa/platforms/xt2000/include/platform/serial.h new file mode 100644 index 00000000..7226cf73 --- /dev/null +++ b/arch/xtensa/platforms/xt2000/include/platform/serial.h @@ -0,0 +1,28 @@ +/* + * platform/serial.h + * + * 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) 2001 Tensilica Inc. + */ + +#ifndef _XTENSA_XT2000_SERIAL_H +#define _XTENSA_XT2000_SERIAL_H + +#include <variant/core.h> +#include <asm/io.h> + +/* National-Semi PC16552D DUART: */ + +#define DUART16552_1_INTNUM XCHAL_EXTINT4_NUM +#define DUART16552_2_INTNUM XCHAL_EXTINT5_NUM + +#define DUART16552_1_ADDR IOADDR(0x0d050020) /* channel 1 */ +#define DUART16552_2_ADDR IOADDR(0x0d050000) /* channel 2 */ + +#define DUART16552_XTAL_FREQ 18432000 /* crystal frequency in Hz */ +#define BASE_BAUD ( DUART16552_XTAL_FREQ / 16 ) + +#endif /* _XTENSA_XT2000_SERIAL_H */ |