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Diffstat (limited to 'arch/openrisc/include/asm/serial.h')
| -rw-r--r-- | arch/openrisc/include/asm/serial.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/serial.h b/arch/openrisc/include/asm/serial.h new file mode 100644 index 000000000..a9f23af33 --- /dev/null +++ b/arch/openrisc/include/asm/serial.h @@ -0,0 +1,32 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * OpenRISC Linux + * + * Linux architectural port borrowing liberally from similar works of + * others. All original copyrights apply as per the original source + * declaration. + * + * OpenRISC implementation: + * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> + * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> + * et al. + */ + +#ifndef __ASM_OPENRISC_SERIAL_H +#define __ASM_OPENRISC_SERIAL_H + +#ifdef __KERNEL__ + +#include <asm/cpuinfo.h> + +/* There's a generic version of this file, but it assumes a 1.8MHz UART clk... + * this, on the other hand, assumes the UART clock is tied to the system + * clock... 8250_early.c (early 8250 serial console) actually uses this, so + * it needs to be correct to get the early console working. + */ + +#define BASE_BAUD (cpuinfo_or1k[smp_processor_id()].clock_frequency/16) + +#endif /* __KERNEL__ */ + +#endif /* __ASM_OPENRISC_SERIAL_H */ |