| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| 2 | /* |
| 3 | * OpenRISC Linux |
| 4 | * |
| 5 | * Linux architectural port borrowing liberally from similar works of |
| 6 | * others. All original copyrights apply as per the original source |
| 7 | * declaration. |
| 8 | * |
| 9 | * OpenRISC implementation: |
| 10 | * Copyright (C) 2003 Matjaz Breskvar <phoenix@bsemi.com> |
| 11 | * Copyright (C) 2010-2011 Jonas Bonn <jonas@southpole.se> |
| 12 | * et al. |
| 13 | */ |
| 14 | |
| 15 | #ifndef __ASM_OPENRISC_SERIAL_H |
| 16 | #define __ASM_OPENRISC_SERIAL_H |
| 17 | |
| 18 | #ifdef __KERNEL__ |
| 19 | |
| 20 | #include <asm/cpuinfo.h> |
| 21 | |
| 22 | /* There's a generic version of this file, but it assumes a 1.8MHz UART clk... |
| 23 | * this, on the other hand, assumes the UART clock is tied to the system |
| 24 | * clock... 8250_early.c (early 8250 serial console) actually uses this, so |
| 25 | * it needs to be correct to get the early console working. |
| 26 | */ |
| 27 | |
| 28 | #define BASE_BAUD (cpuinfo_or1k[smp_processor_id()].clock_frequency/16) |
| 29 | |
| 30 | #endif /* __KERNEL__ */ |
| 31 | |
| 32 | #endif /* __ASM_OPENRISC_SERIAL_H */ |