| /* |
| * Copyright (C) 2012 Synopsys, Inc. (www.synopsys.com) |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * published by the Free Software Foundation. |
| */ |
| |
| #ifndef _ASM_ARC_SERIAL_H |
| #define _ASM_ARC_SERIAL_H |
| |
| /* |
| * early-8250 requires BASE_BAUD to be defined and includes this header. |
| * We put in a typical value: |
| * (core clk / 16) - i.e. UART samples 16 times per sec. |
| * Athough in multi-platform-image this might not work, specially if the |
| * clk driving the UART is different. |
| * We can't use DeviceTree as this is typically for early serial. |
| */ |
| |
| #include <asm/clk.h> |
| |
| #define BASE_BAUD (arc_get_core_freq() / 16) |
| |
| /* |
| * This is definitely going to break early 8250 consoles on multi-platform |
| * images but hey, it won't add any code complexity for a debug feature of |
| * one broken driver. |
| */ |
| #ifdef CONFIG_ARC_PLAT_TB10X |
| #undef BASE_BAUD |
| #define BASE_BAUD (arc_get_core_freq() / 16 / 3) |
| #endif |
| |
| #endif /* _ASM_ARC_SERIAL_H */ |
