summaryrefslogtreecommitdiff
path: root/arch/openrisc/include/asm/serial.h
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-07-24 09:55:18 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-07-24 09:55:18 -0700
commitff0c4ad2c3a75ccfe6adca916e50804eb45bb2d9 (patch)
tree574f2d38793f7a08af73c40a96d6dc76af9c6f46 /arch/openrisc/include/asm/serial.h
parentfcda12e7f6d58d61997681a9d41779e3fd2ffc94 (diff)
parent19f9d392365113f74286b1721c7c032c12cf5abd (diff)
Merge branch 'for-upstream' of git://openrisc.net/jonas/linux
* 'for-upstream' of git://openrisc.net/jonas/linux: (24 commits) OpenRISC: Add MAINTAINERS entry OpenRISC: Miscellaneous OpenRISC: Library routines OpenRISC: Headers OpenRISC: Traps OpenRISC: Module support OpenRISC: GPIO OpenRISC: Scheduling/Process management OpenRISC: Idle/Power management OpenRISC: System calls OpenRISC: IRQ OpenRISC: Timekeeping OpenRISC: DMA OpenRISC: PTrace OpenRISC: Build infrastructure OpenRISC: Signal handling OpenRISC: Memory management OpenRISC: Device tree OpenRISC: Boot code iomap: make IOPORT/PCI mapping functions conditional ...
Diffstat (limited to 'arch/openrisc/include/asm/serial.h')
-rw-r--r--arch/openrisc/include/asm/serial.h36
1 files changed, 36 insertions, 0 deletions
diff --git a/arch/openrisc/include/asm/serial.h b/arch/openrisc/include/asm/serial.h
new file mode 100644
index 000000000000..270a45241639
--- /dev/null
+++ b/arch/openrisc/include/asm/serial.h
@@ -0,0 +1,36 @@
+/*
+ * 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.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#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.clock_frequency/16)
+
+#endif /* __KERNEL__ */
+
+#endif /* __ASM_OPENRISC_SERIAL_H */