diff options
| author | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-16 22:27:58 -0500 |
|---|---|---|
| committer | Al Viro <viro@zeniv.linux.org.uk> | 2012-11-16 22:27:58 -0500 |
| commit | d05f06e60df4f56a70fb8a3e46335b40687169e9 (patch) | |
| tree | c1eec6749fed86a21b08606e1e4acefe4b033253 /arch/arm/include/debug/8250_32.S | |
| parent | 0af1c5300db31f25a412e6e83d42b1747d56c9de (diff) | |
| parent | 1d72d9f83df057e71c7951def41138a0230bf737 (diff) | |
| download | linux-d05f06e60df4f56a70fb8a3e46335b40687169e9.tar.bz2 | |
Merge branch 'arch-frv' into no-rebases
Diffstat (limited to 'arch/arm/include/debug/8250_32.S')
| -rw-r--r-- | arch/arm/include/debug/8250_32.S | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/arch/arm/include/debug/8250_32.S b/arch/arm/include/debug/8250_32.S new file mode 100644 index 000000000000..8db01eeabbb4 --- /dev/null +++ b/arch/arm/include/debug/8250_32.S @@ -0,0 +1,27 @@ +/* + * Copyright (c) 2011 Picochip Ltd., Jamie Iles + * + * 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. + * + * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit + * accesses to the 8250. + */ + +#include <linux/serial_reg.h> + + .macro senduart,rd,rx + str \rd, [\rx, #UART_TX << UART_SHIFT] + .endm + + .macro busyuart,rd,rx +1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] + and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE + teq \rd, #UART_LSR_TEMT | UART_LSR_THRE + bne 1002b + .endm + + /* The UART's don't have any flow control IO's wired up. */ + .macro waituart,rd,rx + .endm |