diff options
| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-29 08:44:40 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2012-10-29 08:44:40 -0700 |
| commit | e64de3b96c1ba3c1de236a4a103ec21234a5849f (patch) | |
| tree | b4ed91858a3d353bd72e3be101433ac821759379 /arch/arm/include/debug/8250_32.S | |
| parent | dbfd5ccc057fbefb7247614741efbf96be0258c5 (diff) | |
| parent | 8f0d8163b50e01f398b14bcd4dc039ac5ab18d64 (diff) | |
Merge 3.7-rc3 into char-misc-next
This brings in the various 3.7-rc3 char fixes into char-misc-next.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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 |