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author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-27 15:01:25 -0500 |
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committer | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2012-11-27 15:01:25 -0500 |
commit | 459d2a9f5fcf125ba736f7843189ccdfba11b1ff (patch) | |
tree | 6664f0ae653081521a3e1df0c506a2532ae6168e /arch/arm/include/debug/8250_32.S | |
parent | 1428c20f7c38e9fbf59923d1b9615ebdaf2862b7 (diff) | |
parent | 9489e9dcae718d5fde988e4a684a0f55b5f94d17 (diff) |
Merge tag 'v3.7-rc7' into asoc-ux500
Linux 3.7-rc7
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 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2011 Picochip Ltd., Jamie Iles | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify | ||
5 | * it under the terms of the GNU General Public License version 2 as | ||
6 | * published by the Free Software Foundation. | ||
7 | * | ||
8 | * Derived from arch/arm/mach-davinci/include/mach/debug-macro.S to use 32-bit | ||
9 | * accesses to the 8250. | ||
10 | */ | ||
11 | |||
12 | #include <linux/serial_reg.h> | ||
13 | |||
14 | .macro senduart,rd,rx | ||
15 | str \rd, [\rx, #UART_TX << UART_SHIFT] | ||
16 | .endm | ||
17 | |||
18 | .macro busyuart,rd,rx | ||
19 | 1002: ldr \rd, [\rx, #UART_LSR << UART_SHIFT] | ||
20 | and \rd, \rd, #UART_LSR_TEMT | UART_LSR_THRE | ||
21 | teq \rd, #UART_LSR_TEMT | UART_LSR_THRE | ||
22 | bne 1002b | ||
23 | .endm | ||
24 | |||
25 | /* The UART's don't have any flow control IO's wired up. */ | ||
26 | .macro waituart,rd,rx | ||
27 | .endm | ||