diff options
Diffstat (limited to 'include/asm-arm/arch-ixp4xx/debug-macro.S')
| -rw-r--r-- | include/asm-arm/arch-ixp4xx/debug-macro.S | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/include/asm-arm/arch-ixp4xx/debug-macro.S b/include/asm-arm/arch-ixp4xx/debug-macro.S new file mode 100644 index 000000000000..4499ae8e4b44 --- /dev/null +++ b/include/asm-arm/arch-ixp4xx/debug-macro.S @@ -0,0 +1,34 @@ +/* linux/include/asm-arm/arch-ixp4xx/debug-macro.S + * + * Debugging macro include header + * + * Copyright (C) 1994-1999 Russell King + * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks + * + * 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. +*/ + + .macro addruart,rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + moveq \rx, #0xc8000000 + movne \rx, #0xff000000 + add \rx,\rx,#3 @ Uart regs are at off set of 3 if + @ byte writes used - Big Endian. + .endm + + .macro senduart,rd,rx + strb \rd, [\rx] + .endm + + .macro waituart,rd,rx +1002: ldrb \rd, [\rx, #0x14] + and \rd, \rd, #0x60 @ check THRE and TEMT bits + teq \rd, #0x60 + bne 1002b + .endm + + .macro busyuart,rd,rx + .endm |