diff options
| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2006-03-16 20:50:34 +0000 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2006-03-21 22:05:58 +0000 |
| commit | 71dccd0f158a8077c92d51f213b55991b7a0e47e (patch) | |
| tree | e5a3f3284db0669b63ea8ad6a263f226aca48dd1 /include/asm-arm/hardware | |
| parent | 268099e3ccca5a988632ce18abd21d809d632ddc (diff) | |
[ARM] Collect Primecell PL01x-based debug implementations together
Several ARM machine implementations used a PL01x primecell compatible
serial port for debugging purposes, and indepdently implemented the low
level debug macros every time. Provide a common implementation and
convert these implementations to use this version.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'include/asm-arm/hardware')
| -rw-r--r-- | include/asm-arm/hardware/debug-pl01x.S | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/include/asm-arm/hardware/debug-pl01x.S b/include/asm-arm/hardware/debug-pl01x.S new file mode 100644 index 000000000000..db0d0f7de5e9 --- /dev/null +++ b/include/asm-arm/hardware/debug-pl01x.S @@ -0,0 +1,29 @@ +/* linux/include/asm-arm/arch-integrator/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. + * +*/ +#include <linux/amba/serial.h> + + .macro senduart,rd,rx + strb \rd, [\rx, #UART01x_DR] + .endm + + .macro waituart,rd,rx +1001: ldr \rd, [\rx, #UART01x_FR] + tst \rd, #UART01x_FR_TXFF + bne 1001b + .endm + + .macro busyuart,rd,rx +1001: ldr \rd, [\rx, #UART01x_FR] + tst \rd, #UART01x_FR_BUSY + bne 1001b + .endm |