diff options
Diffstat (limited to 'kernel/arch/arm/include/debug/pl01x.S')
| -rw-r--r-- | kernel/arch/arm/include/debug/pl01x.S | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/kernel/arch/arm/include/debug/pl01x.S b/kernel/arch/arm/include/debug/pl01x.S new file mode 100644 index 000000000..92ef808a2 --- /dev/null +++ b/kernel/arch/arm/include/debug/pl01x.S @@ -0,0 +1,38 @@ +/* arch/arm/include/debug/pl01x.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> + +#ifdef CONFIG_DEBUG_UART_PHYS + .macro addruart, rp, rv, tmp + ldr \rp, =CONFIG_DEBUG_UART_PHYS + ldr \rv, =CONFIG_DEBUG_UART_VIRT + .endm +#endif + + .macro senduart,rd,rx + strb \rd, [\rx, #UART01x_DR] + .endm + + .macro waituart,rd,rx +1001: ldr \rd, [\rx, #UART01x_FR] + ARM_BE8( rev \rd, \rd ) + tst \rd, #UART01x_FR_TXFF + bne 1001b + .endm + + .macro busyuart,rd,rx +1001: ldr \rd, [\rx, #UART01x_FR] + ARM_BE8( rev \rd, \rd ) + tst \rd, #UART01x_FR_BUSY + bne 1001b + .endm |