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| author | Ingo Molnar <mingo@elte.hu> | 2008-10-03 19:28:46 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-03 19:28:46 +0200 |
| commit | f68ec0c24755e5cdb779be6240925f2175311d84 (patch) | |
| tree | a7b7128e61a8456385d82bd1c7ca5f14eecbf2ca /arch/arm/mach-at91/include/mach/debug-macro.S | |
| parent | 98920dc3d1113b883cbc73e3293446d3525c6042 (diff) | |
| parent | 94aca1dac6f6d21f4b07e4864baf7768cabcc6e7 (diff) | |
Merge commit 'v2.6.27-rc8' into x86/setup
Diffstat (limited to 'arch/arm/mach-at91/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-at91/include/mach/debug-macro.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-at91/include/mach/debug-macro.S b/arch/arm/mach-at91/include/mach/debug-macro.S new file mode 100644 index 00000000000..29052ba66ad --- /dev/null +++ b/arch/arm/mach-at91/include/mach/debug-macro.S @@ -0,0 +1,39 @@ +/* + * arch/arm/mach-at91/include/mach/debug-macro.S + * + * Copyright (C) 2003-2005 SAN People + * + * Debugging macro include header + * + * 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 <mach/hardware.h> +#include <mach/at91_dbgu.h> + + .macro addruart,rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + ldreq \rx, =(AT91_BASE_SYS + AT91_DBGU) @ System peripherals (phys address) + ldrne \rx, =(AT91_VA_BASE_SYS + AT91_DBGU) @ System peripherals (virt address) + .endm + + .macro senduart,rd,rx + strb \rd, [\rx, #(AT91_DBGU_THR - AT91_DBGU)] @ Write to Transmitter Holding Register + .endm + + .macro waituart,rd,rx +1001: ldr \rd, [\rx, #(AT91_DBGU_SR - AT91_DBGU)] @ Read Status Register + tst \rd, #AT91_DBGU_TXRDY @ DBGU_TXRDY = 1 when ready to transmit + beq 1001b + .endm + + .macro busyuart,rd,rx +1001: ldr \rd, [\rx, #(AT91_DBGU_SR - AT91_DBGU)] @ Read Status Register + tst \rd, #AT91_DBGU_TXEMPTY @ DBGU_TXEMPTY = 1 when transmission complete + beq 1001b + .endm + |