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| author | Ingo Molnar <mingo@elte.hu> | 2008-08-13 13:08:47 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-13 13:08:47 +0200 |
| commit | a12e61df4fa1cfae7a6b76976fa65a6fcb048e3f (patch) | |
| tree | 957c915298b299902aa80afa7c78e94c71b3dc25 /arch/arm/mach-lh7a40x/include/mach/debug-macro.S | |
| parent | 7b27718bdb1b70166383dec91391df5534d449ee (diff) | |
| parent | 30a2f3c60a84092c8084dfe788b710f8d0768cd4 (diff) | |
Merge commit 'v2.6.27-rc3' into x86/urgent
Diffstat (limited to 'arch/arm/mach-lh7a40x/include/mach/debug-macro.S')
| -rw-r--r-- | arch/arm/mach-lh7a40x/include/mach/debug-macro.S | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/arch/arm/mach-lh7a40x/include/mach/debug-macro.S b/arch/arm/mach-lh7a40x/include/mach/debug-macro.S new file mode 100644 index 00000000000..85141ed5383 --- /dev/null +++ b/arch/arm/mach-lh7a40x/include/mach/debug-macro.S @@ -0,0 +1,39 @@ +/* arch/arm/mach-lh7a40x/include/mach/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. + * +*/ + + @ It is not known if this will be appropriate for every 40x + @ board. + + .macro addruart,rx + mrc p15, 0, \rx, c1, c0 + tst \rx, #1 @ MMU enabled? + mov \rx, #0x00000700 @ offset from base + orreq \rx, \rx, #0x80000000 @ physical base + orrne \rx, \rx, #0xf8000000 @ virtual base + .endm + + .macro senduart,rd,rx + strb \rd, [\rx] @ DATA + .endm + + .macro busyuart,rd,rx @ spin while busy +1001: ldr \rd, [\rx, #0x10] @ STATUS + tst \rd, #1 << 3 @ BUSY (TX FIFO not empty) + bne 1001b @ yes, spin + .endm + + .macro waituart,rd,rx @ wait for Tx FIFO room +1001: ldrb \rd, [\rx, #0x10] @ STATUS + tst \rd, #1 << 5 @ TXFF (TX FIFO full) + bne 1001b @ yes, spin + .endm |