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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 14:22:59 -0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-07-22 14:22:59 -0400
commit7578634990fb47cc30083fbd812689aa6deacfc0 (patch)
treef493860658579d9572a19b3a41fcea2de035e49f /include/asm-arm/plat-s3c/debug-macro.S
parentd7f5e3df3574c6e38b99f5fe22f15540b2b9811d (diff)
parent5957a4eb284dd6f522b248b674792416466555b2 (diff)
Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
* 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm: (60 commits) [ARM] 4524/1: S3C: Move register out of include/asm-arm/arch-s3c2410 [ARM] 4523/1: S3C: Remove FIFO_MAX from uncompression headers [ARM] 4522/1: S3C: split include/asm-arm/arch/memory.h [ARM] 4521/2: S3C: Reorganise VA mapping headers [ARM] 4520/1: S3C: Remove old VA values from static map [ARM] 4519/1: S3C: split S3C2400 values out of S3C24XX map.h [ARM] 4518/1: S3C: Rename watchdog configuration options [ARM] 4517/1: S3C: Fix debug macros for ARM926 output [ARM] 4516/1: S3C: Fix uncompressor serial output for ARM926 [ARM] 4515/1: S3C: Move uncompress code to plat-s3c [ARM] 4514/1: S3C: Rename DEBUG_S3C2410_PORT and DEBUG_S3C_UART [ARM] 4513/1: S3C: Rename CONFIG_S3C2410_LOWLEVEL_UART_PORT [ARM] 4512/1: S3C: rename the debug macros for per-cpu updates [ARM] 4511/1: S3C: updated LLSERIAL Kconfig defines for CPU support [ARM] 4510/1: S3C: split debug-macro support into plat-s3c [ARM] 4509/1: S3C: Create initial arch/arm/plat-s3c [ARM] 4508/1: S3C: Move items to include/asm-arm/plat-s3c [ARM] 4461/1: MXC platform and i.MX31ADS core support [ARM] 4507/1: pxa2xx clock_event_device [ARM] 4497/1: Only allow safe cache configurations on ARMv6 and later ...
Diffstat (limited to 'include/asm-arm/plat-s3c/debug-macro.S')
-rw-r--r--include/asm-arm/plat-s3c/debug-macro.S75
1 files changed, 75 insertions, 0 deletions
diff --git a/include/asm-arm/plat-s3c/debug-macro.S b/include/asm-arm/plat-s3c/debug-macro.S
new file mode 100644
index 000000000000..84c40b847da8
--- /dev/null
+++ b/include/asm-arm/plat-s3c/debug-macro.S
@@ -0,0 +1,75 @@
1/* linux/include/asm-arm/plat-s3c/debug-macro.S
2 *
3 * Copyright 2005, 2007 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Ben Dooks <ben@simtec.co.uk>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10*/
11
12#include <asm/plat-s3c/regs-serial.h>
13
14/* The S3C2440 implementations are used by default as they are the
15 * most widely re-used */
16
17 .macro fifo_level_s3c2440 rd, rx
18 ldr \rd, [ \rx, # S3C2410_UFSTAT ]
19 and \rd, \rd, #S3C2440_UFSTAT_TXMASK
20 .endm
21
22#ifndef fifo_level
23#define fifo_level fifo_level_s3c2410
24#endif
25
26 .macro fifo_full_s3c2440 rd, rx
27 ldr \rd, [ \rx, # S3C2410_UFSTAT ]
28 tst \rd, #S3C2440_UFSTAT_TXFULL
29 .endm
30
31#ifndef fifo_full
32#define fifo_full fifo_full_s3c2440
33#endif
34
35 .macro senduart,rd,rx
36 strb \rd, [\rx, # S3C2410_UTXH ]
37 .endm
38
39 .macro busyuart, rd, rx
40 ldr \rd, [ \rx, # S3C2410_UFCON ]
41 tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
42 beq 1001f @
43 @ FIFO enabled...
441003:
45 fifo_full \rd, \rx
46 bne 1003b
47 b 1002f
48
491001:
50 @ busy waiting for non fifo
51 ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
52 tst \rd, #S3C2410_UTRSTAT_TXFE
53 beq 1001b
54
551002: @ exit busyuart
56 .endm
57
58 .macro waituart,rd,rx
59 ldr \rd, [ \rx, # S3C2410_UFCON ]
60 tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
61 beq 1001f @
62 @ FIFO enabled...
631003:
64 fifo_level \rd, \rx
65 teq \rd, #0
66 bne 1003b
67 b 1002f
681001:
69 @ idle waiting for non fifo
70 ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
71 tst \rd, #S3C2410_UTRSTAT_TXFE
72 beq 1001b
73
741002: @ exit busyuart
75 .endm