diff options
Diffstat (limited to 'arch/arm/plat-samsung/include/plat/debug-macro.S')
-rw-r--r-- | arch/arm/plat-samsung/include/plat/debug-macro.S | 87 |
1 files changed, 87 insertions, 0 deletions
diff --git a/arch/arm/plat-samsung/include/plat/debug-macro.S b/arch/arm/plat-samsung/include/plat/debug-macro.S new file mode 100644 index 00000000000..dc6efd90e8f --- /dev/null +++ b/arch/arm/plat-samsung/include/plat/debug-macro.S | |||
@@ -0,0 +1,87 @@ | |||
1 | /* arch/arm/plat-samsung/include/plat/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 <plat/regs-serial.h> | ||
13 | |||
14 | /* The S5PV210/S5PC110 and S5P6442 implementations are as belows. */ | ||
15 | |||
16 | .macro fifo_level_s5pv210 rd, rx | ||
17 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] | ||
18 | and \rd, \rd, #S5PV210_UFSTAT_TXMASK | ||
19 | .endm | ||
20 | |||
21 | .macro fifo_full_s5pv210 rd, rx | ||
22 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] | ||
23 | tst \rd, #S5PV210_UFSTAT_TXFULL | ||
24 | .endm | ||
25 | |||
26 | /* The S3C2440 implementations are used by default as they are the | ||
27 | * most widely re-used */ | ||
28 | |||
29 | .macro fifo_level_s3c2440 rd, rx | ||
30 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] | ||
31 | and \rd, \rd, #S3C2440_UFSTAT_TXMASK | ||
32 | .endm | ||
33 | |||
34 | #ifndef fifo_level | ||
35 | #define fifo_level fifo_level_s3c2440 | ||
36 | #endif | ||
37 | |||
38 | .macro fifo_full_s3c2440 rd, rx | ||
39 | ldr \rd, [ \rx, # S3C2410_UFSTAT ] | ||
40 | tst \rd, #S3C2440_UFSTAT_TXFULL | ||
41 | .endm | ||
42 | |||
43 | #ifndef fifo_full | ||
44 | #define fifo_full fifo_full_s3c2440 | ||
45 | #endif | ||
46 | |||
47 | .macro senduart,rd,rx | ||
48 | strb \rd, [\rx, # S3C2410_UTXH ] | ||
49 | .endm | ||
50 | |||
51 | .macro busyuart, rd, rx | ||
52 | ldr \rd, [ \rx, # S3C2410_UFCON ] | ||
53 | tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? | ||
54 | beq 1001f @ | ||
55 | @ FIFO enabled... | ||
56 | 1003: | ||
57 | fifo_full \rd, \rx | ||
58 | bne 1003b | ||
59 | b 1002f | ||
60 | |||
61 | 1001: | ||
62 | @ busy waiting for non fifo | ||
63 | ldr \rd, [ \rx, # S3C2410_UTRSTAT ] | ||
64 | tst \rd, #S3C2410_UTRSTAT_TXFE | ||
65 | beq 1001b | ||
66 | |||
67 | 1002: @ exit busyuart | ||
68 | .endm | ||
69 | |||
70 | .macro waituart,rd,rx | ||
71 | ldr \rd, [ \rx, # S3C2410_UFCON ] | ||
72 | tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled? | ||
73 | beq 1001f @ | ||
74 | @ FIFO enabled... | ||
75 | 1003: | ||
76 | fifo_level \rd, \rx | ||
77 | teq \rd, #0 | ||
78 | bne 1003b | ||
79 | b 1002f | ||
80 | 1001: | ||
81 | @ idle waiting for non fifo | ||
82 | ldr \rd, [ \rx, # S3C2410_UTRSTAT ] | ||
83 | tst \rd, #S3C2410_UTRSTAT_TXFE | ||
84 | beq 1001b | ||
85 | |||
86 | 1002: @ exit busyuart | ||
87 | .endm | ||