projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| c116c1d7 | 1 | /* arch/arm/plat-samsung/include/plat/debug-macro.S |
| 498e03b6 BD |
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 | ||
| be670daf | 12 | #include <linux/serial_s3c.h> |
| 498e03b6 | 13 | |
| a73ddc61 | 14 | /* The S5PV210/S5PC110 implementations are as belows. */ |
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15 | |
| 16 | .macro fifo_level_s5pv210 rd, rx | |
| 2815774b | 17 | ldr \rd, [\rx, # S3C2410_UFSTAT] |
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18 | and \rd, \rd, #S5PV210_UFSTAT_TXMASK |
| 19 | .endm | |
| 20 | ||
| 21 | .macro fifo_full_s5pv210 rd, rx | |
| 2815774b | 22 | ldr \rd, [\rx, # S3C2410_UFSTAT] |
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23 | tst \rd, #S5PV210_UFSTAT_TXFULL |
| 24 | .endm | |
| 25 | ||
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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 | |
| 2815774b | 30 | ldr \rd, [\rx, # S3C2410_UFSTAT] |
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31 | and \rd, \rd, #S3C2440_UFSTAT_TXMASK |
| 32 | .endm | |
| 33 | ||
| 34 | #ifndef fifo_level | |
| f0c9eb4e | 35 | #define fifo_level fifo_level_s3c2440 |
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36 | #endif |
| 37 | ||
| 38 | .macro fifo_full_s3c2440 rd, rx | |
| 2815774b | 39 | ldr \rd, [\rx, # S3C2410_UFSTAT] |
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40 | tst \rd, #S3C2440_UFSTAT_TXFULL |
| 41 | .endm | |
| 42 | ||
| 43 | #ifndef fifo_full | |
| 44 | #define fifo_full fifo_full_s3c2440 | |
| 45 | #endif | |
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46 | |
| 47 | .macro senduart,rd,rx | |
| 2815774b | 48 | strb \rd, [\rx, # S3C2410_UTXH] |
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49 | .endm |
| 50 | ||
| 51 | .macro busyuart, rd, rx | |
| 2815774b | 52 | ldr \rd, [\rx, # S3C2410_UFCON] |
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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 | |
| 2815774b | 63 | ldr \rd, [\rx, # S3C2410_UTRSTAT] |
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64 | tst \rd, #S3C2410_UTRSTAT_TXFE |
| 65 | beq 1001b | |
| 66 | ||
| 67 | 1002: @ exit busyuart | |
| 68 | .endm | |
| 69 | ||
| 70 | .macro waituart,rd,rx | |
| 2815774b | 71 | ldr \rd, [\rx, # S3C2410_UFCON] |
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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 | |
| 2815774b | 82 | ldr \rd, [\rx, # S3C2410_UTRSTAT] |
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83 | tst \rd, #S3C2410_UTRSTAT_TXFE |
| 84 | beq 1001b | |
| 85 | ||
| 86 | 1002: @ exit busyuart | |
| 87 | .endm |