1 /* arch/arm/plat-samsung/include/plat/debug-macro.S
3 * Copyright 2005, 2007 Simtec Electronics
4 * http://armlinux.simtec.co.uk/
5 * Ben Dooks <ben@simtec.co.uk>
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.
12 #include <plat/regs-serial.h>
14 /* The S5PV210/S5PC110 implementations are as belows. */
16 .macro fifo_level_s5pv210 rd, rx
17 ldr \rd, [ \rx, # S3C2410_UFSTAT ]
18 and \rd, \rd, #S5PV210_UFSTAT_TXMASK
21 .macro fifo_full_s5pv210 rd, rx
22 ldr \rd, [ \rx, # S3C2410_UFSTAT ]
23 tst \rd, #S5PV210_UFSTAT_TXFULL
26 /* The S3C2440 implementations are used by default as they are the
27 * most widely re-used */
29 .macro fifo_level_s3c2440 rd, rx
30 ldr \rd, [ \rx, # S3C2410_UFSTAT ]
31 and \rd, \rd, #S3C2440_UFSTAT_TXMASK
35 #define fifo_level fifo_level_s3c2440
38 .macro fifo_full_s3c2440 rd, rx
39 ldr \rd, [ \rx, # S3C2410_UFSTAT ]
40 tst \rd, #S3C2440_UFSTAT_TXFULL
44 #define fifo_full fifo_full_s3c2440
48 strb \rd, [\rx, # S3C2410_UTXH ]
51 .macro busyuart, rd, rx
52 ldr \rd, [ \rx, # S3C2410_UFCON ]
53 tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
62 @ busy waiting for non fifo
63 ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
64 tst \rd, #S3C2410_UTRSTAT_TXFE
71 ldr \rd, [ \rx, # S3C2410_UFCON ]
72 tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
81 @ idle waiting for non fifo
82 ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
83 tst \rd, #S3C2410_UTRSTAT_TXFE