ARM: 5910/1: ARM: Add tmp register for addruart and loadsp
[linux-3.10.git] / arch / arm / mach-h720x / include / mach / debug-macro.S
1 /* arch/arm/mach-h720x/include/mach/debug-macro.S
2  *
3  * Debugging macro include header
4  *
5  *  Copyright (C) 1994-1999 Russell King
6  *  Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  *
12 */
13
14                 .equ    io_virt, IO_BASE
15                 .equ    io_phys, IO_START
16
17                 .macro  addruart, rx, tmp
18                 mrc     p15, 0, \rx, c1, c0
19                 tst     \rx, #1                @ MMU enabled?
20                 moveq   \rx, #io_phys          @ physical base address
21                 movne   \rx, #io_virt          @ virtual address
22                 add     \rx, \rx, #0x00020000   @ UART1
23                 .endm
24
25                 .macro  senduart,rd,rx
26                 str     \rd, [\rx, #0x0]        @ UARTDR
27
28                 .endm
29
30                 .macro  waituart,rd,rx
31 1001:           ldr     \rd, [\rx, #0x18]       @ UARTFLG
32                 tst     \rd, #1 << 5           @ UARTFLGUTXFF - 1 when full
33                 bne     1001b
34                 .endm
35
36                 .macro  busyuart,rd,rx
37 1001:           ldr     \rd, [\rx, #0x18]       @ UARTFLG
38                 tst     \rd, #1 << 3           @ UARTFLGUBUSY - 1 when busy
39                 bne     1001b
40                 .endm