ARM: add an extra temp register to the low level debugging addruart macro
[linux-2.6.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 #include <mach/hardware.h>
15
16                 .equ    io_virt, IO_VIRT
17                 .equ    io_phys, IO_PHYS
18
19                 .macro  addruart, rp, rv, tmp
20                 mov     \rp, #0x00020000        @ UART1
21                 add     \rv, \rp, #io_virt      @ virtual address
22                 add     \rp, \rp, #io_phys      @ physical base address
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