1 /* arch/arm/mach-l7200/include/mach/debug-macro.S
3 * Debugging macro include header
5 * Copyright (C) 1994-1999 Russell King
6 * Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
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.
15 .equ io_phys, IO_START
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, #0x00044000 @ UART1
23 @ add \rx, \rx, #0x00045000 @ UART2
27 str \rd, [\rx, #0x0] @ UARTDR
31 1001: ldr \rd, [\rx, #0x18] @ UARTFLG
32 tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
37 1001: ldr \rd, [\rx, #0x18] @ UARTFLG
38 tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy