satip-axe/kernel/arch/arm/plat-stmp3xxx/include/mach/debug-macro.S
2015-03-26 17:24:57 +01:00

43 lines
1.1 KiB
ArmAsm

/*
* Debugging macro include header
*
* Embedded Alley Solutions, Inc <source@embeddedalley.com>
*
* Copyright 2008 Freescale Semiconductor, Inc. All Rights Reserved.
* Copyright 2008 Embedded Alley Solutions, Inc All Rights Reserved.
*/
/*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
moveq \rx, #0x80000000 @ physical base address
addeq \rx, \rx, #0x00070000
movne \rx, #0xf0000000 @ virtual base
addne \rx, \rx, #0x00070000
.endm
.macro senduart,rd,rx
strb \rd, [\rx, #0] @ data register at 0
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
bne 1001b
.endm
.macro busyuart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
bne 1001b
.endm