216251cff9
Patch from Sascha Hauer This patch fixes the addruart macro to work with both mmu enabled and disabled. Signed-off-by: Sascha Hauer <s.hauer@pengutonix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
35 lines
860 B
ArmAsm
35 lines
860 B
ArmAsm
/* linux/include/asm-arm/arch-imx/debug-macro.S
|
|
*
|
|
* Debugging macro include header
|
|
*
|
|
* Copyright (C) 1994-1999 Russell King
|
|
* Moved from linux/arch/arm/kernel/debug.S by Ben Dooks
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*
|
|
*/
|
|
|
|
.macro addruart,rx
|
|
mrc p15, 0, \rx, c1, c0
|
|
tst \rx, #1 @ MMU enabled?
|
|
moveq \rx, #0x00000000 @ physical
|
|
movne \rx, #0xe0000000 @ virtual
|
|
orreq \rx, \rx, #0x00200000 @ physical
|
|
orr \rx, \rx, #0x00006000 @ UART1 offset
|
|
.endm
|
|
|
|
.macro senduart,rd,rx
|
|
str \rd, [\rx, #0x40] @ TXDATA
|
|
.endm
|
|
|
|
.macro waituart,rd,rx
|
|
.endm
|
|
|
|
.macro busyuart,rd,rx
|
|
1002: ldr \rd, [\rx, #0x98] @ SR2
|
|
tst \rd, #1 << 3 @ TXDC
|
|
beq 1002b @ wait until transmit done
|
|
.endm
|