37 lines
992 B
ArmAsm
37 lines
992 B
ArmAsm
/*
|
|
* arch/arm/mach-ks8695/include/mach/debug-macro.S
|
|
*
|
|
* Copyright (C) 2006 Ben Dooks <ben@simtec.co.uk>
|
|
* Copyright (C) 2006 Simtec Electronics
|
|
*
|
|
* KS8695 - Debug macros
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <mach/hardware.h>
|
|
#include <mach/regs-uart.h>
|
|
|
|
.macro addruart, rp, rv
|
|
ldr \rp, =KS8695_UART_PA @ physical base address
|
|
ldr \rv, =KS8695_UART_VA @ virtual base address
|
|
.endm
|
|
|
|
.macro senduart, rd, rx
|
|
str \rd, [\rx, #KS8695_URTH] @ Write to Transmit Holding Register
|
|
.endm
|
|
|
|
.macro busyuart, rd, rx
|
|
1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register
|
|
tst \rd, #URLS_URTE @ Holding & Shift registers empty?
|
|
beq 1001b
|
|
.endm
|
|
|
|
.macro waituart, rd, rx
|
|
1001: ldr \rd, [\rx, #KS8695_URLS] @ Read Line Status Register
|
|
tst \rd, #URLS_URTHRE @ Holding Register empty?
|
|
beq 1001b
|
|
.endm
|