37 lines
1012 B
ArmAsm
37 lines
1012 B
ArmAsm
/* arch/arm/mach-zynq/include/mach/debug-macro.S
|
|
*
|
|
* Debugging macro include header
|
|
*
|
|
* Copyright (C) 2011 Xilinx
|
|
*
|
|
* This software is licensed under the terms of the GNU General Public
|
|
* License version 2, as published by the Free Software Foundation, and
|
|
* may be copied, distributed, and modified under those terms.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*/
|
|
|
|
#include <mach/zynq_soc.h>
|
|
#include <mach/uart.h>
|
|
|
|
.macro addruart, rp, rv
|
|
ldr \rp, =LL_UART_PADDR @ physical
|
|
ldr \rv, =LL_UART_VADDR @ virtual
|
|
.endm
|
|
|
|
.macro senduart,rd,rx
|
|
str \rd, [\rx, #UART_FIFO_OFFSET] @ TXDATA
|
|
.endm
|
|
|
|
.macro waituart,rd,rx
|
|
.endm
|
|
|
|
.macro busyuart,rd,rx
|
|
1002: ldr \rd, [\rx, #UART_SR_OFFSET] @ get status register
|
|
tst \rd, #UART_SR_TXFULL @
|
|
bne 1002b @ wait if FIFO is full
|
|
.endm
|