File: bcm63xx.S

package info (click to toggle)
linux 4.9.228-1
  • links: PTS, VCS
  • area: main
  • in suites: stretch
  • size: 814,720 kB
  • sloc: ansic: 14,532,095; asm: 289,032; makefile: 35,316; perl: 27,556; sh: 17,027; python: 13,390; cpp: 6,103; yacc: 4,354; lex: 2,440; awk: 1,212; pascal: 231; lisp: 218; sed: 21
file content (33 lines) | stat: -rw-r--r-- 748 bytes parent folder | download | duplicates (11)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
/*
 * Broadcom BCM63xx low-level UART debug
 *
 * Copyright (C) 2014 Broadcom Corporation
 *
 * 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 <linux/serial_bcm63xx.h>

	.macro	addruart, rp, rv, tmp
	ldr	\rp, =CONFIG_DEBUG_UART_PHYS
	ldr	\rv, =CONFIG_DEBUG_UART_VIRT
	.endm

	.macro	senduart, rd, rx
	/* word access do not work */
	strb	\rd, [\rx, #UART_FIFO_REG]
	.endm

	.macro	waituart, rd, rx
1001:	ldr	\rd, [\rx, #UART_IR_REG]
	tst	\rd, #(1 << UART_IR_TXEMPTY)
	beq	1001b
	.endm

	.macro	busyuart, rd, rx
1002:	ldr	\rd, [\rx, #UART_IR_REG]
	tst	\rd, #(1 << UART_IR_TXTRESH)
	beq	1002b
	.endm