summaryrefslogtreecommitdiffstats
path: root/arch/arm/plat-spear/include/plat/debug-macro.S
blob: 1670734b7e5159d34ada41710c0dc5381fcc4c3a (plain)
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
34
35
36
37
38
/*
 * arch/arm/plat-spear/include/plat/debug-macro.S
 *
 * Debugging macro include header for spear platform
 *
 * Copyright (C) 2009 ST Microelectronics
 * Viresh Kumar<viresh.kumar@st.com>
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2. This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/amba/serial.h>
#include <mach/spear.h>

		.macro	addruart, rx
		mrc	p15, 0, \rx, c1, c0
		tst	\rx, #1					@ MMU enabled?
		moveq	\rx, =SPEAR_DBG_UART_BASE		@ Physical base
		movne	\rx, =VA_SPEAR_DBG_UART_BASE		@ Virtual base
		.endm

		.macro	senduart, rd, rx
		strb	\rd, [\rx, #UART01x_DR]			@ ASC_TX_BUFFER
		.endm

		.macro	waituart, rd, rx
1001:		ldr	\rd, [\rx, #UART01x_FR]			@ FLAG REGISTER
		tst	\rd, #UART01x_FR_TXFF			@ TX_FULL
		bne	1001b
		.endm

		.macro	busyuart, rd, rx
1002:		ldr	\rd, [\rx, #UART01x_FR]			@ FLAG REGISTER
		tst	\rd, #UART011_FR_TXFE			@ TX_EMPTY
		beq	1002b
		.endm
OpenPOWER on IntegriCloud