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[ARM] Collect Primecell PL01x-based debug implementations together

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Several ARM machine implementations used a PL01x primecell compatible
serial port for debugging purposes, and indepdently implemented the low
level debug macros every time.  Provide a common implementation and
convert these implementations to use this version.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-03-16 20:50:34 +00:00 committed by Russell King
parent 268099e3cc
commit 71dccd0f15
4 changed files with 32 additions and 51 deletions
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18
include/asm-arm/arch-integrator/debug-macro.S
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@ -11,8 +11,6 @@
*
*/
#include <linux/amba/serial.h>
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
@ -21,18 +19,4 @@
addne \rx, \rx, #0x16000000 >> 4
.endm
.macro senduart,rd,rx
strb \rd, [\rx, #UART01x_DR]
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
bne 1001b
.endm
.macro busyuart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
bne 1001b
.endm
#include <asm/hardware/debug-pl01x.S>

18
include/asm-arm/arch-realview/debug-macro.S
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@ -11,8 +11,6 @@
*
*/
#include <linux/amba/serial.h>
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
@ -21,18 +19,4 @@
orr \rx, \rx, #0x00009000
.endm
.macro senduart,rd,rx
strb \rd, [\rx, #UART01x_DR]
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
bne 1001b
.endm
.macro busyuart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
bne 1001b
.endm
#include <asm/hardware/debug-pl01x.S>

18
include/asm-arm/arch-versatile/debug-macro.S
View File

@ -11,8 +11,6 @@
*
*/
#include <linux/amba/serial.h>
.macro addruart,rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1 @ MMU enabled?
@ -22,18 +20,4 @@
orr \rx, \rx, #0x00001000
.endm
.macro senduart,rd,rx
strb \rd, [\rx, #UART01x_DR]
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 5 @ UARTFLGUTXFF - 1 when full
bne 1001b
.endm
.macro busyuart,rd,rx
1001: ldr \rd, [\rx, #0x18] @ UARTFLG
tst \rd, #1 << 3 @ UARTFLGUBUSY - 1 when busy
bne 1001b
.endm
#include <asm/hardware/debug-pl01x.S>

29
include/asm-arm/hardware/debug-pl01x.S Normal file
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@ -0,0 +1,29 @@
/* linux/include/asm-arm/arch-integrator/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.
*
*/
#include <linux/amba/serial.h>
.macro senduart,rd,rx
strb \rd, [\rx, #UART01x_DR]
.endm
.macro waituart,rd,rx
1001: ldr \rd, [\rx, #UART01x_FR]
tst \rd, #UART01x_FR_TXFF
bne 1001b
.endm
.macro busyuart,rd,rx
1001: ldr \rd, [\rx, #UART01x_FR]
tst \rd, #UART01x_FR_BUSY
bne 1001b
.endm