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[ARM] 4510/1: S3C: split debug-macro support into plat-s3c 

Move the common parts of the debug macros into include/asm-arm/plat-s3c
ready to be used for the common S3C support.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2007-07-22 16:08:48 +01:00 committed by Russell King
parent d58153d865
commit 498e03b619
2 changed files with 66 additions and 43 deletions
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52
include/asm-arm/arch-s3c2410/debug-macro.S
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@ -13,13 +13,15 @@
*/
#include <asm/arch/map.h>
#include <asm/plat-s3c/regs-serial.h>
#include <asm/arch/regs-gpio.h>
#include <asm/plat-s3c/regs-serial.h>
#include <asm/plat-s3c/debug-macro.S>
#define S3C2410_UART1_OFF (0x4000)
#define SHIFT_2440TXF (14-9)
.macro addruart, rx
.macro addruart, rx
mrc p15, 0, \rx, c1, c0
tst \rx, #1
ldreq \rx, = S3C24XX_PA_UART
@ -27,18 +29,9 @@
#if CONFIG_DEBUG_S3C2410_UART != 0
add \rx, \rx, #(S3C2410_UART1_OFF * CONFIG_DEBUG_S3C2410_UART)
#endif
.endm
.endm
.macro senduart,rd,rx
strb \rd, [\rx, # S3C2410_UTXH ]
.endm
.macro busyuart, rd, rx
ldr \rd, [ \rx, # S3C2410_UFCON ]
tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
beq 1001f @
@ FIFO enabled...
1003:
.macro fifo_full rd, rx
@ check for arm920 vs arm926. currently assume all arm926
@ devices have an 64 byte FIFO identical to the s3c2440
mrc p15, 0, \rd, c0, c0
@ -57,25 +50,9 @@
ldr \rd, [ \rx, # S3C2410_UFSTAT ]
moveq \rd, \rd, lsr #SHIFT_2440TXF
tst \rd, #S3C2410_UFSTAT_TXFULL
bne 1003b
b 1002f
.endm
1001:
@ busy waiting for non fifo
ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
tst \rd, #S3C2410_UTRSTAT_TXFE
beq 1001b
1002: @ exit busyuart
.endm
.macro waituart,rd,rx
ldr \rd, [ \rx, # S3C2410_UFCON ]
tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
beq 1001f @
@ FIFO enabled...
1003:
.macro fifo_level rd, rx
mrc p15, 0, \rd, c1, c0
tst \rd, #1
addeq \rd, \rx, #(S3C24XX_PA_GPIO - S3C24XX_PA_UART)
@ -88,15 +65,4 @@
ldr \rd, [ \rx, # S3C2410_UFSTAT ]
andne \rd, \rd, #S3C2410_UFSTAT_TXMASK
andeq \rd, \rd, #S3C2440_UFSTAT_TXMASK
teq \rd, #0
bne 1003b
b 1002f
1001:
@ idle waiting for non fifo
ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
tst \rd, #S3C2410_UTRSTAT_TXFE
beq 1001b
1002: @ exit busyuart
.endm
.endm

57
include/asm-arm/plat-s3c/debug-macro.S Normal file
View File

@ -0,0 +1,57 @@
/* linux/include/asm-arm/plat-s3c/debug-macro.S
*
* Copyright 2005, 2007 Simtec Electronics
* http://armlinux.simtec.co.uk/
* Ben Dooks <ben@simtec.co.uk>
*
* 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 <asm/plat-s3c/regs-serial.h>
#define S3C2410_UART1_OFF (0x4000)
.macro senduart,rd,rx
strb \rd, [\rx, # S3C2410_UTXH ]
.endm
.macro busyuart, rd, rx
ldr \rd, [ \rx, # S3C2410_UFCON ]
tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
beq 1001f @
@ FIFO enabled...
1003:
fifo_full \rd, \rx
bne 1003b
b 1002f
1001:
@ busy waiting for non fifo
ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
tst \rd, #S3C2410_UTRSTAT_TXFE
beq 1001b
1002: @ exit busyuart
.endm
.macro waituart,rd,rx
ldr \rd, [ \rx, # S3C2410_UFCON ]
tst \rd, #S3C2410_UFCON_FIFOMODE @ fifo enabled?
beq 1001f @
@ FIFO enabled...
1003:
fifo_level \rd, \rx
teq \rd, #0
bne 1003b
b 1002f
1001:
@ idle waiting for non fifo
ldr \rd, [ \rx, # S3C2410_UTRSTAT ]
tst \rd, #S3C2410_UTRSTAT_TXFE
beq 1001b
1002: @ exit busyuart
.endm