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ARM: 8717/2: debug printch/printascii: translate '\n' to "\r\n" not "\n\r" 

Some terminals apparently have issues with "\n\r" and mess up the
display. Let's use the traditional "\r\n" ordering.

Signed-off-by: Nicolas Pitre <nico@linaro.org>
Reported-by: Chris Brandt <Chris.Brandt@renesas.com>
Tested-by: Chris Brandt <Chris.Brandt@renesas.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
This commit is contained in:
Nicolas Pitre 2017-11-02 21:58:41 +01:00 committed by Russell King
parent de880632fc
commit 2a14b80cb0
1 changed files with 14 additions and 11 deletions
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25
arch/arm/kernel/debug.S
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@ -85,25 +85,28 @@ hexbuf_rel: .long hexbuf_addr - .
ENTRY(printascii)
addruart_current r3, r1, r2
b 2f
1: waituart r2, r3
senduart r1, r3
busyuart r2, r3
teq r1, #'\n'
moveq r1, #'\r'
beq 1b
2: teq r0, #0
1: teq r0, #0
ldrneb r1, [r0], #1
teqne r1, #0
bne 1b
ret lr
reteq lr
2: teq r1, #'\n'
bne 3f
mov r1, #'\r'
waituart r2, r3
senduart r1, r3
busyuart r2, r3
mov r1, #'\n'
3: waituart r2, r3
senduart r1, r3
busyuart r2, r3
b 1b
ENDPROC(printascii)
ENTRY(printch)
addruart_current r3, r1, r2
mov r1, r0
mov r0, #0
b 1b
b 2b
ENDPROC(printch)
#ifdef CONFIG_MMU