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| author |   Uwe Zeisberger <Uwe_Zeisberger@digi.com> | 2006-05-02 20:40:56 +0100 |
|---|---|---|
| committer |   Russell King <rmk+kernel@arm.linux.org.uk> | 2006-05-02 20:40:56 +0100 |
| commit | b2556da55f78a9dbe92830b1d1c0b612edfea9fd (patch) | |
| tree | 18487bb34291fa5d754ea90b98af86d7b205c057 /arch | |
| parent | [ARM] 3487/1: IXP4xx: Support non-PCI systems (diff) | |
| download | linux-dev-b2556da55f78a9dbe92830b1d1c0b612edfea9fd.tar.xz linux-dev-b2556da55f78a9dbe92830b1d1c0b612edfea9fd.zip | |
[ARM] 3488/1: make icedcc_putc do the right thing
Patch from Uwe Zeisberger
a) use coprocessor 14
b) make reading the dcc status volatile
Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/boot/compressed/misc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/compressed/misc.c b/arch/arm/boot/compressed/misc.c index 0af3772efcb7..ace3fb5835d9 100644 --- a/arch/arm/boot/compressed/misc.c +++ b/arch/arm/boot/compressed/misc.c @@ -38,10 +38,10 @@ static void icedcc_putc(int ch) if (--i < 0) return; - asm("mrc p14, 0, %0, c0, c0, 0" : "=r" (status)); + asm volatile ("mrc p14, 0, %0, c0, c0, 0" : "=r" (status)); } while (status & 2); - asm("mcr p15, 0, %0, c1, c0, 0" : : "r" (ch)); + asm("mcr p14, 0, %0, c1, c0, 0" : : "r" (ch)); } #define putc(ch) icedcc_putc(ch) |