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linux-sg2042
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Merge tag 'ep93xx-fixes-for-3.8' of git://github.com/RyanMallon/linux-ep93xx into fixes 

* tag 'ep93xx-fixes-for-3.8' of git://github.com/RyanMallon/linux-ep93xx:
  ARM: ep93xx: properly wait for UART FIFO to be empty
This commit is contained in:
Olof Johansson 2012-12-17 18:42:30 -08:00
parent 1dc1d2e948 210dce5faf
commit 4d18391382
1 changed files with 3 additions and 7 deletions
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10
arch/arm/mach-ep93xx/include/mach/uncompress.h
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@ -47,13 +47,9 @@ static void __raw_writel(unsigned int value, unsigned int ptr)
static inline void putc(int c)
{
int i;
for (i = 0; i < 1000; i++) {
/* Transmit fifo not full? */
if (!(__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF))
break;
}
/* Transmit fifo not full? */
while (__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF)
;
__raw_writeb(c, PHYS_UART_DATA);
}