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Merge tag 'ep93xx-fixes-for-3.9-rc5' of git://github.com/RyanMallon/linux-ep93xx into fixes
From Ryan Mallon <rmallon@gmail.com>: It is a regression fix for some ep93xx boards which are failing to boot on current mainline. The patch has been tested in next over the last few days. * tag 'ep93xx-fixes-for-3.9-rc5' of git://github.com/RyanMallon/linux-ep93xx: ARM: ep93xx: Fix wait for UART FIFO to be empty Signed-off-by: Arnd Bergmann <arnd@arndb.de>
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commit
d5b1598c12
1 changed files with 7 additions and 3 deletions
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@ -47,9 +47,13 @@ static void __raw_writel(unsigned int value, unsigned int ptr)
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static inline void putc(int c)
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{
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/* Transmit fifo not full? */
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while (__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF)
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;
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int i;
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for (i = 0; i < 10000; i++) {
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/* Transmit fifo not full? */
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if (!(__raw_readb(PHYS_UART_FLAG) & UART_FLAG_TXFF))
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break;
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}
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__raw_writeb(c, PHYS_UART_DATA);
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}
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