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[ARM] 4663/1: Only putc uncompressor output into FFUART if it was enabled by the bootloader
Also, use existing register and bit definitions instead of numbers. Signed-off-by: Philipp Zabel <philipp.zabel@gmail.com> Acked-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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1 changed files with 7 additions and 2 deletions
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@ -9,6 +9,9 @@
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* published by the Free Software Foundation.
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*/
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#include <linux/serial_reg.h>
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#include <asm/arch/pxa-regs.h>
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#define FFUART ((volatile unsigned long *)0x40100000)
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#define BTUART ((volatile unsigned long *)0x40200000)
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#define STUART ((volatile unsigned long *)0x40700000)
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@ -19,9 +22,11 @@
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static inline void putc(char c)
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{
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while (!(UART[5] & 0x20))
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if (!(UART[UART_IER] & IER_UUE))
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return;
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while (!(UART[UART_LSR] & LSR_TDRQ))
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barrier();
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UART[0] = c;
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UART[UART_TX] = c;
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}
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/*
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