ARM: 5855/1: putc support for nuc900
putc support for nuc900 Signed-off-by: lijie <eltshanli@gmail.com> Signed-off-by: Wan ZongShun <mcuos.com@gmail.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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@ -22,11 +22,21 @@
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#include <mach/regs-serial.h>
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#include <mach/regs-serial.h>
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#include <mach/map.h>
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#include <mach/map.h>
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#include <linux/serial_reg.h>
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#define arch_decomp_wdog()
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#define arch_decomp_wdog()
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#define TX_DONE (UART_LSR_TEMT | UART_LSR_THRE)
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static volatile u32 * uart_base = (u32 *)UART0_PA;
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static void putc(int ch)
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static void putc(int ch)
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{
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{
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/* Check THRE and TEMT bits before we transmit the character.
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*/
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while ((uart_base[UART_LSR] & TX_DONE) != TX_DONE)
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barrier();
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*uart_base = ch;
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}
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}
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static inline void flush(void)
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static inline void flush(void)
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