The JZ4740 UART interface is almost 16550 compatible. The UART module needs to be enabled by setting a bit in the FCR register and it has support for receive timeout interrupts. Instead of adding yet another machine specific quirk to the 8250 serial driver we provide a serial_out implementation which sets the required additional flags. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Cc: linux-mips@linux-mips.org Cc: linux-kernel@vger.kernel.org Patchwork: https://patchwork.linux-mips.org/patch/1403/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
		
			
				
	
	
		
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			20 lines
		
	
	
	
		
			673 B
			
		
	
	
	
		
			C
		
	
	
	
	
	
/*
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 *  Copyright (C) 2010, Lars-Peter Clausen <lars@metafoo.de>
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 *  JZ4740 serial support
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 *
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 *  This program is free software; you can redistribute	 it and/or modify it
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 *  under  the terms of	 the GNU General  Public License as published by the
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 *  Free Software Foundation;  either version 2 of the	License, or (at your
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 *  option) any later version.
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 *
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 *  You should have received a copy of the  GNU General Public License along
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 *  with this program; if not, write  to the Free Software Foundation, Inc.,
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 *  675 Mass Ave, Cambridge, MA 02139, USA.
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 *
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 */
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#ifndef __MIPS_JZ4740_SERIAL_H__
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void jz4740_serial_out(struct uart_port *p, int offset, int value);
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#endif
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