24 lines
		
	
	
		
			414 B
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			24 lines
		
	
	
		
			414 B
		
	
	
	
		
			C
		
	
	
	
	
	
| // SPDX-License-Identifier: GPL-2.0
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| 
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| #include <linux/io.h>
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| 
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| #include <asm/sn/ioc3.h>
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| 
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| static inline struct ioc3_uartregs *console_uart(void)
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| {
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| 	struct ioc3 *ioc3;
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| 
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| 	ioc3 = (struct ioc3 *)((void *)(0x900000001f600000));
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| 	return &ioc3->sregs.uarta;
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| }
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| 
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| void prom_putchar(char c)
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| {
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| 	struct ioc3_uartregs *uart = console_uart();
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| 
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| 	while ((readb(&uart->iu_lsr) & 0x20) == 0)
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| 		cpu_relax();
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| 
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| 	writeb(c, &uart->iu_thr);
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| }
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