1 /*
2  * linux/include/asm-arm/arch-brutus/uncompress.h
3  *
4  * (C) 1999 Nicolas Pitre <nico@cam.org>
5  *
6  * Reorganised to be machine independent.
7  */
8 
9 #include "hardware.h"
10 
11 /*
12  * The following code assumes the serial port has already been
13  * initialized by the bootloader.  We search for the first enabled
14  * port in the most probable order.  If you didn't setup a port in
15  * your bootloader then nothing will appear (which might be desired).
16  */
17 
18 #define UART(x)		(*(volatile unsigned long *)(serial_port + (x)))
19 
puts(const char * s)20 static void puts( const char *s )
21 {
22 	unsigned long serial_port;
23 
24 	do {
25 		serial_port = _Ser3UTCR0;
26 		if (UART(UTCR3) & UTCR3_TXE) break;
27 		serial_port = _Ser1UTCR0;
28 		if (UART(UTCR3) & UTCR3_TXE) break;
29 		serial_port = _Ser2UTCR0;
30 		if (UART(UTCR3) & UTCR3_TXE) break;
31 		return;
32 	} while (0);
33 
34 	for (; *s; s++) {
35 		/* wait for space in the UART's transmiter */
36 		while (!(UART(UTSR1) & UTSR1_TNF))
37 			barrier();
38 
39 		/* send the character out. */
40 		UART(UTDR) = *s;
41 
42 		/* if a LF, also do CR... */
43 		if (*s == 10) {
44 			while (!(UART(UTSR1) & UTSR1_TNF))
45 				barrier();
46 			UART(UTDR) = 13;
47 		}
48 	}
49 }
50 
51 /*
52  * Nothing to do for these
53  */
54 #define arch_decomp_setup()
55 #define arch_decomp_wdog()
56