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
20static 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