1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * arch/arm/mach-sa1100/include/mach/uncompress.h
4 *
5 * (C) 1999 Nicolas Pitre <nico@fluxnic.net>
6 *
7 * Reorganised to be machine independent.
8 */
9
10#include "hardware.h"
11
12#define IOMEM(x)	(x)
13
14/*
15 * The following code assumes the serial port has already been
16 * initialized by the bootloader.  We search for the first enabled
17 * port in the most probable order.  If you didn't setup a port in
18 * your bootloader then nothing will appear (which might be desired).
19 */
20
21#define UART(x)		(*(volatile unsigned long *)(serial_port + (x)))
22
23static inline void putc(int c)
24{
25	unsigned long serial_port;
26
27	do {
28		serial_port = _Ser3UTCR0;
29		if (UART(UTCR3) & UTCR3_TXE) break;
30		serial_port = _Ser1UTCR0;
31		if (UART(UTCR3) & UTCR3_TXE) break;
32		serial_port = _Ser2UTCR0;
33		if (UART(UTCR3) & UTCR3_TXE) break;
34		return;
35	} while (0);
36
37	/* wait for space in the UART's transmitter */
38	while (!(UART(UTSR1) & UTSR1_TNF))
39		barrier();
40
41	/* send the character out. */
42	UART(UTDR) = c;
43}
44
45static inline void flush(void)
46{
47}
48
49/*
50 * Nothing to do for these
51 */
52#define arch_decomp_setup()
53