1 /*
2  * arch/arm/mach-sa1100/include/mach/uncompress.h
3  *
4  * (C) 1999 Nicolas Pitre <nico@fluxnic.net>
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 
20 static void putc(int c)
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 	/* wait for space in the UART's transmitter */
35 	while (!(UART(UTSR1) & UTSR1_TNF))
36 		barrier();
37 
38 	/* send the character out. */
39 	UART(UTDR) = c;
40 }
41 
42 static inline void flush(void)
43 {
44 }
45 
46 /*
47  * Nothing to do for these
48  */
49 #define arch_decomp_setup()
50 #define arch_decomp_wdog()
51