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-rw-r--r--arch/arm/mach-sa1100/include/mach/uncompress.h50
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/include/mach/uncompress.h b/arch/arm/mach-sa1100/include/mach/uncompress.h
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+++ b/arch/arm/mach-sa1100/include/mach/uncompress.h
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1/*
2 * arch/arm/mach-sa1100/include/mach/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 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
42static 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()