Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
[wrt350n-kernel.git] / include / asm-arm / arch-sa1100 / uncompress.h
blob17e64d232e7dfcb7831ffe488de2bf709eb7572f
1 /*
2 * linux/include/asm-arm/arch-sa1100/uncompress.h
4 * (C) 1999 Nicolas Pitre <nico@cam.org>
6 * Reorganised to be machine independent.
7 */
9 #include "hardware.h"
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).
18 #define UART(x) (*(volatile unsigned long *)(serial_port + (x)))
20 static void putc(int c)
22 unsigned long serial_port;
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);
34 /* wait for space in the UART's transmitter */
35 while (!(UART(UTSR1) & UTSR1_TNF))
36 barrier();
38 /* send the character out. */
39 UART(UTDR) = c;
42 static inline void flush(void)
47 * Nothing to do for these
49 #define arch_decomp_setup()
50 #define arch_decomp_wdog()