Linux Kernel  3.7.1
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uncompress.h
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1 /*
2  * arch/arm/mach-kirkwood/include/mach/uncompress.h
3  *
4  * This file is licensed under the terms of the GNU General Public
5  * License version 2. This program is licensed "as is" without any
6  * warranty of any kind, whether express or implied.
7  */
8 
9 #include <linux/serial_reg.h>
10 #include <mach/kirkwood.h>
11 
12 #define SERIAL_BASE ((unsigned char *)UART0_PHYS_BASE)
13 
14 static void putc(const char c)
15 {
16  unsigned char *base = SERIAL_BASE;
17  int i;
18 
19  for (i = 0; i < 0x1000; i++) {
20  if (base[UART_LSR << 2] & UART_LSR_THRE)
21  break;
22  barrier();
23  }
24 
25  base[UART_TX << 2] = c;
26 }
27 
28 static void flush(void)
29 {
30  unsigned char *base = SERIAL_BASE;
31  unsigned char mask;
32  int i;
33 
35 
36  for (i = 0; i < 0x1000; i++) {
37  if ((base[UART_LSR << 2] & mask) == mask)
38  break;
39  barrier();
40  }
41 }
42 
43 /*
44  * nothing to do
45  */
46 #define arch_decomp_setup()
47 #define arch_decomp_wdog()