summaryrefslogtreecommitdiffstats
path: root/include/asm-arm/arch-mv78xx0/uncompress.h
blob: 3bfe0a293ef7be5d869878f14eb9d0416622da39 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
/*
 * include/asm-arm/arch-mv78xx0/uncompress.h
 *
 * This file is licensed under the terms of the GNU General Public
 * License version 2.  This program is licensed "as is" without any
 * warranty of any kind, whether express or implied.
 */

#include <linux/serial_reg.h>
#include <asm/arch/mv78xx0.h>

#define SERIAL_BASE	((unsigned char *)UART0_PHYS_BASE)

static void putc(const char c)
{
	unsigned char *base = SERIAL_BASE;
	int i;

	for (i = 0; i < 0x1000; i++) {
		if (base[UART_LSR << 2] & UART_LSR_THRE)
			break;
		barrier();
	}

	base[UART_TX << 2] = c;
}

static void flush(void)
{
	unsigned char *base = SERIAL_BASE;
	unsigned char mask;
	int i;

	mask = UART_LSR_TEMT | UART_LSR_THRE;

	for (i = 0; i < 0x1000; i++) {
		if ((base[UART_LSR << 2] & mask) == mask)
			break;
		barrier();
	}
}

/*
 * nothing to do
 */
#define arch_decomp_setup()
#define arch_decomp_wdog()
OpenPOWER on IntegriCloud