1/*
 2 * arch/m32r/boot/compressed/m32r_sio.c
 3 *
 4 * 2003-02-12:	Takeo Takahashi
 5 * 2006-11-30:	OPSPUT support by Kazuhiro Inaoka
 6 *
 7 */
 8
 9#include <asm/processor.h>
10
11static void m32r_putc(char c);
12
13static int puts(const char *s)
14{
15	char c;
16	while ((c = *s++))
17		m32r_putc(c);
18	return 0;
19}
20
21#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT)
22#include <asm/m32r.h>
23#include <asm/io.h>
24
25#define USE_FPGA_MAP	0
26
27#if USE_FPGA_MAP
28/*
29 * fpga configuration program uses MMU, and define map as same as
30 * M32104 uT-Engine board.
31 */
32#define BOOT_SIO0STS	(volatile unsigned short *)(0x02c00000 + 0x20006)
33#define BOOT_SIO0TXB	(volatile unsigned short *)(0x02c00000 + 0x2000c)
34#else
35#undef PLD_BASE
36#if defined(CONFIG_PLAT_OPSPUT)
37#define PLD_BASE	0x1cc00000
38#else
39#define PLD_BASE	0xa4c00000
40#endif
41#define BOOT_SIO0STS	PLD_ESIO0STS
42#define BOOT_SIO0TXB	PLD_ESIO0TXB
43#endif
44
45static void m32r_putc(char c)
46{
47	while ((*BOOT_SIO0STS & 0x3) != 0x3)
48		cpu_relax();
49	if (c == '\n') {
50		*BOOT_SIO0TXB = '\r';
51		while ((*BOOT_SIO0STS & 0x3) != 0x3)
52			cpu_relax();
53	}
54	*BOOT_SIO0TXB = c;
55}
56#else /* !(CONFIG_PLAT_M32700UT) */
57#if defined(CONFIG_PLAT_MAPPI2)
58#define SIO0STS	(volatile unsigned short *)(0xa0efd000 + 14)
59#define SIO0TXB	(volatile unsigned short *)(0xa0efd000 + 30)
60#else
61#define SIO0STS	(volatile unsigned short *)(0x00efd000 + 14)
62#define SIO0TXB	(volatile unsigned short *)(0x00efd000 + 30)
63#endif
64
65static void m32r_putc(char c)
66{
67	while ((*SIO0STS & 0x1) == 0)
68		cpu_relax();
69	if (c == '\n') {
70		*SIO0TXB = '\r';
71		while ((*SIO0STS & 0x1) == 0)
72			cpu_relax();
73	}
74	*SIO0TXB = c;
75}
76#endif