75 lines
1.5 KiB
C
75 lines
1.5 KiB
C
/*
|
|
* arch/m32r/boot/compressed/m32r_sio.c
|
|
*
|
|
* 2003-02-12: Takeo Takahashi
|
|
* 2006-11-30: OPSPUT support by Kazuhiro Inaoka
|
|
*
|
|
*/
|
|
|
|
#include <asm/processor.h>
|
|
|
|
static void putc(char c);
|
|
|
|
static int puts(const char *s)
|
|
{
|
|
char c;
|
|
while ((c = *s++)) putc(c);
|
|
return 0;
|
|
}
|
|
|
|
#if defined(CONFIG_PLAT_M32700UT) || defined(CONFIG_PLAT_OPSPUT)
|
|
#include <asm/m32r.h>
|
|
#include <asm/io.h>
|
|
|
|
#define USE_FPGA_MAP 0
|
|
|
|
#if USE_FPGA_MAP
|
|
/*
|
|
* fpga configuration program uses MMU, and define map as same as
|
|
* M32104 uT-Engine board.
|
|
*/
|
|
#define BOOT_SIO0STS (volatile unsigned short *)(0x02c00000 + 0x20006)
|
|
#define BOOT_SIO0TXB (volatile unsigned short *)(0x02c00000 + 0x2000c)
|
|
#else
|
|
#undef PLD_BASE
|
|
#if defined(CONFIG_PLAT_OPSPUT)
|
|
#define PLD_BASE 0x1cc00000
|
|
#else
|
|
#define PLD_BASE 0xa4c00000
|
|
#endif
|
|
#define BOOT_SIO0STS PLD_ESIO0STS
|
|
#define BOOT_SIO0TXB PLD_ESIO0TXB
|
|
#endif
|
|
|
|
static void putc(char c)
|
|
{
|
|
while ((*BOOT_SIO0STS & 0x3) != 0x3)
|
|
cpu_relax();
|
|
if (c == '\n') {
|
|
*BOOT_SIO0TXB = '\r';
|
|
while ((*BOOT_SIO0STS & 0x3) != 0x3)
|
|
cpu_relax();
|
|
}
|
|
*BOOT_SIO0TXB = c;
|
|
}
|
|
#else /* !(CONFIG_PLAT_M32700UT) */
|
|
#if defined(CONFIG_PLAT_MAPPI2)
|
|
#define SIO0STS (volatile unsigned short *)(0xa0efd000 + 14)
|
|
#define SIO0TXB (volatile unsigned short *)(0xa0efd000 + 30)
|
|
#else
|
|
#define SIO0STS (volatile unsigned short *)(0x00efd000 + 14)
|
|
#define SIO0TXB (volatile unsigned short *)(0x00efd000 + 30)
|
|
#endif
|
|
|
|
static void putc(char c)
|
|
{
|
|
while ((*SIO0STS & 0x1) == 0)
|
|
cpu_relax();
|
|
if (c == '\n') {
|
|
*SIO0TXB = '\r';
|
|
while ((*SIO0STS & 0x1) == 0)
|
|
cpu_relax();
|
|
}
|
|
*SIO0TXB = c;
|
|
}
|
|
#endif
|