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// SPDX-License-Identifier: GPL-2.0
/*
* 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 m32r_putc(char c);
static int puts(const char *s)
{
char c;
while ((c = *s++))
m32r_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 m32r_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 m32r_putc(char c)
{
while ((*SIO0STS & 0x1) == 0)
cpu_relax();
if (c == '\n') {
*SIO0TXB = '\r';
while ((*SIO0STS & 0x1) == 0)
cpu_relax();
}
*SIO0TXB = c;
}
#endif
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