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Created xbboot.

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This commit is contained in:
Wolfgang Spraul
2009-08-21 14:04:09 +08:00
parent 23e322b2dd
commit a1c4ecab6b
25 changed files with 6674 additions and 0 deletions
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18
xbboot/target-common/common-types.h Normal file
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/*
* Authors: Xiangfu Liu <xiangfu@qi-hardware.com>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 3 of the License, or (at your option) any later version.
*/
#ifndef __COMMON_TYPES_H__
#define __COMMON_TYPES_H__
typedef unsigned int size_t;
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
#endif // __COMMON_TYPES_H__

4864
xbboot/target-common/jz4740.h Normal file
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xbboot/target-common/serial.c Normal file
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//
// Authors: Wolfgang Spraul <wolfgang@qi-hardware.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version.
//
#include "serial.h"
#include "jz4740.h"
u32 UART_BASE;
void serial_putc(char c)
{
volatile u8* uart_lsr = (volatile u8*)(UART_BASE + OFF_LSR);
volatile u8* uart_tdr = (volatile u8*)(UART_BASE + OFF_TDR);
if (c == '\n') serial_putc ('\r');
/* Wait for fifo to shift out some bytes */
while ( !((*uart_lsr & (UART_LSR_TDRQ | UART_LSR_TEMT)) == 0x60) );
*uart_tdr = (u8) c;
}
void serial_puts(const char *s)
{
while (*s) serial_putc(*s++);
}
void serial_put_hex(unsigned int v)
{
unsigned char c[12];
char i;
for(i = 0; i < 8;i++)
{
c[i] = (v >> ((7 - i) * 4)) & 0xf;
if(c[i] < 10)
c[i] += 0x30;
else
c[i] += (0x41 - 10);
}
c[8] = '\n';
c[9] = 0;
serial_puts(c);
}
int serial_getc()
{
volatile u8* uart_rdr = (volatile u8*)(UART_BASE + OFF_RDR);
while (!serial_tstc());
return *uart_rdr;
}
int serial_tstc()
{
volatile u8* uart_lsr = (volatile u8*)(UART_BASE + OFF_LSR);
if (*uart_lsr & UART_LSR_DR) {
/* Data in rfifo */
return 1;
}
return 0;
}

18
xbboot/target-common/serial.h Normal file
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//
// Authors: Wolfgang Spraul <wolfgang@qi-hardware.com>
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version
// 3 of the License, or (at your option) any later version.
//
#include "common-types.h"
extern u32 UART_BASE;
void serial_putc(char c);
void serial_puts(const char *s);
void serial_put_hex(unsigned int v);
int serial_getc();
int serial_tstc();