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/*
* (C) Copyright 2000-2004
* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/*
* Serial up- and download support
*/
#include <common.h>
#include <asm/arch/mux.h>
#define putc serial_putc
#define tstc serial_tstc
/*******************************************************
* Routine: delay
* Description: spinning delay to use before udelay works
******************************************************/
static inline void delay(unsigned long loops)
{
__asm__ volatile ("1:\n" "subs %0, %1, #1\n"
"bne 1b":"=r" (loops):"0"(loops));
}
static inline void udelay(unsigned long us)
{
delay(us * 200); /* approximate */
}
static gpio_t *blocks[]={ // GPIO1 .. 6
OMAP34XX_GPIO1_BASE,
OMAP34XX_GPIO2_BASE,
OMAP34XX_GPIO3_BASE,
OMAP34XX_GPIO4_BASE,
OMAP34XX_GPIO5_BASE,
OMAP34XX_GPIO6_BASE
};
static inline int gpio_get(int n)
{
int bit=n % 32;
gpio_t *base=blocks[n/32];
return (base->datain >> bit)&1;
}
static inline int gpio_is_input(int n)
{ // geht nicht richtig
int bit=n % 32;
gpio_t *base=blocks[n/32];
return (base->oe >> bit)&1;
}
#ifdef CFG_CMD_FAT
extern void * memcpy(void * dest,const void *src,size_t count);
#else
void * memcpy(void * dest,const void *src,size_t count)
{
char *tmp = (char *) dest, *s = (char *) src;
while (count--)
*tmp++ = *s++;
return dest;
}
#endif
int strcmp(char *s1, char *s2)
{
while(*s1 == *s2) {
if(*s1 == 0)
return 0; // same
s1++;
s2++;
}
return *s1 > *s2?1:-1;
}
long xtol(char *s)
{
long val=0;
while(1)
{
if(*s >= '0' && *s <= '9')
val=16*val+(*s++-'0');
else if(*s >= 'A' && *s <= 'F')
val=16*val+(*s++-'A'+10);
else if(*s >= 'a' && *s <= 'f')
val=16*val+(*s++-'a'+10);
else
break;
}
return val;
}
static char *addr=(char *) CFG_LOADADDR;
static char line[100];
static char *argv[10];
#define __raw_readl(a) (*(volatile unsigned int *)(a))
#define __raw_writel(v,a) (*(volatile unsigned int *)(a) = (v))
#define __raw_readw(a) (*(volatile unsigned short *)(a))
#define __raw_writew(v,a) (*(volatile unsigned short *)(a) = (v))
#define MUX_VAL(OFFSET,VALUE)\
__raw_writew((VALUE), OMAP34XX_CTRL_BASE + (OFFSET));
#define CP(x) (CONTROL_PADCONF_##x)
void testfn(void)
{ // code can be copied to SDRAM (assuming that it is position-independent!)
int i;
for(i=0; i<10; i++) {
if(i & 1)
MUX_VAL(CP(GPMC_nCS6), (IEN | PTD | EN | M4)) /*GPT_PWM11/GPIO57*/
else
MUX_VAL(CP(GPMC_nCS6), (IEN | PTU | EN | M4)) /*GPT_PWM11/GPIO57*/
udelay(500*1000);
}
}
int do_load_serial_bin (ulong offset, int baudrate)
{ // add testing code here
int i=0;
while(0)
{
printf("hello world\n");
// testfn();
}
while(1) {
char *c;
int argc=0;
int pos=0;
printf ("$ ");
while(1) {
line[pos]=getc();
switch(line[pos]) {
case '\b':
case 0x7f:
if(pos > 0) {
putc('\b');
pos--;
}
continue;
case 0:
case '\n':
continue; // ignore
case '\r':
break; // command
default:
if(pos < sizeof(line)/sizeof(line[0])) {
putc(line[pos]);
pos++;
}
continue;
}
line[pos]=0;
printf("\n");
break;
}
c=line;
while(argc < sizeof(argv)/sizeof(argv[0])) {
while (*c == ' ' || *c == '\t')
c++;
if(*c == 0)
break;
argv[argc]=c;
while(*c != 0 && *c != '\t' && *c != ' ')
c++;
argc++;
if(*c == 0)
break;
*c=0; // substitute
c++;
}
if(argc == 0)
continue; // empty line
// printf("argc=%d argv[0]=%s\n", argc, argv[0]);
if(strcmp(argv[0], "c") == 0) { // c - copy test function to SDRAM and execute
void (*fn)(void) = &testfn;
size_t cnt = 0x1000;
addr=(char *) CFG_LOADADDR;
printf("%08x (%d) --> %08x\n", fn, cnt, addr);
memcpy(addr, fn, cnt);
(*fn)();
}
else if(strcmp(argv[0], "x") == 0) { // x [addr] - execute code
void (*fn)(void) = addr;
if(argc > 1)
fn = (void *) xtol(argv[1]);
(*fn)();
}
else if(strcmp(argv[0], "l") == 0) { // l - loop
int d=1;
while(1)
printf ("Welcome to uart-monitor (%d)\n", d++), udelay(500*1000);
}
else if(strcmp(argv[0], "ram") == 0) {
int val=0x55;
if(argc == 2)
val=xtol(argv[1]);
for(addr=(char *) CFG_LOADADDR; addr < 256+(char *) CFG_LOADADDR; addr++) {
*addr=val++;
}
addr=(char *) CFG_LOADADDR;
}
else if(strcmp(argv[0], "a") == 0) { // a [addr]
if(argc > 1)
addr=(char *) xtol(argv[1]);
printf("%08x\n", addr);
}
else if(strcmp(argv[0], "r") == 0) { // r [size]
int i;
int n=1;
if(argc > 1)
n=xtol(argv[1]);
printf("%08x:", addr);
for(i=0; i<n; i++) {
printf(" %02x", *addr++);
if(i % 16 == 15 && i != n-1)
printf("\n%08x:", addr);
}
printf("\n");
}
else if(strcmp(argv[0], "rl") == 0) { // rl [size]
int i;
int n=1;
if(argc > 1)
n=xtol(argv[1]);
printf("%08x:", addr);
for(i=0; i<n; i++) {
printf(" %08x", *(volatile unsigned int *) addr);
addr+=4;
if(i % 4 == 3 && i != n-1)
printf("\n%08x:", addr);
}
printf("\n");
}
else if(strcmp(argv[0], "f") == 0) { // f [value [size]]
int i;
int n=1;
int val=0x55;
if(argc > 1)
val=xtol(argv[1]);
if(argc > 2)
n=xtol(argv[2]);
for(i=0; i<n; i++)
addr[i]=val;
}
#if 0
else if(strcmp(argv[0], "clk") == 0) { // clk
extern u32 osc_clk;
printf("clk=%d\n", osc_clk);
}
#endif
else if(strcmp(argv[0], "bl") == 0) { // blink backlight
int i;
for(i=0; i<10; i++) {
if(i & 1)
MUX_VAL(CP(GPMC_nCS6), (IEN | PTD | EN | M4)) /*GPT_PWM11/GPIO57*/
else
MUX_VAL(CP(GPMC_nCS6), (IEN | PTU | EN | M4)) /*GPT_PWM11/GPIO57*/
udelay(500*1000);
}
}
else if(strcmp(argv[0], "g") == 0) { // g - read GPIO
unsigned int i; // gcc compilation has problems with signed division and modulo!
int n=32*sizeof(blocks)/sizeof(blocks[0]);
printf("GPIO1 data: %08x\n", ((gpio_t *) OMAP34XX_GPIO1_BASE) -> datain);
printf("%03d:", 0);
for(i=0; i<n; i++) {
printf(" %c%d", (gpio_is_input(i)?' ':'o'), gpio_get(i));
if(i % 10 == 9 && i != n-1)
printf("\n%03d:", i);
}
printf("\n");
}
else if(strcmp(argv[0], "m") == 0) { // m - read pinmux
int cols=0;
addr=0x48002030;
printf("%08x", addr);
while(addr <= 0x480025F8) {
unsigned mux=*(unsigned *) addr;
int i;
for(i=1; i <= 2; i++) {
printf(" %c%d%c", (mux&8)?((mux&0x10?'U':'D')):' ', (mux&7), (mux&0x100)?'I':'O');
mux >>= 16;
}
if(addr == 0x48002264) {
addr=0x480025DC;
printf("\n%08x", addr);
cols=0;
}
else {
addr+=4;
if(++cols == 8)
printf("\n%08x", addr), cols=0;
}
}
printf("\n");
}
else
printf("uart-monitor unknown command: %s\n", argv[0]);
}
return 0;
}
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