/**
* Read data from SPI bus.
* Since we are master, we have to trigger slave by sending
* fake chars on the bus.
*/
static size_t spimaster_read(struct KFile *fd, void *_buf, size_t size)
{
Serial *fd_spi = SERIAL_CAST(fd);
ser_flush(&fd_spi->fd);
ser_purgeRx(fd_spi);
size_t total_rd = 0;
uint8_t *buf = (uint8_t *)_buf;
int c;
while (size--)
{
/*
* Send and receive chars 1 by 1, otherwise the rxfifo
* will overrun.
*/
ser_putchar(0, fd_spi);
if ((c = ser_getchar(fd_spi)) == EOF)
break;
*buf++ = c;
total_rd++;
}
return total_rd;
}
/**
* Read at most \a size bytes from \a port and put them in \a buf
*
* \return number of bytes actually read.
*/
static size_t ser_read(struct KFile *fd, void *_buf, size_t size)
{
Serial *fds = SERIAL_CAST(fd);
size_t i = 0;
char *buf = (char *)_buf;
int c;
while (i < size)
{
if ((c = ser_getchar(fds)) == EOF)
break;
buf[i++] = c;
}
return i;
}
int fgetc (FILE *f) { return (ser_getchar()); }
int main(void)
{
unsigned image;
init_omap3530beagle();
ser_putstr((char *)"\n\nQNX Neutrino Initial Program Loader for Texas Instruments OMAP3530 Beagle Board\n");
while (1) {
image = QNX_LOAD_ADDRESS;
ser_putstr((char *)"Commands:\n\n");
ser_putstr((char *)"Press 'D' for serial download, using the 'sendnto' utility\n");
ser_putstr((char *)"Press 'F' to boot an OS image from NAND flash\n");
ser_putstr((char *)"Press 'U' to Copy an OS image to NAND flash\n");
ser_putstr((char *)"Press 'I' to Update the IPL\n");
switch (ser_getchar()) {
case 'D': case 'd':
ser_putstr((char *)"Send image now...\n");
if (image_download_ser(image)) {
ser_putstr((char *)"Download failed...\n");
continue;
}
else
ser_putstr((char *)"Download OK...\n");
image = image_scan(image, image + 0x200);
break;
case 'F': case 'f':
ser_putstr((char *)"reading from NAND flash ........\n");
if (read_image_from_nand(NAND_RESERVED_BLOCK_START, NAND_RESERVED_BLOCK_END, (unsigned)image) !=0 ) {
ser_putstr((char *)"Read from NAND flash failed...\n");
continue;
}
image = image_scan(image, image+0x200);
break;
case 'U': case 'u':
ser_putstr((char *)"send the ifs now...\n");
if (image_download_ser(image)) {
ser_putstr((char *)"download failed...\n");
continue;
}else{
ser_putstr((char *)"download OK...\n");
//read all left bytes
while(ser_poll()){
ser_getchar();
}
ser_putstr((char *)"Writing IFS image to NAND flash from block 4 ......\n");
if (upgrade_nand_flash(NAND_RESERVED_BLOCK_START, NAND_RESERVED_BLOCK_END, (unsigned)image) != 0 ) {
ser_putstr((char *)"IFS image upgrading failed...\n");
} else {
ser_putstr((char *)"Upgrade IFS OK...\n");
}
continue;
}
break;
case 'I': case 'i':
ser_putstr((char *)"Send the IPL image, using the 'sendnto' utility...\n");
if (image_download_ser(image)) {
ser_putstr((char *)"Download failed...\n");
continue;
} else {
ser_putstr((char *)"Download OK...\n");
ser_putstr((char *)"Writing IPL to NAND flash @ blk0 ......\n");
if (upgrade_IPL((unsigned)image) != 0 ) {
ser_putstr((char *)"IPL upgrading failed...\n");
}
else {
ser_putstr((char *)"Update IPL OK\n");
}
//read all left bytes
while (ser_poll()) {
ser_getchar();
}
continue;
}
break;
default:
continue;
}
if (image != 0xffffffff) {
//before we go, we need to unlock the top 128MB NAND
// this will automatically lock all other blocks
nand_unlock_blocks(1024, 2047);
ser_putstr((char *)"Found image @ 0x");
ser_puthex(image);
ser_putstr((char *)"\n");
image_setup(image);
ser_putstr((char *)"Jumping to startup @ 0x");
ser_puthex(startup_hdr.startup_vaddr);
ser_putstr((char *)"\n\n");
image_start(image);
/* Never reach here */
return 0;
}else{
ser_putstr((char *)"image_scan failed...\n");
}
}
return 0;
}
