static void
ramtron_attach(void)
{
/* find the right spi */
#ifdef CONFIG_ARCH_BOARD_AEROCORE
struct spi_dev_s *spi = up_spiinitialize(4);
#else
struct spi_dev_s *spi = up_spiinitialize(2);
#endif
/* this resets the spi bus, set correct bus speed again */
SPI_SETFREQUENCY(spi, 10 * 1000 * 1000);
SPI_SETBITS(spi, 8);
SPI_SETMODE(spi, SPIDEV_MODE3);
SPI_SELECT(spi, SPIDEV_FLASH, false);
if (spi == NULL)
errx(1, "failed to locate spi bus");
/* start the RAMTRON driver, attempt 5 times */
for (int i = 0; i < 5; i++) {
mtd_dev = ramtron_initialize(spi);
if (mtd_dev) {
/* abort on first valid result */
if (i > 0) {
warnx("warning: mtd needed %d attempts to attach", i + 1);
}
break;
}
}
/* if last attempt is still unsuccessful, abort */
if (mtd_dev == NULL)
errx(1, "failed to initialize mtd driver");
int ret = mtd_dev->ioctl(mtd_dev, MTDIOC_SETSPEED, (unsigned long)10*1000*1000);
if (ret != OK) {
// FIXME: From the previous warnx call, it looked like this should have been an errx instead. Tried
// that but setting the bug speed does fail all the time. Which was then exiting and the board would
// not run correctly. So changed to warnx.
warnx("failed to set bus speed");
}
attached = true;
}
static void
ramtron_attach(void)
{
/* find the right spi */
struct spi_dev_s *spi = up_spiinitialize(4);
/* this resets the spi bus, set correct bus speed again */
SPI_SETFREQUENCY(spi, 10 * 1000 * 1000);
SPI_SETBITS(spi, 8);
SPI_SETMODE(spi, SPIDEV_MODE3);
SPI_SELECT(spi, SPIDEV_FLASH, false);
if (spi == NULL)
errx(1, "failed to locate spi bus");
/* start the RAMTRON driver, attempt 5 times */
for (int i = 0; i < 5; i++) {
mtd_dev = ramtron_initialize(spi);
if (mtd_dev) {
/* abort on first valid result */
if (i > 0) {
warnx("warning: mtd needed %d attempts to attach", i + 1);
}
break;
}
}
/* if last attempt is still unsuccessful, abort */
if (mtd_dev == NULL)
errx(1, "failed to initialize mtd driver");
int ret = mtd_dev->ioctl(mtd_dev, MTDIOC_SETSPEED, (unsigned long)10*1000*1000);
if (ret != OK)
warnx(1, "failed to set bus speed");
attached = true;
}
