void
at91ohci_callback(device_t self)
{
struct at91ohci_softc *sc = device_private(self);
usbd_status r;
/* Disable interrupts, so we don't get any spurious ones. */
bus_space_write_4(sc->sc.iot, sc->sc.ioh, OHCI_INTERRUPT_DISABLE,
OHCI_ALL_INTRS);
strlcpy(sc->sc.sc_vendor, "Atmel", sizeof sc->sc.sc_vendor);
sc->sc_ih = at91_intr_establish(sc->sc_pid, IPL_USB, INTR_HIGH_LEVEL, ohci_intr, sc);
r = ohci_init(&sc->sc);
if (r != USBD_NORMAL_COMPLETION) {
printf("%s: init failed, error=%d\n", device_xname(self), r);
at91_intr_disestablish(sc->sc_ih);
return;
}
/* Attach usb device. */
sc->sc.sc_child = config_found(self, &sc->sc.sc_bus, usbctlprint);
}
static void
emac_attach(device_t parent, device_t self, void *aux)
{
struct emac_softc *sc = device_private(self);
struct at91bus_attach_args *sa = aux;
prop_data_t enaddr;
uint32_t u;
printf("\n");
sc->sc_dev = self;
sc->sc_iot = sa->sa_iot;
sc->sc_pid = sa->sa_pid;
sc->sc_dmat = sa->sa_dmat;
if (bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh))
panic("%s: Cannot map registers", device_xname(self));
/* enable peripheral clock */
at91_peripheral_clock(sc->sc_pid, 1);
/* configure emac: */
EMAC_WRITE(ETH_CTL, 0); // disable everything
EMAC_WRITE(ETH_IDR, -1); // disable interrupts
EMAC_WRITE(ETH_RBQP, 0); // clear receive
EMAC_WRITE(ETH_CFG, ETH_CFG_CLK_32 | ETH_CFG_SPD | ETH_CFG_FD | ETH_CFG_BIG);
EMAC_WRITE(ETH_TCR, 0); // send nothing
//(void)EMAC_READ(ETH_ISR);
u = EMAC_READ(ETH_TSR);
EMAC_WRITE(ETH_TSR, (u & (ETH_TSR_UND | ETH_TSR_COMP | ETH_TSR_BNQ
| ETH_TSR_IDLE | ETH_TSR_RLE
| ETH_TSR_COL|ETH_TSR_OVR)));
u = EMAC_READ(ETH_RSR);
EMAC_WRITE(ETH_RSR, (u & (ETH_RSR_OVR|ETH_RSR_REC|ETH_RSR_BNA)));
/* Fetch the Ethernet address from property if set. */
enaddr = prop_dictionary_get(device_properties(self), "mac-addr");
if (enaddr != NULL) {
KASSERT(prop_object_type(enaddr) == PROP_TYPE_DATA);
KASSERT(prop_data_size(enaddr) == ETHER_ADDR_LEN);
memcpy(sc->sc_enaddr, prop_data_data_nocopy(enaddr),
ETHER_ADDR_LEN);
} else {
static const uint8_t hardcoded[ETHER_ADDR_LEN] = {
0x00, 0x0d, 0x10, 0x81, 0x0c, 0x94
};
memcpy(sc->sc_enaddr, hardcoded, ETHER_ADDR_LEN);
}
at91_intr_establish(sc->sc_pid, IPL_NET, INTR_HIGH_LEVEL, emac_intr, sc);
emac_init(sc);
}
void
cpu_initclocks(void)
{
struct at91st_softc *sc = at91st_sc;
if (!sc || !sc->sc_initialized)
panic("%s: driver has not been initialized! (sc=%p)", __FUNCTION__, sc);
stathz = profhz = 0;
/* set up and enable interval timer 1 as kernel timer, */
/* using 32kHz clock source */
WRITE_ST(ST_PIMR, AT91ST_DIVIDER);
/* register interrupt handler */
at91_intr_establish(sc->sc_pid, IPL_CLOCK, INTR_HIGH_LEVEL, at91st_intr, NULL);
/* enable interrupts from timer */
WRITE_ST(ST_IER, ST_SR_PITS);
}
void
cpu_initclocks(void)
{
struct at91tctmr_softc *sc = at91tctmr_sc;
if (!sc || !sc->sc_initialized)
panic("%s: driver has not been initialized! (sc=%p)", __FUNCTION__, sc);
hz = sc->sc_timerclock / sc->sc_divider;
stathz = profhz = 0;
/* set up and enable interval timer 1 as kernel timer, */
/* using 32kHz clock source */
/* register interrupt handler */
at91_intr_establish(sc->sc_pid, IPL_CLOCK, INTR_HIGH_LEVEL, at91tctmr_intr, sc);
/* enable interrupts from timer */
WRITE_TC(sc, TC_IER, TC_SR_CPCS);
}
void
at91usart_attach_subr(struct at91usart_softc *sc, struct at91bus_attach_args *sa)
{
struct tty *tp;
int err;
printf("\n");
if (bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh))
panic("%s: Cannot map registers", device_xname(sc->sc_dev));
sc->sc_iot = sa->sa_iot;
sc->sc_hwbase = sa->sa_addr;
sc->sc_dmat = sa->sa_dmat;
sc->sc_pid = sa->sa_pid;
/* allocate fifos */
err = at91pdc_alloc_fifo(sc->sc_dmat, &sc->sc_rx_fifo, AT91USART_RING_SIZE, BUS_DMA_READ | BUS_DMA_STREAMING);
if (err)
panic("%s: cannot allocate rx fifo", device_xname(sc->sc_dev));
err = at91pdc_alloc_fifo(sc->sc_dmat, &sc->sc_tx_fifo, AT91USART_RING_SIZE, BUS_DMA_WRITE | BUS_DMA_STREAMING);
if (err)
panic("%s: cannot allocate tx fifo", device_xname(sc->sc_dev));
/* initialize uart */
at91_peripheral_clock(sc->sc_pid, 1);
at91usart_writereg(sc, US_IDR, -1);
at91usart_writereg(sc, US_RTOR, 12); // 12-bit timeout
at91usart_writereg(sc, US_PDC + PDC_PTCR, PDC_PTCR_TXTDIS | PDC_PTCR_RXTDIS);
at91_intr_establish(sa->sa_pid, IPL_TTY, INTR_HIGH_LEVEL, at91usart_intr, sc);
USART_INIT(sc, 115200U);
#ifdef NOTYET
if (sc->sc_iot == usart_cn_sc.sc_iot
&& sc->sc_hwbase == usart_cn_sc.sc_hwbase) {
usart_cn_sc.sc_attached = 1;
/* Make sure the console is always "hardwired". */
delay(10000); /* wait for output to finish */
SET(sc->sc_hwflags, COM_HW_CONSOLE);
SET(sc->sc_swflags, TIOCFLAG_SOFTCAR);
SET(sc->sc_ier, USART_INT_RXRDY);
USARTREG(USART_IER) = USART_INT_RXRDY; // @@@@@
}
#endif // NOTYET
tp = tty_alloc();
tp->t_oproc = at91usart_start;
tp->t_param = at91usart_param;
tp->t_hwiflow = at91usart_hwiflow;
sc->sc_tty = tp;
tty_attach(tp);
#if NOTYET
if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
int maj;
/* locate the major number */
maj = cdevsw_lookup_major(&at91usart_cdevsw);
cn_tab->cn_dev = makedev(maj, device_unit(sc->sc_dev));
aprint_normal("%s: console (maj %u min %u cn_dev %u)\n",
device_xname(sc->sc_dev), maj, device_unit(sc->sc_dev),
cn_tab->cn_dev);
}
#endif /* NOTYET */
sc->sc_si = softint_establish(SOFTINT_SERIAL, at91usart_soft, sc);
#ifdef RND_COM
rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev),
RND_TYPE_TTY, RND_FLAG_DEFAULT);
#endif
/* if there are no enable/disable functions, assume the device
is always enabled */
if (!sc->enable)
sc->enabled = 1;
/* XXX configure register */
/* xxx_config(sc) */
SET(sc->sc_hwflags, COM_HW_DEV_OK);
}
static void
at91dbgu_attach(device_t parent, device_t self, void *aux)
{
struct at91dbgu_softc *sc = device_private(self);
struct at91bus_attach_args *sa = aux;
struct tty *tp;
printf("\n");
sc->sc_dev = self;
bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh);
sc->sc_iot = sa->sa_iot;
sc->sc_hwbase = sa->sa_addr;
DBGUREG(DBGU_IDR) = -1;
at91_intr_establish(sa->sa_pid, IPL_SERIAL, INTR_HIGH_LEVEL, dbgu_intr, sc);
DBGU_INIT(AT91_MSTCLK, 115200U);
if (sc->sc_iot == dbgu_cn_sc.sc_iot
&& sc->sc_hwbase == dbgu_cn_sc.sc_hwbase) {
dbgu_cn_sc.sc_attached = 1;
/* Make sure the console is always "hardwired". */
delay(10000); /* wait for output to finish */
SET(sc->sc_hwflags, COM_HW_CONSOLE);
SET(sc->sc_swflags, TIOCFLAG_SOFTCAR);
SET(sc->sc_ier, DBGU_INT_RXRDY);
DBGUREG(DBGU_IER) = DBGU_INT_RXRDY; // @@@@@
}
tp = tty_alloc();
tp->t_oproc = at91dbgu_start;
tp->t_param = at91dbgu_param;
tp->t_hwiflow = at91dbgu_hwiflow;
sc->sc_tty = tp;
sc->sc_rbuf = malloc(AT91DBGU_RING_SIZE << 1, M_DEVBUF, M_NOWAIT);
sc->sc_rbput = sc->sc_rbget = sc->sc_rbuf;
sc->sc_rbavail = AT91DBGU_RING_SIZE;
if (sc->sc_rbuf == NULL) {
printf("%s: unable to allocate ring buffer\n",
device_xname(sc->sc_dev));
return;
}
sc->sc_ebuf = sc->sc_rbuf + (AT91DBGU_RING_SIZE << 1);
sc->sc_tbc = 0;
tty_attach(tp);
if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE)) {
int maj;
/* locate the major number */
maj = cdevsw_lookup_major(&at91dbgu_cdevsw);
cn_tab->cn_dev = makedev(maj, device_unit(sc->sc_dev));
aprint_normal("%s: console (maj %u min %u cn_dev %#"PRIx64")\n",
device_xname(sc->sc_dev), maj, device_unit(sc->sc_dev),
cn_tab->cn_dev);
}
sc->sc_si = softint_establish(SOFTINT_SERIAL, at91dbgu_soft, sc);
#ifdef RND_COM
rnd_attach_source(&sc->rnd_source, device_xname(sc->sc_dev),
RND_TYPE_TTY, 0);
#endif
/* if there are no enable/disable functions, assume the device
is always enabled */
if (!sc->enable)
sc->enabled = 1;
/* XXX configure register */
/* xxx_config(sc) */
SET(sc->sc_hwflags, COM_HW_DEV_OK);
}
void
at91spi_attach_common(device_t parent, device_t self, void *aux,
at91spi_machdep_tag_t md)
{
struct at91spi_softc *sc = device_private(self);
struct at91bus_attach_args *sa = aux;
struct spibus_attach_args sba;
bus_dma_segment_t segs;
int rsegs, err;
aprint_normal(": AT91 SPI Controller\n");
sc->sc_dev = self;
sc->sc_iot = sa->sa_iot;
sc->sc_pid = sa->sa_pid;
sc->sc_dmat = sa->sa_dmat;
sc->sc_md = md;
if (bus_space_map(sa->sa_iot, sa->sa_addr, sa->sa_size, 0, &sc->sc_ioh))
panic("%s: Cannot map registers", device_xname(self));
/* we want to use dma, so allocate dma memory: */
err = bus_dmamem_alloc(sc->sc_dmat, PAGE_SIZE, 0, PAGE_SIZE,
&segs, 1, &rsegs, BUS_DMA_WAITOK);
if (err == 0) {
err = bus_dmamem_map(sc->sc_dmat, &segs, 1, PAGE_SIZE,
&sc->sc_dmapage,
BUS_DMA_WAITOK);
}
if (err == 0) {
err = bus_dmamap_create(sc->sc_dmat, PAGE_SIZE, 1,
PAGE_SIZE, 0, BUS_DMA_WAITOK,
&sc->sc_dmamap);
}
if (err == 0) {
err = bus_dmamap_load(sc->sc_dmat, sc->sc_dmamap,
sc->sc_dmapage, PAGE_SIZE, NULL,
BUS_DMA_WAITOK);
}
if (err != 0) {
panic("%s: Cannot get DMA memory", device_xname(sc->sc_dev));
}
sc->sc_dmaaddr = sc->sc_dmamap->dm_segs[0].ds_addr;
/*
* Initialize SPI controller
*/
sc->sc_spi.sct_cookie = sc;
sc->sc_spi.sct_configure = at91spi_configure;
sc->sc_spi.sct_transfer = at91spi_transfer;
//sc->sc_spi.sct_nslaves must have been initialized by machdep code
if (!sc->sc_spi.sct_nslaves) {
aprint_error("%s: no slaves!\n", device_xname(sc->sc_dev));
}
sba.sba_controller = &sc->sc_spi;
/* initialize the queue */
SIMPLEQ_INIT(&sc->sc_q);
/* reset the SPI */
at91_peripheral_clock(sc->sc_pid, 1);
PUTREG(sc, SPI_CR, SPI_CR_SWRST);
delay(100);
/* be paranoid and make sure the PDC is dead */
PUTREG(sc, SPI_PDC_BASE + PDC_PTCR, PDC_PTCR_TXTDIS | PDC_PTCR_RXTDIS);
PUTREG(sc, SPI_PDC_BASE + PDC_RNCR, 0);
PUTREG(sc, SPI_PDC_BASE + PDC_RCR, 0);
PUTREG(sc, SPI_PDC_BASE + PDC_TNCR, 0);
PUTREG(sc, SPI_PDC_BASE + PDC_TCR, 0);
// configure SPI:
PUTREG(sc, SPI_IDR, -1);
PUTREG(sc, SPI_CSR(0), SPI_CSR_SCBR | SPI_CSR_BITS_8);
PUTREG(sc, SPI_CSR(1), SPI_CSR_SCBR | SPI_CSR_BITS_8);
PUTREG(sc, SPI_CSR(2), SPI_CSR_SCBR | SPI_CSR_BITS_8);
PUTREG(sc, SPI_CSR(3), SPI_CSR_SCBR | SPI_CSR_BITS_8);
PUTREG(sc, SPI_MR, SPI_MR_MODFDIS/* <- machdep? */ | SPI_MR_MSTR);
/* enable device interrupts */
sc->sc_ih = at91_intr_establish(sc->sc_pid, IPL_BIO, INTR_HIGH_LEVEL,
at91spi_intr, sc);
/* enable SPI */
PUTREG(sc, SPI_CR, SPI_CR_SPIEN);
if (GETREG(sc, SPI_SR) & SPI_SR_RDRF)
(void)GETREG(sc, SPI_RDR);
PUTREG(sc, SPI_PDC_BASE + PDC_PTCR, PDC_PTCR_TXTEN | PDC_PTCR_RXTEN);
/* attach slave devices */
(void) config_found_ia(sc->sc_dev, "spibus", &sba, spibus_print);
}
