/// Init and test SPIFI in command mode
void spiflash_init() {
spifi_pinmux();
spifi_reset();
volatile uint32_t cfi = spiflash_cfi();
while(cfi != 0x010219); // Assert CFI chip ID is as expected
}
_ramfunc void spiflash_enter_cmd_mode() {
__disable_irq();
SCnSCB->ACTLR &= ~2;
spifi_reset();
}
void
spifi_attach(device_t parent, device_t self, void *aux)
{
struct spifi_softc *sc = device_private(self);
struct apbus_attach_args *apa = aux;
struct dmac3_softc *dma;
int intr, i;
sc->sc_dev = self;
/* Initialize scbs. */
TAILQ_INIT(&sc->free_scb);
TAILQ_INIT(&sc->ready_scb);
for (i = 0; i < __arraycount(sc->sc_scb); i++)
TAILQ_INSERT_TAIL(&sc->free_scb, &sc->sc_scb[i], chain);
sc->sc_reg = (struct spifi_reg *)apa->apa_hwbase;
sc->sc_id = 7; /* XXX */
/* Find my dmac3. */
dma = dmac3_link(apa->apa_ctlnum);
if (dma == NULL) {
aprint_error(": cannot find slave dmac\n");
return;
}
sc->sc_dma = dma;
aprint_normal(" slot%d addr 0x%lx", apa->apa_slotno, apa->apa_hwbase);
aprint_normal(": SCSI ID = %d, using %s\n",
sc->sc_id, device_xname(dma->sc_dev));
dmac3_reset(sc->sc_dma);
DMAC3_SLOWACCESS(sc);
spifi_reset(sc);
DMAC3_FASTACCESS(sc);
sc->sc_adapter.adapt_dev = self;
sc->sc_adapter.adapt_nchannels = 1;
sc->sc_adapter.adapt_openings = 7;
sc->sc_adapter.adapt_max_periph = 1;
sc->sc_adapter.adapt_ioctl = NULL;
sc->sc_adapter.adapt_minphys = minphys;
sc->sc_adapter.adapt_request = spifi_scsipi_request;
memset(&sc->sc_channel, 0, sizeof(sc->sc_channel));
sc->sc_channel.chan_adapter = &sc->sc_adapter;
sc->sc_channel.chan_bustype = &scsi_bustype;
sc->sc_channel.chan_channel = 0;
sc->sc_channel.chan_ntargets = 8;
sc->sc_channel.chan_nluns = 8;
sc->sc_channel.chan_id = sc->sc_id;
if (apa->apa_slotno == 0)
intr = NEWS5000_INT0_DMAC;
else
intr = SLOTTOMASK(apa->apa_slotno);
apbus_intr_establish(0, intr, 0, spifi_intr, sc, apa->apa_name,
apa->apa_ctlnum);
config_found(self, &sc->sc_channel, scsiprint);
}
