static void sb1250_uart_probe(cfe_driver_t *drv,
unsigned long probe_a, unsigned long probe_b,
void *probe_ptr)
{
sb1250_uart_t *softc;
char descr[80];
/*
* probe_a is the DUART base address.
* probe_b is the channel-number-within-duart (0 or 1)
* probe_ptr is unused.
*/
softc = (sb1250_uart_t *) KMALLOC(sizeof(sb1250_uart_t),0);
if (softc) {
softc->uart_mode_reg_1 = probe_a + R_DUART_CHANREG(probe_b,R_DUART_MODE_REG_1);
softc->uart_mode_reg_2 = probe_a + R_DUART_CHANREG(probe_b,R_DUART_MODE_REG_2);
softc->uart_clk_sel = probe_a + R_DUART_CHANREG(probe_b,R_DUART_CLK_SEL);
softc->uart_cmd = probe_a + R_DUART_CHANREG(probe_b,R_DUART_CMD);
softc->uart_status = probe_a + R_DUART_CHANREG(probe_b,R_DUART_STATUS);
softc->uart_tx_hold = probe_a + R_DUART_CHANREG(probe_b,R_DUART_TX_HOLD);
softc->uart_rx_hold = probe_a + R_DUART_CHANREG(probe_b,R_DUART_RX_HOLD);
softc->uart_imr = probe_a + R_DUART_IMRREG(probe_b);
softc->uart_oprset = probe_a + R_DUART_SET_OPR;
xsprintf(descr,"%s at 0x%X channel %d",drv->drv_description,probe_a,probe_b);
softc->uart_speed = CFG_SERIAL_BAUD_RATE;
softc->uart_flowcontrol = SERIAL_FLOW_NONE;
cfe_attach(drv,softc,NULL,descr);
}
}
void bcm1250DuartDevInit
(
BCM1250_DUART_CHAN * pChan
)
{
int oldlevel;
pChan->intEnable = FALSE;
if((pChan->channel != BCM1250_DUART_CHANNEL_A ) &&
(pChan->channel != BCM1250_DUART_CHANNEL_B))
return;
pChan->duartBase = (void *)PHYS_TO_K1(A_DUART);
pChan->chanBase = pChan->duartBase + R_DUART_CHANREG(pChan->channel, 0);
pChan->chanIMR = (unsigned long long *)
(pChan->duartBase + R_DUART_IMRREG(pChan->channel));
pChan->chanISR = (unsigned long long *)
(pChan->duartBase + R_DUART_ISRREG(pChan->channel));
pChan->intSource = (pChan->channel == BCM1250_DUART_CHANNEL_A) ?
K_INT_UART_0 : K_INT_UART_1;
/* clear delta interrupts */
bcm1250DuartAcrSet (pChan, 0);
/* don't relay TX clock on output in */
bcm1250DuartTxCoutRelay (pChan, FALSE );
/* assert RTS (request to send ) */
bcm1250DuartRts (pChan, TRUE);
/* init callbacks and set default options */
bcm1250DuartInitStruct (pChan);
oldlevel = intLock ();
/* Clear the interrupt mask register */
MIPS3_SD(pChan->chanIMR, 0);
bcm1250DuartInitChannel (pChan);
intUnlock (oldlevel);
}