/***********************************************************************
*
* masterFpgaSerialInit - initialize the Master FPGA serial devices to a quiescent state
*
* This routine initializes the Master FPGA serial device descriptors and puts the
* devices in a quiescent state. It is called from bringup() with
* interrupts locked.
*
* RETURNS: N/A
*
*/
void masterFpgaSerialInit(void)
{
/*
* intialize serial device 0 descriptors (S0)
*/
ns16550Chan0.regs = (UINT8*) FPGA_UART0_BASE;
ns16550Chan0.channelMode = SIO_MODE_INT;
ns16550Chan0.level = (UINT8) FPGA_EXT_INT_IRQ; /* a wild guess , this looks good 25 */
ns16550Chan0.regDelta = UART_REG_ADDR_INTERVAL;
ns16550Chan0.xtal = 66666666; /* 66 MHz */
ns16550Chan0.baudRate = 9600;
/*
* intialize serial device 1 descriptors (S1)
*/
ns16550Chan1.regs = (UINT8*) FPGA_UART1_BASE;
ns16550Chan1.channelMode = SIO_MODE_INT;
ns16550Chan1.level = (UINT8) FPGA_EXT_INT_IRQ; /*a wild guess, this looks good 25 */
ns16550Chan1.regDelta = UART_REG_ADDR_INTERVAL;
ns16550Chan1.xtal = 66666666;
ns16550Chan1.baudRate = 9600;
/*
* intialize serial device 2 descriptors (S2)
*/
ns16550Chan2.regs = (UINT8*) FPGA_UART2_BASE;
ns16550Chan2.channelMode = SIO_MODE_INT;
ns16550Chan2.level = (UINT8) FPGA_EXT_INT_IRQ; /*a wild guess, this looks good 25 */
ns16550Chan2.regDelta = UART_REG_ADDR_INTERVAL;
ns16550Chan2.xtal = 66666666;
ns16550Chan2.baudRate = 9600;
/*
* intialize serial device 3 descriptors (S3)
*/
ns16550Chan3.regs = (UINT8*) FPGA_UART3_BASE;
ns16550Chan3.channelMode = SIO_MODE_INT;
ns16550Chan3.level = (UINT8) FPGA_EXT_INT_IRQ; /*a wild guess, this looks good 25 */
ns16550Chan3.regDelta = UART_REG_ADDR_INTERVAL;
ns16550Chan3.xtal = 66666666;
ns16550Chan3.baudRate = 9600;
/* initialize chan pointer array for interrupt service routine */
ns16550Chans[0] = &ns16550Chan0;
ns16550Chans[1] = &ns16550Chan1;
ns16550Chans[2] = &ns16550Chan2;
ns16550Chans[3] = &ns16550Chan3;
/*
* reset both devices
*/
ns16550DevInit(&ns16550Chan0);
ns16550DevInit(&ns16550Chan1);
ns16550DevInit(&ns16550Chan2);
ns16550DevInit(&ns16550Chan3);
}
void sysDuartHwInit (void)
{
int i;
eumbbar_base = (char *)CCSBAR;
for (i = 0; i < N_DUART_CHANNELS; i++)
{
ns16550Chan[i].regs = (UINT8 *)devDuartParas[i].baseAdrs;
ns16550Chan[i].level = devDuartParas[i].intLevel;
ns16550Chan[i].channelMode = SIO_MODE_INT;
ns16550Chan[i].regDelta = devDuartParas[i].regSpace;
ns16550Chan[i].baudRate = DUART_BAUD;
ns16550Chan[i].xtal = sysClkFreqGet();
ns16550DevInit (&ns16550Chan[i]);
}
if (ns16550Chan[0].channelMode == SIO_MODE_INT)
{
eumbbar_base[UDCR2] = 0x01; /* set duart mode */
eumbbar_base[ULCR2] = 0x80; /* open DLAB */
eumbbar_base[UAFR2] = 0x00;
eumbbar_base[UDMB2] = 0x0a; /* MSB 9600bps @400Mhz */
eumbbar_base[UDLB2] = 0xaa; /* LSB */
eumbbar_base[ULCR2] = 0x03; /* clear DLAB, no-parity, 1stop bit, 8bit data */
eumbbar_base[UMCR2] = 0x02; /* disable loopback mode */
eumbbar_base[UIER2] = 0x03; /* Tx empty, Rx interrupt enable */
}
} /* sysDuartHwInit () */
