static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct sci_port *s = &sci_ports[port->line];
unsigned int status, baud, smr_val;
unsigned long flags;
int t;
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
switch (baud) {
case 0:
t = -1;
break;
default:
{
#if defined(CONFIG_SUPERH) && !defined(CONFIG_SUPERH64)
struct clk *clk = clk_get(NULL, "module_clk");
t = SCBRR_VALUE(baud, clk_get_rate(clk));
clk_put(clk);
#else
t = SCBRR_VALUE(baud);
#endif
}
break;
}
spin_lock_irqsave(&port->lock, flags);
do {
status = sci_in(port, SCxSR);
} while (!(status & SCxSR_TEND(port)));
sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */
#if !defined(SCI_ONLY)
if (port->type == PORT_SCIF)
sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
#endif
smr_val = sci_in(port, SCSMR) & 3;
if ((termios->c_cflag & CSIZE) == CS7)
smr_val |= 0x40;
if (termios->c_cflag & PARENB)
smr_val |= 0x20;
if (termios->c_cflag & PARODD)
smr_val |= 0x30;
if (termios->c_cflag & CSTOPB)
smr_val |= 0x08;
uart_update_timeout(port, termios->c_cflag, baud);
sci_out(port, SCSMR, smr_val);
if (t > 0) {
if(t >= 256) {
sci_out(port, SCSMR, (sci_in(port, SCSMR) & ~3) | 1);
t >>= 2;
} else {
void serial_raw_putc(const char c)
{
while (1) {
/* Tx fifo is empty */
if (sci_in(&sh_sci, SCxSR) & SCxSR_TEND(&sh_sci))
break;
}
sci_out(&sh_sci, SCxTDR, c);
sci_out(&sh_sci, SCxSR, sci_in(&sh_sci, SCxSR) & ~SCxSR_TEND(&sh_sci));
}
/*
* Simple SCIF init, primarily aimed at SH7750 and other similar SH-4
* devices that aren't using sh-ipl+g.
*/
static void scif_sercon_init(char *s)
{
struct uart_port *port = &scif_port;
unsigned baud = DEFAULT_BAUD;
unsigned int status;
char *e;
if (*s == ',')
++s;
if (*s) {
/* ignore ioport/device name */
s += strcspn(s, ",");
if (*s == ',')
s++;
}
if (*s) {
baud = simple_strtoul(s, &e, 0);
if (baud == 0 || s == e)
baud = DEFAULT_BAUD;
}
do {
status = sci_in(port, SCxSR);
} while (!(status & SCxSR_TEND(port)));
sci_out(port, SCSCR, 0); /* TE=0, RE=0 */
sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
sci_out(port, SCSMR, 0);
/* Set baud rate */
sci_out(port, SCBRR, (CONFIG_SH_PCLK_FREQ + 16 * baud) /
(32 * baud) - 1);
udelay((1000000+(baud-1)) / baud); /* Wait one bit interval */
sci_out(port, SCSPTR, 0);
sci_out(port, SCxSR, 0x60);
sci_out(port, SCLSR, 0);
sci_out(port, SCFCR, 0);
sci_out(port, SCSCR, 0x30); /* TE=1, RE=1 */
}
static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
struct ktermios *old)
{
struct sci_port *s = &sci_ports[port->line];
unsigned int status, baud, smr_val;
int t = -1;
baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16);
if (likely(baud))
t = SCBRR_VALUE(baud, port->uartclk);
do {
status = sci_in(port, SCxSR);
} while (!(status & SCxSR_TEND(port)));
sci_out(port, SCSCR, 0x00); /* TE=0, RE=0, CKE1=0 */
#if !defined(SCI_ONLY)
if (port->type == PORT_SCIF)
sci_out(port, SCFCR, SCFCR_RFRST | SCFCR_TFRST);
#endif
smr_val = sci_in(port, SCSMR) & 3;
if ((termios->c_cflag & CSIZE) == CS7)
smr_val |= 0x40;
if (termios->c_cflag & PARENB)
smr_val |= 0x20;
if (termios->c_cflag & PARODD)
smr_val |= 0x30;
if (termios->c_cflag & CSTOPB)
smr_val |= 0x08;
uart_update_timeout(port, termios->c_cflag, baud);
sci_out(port, SCSMR, smr_val);
if (t > 0) {
if(t >= 256) {
sci_out(port, SCSMR, (sci_in(port, SCSMR) & ~3) | 1);
t >>= 2;
} else {