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path: root/drivers/serial/sh-sci.c
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Diffstat (limited to 'drivers/serial/sh-sci.c')
-rw-r--r--drivers/serial/sh-sci.c33
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 68c7f6cfd728..42f3333c4ad0 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -222,9 +222,9 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
222 Set SCP6MD1,0 = {01} (output) */ 222 Set SCP6MD1,0 = {01} (output) */
223 __raw_writew((data & 0x0fcf) | 0x1000, SCPCR); 223 __raw_writew((data & 0x0fcf) | 0x1000, SCPCR);
224 224
225 data = ctrl_inb(SCPDR); 225 data = __raw_readb(SCPDR);
226 /* Set /RTS2 (bit6) = 0 */ 226 /* Set /RTS2 (bit6) = 0 */
227 ctrl_outb(data & 0xbf, SCPDR); 227 __raw_writeb(data & 0xbf, SCPDR);
228 } 228 }
229} 229}
230#elif defined(CONFIG_CPU_SUBTYPE_SH7722) 230#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
@@ -897,11 +897,21 @@ static void sci_shutdown(struct uart_port *port)
897static void sci_set_termios(struct uart_port *port, struct ktermios *termios, 897static void sci_set_termios(struct uart_port *port, struct ktermios *termios,
898 struct ktermios *old) 898 struct ktermios *old)
899{ 899{
900 unsigned int status, baud, smr_val; 900 unsigned int status, baud, smr_val, max_baud;
901 int t = -1; 901 int t = -1;
902 902
903 baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/16); 903 /*
904 if (likely(baud)) 904 * earlyprintk comes here early on with port->uartclk set to zero.
905 * the clock framework is not up and running at this point so here
906 * we assume that 115200 is the maximum baud rate. please note that
907 * the baud rate is not programmed during earlyprintk - it is assumed
908 * that the previous boot loader has enabled required clocks and
909 * setup the baud rate generator hardware for us already.
910 */
911 max_baud = port->uartclk ? port->uartclk / 16 : 115200;
912
913 baud = uart_get_baud_rate(port, termios, old, 0, max_baud);
914 if (likely(baud && port->uartclk))
905 t = SCBRR_VALUE(baud, port->uartclk); 915 t = SCBRR_VALUE(baud, port->uartclk);
906 916
907 do { 917 do {
@@ -1042,7 +1052,18 @@ static void __devinit sci_init_single(struct platform_device *dev,
1042 sci_port->port.ops = &sci_uart_ops; 1052 sci_port->port.ops = &sci_uart_ops;
1043 sci_port->port.iotype = UPIO_MEM; 1053 sci_port->port.iotype = UPIO_MEM;
1044 sci_port->port.line = index; 1054 sci_port->port.line = index;
1045 sci_port->port.fifosize = 1; 1055
1056 switch (p->type) {
1057 case PORT_SCIFA:
1058 sci_port->port.fifosize = 64;
1059 break;
1060 case PORT_SCIF:
1061 sci_port->port.fifosize = 16;
1062 break;
1063 default:
1064 sci_port->port.fifosize = 1;
1065 break;
1066 }
1046 1067
1047 if (dev) { 1068 if (dev) {
1048 sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL; 1069 sci_port->iclk = p->clk ? clk_get(&dev->dev, p->clk) : NULL;