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authorMagnus Damm <magnus.damm@gmail.com>2008-04-23 21:25:29 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-05-08 19:51:57 +0900
commit346b746300f470bb4a72b66275d6a43987c5dfa6 (patch)
tree3827c877091f8fef576886a96a3fa30dfd368c09 /drivers/serial
parent191d4437b9c028afee1a0568d9c7e6e0b264c703 (diff)
sh-sci: improve sh7722 support
Improve sh7722 support for SCIF1 and SCIF2 and separate code from sh7366 implementation. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/sh-sci.c22
-rw-r--r--drivers/serial/sh-sci.h21
2 files changed, 27 insertions, 16 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 0a051bca01c..8fdafc27fce 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -363,21 +363,19 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
{
unsigned int fcr_val = 0;
+ unsigned short data;
- if (cflag & CRTSCTS) {
- fcr_val |= SCFCR_MCE;
-
- ctrl_outw(0x0000, PORT_PSCR);
- } else {
- unsigned short data;
-
- data = ctrl_inw(PORT_PSCR);
- data &= 0x033f;
- data |= 0x0400;
- ctrl_outw(data, PORT_PSCR);
+ if (port->mapbase == 0xffe00000) {
+ data = ctrl_inw(PSCR);
+ data &= ~0x03cf;
+ if (cflag & CRTSCTS)
+ fcr_val |= SCFCR_MCE;
+ else
+ data |= 0x0340;
- ctrl_outw(ctrl_inw(SCSPTR0) & 0x17, SCSPTR0);
+ ctrl_outw(data, PSCR);
}
+ /* SCIF1 and SCIF2 should be setup by board code */
sci_out(port, SCFCR, fcr_val);
}
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index fa8700a968f..4d1c0e328a0 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -76,12 +76,13 @@
# define SCSCR_INIT(port) 0x32 /* TIE=0,RIE=0,TE=1,RE=1,REIE=0,CKE=1 */
# define SCIF_ONLY
#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
-# define SCPDR0 0xA405013E /* 16 bit SCIF0 PSDR */
-# define SCSPTR0 SCPDR0
+# define PADR 0xA4050120
+# define PSDR 0xA405013e
+# define PWDR 0xA4050166
+# define PSCR 0xA405011E
# define SCIF_ORER 0x0001 /* overrun error bit */
# define SCSCR_INIT(port) 0x0038 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
# define SCIF_ONLY
-# define PORT_PSCR 0xA405011E
#elif defined(CONFIG_CPU_SUBTYPE_SH7366)
# define SCPDR0 0xA405013E /* 16 bit SCIF0 PSDR */
# define SCSPTR0 SCPDR0
@@ -593,13 +594,25 @@ static inline int sci_rxd_in(struct uart_port *port)
return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */
return 1;
}
-#elif defined(CONFIG_CPU_SUBTYPE_SH7722) || defined(CONFIG_CPU_SUBTYPE_SH7366)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7366)
static inline int sci_rxd_in(struct uart_port *port)
{
if (port->mapbase == 0xffe00000)
return ctrl_inb(SCPDR0) & 0x0001 ? 1 : 0; /* SCIF0 */
return 1;
}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7722)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+ if (port->mapbase == 0xffe00000)
+ return ctrl_inb(PSDR) & 0x02 ? 1 : 0; /* SCIF0 */
+ if (port->mapbase == 0xffe10000)
+ return ctrl_inb(PADR) & 0x40 ? 1 : 0; /* SCIF1 */
+ if (port->mapbase == 0xffe20000)
+ return ctrl_inb(PWDR) & 0x04 ? 1 : 0; /* SCIF2 */
+
+ return 1;
+}
#elif defined(CONFIG_CPU_SUBTYPE_SH7723)
static inline int sci_rxd_in(struct uart_port *port)
{