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authorNobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>2008-06-06 17:04:08 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-07-28 18:10:29 +0900
commitc63847a3621d2bac054f5709783860ecabd0ee7e (patch)
treea04e0aca07d0a672a56b1611544f7d2da0b621e4 /drivers/serial/sh-sci.c
parent04e917b606ffe6ec10fb75c21447162cba31f6b6 (diff)
downloadop-kernel-dev-c63847a3621d2bac054f5709783860ecabd0ee7e.zip
op-kernel-dev-c63847a3621d2bac054f5709783860ecabd0ee7e.tar.gz
sh: Add SCIF2 support for SH7763.
SH7763 has 3 SCIF device. Current code supports SCIF0 and 1. SCIF0 and 1 are same register constitution, but only SCIF2 is different. I added support of SCIF2. Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'drivers/serial/sh-sci.c')
-rw-r--r--drivers/serial/sh-sci.c17
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 208e42b..3df2aae 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -410,7 +410,6 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
#endif
#if defined(CONFIG_CPU_SUBTYPE_SH7760) || \
- defined(CONFIG_CPU_SUBTYPE_SH7763) || \
defined(CONFIG_CPU_SUBTYPE_SH7780) || \
defined(CONFIG_CPU_SUBTYPE_SH7785)
static inline int scif_txroom(struct uart_port *port)
@@ -422,6 +421,22 @@ static inline int scif_rxroom(struct uart_port *port)
{
return sci_in(port, SCRFDR) & 0xff;
}
+#elif defined(CONFIG_CPU_SUBTYPE_SH7763)
+static inline int scif_txroom(struct uart_port *port)
+{
+ if((port->mapbase == 0xffe00000) || (port->mapbase == 0xffe08000)) /* SCIF0/1*/
+ return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0xff);
+ else /* SCIF2 */
+ return SCIF2_TXROOM_MAX - (sci_in(port, SCFDR) >> 8);
+}
+
+static inline int scif_rxroom(struct uart_port *port)
+{
+ if((port->mapbase == 0xffe00000) || (port->mapbase == 0xffe08000)) /* SCIF0/1*/
+ return sci_in(port, SCRFDR) & 0xff;
+ else /* SCIF2 */
+ return sci_in(port, SCFDR) & SCIF2_RFDC_MASK;
+}
#else
static inline int scif_txroom(struct uart_port *port)
{
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