diff options
Diffstat (limited to 'drivers/serial/sh-sci.c')
| -rw-r--r-- | drivers/serial/sh-sci.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c index 557b54ab2f25..dbf5357a77b3 100644 --- a/drivers/serial/sh-sci.c +++ b/drivers/serial/sh-sci.c @@ -139,7 +139,7 @@ static void sci_poll_put_char(struct uart_port *port, unsigned char c) } while (!(status & SCxSR_TDxE(port))); sci_in(port, SCxSR); /* Dummy read */ - sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port)); + sci_out(port, SCxSR, SCxSR_TDxE_CLEAR(port) & ~SCxSR_TEND(port)); sci_out(port, SCxTDR, c); } #endif /* CONFIG_CONSOLE_POLL || CONFIG_SERIAL_SH_SCI_CONSOLE */ @@ -263,6 +263,7 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) #elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \ defined(CONFIG_CPU_SUBTYPE_SH7780) || \ defined(CONFIG_CPU_SUBTYPE_SH7785) || \ + defined(CONFIG_CPU_SUBTYPE_SH7786) || \ defined(CONFIG_CPU_SUBTYPE_SHX3) static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) { @@ -284,7 +285,8 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag) #if defined(CONFIG_CPU_SUBTYPE_SH7760) || \ defined(CONFIG_CPU_SUBTYPE_SH7780) || \ - defined(CONFIG_CPU_SUBTYPE_SH7785) + defined(CONFIG_CPU_SUBTYPE_SH7785) || \ + defined(CONFIG_CPU_SUBTYPE_SH7786) static inline int scif_txroom(struct uart_port *port) { return SCIF_TXROOM_MAX - (sci_in(port, SCTFDR) & 0xff); @@ -1095,6 +1097,7 @@ static void serial_console_write(struct console *co, const char *s, unsigned count) { struct uart_port *port = &serial_console_port->port; + unsigned short bits; int i; for (i = 0; i < count; i++) { @@ -1103,6 +1106,11 @@ static void serial_console_write(struct console *co, const char *s, sci_poll_put_char(port, *s++); } + + /* wait until fifo is empty and last bit has been transmitted */ + bits = SCxSR_TDxE(port) | SCxSR_TEND(port); + while ((sci_in(port, SCxSR) & bits) != bits) + cpu_relax(); } static int __init serial_console_setup(struct console *co, char *options) |