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authorPhilippe Langlais <philippe.langlais@stericsson.com>2010-07-29 17:13:57 +0200
committerGreg Kroah-Hartman <gregkh@suse.de>2010-08-10 13:47:46 -0700
commit235dae5d094c415fcf0fc79fa637f1901bc8afe2 (patch)
tree947ea700996f68c0a601cb2a0204d475ca131f32 /include/linux/serial.h
parentbf9c1fca9ae9a79ed209e7ab2c10b3862f3f6f72 (diff)
downloadop-kernel-dev-235dae5d094c415fcf0fc79fa637f1901bc8afe2.zip
op-kernel-dev-235dae5d094c415fcf0fc79fa637f1901bc8afe2.tar.gz
U6715 16550A serial driver support
UART Features extract from STEricsson U6715 data-sheet (arm926 SoC for mobile phone): * Fully compatible with industry standard 16C550 and 16C450 from various manufacturers * RX and TX 64 byte FIFO reduces CPU interrupts * Full double buffering * Modem control signals include CTS, RTS, (and DSR, DTR on UART1 only) * Automatic baud rate selection * Manual or automatic RTS/CTS smart hardware flow control * Programmable serial characteristics: – Baud rate generation (50 to 3.25M baud) – 5, 6, 7 or 8-bit characters – Even, odd or no-parity bit generation and detection – 1, 1.5 or 2 stop bit generation * Independent control of transmit, receive, line status, data set interrupts and FIFOs * Full status-reporting capabilities * Separate DMA signaling for RX and TX * Timed interrupt to spread receive interrupt on known duration * DMA time-out interrupt to allow detection of end of reception * Carkit pulse coding and decoding compliant with USB carkit control interface [40] In 16550A auto-configuration, if the fifo size is 64 then it's an U6 16550A port Add set_termios hook & export serial8250_do_set_termios to change uart clock following baudrate Signed-off-by: Philippe Langlais <philippe.langlais@stericsson.com> Acked-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'include/linux/serial.h')
-rw-r--r--include/linux/serial.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/serial.h b/include/linux/serial.h
index ef91406..1ebc694 100644
--- a/include/linux/serial.h
+++ b/include/linux/serial.h
@@ -77,7 +77,8 @@ struct serial_struct {
#define PORT_16654 11
#define PORT_16850 12
#define PORT_RSA 13 /* RSA-DV II/S card */
-#define PORT_MAX 13
+#define PORT_U6_16550A 14
+#define PORT_MAX 14
#define SERIAL_IO_PORT 0
#define SERIAL_IO_HUB6 1
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