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authorStephen Hurd <shurd@broadcom.com>2013-01-17 14:14:53 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2013-01-17 14:02:55 -0800
commitebebd49a8eab5e9aa1b1f8f1614ccc3c2120f886 (patch)
treed5f471e4bead7804b6db1ce7ab3b7a48ad795289 /include
parentded2f295a36d17838fe97e80d7b6ea83381474f8 (diff)
downloadlinux-ebebd49a8eab5e9aa1b1f8f1614ccc3c2120f886.tar.gz
8250/16?50: Add support for Broadcom TruManage redirected serial port
Add support for the UART device present in Broadcom TruManage capable NetXtreme chips (ie: 5761m 5762, and 5725). This implementation has a hidden transmit FIFO, so running in single-byte interrupt mode results in too many interrupts. The UART_CAP_HFIFO capability was added to track this. It continues to reload the THR as long as the THRE and TSRE bits are set in the LSR up to a specified limit (1024 is used here). Signed-off-by: Stephen Hurd <shurd@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Cc: stable <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/uapi/linux/serial_core.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/serial_core.h b/include/uapi/linux/serial_core.h
index 78f99d97475..2c6c85f18ea 100644
--- a/include/uapi/linux/serial_core.h
+++ b/include/uapi/linux/serial_core.h
@@ -50,7 +50,8 @@
#define PORT_LPC3220 22 /* NXP LPC32xx SoC "Standard" UART */
#define PORT_8250_CIR 23 /* CIR infrared port, has its own driver */
#define PORT_XR17V35X 24 /* Exar XR17V35x UARTs */
-#define PORT_MAX_8250 24 /* max port ID */
+#define PORT_BRCM_TRUMANAGE 24
+#define PORT_MAX_8250 25 /* max port ID */
/*
* ARM specific type numbers. These are not currently guaranteed