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authorStephen Hurd <shurd@broadcom.com>2013-01-17 14:14:53 -0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2014-06-11 12:04:22 -0700
commit7400ce7ee9595432b2a1402b6ffcac9faf38d9ae (patch)
tree503adb664766a260d308d47ddfd3e48598deaceb /tools
parenteb2249dc3d9d9c6ce6f8bd292770ff72400faab6 (diff)
8250/16?50: Add support for Broadcom TruManage redirected serial port
commit ebebd49a8eab5e9aa1b1f8f1614ccc3c2120f886 upstream. 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> [xr: Backported to 3.4: - Adjust filenames - Adjust context - PORT_BRCM_TRUMANAGE is 22 not 24] Cc: Ben Hutchings <ben@decadent.org.uk> Signed-off-by: Rui Xiang <rui.xiang@huawei.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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