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authorJohn Rigby <john.rigby@linaro.org>2011-04-19 10:42:39 +0000
committerWolfgang Denk <wd@denx.de>2011-05-12 19:09:07 +0200
commit910f1ae3eb05533ac0c7f7fe5b31b50b91f7f0e1 (patch)
tree9ef4f320297799db6bf99aa0ea5d29d2bcf492fb /README
parent264eaa0ea967bac32214b87d60cfc86c8b22cac6 (diff)
Serial: p1011: new vendor init options
Two new options: CONFIG_PL011_SERIAL_RLCR Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500) have separate receive and transmit line control registers. Set this variable to initialize the extra register. CONFIG_PL011_SERIAL_FLUSH_ON_INIT On some platforms (e.g. U8500) U-Boot is loaded by a second stage boot loader that has already initialized the UART. Define this variable to flush the UART at init time. empty fifo on init Signed-off-by: John Rigby <john.rigby@linaro.org> Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Diffstat (limited to 'README')
-rw-r--r--README12
1 files changed, 12 insertions, 0 deletions
diff --git a/README b/README
index 76b150005f8..68ef2b2e998 100644
--- a/README
+++ b/README
@@ -475,6 +475,18 @@ The following options need to be configured:
define this to a list of base addresses for each (supported)
port. See e.g. include/configs/versatile.h
+ CONFIG_PL011_SERIAL_RLCR
+
+ Some vendor versions of PL011 serial ports (e.g. ST-Ericsson U8500)
+ have separate receive and transmit line control registers. Set
+ this variable to initialize the extra register.
+
+ CONFIG_PL011_SERIAL_FLUSH_ON_INIT
+
+ On some platforms (e.g. U8500) U-Boot is loaded by a second stage
+ boot loader that has already initialized the UART. Define this
+ variable to flush the UART at init time.
+
- Console Interface:
Depending on board, define exactly one serial port