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authorGary Jennejohn <garyj@denx.de>2008-11-06 15:04:23 +0100
committerWolfgang Denk <wd@denx.de>2008-12-07 01:23:35 +0100
commit16a28ef219c27423a1ef502f19070c4d375079b8 (patch)
tree2241bdb2293824bdb7b82e1ff8d54e9246c81bcc /common/Makefile
parent774ce72026f74ac9641bcbbc588b20f2e13f7ab8 (diff)
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IOMUX: Add console multiplexing support.
Modifications to support console multiplexing. This is controlled using CONFIG_SYS_CONSOLE_MUX in the board configuration file. This allows a user to specify multiple console devices in the environment with a command like this: setenv stdin serial,nc. As a result, the user can enter text on both the serial and netconsole interfaces. All devices - stdin, stdout and stderr - can be set in this manner. 1) common/iomux.c and include/iomux.h contain the environment setting implementation. 2) doc/README.iomux contains a somewhat more detailed description. 3) The implementation in (1) is called from common/cmd_nvedit.c to handle setenv and from common/console.c to handle initialization of input/output devices at boot time. 4) common/console.c also contains the code needed to poll multiple console devices for input and send output to all devices registered for output. 5) include/common.h includes iomux.h and common/Makefile generates iomux.o when CONFIG_SYS_CONSOLE_MUX is set. Signed-off-by: Gary Jennejohn <garyj@denx.de>
Diffstat (limited to 'common/Makefile')
-rw-r--r--common/Makefile1
1 files changed, 1 insertions, 0 deletions
diff --git a/common/Makefile b/common/Makefile
index 596fef3..93e3963 100644
--- a/common/Makefile
+++ b/common/Makefile
@@ -142,6 +142,7 @@ COBJS-$(CONFIG_VFD) += cmd_vfd.o
# others
COBJS-$(CONFIG_DDR_SPD) += ddr_spd.o
COBJS-$(CONFIG_CMD_DOC) += docecc.o
+COBJS-$(CONFIG_CONSOLE_MUX) += iomux.o
COBJS-y += flash.o
COBJS-y += kgdb.o
COBJS-$(CONFIG_LCD) += lcd.o