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u-boot/common
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Gary Jennejohn 16a28ef219 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>
2008-12-07 01:23:35 +01:00
..
bedbug.c common: Move conditional compilation to Makefile 2008-08-13 01:40:38 +02:00
circbuf.c Add support for Siemens SX1 mobile phone; 2004-03-12 00:14:09 +00:00
cmd_ambapp.c Coding Style cleanup; update CHANGELOG 2008-04-13 09:59:26 -07:00
cmd_autoscript.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_bdinfo.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_bedbug.c Consolidate MAX/MIN definitions 2008-11-02 16:23:46 +01:00
cmd_bmp.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_boot.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_bootldr.c Blackfin: move bootldr command to common code 2008-03-15 22:13:58 -04:00
cmd_bootm.c bootm: Added CONFIG_BOOTM_{LINUX, NETBSD, RTEMS} 2008-10-29 01:00:20 +01:00
cmd_cache.c common/: Remove lingering references to CFG_CMD_* symbols. 2007-07-10 11:02:44 -05:00
cmd_console.c devices: merge to list_head 2008-08-31 04:24:55 +02:00
cmd_cplbinfo.c Blackfin: new cplbinfo command for viewing cplb tables 2008-03-15 22:14:54 -04:00
cmd_date.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_dcr.c Big white-space cleanup. 2008-05-21 00:14:08 +02:00
cmd_df.c SPI API improvements 2008-06-03 20:28:50 +02:00
cmd_diag.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_display.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_doc.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_dtt.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_eeprom.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_elf.c cmd_elf.c: Cleanup bootvx and handle new CONFIG_SYS_VXWORKS parameters 2008-12-07 00:18:53 +01:00
cmd_ext2.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_fat.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_fdc.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_fdos.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_fdt.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_flash.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_fpga.c Code cleanup: fix old style assignment ambiguities like "=-" etc. 2008-07-14 15:19:07 +02:00
cmd_i2c.c Coding Style cleanup, update CHANGELOG 2008-11-02 16:14:22 +01:00
cmd_ide.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_immap.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_irq.c Add command to enable/disable interrupts 2008-08-21 00:53:02 +02:00
cmd_itest.c move cmd_get_data_size to command.c 2008-09-10 22:48:05 +02:00
cmd_jffs2.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_license.c Add 'license' command to U-Boot command line 2008-08-18 23:21:49 +02:00
cmd_load.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_log.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_mac.c cmd_mac: Move conditional compilation to Makefile 2008-09-10 21:09:37 +02:00
cmd_mem.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_mfsl.c Fix merge problems 2008-08-06 14:05:38 +02:00
cmd_mii.c Add CONFIG_MII_INIT support to related boards 2008-04-13 23:03:02 -07:00
cmd_misc.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_mmc.c [BUILD] conditionally compile common/cmd_*.c in common/Makefile 2007-11-20 22:33:54 -07:00
cmd_mp.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_nand.c NAND: Align right column of the shorthelp with other commands. 2008-10-29 10:42:18 -05:00
cmd_net.c Standardize bootp, tftpboot, rarpboot, dhcp, and nfs command descriptions 2008-08-26 22:46:23 -07:00
cmd_nvedit.c IOMUX: Add console multiplexing support. 2008-12-07 01:23:35 +01:00
cmd_onenand.c Fix OneNAND read_oob/write_oob functions compatability 2008-08-21 13:50:20 -05:00
cmd_otp.c interface to Blackfin on-chip One-Time-Programmable memory 2008-02-04 19:26:57 -05:00
cmd_pci.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_pcmcia.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_portio.c move cmd_get_data_size to command.c 2008-09-10 22:48:05 +02:00
cmd_reginfo.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_reiser.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_sata.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_scsi.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
cmd_setexpr.c Add setexpr command 2008-03-25 22:16:15 +01:00
cmd_sf.c SPI Flash: Add "sf" command 2008-06-03 20:32:25 +02:00
cmd_spi.c cmd_spi: remove broken signed casting for display 2008-10-14 14:19:34 +02:00
cmd_strings.c strings: use puts() rather than printf() 2008-12-07 01:17:19 +01:00
cmd_terminal.c devices: merge to list_head 2008-08-31 04:24:55 +02:00
cmd_ubi.c UBI: Add proof-of-concept CFI flash support 2008-11-24 11:33:33 +01:00
cmd_universe.c [BUILD] conditionally compile common/cmd_*.c in common/Makefile 2007-11-20 22:33:54 -07:00
cmd_usb.c Remove obsolete command (apply afte USB style patch, 80 chars strict) 2008-11-28 21:24:13 +01:00
cmd_vfd.c cmd_vfd: Move conditional compilation to Makefile 2008-09-10 21:09:37 +02:00
cmd_ximg.c Memory footprint optimizations 2008-04-24 17:21:55 +02:00
cmd_yaffs2.c Minor coding style cleanup, updte CHANGELOG 2008-08-25 23:45:41 +02:00
command.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
console.c IOMUX: Add console multiplexing support. 2008-12-07 01:23:35 +01:00
ddr_spd.c Add proper SPD definitions for DDR1/2/3 2008-08-27 02:05:53 +02:00
devices.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
dlmalloc.c Fix merge problems 2008-08-06 14:05:38 +02:00
dlmalloc.src * Code cleanup: 2003-06-27 21:31:46 +00:00
docecc.c common: Move conditional compilation to Makefile 2008-08-13 01:40:38 +02:00
env_common.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
env_dataflash.c rename CFG_ENV macros to CONFIG_ENV 2008-09-10 22:48:06 +02:00
env_eeprom.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
env_embedded.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
env_flash.c rename CFG_ENV macros to CONFIG_ENV 2008-09-10 22:48:06 +02:00
env_nand.c rename CFG_ENV macros to CONFIG_ENV 2008-09-10 22:48:06 +02:00
env_nowhere.c env_nowhere: Move conditional compilation to Makefile 2008-09-10 22:48:01 +02:00
env_nvram.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
env_onenand.c OneNAND: Add missing mtd info struct before calling onenand_erase() 2008-12-02 13:48:15 -06:00
env_sf.c rename CFG_ENV macros to CONFIG_ENV 2008-09-10 22:48:06 +02:00
exports.c Add functions to list of exported functions 2007-08-06 00:45:40 +02:00
fdt_support.c fdt_resize(): ensure minimum padding 2008-10-30 20:37:57 -04:00
flash.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
hush.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
image.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
iomux.c IOMUX: Add console multiplexing support. 2008-12-07 01:23:35 +01:00
kgdb.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
lcd.c lcd: Let the board code show board-specific info cleanup 2008-12-07 00:08:33 +01:00
lynxkdi.c common: Move conditional compilation to Makefile 2008-08-13 01:40:38 +02:00
main.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
Makefile IOMUX: Add console multiplexing support. 2008-12-07 01:23:35 +01:00
memsize.c Sequential accesses to non-existent memory must be synchronized, 2006-11-06 17:06:36 +01:00
miiphyutil.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
s_record.c Initial revision 2002-08-17 09:36:01 +00:00
serial.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
update.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
usb.c USB style patch, 80 chars strict 2008-11-28 21:24:12 +01:00
usb_kbd.c rename CFG_ macros to CONFIG_SYS 2008-10-18 21:54:03 +02:00
usb_storage.c common: Move conditional compilation to Makefile 2008-08-13 01:40:38 +02:00
xyzModem.c Coding Style cleanup. 2006-08-31 16:46:53 +02:00