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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2015-10-14 08:46:36 (GMT)
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2015-10-14 08:46:36 (GMT)
commit13a3972585af60ec367d209cedbd3601e0c77467 (patch)
tree4b3312669b3e501f6bc10b39d8c7bbf516f07aac /doc/README.switch_config
parent208bd51396fb606dbdcf45b064e6b372d7dd3e81 (diff)
parent297faccca2235e359012118495b9b73451d54bb9 (diff)
downloadu-boot-13a3972585af60ec367d209cedbd3601e0c77467.tar.xz
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-On the enbw_cmc board is a KSZ8864RMN switch which needs
-configured through spi before working. This is done on
-startup from u-boot through a config file stored at an
-address specified in the "hwconfig" environment variable,
-subcommand "config".
-
-For example on the enbw_cmc board:
-
-hwconfig=switch:lan=on,pwl=off,config=0x60160000
-
-The file has the following structure:
-
-- a comment starts with a '#' or a ';' and ends with a newline
-- The switch needs for its config a reg/value pair, so we
- have two columns in the file:
- reg : contains the register address
- value: contains a 8 bit register value
- This 2 columns are seperated through space or tab.
-
-example (minimal configuration on the enbw_cmc board):
-
-;reg value comment
-;-----------------------------------------
-0x01 0x00
-0x01 0x01 ; Start Switch with this configuration